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; | |
6f73a7f8 | 36 | unsigned int pingpong; |
de890a1e SL |
37 | }; |
38 | ||
664fb3bd JA |
39 | struct udp_close_msg { |
40 | uint32_t magic; | |
41 | uint32_t cmd; | |
42 | }; | |
43 | ||
44 | enum { | |
45 | FIO_LINK_CLOSE = 0x89, | |
b96d2430 JA |
46 | FIO_LINK_OPEN_CLOSE_MAGIC = 0x6c696e6b, |
47 | FIO_LINK_OPEN = 0x98, | |
0fd666bf JA |
48 | |
49 | FIO_TYPE_TCP = 1, | |
50 | FIO_TYPE_UDP = 2, | |
51 | FIO_TYPE_UNIX = 3, | |
664fb3bd JA |
52 | }; |
53 | ||
de890a1e SL |
54 | static int str_hostname_cb(void *data, const char *input); |
55 | static struct fio_option options[] = { | |
56 | { | |
57 | .name = "hostname", | |
58 | .type = FIO_OPT_STR_STORE, | |
59 | .cb = str_hostname_cb, | |
60 | .help = "Hostname for net IO engine", | |
61 | }, | |
62 | { | |
63 | .name = "port", | |
64 | .type = FIO_OPT_INT, | |
65 | .off1 = offsetof(struct netio_options, port), | |
66 | .minval = 1, | |
67 | .maxval = 65535, | |
68 | .help = "Port to use for TCP or UDP net connections", | |
69 | }, | |
70 | { | |
71 | .name = "protocol", | |
72 | .alias = "proto", | |
73 | .type = FIO_OPT_STR, | |
74 | .off1 = offsetof(struct netio_options, proto), | |
75 | .help = "Network protocol to use", | |
76 | .def = "tcp", | |
77 | .posval = { | |
78 | { .ival = "tcp", | |
79 | .oval = FIO_TYPE_TCP, | |
80 | .help = "Transmission Control Protocol", | |
81 | }, | |
82 | { .ival = "udp", | |
83 | .oval = FIO_TYPE_UDP, | |
f5cc3d0e | 84 | .help = "User Datagram Protocol", |
de890a1e SL |
85 | }, |
86 | { .ival = "unix", | |
87 | .oval = FIO_TYPE_UNIX, | |
88 | .help = "UNIX domain socket", | |
89 | }, | |
90 | }, | |
91 | }, | |
92 | { | |
93 | .name = "listen", | |
94 | .type = FIO_OPT_STR_SET, | |
95 | .off1 = offsetof(struct netio_options, listen), | |
96 | .help = "Listen for incoming TCP connections", | |
97 | }, | |
6f73a7f8 JA |
98 | { |
99 | .name = "pingpong", | |
100 | .type = FIO_OPT_STR_SET, | |
101 | .off1 = offsetof(struct netio_options, pingpong), | |
102 | .help = "Ping-pong IO requests", | |
103 | }, | |
de890a1e SL |
104 | { |
105 | .name = NULL, | |
106 | }, | |
107 | }; | |
108 | ||
371d456c JA |
109 | /* |
110 | * Return -1 for error and 'nr events' for a positive number | |
111 | * of events | |
112 | */ | |
113 | static int poll_wait(struct thread_data *td, int fd, short events) | |
114 | { | |
115 | struct pollfd pfd; | |
116 | int ret; | |
117 | ||
118 | while (!td->terminate) { | |
119 | pfd.fd = fd; | |
120 | pfd.events = events; | |
121 | ret = poll(&pfd, 1, -1); | |
122 | if (ret < 0) { | |
123 | if (errno == EINTR) | |
d5b388a5 | 124 | break; |
371d456c JA |
125 | |
126 | td_verror(td, errno, "poll"); | |
127 | return -1; | |
128 | } else if (!ret) | |
129 | continue; | |
130 | ||
131 | break; | |
132 | } | |
133 | ||
134 | if (pfd.revents & events) | |
135 | return 1; | |
371d456c JA |
136 | |
137 | return -1; | |
138 | } | |
139 | ||
ed92ac0c JA |
140 | static int fio_netio_prep(struct thread_data *td, struct io_u *io_u) |
141 | { | |
de890a1e | 142 | struct netio_options *o = td->eo; |
ed92ac0c | 143 | |
7a6499da JA |
144 | /* |
145 | * Make sure we don't see spurious reads to a receiver, and vice versa | |
146 | */ | |
de890a1e SL |
147 | if (o->proto == FIO_TYPE_TCP) |
148 | return 0; | |
149 | ||
150 | if ((o->listen && io_u->ddir == DDIR_WRITE) || | |
151 | (!o->listen && io_u->ddir == DDIR_READ)) { | |
e1161c32 | 152 | td_verror(td, EINVAL, "bad direction"); |
7a6499da | 153 | return 1; |
ed92ac0c | 154 | } |
3f457bea | 155 | |
f85ac25a | 156 | return 0; |
ed92ac0c JA |
157 | } |
158 | ||
5921e80c | 159 | #ifdef FIO_HAVE_SPLICE |
cd963e18 | 160 | static int splice_io_u(int fdin, int fdout, unsigned int len) |
ed92ac0c | 161 | { |
9cce02e8 | 162 | int bytes = 0; |
7a6499da | 163 | |
9cce02e8 | 164 | while (len) { |
cd963e18 | 165 | int ret = splice(fdin, NULL, fdout, NULL, len, 0); |
9cce02e8 JA |
166 | |
167 | if (ret < 0) { | |
168 | if (!bytes) | |
169 | bytes = ret; | |
170 | ||
171 | break; | |
172 | } else if (!ret) | |
173 | break; | |
174 | ||
175 | bytes += ret; | |
f657a2fb | 176 | len -= ret; |
9cce02e8 JA |
177 | } |
178 | ||
179 | return bytes; | |
180 | } | |
181 | ||
182 | /* | |
cd963e18 | 183 | * Receive bytes from a socket and fill them into the internal pipe |
9cce02e8 | 184 | */ |
cd963e18 | 185 | static int splice_in(struct thread_data *td, struct io_u *io_u) |
9cce02e8 JA |
186 | { |
187 | struct netio_data *nd = td->io_ops->data; | |
9cce02e8 | 188 | |
cd963e18 | 189 | return splice_io_u(io_u->file->fd, nd->pipes[1], io_u->xfer_buflen); |
9cce02e8 JA |
190 | } |
191 | ||
192 | /* | |
cd963e18 | 193 | * Transmit 'len' bytes from the internal pipe |
9cce02e8 | 194 | */ |
cd963e18 JA |
195 | static int splice_out(struct thread_data *td, struct io_u *io_u, |
196 | unsigned int len) | |
9cce02e8 JA |
197 | { |
198 | struct netio_data *nd = td->io_ops->data; | |
cd963e18 JA |
199 | |
200 | return splice_io_u(nd->pipes[0], io_u->file->fd, len); | |
201 | } | |
202 | ||
203 | static int vmsplice_io_u(struct io_u *io_u, int fd, unsigned int len) | |
204 | { | |
9cce02e8 JA |
205 | struct iovec iov = { |
206 | .iov_base = io_u->xfer_buf, | |
207 | .iov_len = len, | |
208 | }; | |
209 | int bytes = 0; | |
210 | ||
211 | while (iov.iov_len) { | |
cd963e18 | 212 | int ret = vmsplice(fd, &iov, 1, SPLICE_F_MOVE); |
9cce02e8 JA |
213 | |
214 | if (ret < 0) { | |
215 | if (!bytes) | |
216 | bytes = ret; | |
217 | break; | |
218 | } else if (!ret) | |
219 | break; | |
220 | ||
221 | iov.iov_len -= ret; | |
cd963e18 | 222 | iov.iov_base += ret; |
f657a2fb | 223 | bytes += ret; |
9cce02e8 JA |
224 | } |
225 | ||
226 | return bytes; | |
cd963e18 | 227 | |
9cce02e8 JA |
228 | } |
229 | ||
230 | /* | |
cd963e18 | 231 | * vmsplice() pipe to io_u buffer |
9cce02e8 | 232 | */ |
cd963e18 JA |
233 | static int vmsplice_io_u_out(struct thread_data *td, struct io_u *io_u, |
234 | unsigned int len) | |
9cce02e8 JA |
235 | { |
236 | struct netio_data *nd = td->io_ops->data; | |
9cce02e8 | 237 | |
cd963e18 JA |
238 | return vmsplice_io_u(io_u, nd->pipes[0], len); |
239 | } | |
9cce02e8 | 240 | |
cd963e18 JA |
241 | /* |
242 | * vmsplice() io_u to pipe | |
243 | */ | |
244 | static int vmsplice_io_u_in(struct thread_data *td, struct io_u *io_u) | |
245 | { | |
246 | struct netio_data *nd = td->io_ops->data; | |
ed92ac0c | 247 | |
cd963e18 | 248 | return vmsplice_io_u(io_u, nd->pipes[1], io_u->xfer_buflen); |
9cce02e8 JA |
249 | } |
250 | ||
cd963e18 JA |
251 | /* |
252 | * splice receive - transfer socket data into a pipe using splice, then map | |
253 | * that pipe data into the io_u using vmsplice. | |
254 | */ | |
9cce02e8 JA |
255 | static int fio_netio_splice_in(struct thread_data *td, struct io_u *io_u) |
256 | { | |
257 | int ret; | |
258 | ||
259 | ret = splice_in(td, io_u); | |
cd963e18 JA |
260 | if (ret > 0) |
261 | return vmsplice_io_u_out(td, io_u, ret); | |
9cce02e8 | 262 | |
cd963e18 | 263 | return ret; |
9cce02e8 JA |
264 | } |
265 | ||
cd963e18 JA |
266 | /* |
267 | * splice transmit - map data from the io_u into a pipe by using vmsplice, | |
268 | * then transfer that pipe to a socket using splice. | |
269 | */ | |
9cce02e8 JA |
270 | static int fio_netio_splice_out(struct thread_data *td, struct io_u *io_u) |
271 | { | |
272 | int ret; | |
273 | ||
274 | ret = vmsplice_io_u_in(td, io_u); | |
cd963e18 JA |
275 | if (ret > 0) |
276 | return splice_out(td, io_u, ret); | |
9cce02e8 | 277 | |
cd963e18 | 278 | return ret; |
9cce02e8 | 279 | } |
5921e80c JA |
280 | #else |
281 | static int fio_netio_splice_in(struct thread_data *td, struct io_u *io_u) | |
282 | { | |
af8771b9 | 283 | errno = EOPNOTSUPP; |
5921e80c JA |
284 | return -1; |
285 | } | |
286 | ||
287 | static int fio_netio_splice_out(struct thread_data *td, struct io_u *io_u) | |
288 | { | |
af8771b9 | 289 | errno = EOPNOTSUPP; |
5921e80c JA |
290 | return -1; |
291 | } | |
292 | #endif | |
9cce02e8 JA |
293 | |
294 | static int fio_netio_send(struct thread_data *td, struct io_u *io_u) | |
295 | { | |
414c2a3e | 296 | struct netio_data *nd = td->io_ops->data; |
de890a1e | 297 | struct netio_options *o = td->eo; |
6f73a7f8 | 298 | int ret, flags = 0; |
371d456c | 299 | |
664fb3bd | 300 | do { |
de890a1e | 301 | if (o->proto == FIO_TYPE_UDP) { |
62b38926 JA |
302 | struct sockaddr *to = (struct sockaddr *) &nd->addr; |
303 | ||
664fb3bd | 304 | ret = sendto(io_u->file->fd, io_u->xfer_buf, |
62b38926 JA |
305 | io_u->xfer_buflen, flags, to, |
306 | sizeof(*to)); | |
664fb3bd JA |
307 | } else { |
308 | /* | |
309 | * if we are going to write more, set MSG_MORE | |
310 | */ | |
5921e80c | 311 | #ifdef MSG_MORE |
6f73a7f8 JA |
312 | if ((td->this_io_bytes[DDIR_WRITE] + io_u->xfer_buflen < |
313 | td->o.size) && !o->pingpong) | |
664fb3bd | 314 | flags |= MSG_MORE; |
5921e80c | 315 | #endif |
664fb3bd JA |
316 | ret = send(io_u->file->fd, io_u->xfer_buf, |
317 | io_u->xfer_buflen, flags); | |
318 | } | |
319 | if (ret > 0) | |
320 | break; | |
9cce02e8 | 321 | |
664fb3bd JA |
322 | ret = poll_wait(td, io_u->file->fd, POLLOUT); |
323 | if (ret <= 0) | |
324 | break; | |
664fb3bd JA |
325 | } while (1); |
326 | ||
327 | return ret; | |
328 | } | |
329 | ||
330 | static int is_udp_close(struct io_u *io_u, int len) | |
331 | { | |
332 | struct udp_close_msg *msg; | |
333 | ||
334 | if (len != sizeof(struct udp_close_msg)) | |
335 | return 0; | |
336 | ||
337 | msg = io_u->xfer_buf; | |
b96d2430 | 338 | if (ntohl(msg->magic) != FIO_LINK_OPEN_CLOSE_MAGIC) |
664fb3bd JA |
339 | return 0; |
340 | if (ntohl(msg->cmd) != FIO_LINK_CLOSE) | |
341 | return 0; | |
342 | ||
343 | return 1; | |
9cce02e8 JA |
344 | } |
345 | ||
414c2a3e | 346 | static int fio_netio_recv(struct thread_data *td, struct io_u *io_u) |
9cce02e8 | 347 | { |
414c2a3e | 348 | struct netio_data *nd = td->io_ops->data; |
de890a1e | 349 | struct netio_options *o = td->eo; |
6f73a7f8 | 350 | int ret, flags = 0; |
664fb3bd JA |
351 | |
352 | do { | |
de890a1e | 353 | if (o->proto == FIO_TYPE_UDP) { |
5ba13ea6 | 354 | fio_socklen_t len = sizeof(nd->addr); |
62b38926 | 355 | struct sockaddr *from = (struct sockaddr *) &nd->addr; |
664fb3bd JA |
356 | |
357 | ret = recvfrom(io_u->file->fd, io_u->xfer_buf, | |
62b38926 | 358 | io_u->xfer_buflen, flags, from, &len); |
664fb3bd JA |
359 | if (is_udp_close(io_u, ret)) { |
360 | td->done = 1; | |
361 | return 0; | |
362 | } | |
363 | } else { | |
364 | ret = recv(io_u->file->fd, io_u->xfer_buf, | |
365 | io_u->xfer_buflen, flags); | |
366 | } | |
367 | if (ret > 0) | |
368 | break; | |
7d988f68 JA |
369 | else if (!ret && (flags & MSG_WAITALL)) |
370 | break; | |
9cce02e8 | 371 | |
664fb3bd JA |
372 | ret = poll_wait(td, io_u->file->fd, POLLIN); |
373 | if (ret <= 0) | |
374 | break; | |
664fb3bd JA |
375 | flags |= MSG_WAITALL; |
376 | } while (1); | |
414c2a3e | 377 | |
664fb3bd | 378 | return ret; |
9cce02e8 JA |
379 | } |
380 | ||
6f73a7f8 JA |
381 | static int __fio_netio_queue(struct thread_data *td, struct io_u *io_u, |
382 | enum fio_ddir ddir) | |
9cce02e8 JA |
383 | { |
384 | struct netio_data *nd = td->io_ops->data; | |
de890a1e | 385 | struct netio_options *o = td->eo; |
9cce02e8 JA |
386 | int ret; |
387 | ||
6f73a7f8 | 388 | if (ddir == DDIR_WRITE) { |
de890a1e SL |
389 | if (!nd->use_splice || o->proto == FIO_TYPE_UDP || |
390 | o->proto == FIO_TYPE_UNIX) | |
9cce02e8 | 391 | ret = fio_netio_send(td, io_u); |
414c2a3e JA |
392 | else |
393 | ret = fio_netio_splice_out(td, io_u); | |
6f73a7f8 | 394 | } else if (ddir == DDIR_READ) { |
de890a1e SL |
395 | if (!nd->use_splice || o->proto == FIO_TYPE_UDP || |
396 | o->proto == FIO_TYPE_UNIX) | |
414c2a3e | 397 | ret = fio_netio_recv(td, io_u); |
9cce02e8 | 398 | else |
414c2a3e | 399 | ret = fio_netio_splice_in(td, io_u); |
d4f12dd0 | 400 | } else |
7a6499da | 401 | ret = 0; /* must be a SYNC */ |
ed92ac0c | 402 | |
cec6b55d | 403 | if (ret != (int) io_u->xfer_buflen) { |
22819ec2 | 404 | if (ret >= 0) { |
cec6b55d JA |
405 | io_u->resid = io_u->xfer_buflen - ret; |
406 | io_u->error = 0; | |
36167d82 | 407 | return FIO_Q_COMPLETED; |
414c2a3e JA |
408 | } else { |
409 | int err = errno; | |
410 | ||
6f73a7f8 | 411 | if (ddir == DDIR_WRITE && err == EMSGSIZE) |
414c2a3e JA |
412 | return FIO_Q_BUSY; |
413 | ||
414 | io_u->error = err; | |
415 | } | |
ed92ac0c JA |
416 | } |
417 | ||
36167d82 | 418 | if (io_u->error) |
e1161c32 | 419 | td_verror(td, io_u->error, "xfer"); |
ed92ac0c | 420 | |
36167d82 | 421 | return FIO_Q_COMPLETED; |
ed92ac0c JA |
422 | } |
423 | ||
6f73a7f8 JA |
424 | static int fio_netio_queue(struct thread_data *td, struct io_u *io_u) |
425 | { | |
426 | struct netio_options *o = td->eo; | |
427 | int ret; | |
428 | ||
429 | fio_ro_check(td, io_u); | |
430 | ||
431 | ret = __fio_netio_queue(td, io_u, io_u->ddir); | |
432 | if (!o->pingpong || ret != FIO_Q_COMPLETED) | |
433 | return ret; | |
434 | ||
435 | /* | |
436 | * For ping-pong mode, receive or send reply as needed | |
437 | */ | |
438 | if (td_read(td) && io_u->ddir == DDIR_READ) | |
439 | ret = __fio_netio_queue(td, io_u, DDIR_WRITE); | |
440 | else if (td_write(td) && io_u->ddir == DDIR_WRITE) | |
441 | ret = __fio_netio_queue(td, io_u, DDIR_READ); | |
442 | ||
443 | return ret; | |
444 | } | |
445 | ||
b5af8293 | 446 | static int fio_netio_connect(struct thread_data *td, struct fio_file *f) |
ed92ac0c | 447 | { |
b5af8293 | 448 | struct netio_data *nd = td->io_ops->data; |
de890a1e | 449 | struct netio_options *o = td->eo; |
0fd666bf | 450 | int type, domain; |
414c2a3e | 451 | |
de890a1e | 452 | if (o->proto == FIO_TYPE_TCP) { |
0fd666bf | 453 | domain = AF_INET; |
414c2a3e | 454 | type = SOCK_STREAM; |
de890a1e | 455 | } else if (o->proto == FIO_TYPE_UDP) { |
0fd666bf | 456 | domain = AF_INET; |
414c2a3e | 457 | type = SOCK_DGRAM; |
de890a1e | 458 | } else if (o->proto == FIO_TYPE_UNIX) { |
0fd666bf JA |
459 | domain = AF_UNIX; |
460 | type = SOCK_STREAM; | |
461 | } else { | |
de890a1e | 462 | log_err("fio: bad network type %d\n", o->proto); |
0fd666bf JA |
463 | f->fd = -1; |
464 | return 1; | |
465 | } | |
ed92ac0c | 466 | |
0fd666bf | 467 | f->fd = socket(domain, type, 0); |
b5af8293 JA |
468 | if (f->fd < 0) { |
469 | td_verror(td, errno, "socket"); | |
470 | return 1; | |
ed92ac0c JA |
471 | } |
472 | ||
de890a1e | 473 | if (o->proto == FIO_TYPE_UDP) |
414c2a3e | 474 | return 0; |
de890a1e | 475 | else if (o->proto == FIO_TYPE_TCP) { |
0fd666bf | 476 | fio_socklen_t len = sizeof(nd->addr); |
414c2a3e | 477 | |
0fd666bf JA |
478 | if (connect(f->fd, (struct sockaddr *) &nd->addr, len) < 0) { |
479 | td_verror(td, errno, "connect"); | |
b94cba47 | 480 | close(f->fd); |
0fd666bf JA |
481 | return 1; |
482 | } | |
483 | } else { | |
484 | struct sockaddr_un *addr = &nd->addr_un; | |
485 | fio_socklen_t len; | |
486 | ||
487 | len = sizeof(addr->sun_family) + strlen(addr->sun_path) + 1; | |
488 | ||
489 | if (connect(f->fd, (struct sockaddr *) addr, len) < 0) { | |
490 | td_verror(td, errno, "connect"); | |
b94cba47 | 491 | close(f->fd); |
0fd666bf JA |
492 | return 1; |
493 | } | |
ed92ac0c JA |
494 | } |
495 | ||
496 | return 0; | |
ed92ac0c JA |
497 | } |
498 | ||
b5af8293 | 499 | static int fio_netio_accept(struct thread_data *td, struct fio_file *f) |
5fdd124a | 500 | { |
b5af8293 | 501 | struct netio_data *nd = td->io_ops->data; |
de890a1e | 502 | struct netio_options *o = td->eo; |
5ba13ea6 | 503 | fio_socklen_t socklen = sizeof(nd->addr); |
859088d3 | 504 | int state; |
5fdd124a | 505 | |
de890a1e | 506 | if (o->proto == FIO_TYPE_UDP) { |
414c2a3e JA |
507 | f->fd = nd->listenfd; |
508 | return 0; | |
509 | } | |
510 | ||
859088d3 JA |
511 | state = td->runstate; |
512 | td_set_runstate(td, TD_SETTING_UP); | |
513 | ||
6d86144d | 514 | log_info("fio: waiting for connection\n"); |
5fdd124a | 515 | |
371d456c | 516 | if (poll_wait(td, nd->listenfd, POLLIN) < 0) |
859088d3 | 517 | goto err; |
0c09442b | 518 | |
371d456c JA |
519 | f->fd = accept(nd->listenfd, (struct sockaddr *) &nd->addr, &socklen); |
520 | if (f->fd < 0) { | |
521 | td_verror(td, errno, "accept"); | |
859088d3 | 522 | goto err; |
b5af8293 | 523 | } |
5fdd124a | 524 | |
0cae16ff | 525 | reset_all_stats(td); |
859088d3 | 526 | td_set_runstate(td, state); |
b5af8293 | 527 | return 0; |
859088d3 JA |
528 | err: |
529 | td_set_runstate(td, state); | |
530 | return 1; | |
b5af8293 JA |
531 | } |
532 | ||
664fb3bd JA |
533 | static void fio_netio_udp_close(struct thread_data *td, struct fio_file *f) |
534 | { | |
535 | struct netio_data *nd = td->io_ops->data; | |
536 | struct udp_close_msg msg; | |
62b38926 | 537 | struct sockaddr *to = (struct sockaddr *) &nd->addr; |
664fb3bd JA |
538 | int ret; |
539 | ||
b96d2430 | 540 | msg.magic = htonl(FIO_LINK_OPEN_CLOSE_MAGIC); |
664fb3bd JA |
541 | msg.cmd = htonl(FIO_LINK_CLOSE); |
542 | ||
62b38926 | 543 | ret = sendto(f->fd, &msg, sizeof(msg), MSG_WAITALL, to, |
664fb3bd JA |
544 | sizeof(nd->addr)); |
545 | if (ret < 0) | |
546 | td_verror(td, errno, "sendto udp link close"); | |
547 | } | |
548 | ||
549 | static int fio_netio_close_file(struct thread_data *td, struct fio_file *f) | |
550 | { | |
de890a1e | 551 | struct netio_options *o = td->eo; |
664fb3bd JA |
552 | |
553 | /* | |
554 | * If this is an UDP connection, notify the receiver that we are | |
555 | * closing down the link | |
556 | */ | |
de890a1e | 557 | if (o->proto == FIO_TYPE_UDP) |
664fb3bd JA |
558 | fio_netio_udp_close(td, f); |
559 | ||
560 | return generic_close_file(td, f); | |
561 | } | |
562 | ||
b96d2430 JA |
563 | static int fio_netio_udp_recv_open(struct thread_data *td, struct fio_file *f) |
564 | { | |
565 | struct netio_data *nd = td->io_ops->data; | |
566 | struct udp_close_msg msg; | |
567 | struct sockaddr *to = (struct sockaddr *) &nd->addr; | |
568 | fio_socklen_t len = sizeof(nd->addr); | |
569 | int ret; | |
570 | ||
571 | ret = recvfrom(f->fd, &msg, sizeof(msg), MSG_WAITALL, to, &len); | |
572 | if (ret < 0) { | |
573 | td_verror(td, errno, "sendto udp link open"); | |
574 | return ret; | |
575 | } | |
576 | ||
577 | if (ntohl(msg.magic) != FIO_LINK_OPEN_CLOSE_MAGIC || | |
578 | ntohl(msg.cmd) != FIO_LINK_OPEN) { | |
579 | log_err("fio: bad udp open magic %x/%x\n", ntohl(msg.magic), | |
580 | ntohl(msg.cmd)); | |
581 | return -1; | |
582 | } | |
583 | ||
584 | return 0; | |
585 | } | |
586 | ||
587 | static int fio_netio_udp_send_open(struct thread_data *td, struct fio_file *f) | |
588 | { | |
589 | struct netio_data *nd = td->io_ops->data; | |
590 | struct udp_close_msg msg; | |
591 | struct sockaddr *to = (struct sockaddr *) &nd->addr; | |
592 | int ret; | |
593 | ||
594 | msg.magic = htonl(FIO_LINK_OPEN_CLOSE_MAGIC); | |
595 | msg.cmd = htonl(FIO_LINK_OPEN); | |
596 | ||
597 | ret = sendto(f->fd, &msg, sizeof(msg), MSG_WAITALL, to, | |
598 | sizeof(nd->addr)); | |
599 | if (ret < 0) { | |
600 | td_verror(td, errno, "sendto udp link open"); | |
601 | return ret; | |
602 | } | |
603 | ||
604 | return 0; | |
605 | } | |
606 | ||
607 | static int fio_netio_open_file(struct thread_data *td, struct fio_file *f) | |
608 | { | |
609 | int ret; | |
610 | struct netio_options *o = td->eo; | |
611 | ||
612 | if (o->listen) | |
613 | ret = fio_netio_accept(td, f); | |
614 | else | |
615 | ret = fio_netio_connect(td, f); | |
616 | ||
617 | if (ret) { | |
618 | f->fd = -1; | |
619 | return ret; | |
620 | } | |
621 | ||
622 | if (o->proto == FIO_TYPE_UDP) { | |
623 | if (td_write(td)) | |
624 | ret = fio_netio_udp_send_open(td, f); | |
625 | else { | |
626 | int state; | |
627 | ||
628 | state = td->runstate; | |
629 | td_set_runstate(td, TD_SETTING_UP); | |
630 | ret = fio_netio_udp_recv_open(td, f); | |
631 | td_set_runstate(td, state); | |
632 | } | |
633 | } | |
634 | ||
635 | if (ret) | |
636 | fio_netio_close_file(td, f); | |
637 | ||
638 | return ret; | |
639 | } | |
640 | ||
0fd666bf JA |
641 | static int fio_netio_setup_connect_inet(struct thread_data *td, |
642 | const char *host, unsigned short port) | |
b5af8293 JA |
643 | { |
644 | struct netio_data *nd = td->io_ops->data; | |
645 | ||
166dce4b JA |
646 | if (!host) { |
647 | log_err("fio: connect with no host to connect to.\n"); | |
648 | if (td_read(td)) | |
649 | log_err("fio: did you forget to set 'listen'?\n"); | |
650 | ||
651 | td_verror(td, EINVAL, "no hostname= set"); | |
652 | return 1; | |
653 | } | |
654 | ||
b5af8293 JA |
655 | nd->addr.sin_family = AF_INET; |
656 | nd->addr.sin_port = htons(port); | |
657 | ||
658 | if (inet_aton(host, &nd->addr.sin_addr) != 1) { | |
659 | struct hostent *hent; | |
660 | ||
661 | hent = gethostbyname(host); | |
662 | if (!hent) { | |
663 | td_verror(td, errno, "gethostbyname"); | |
664 | return 1; | |
5fdd124a | 665 | } |
b5af8293 JA |
666 | |
667 | memcpy(&nd->addr.sin_addr, hent->h_addr, 4); | |
5fdd124a JA |
668 | } |
669 | ||
670 | return 0; | |
671 | } | |
672 | ||
0fd666bf JA |
673 | static int fio_netio_setup_connect_unix(struct thread_data *td, |
674 | const char *path) | |
675 | { | |
676 | struct netio_data *nd = td->io_ops->data; | |
677 | struct sockaddr_un *soun = &nd->addr_un; | |
678 | ||
679 | soun->sun_family = AF_UNIX; | |
680 | strcpy(soun->sun_path, path); | |
681 | return 0; | |
682 | } | |
683 | ||
de890a1e | 684 | static int fio_netio_setup_connect(struct thread_data *td) |
0fd666bf | 685 | { |
de890a1e | 686 | struct netio_options *o = td->eo; |
0fd666bf | 687 | |
de890a1e SL |
688 | if (o->proto == FIO_TYPE_UDP || o->proto == FIO_TYPE_TCP) |
689 | return fio_netio_setup_connect_inet(td, td->o.filename,o->port); | |
0fd666bf | 690 | else |
de890a1e | 691 | return fio_netio_setup_connect_unix(td, td->o.filename); |
0fd666bf JA |
692 | } |
693 | ||
694 | static int fio_netio_setup_listen_unix(struct thread_data *td, const char *path) | |
695 | { | |
696 | struct netio_data *nd = td->io_ops->data; | |
697 | struct sockaddr_un *addr = &nd->addr_un; | |
698 | mode_t mode; | |
699 | int len, fd; | |
700 | ||
701 | fd = socket(AF_UNIX, SOCK_STREAM, 0); | |
702 | if (fd < 0) { | |
703 | log_err("fio: socket: %s\n", strerror(errno)); | |
704 | return -1; | |
705 | } | |
706 | ||
707 | mode = umask(000); | |
708 | ||
709 | memset(addr, 0, sizeof(*addr)); | |
710 | addr->sun_family = AF_UNIX; | |
711 | strcpy(addr->sun_path, path); | |
712 | unlink(path); | |
713 | ||
714 | len = sizeof(addr->sun_family) + strlen(path) + 1; | |
715 | ||
716 | if (bind(fd, (struct sockaddr *) addr, len) < 0) { | |
717 | log_err("fio: bind: %s\n", strerror(errno)); | |
b94cba47 | 718 | close(fd); |
0fd666bf JA |
719 | return -1; |
720 | } | |
721 | ||
722 | umask(mode); | |
723 | nd->listenfd = fd; | |
724 | return 0; | |
725 | } | |
726 | ||
727 | static int fio_netio_setup_listen_inet(struct thread_data *td, short port) | |
ed92ac0c | 728 | { |
b5af8293 | 729 | struct netio_data *nd = td->io_ops->data; |
de890a1e | 730 | struct netio_options *o = td->eo; |
414c2a3e | 731 | int fd, opt, type; |
ed92ac0c | 732 | |
de890a1e | 733 | if (o->proto == FIO_TYPE_TCP) |
414c2a3e JA |
734 | type = SOCK_STREAM; |
735 | else | |
736 | type = SOCK_DGRAM; | |
737 | ||
0fd666bf | 738 | fd = socket(AF_INET, type, 0); |
ed92ac0c | 739 | if (fd < 0) { |
e1161c32 | 740 | td_verror(td, errno, "socket"); |
ed92ac0c JA |
741 | return 1; |
742 | } | |
743 | ||
744 | opt = 1; | |
745 | if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt)) < 0) { | |
e1161c32 | 746 | td_verror(td, errno, "setsockopt"); |
ed92ac0c JA |
747 | return 1; |
748 | } | |
6bedbfaf JA |
749 | #ifdef SO_REUSEPORT |
750 | if (setsockopt(fd, SOL_SOCKET, SO_REUSEPORT, &opt, sizeof(opt)) < 0) { | |
e1161c32 | 751 | td_verror(td, errno, "setsockopt"); |
6bedbfaf JA |
752 | return 1; |
753 | } | |
754 | #endif | |
ed92ac0c | 755 | |
b5af8293 JA |
756 | nd->addr.sin_family = AF_INET; |
757 | nd->addr.sin_addr.s_addr = htonl(INADDR_ANY); | |
758 | nd->addr.sin_port = htons(port); | |
ed92ac0c | 759 | |
b5af8293 | 760 | if (bind(fd, (struct sockaddr *) &nd->addr, sizeof(nd->addr)) < 0) { |
e1161c32 | 761 | td_verror(td, errno, "bind"); |
ed92ac0c JA |
762 | return 1; |
763 | } | |
0fd666bf JA |
764 | |
765 | nd->listenfd = fd; | |
766 | return 0; | |
767 | } | |
768 | ||
de890a1e | 769 | static int fio_netio_setup_listen(struct thread_data *td) |
0fd666bf JA |
770 | { |
771 | struct netio_data *nd = td->io_ops->data; | |
de890a1e | 772 | struct netio_options *o = td->eo; |
0fd666bf JA |
773 | int ret; |
774 | ||
de890a1e SL |
775 | if (o->proto == FIO_TYPE_UDP || o->proto == FIO_TYPE_TCP) |
776 | ret = fio_netio_setup_listen_inet(td, o->port); | |
0fd666bf | 777 | else |
de890a1e | 778 | ret = fio_netio_setup_listen_unix(td, td->o.filename); |
0fd666bf JA |
779 | |
780 | if (ret) | |
781 | return ret; | |
de890a1e | 782 | if (o->proto == FIO_TYPE_UDP) |
0fd666bf JA |
783 | return 0; |
784 | ||
785 | if (listen(nd->listenfd, 10) < 0) { | |
e1161c32 | 786 | td_verror(td, errno, "listen"); |
0fd666bf | 787 | nd->listenfd = -1; |
ed92ac0c JA |
788 | return 1; |
789 | } | |
790 | ||
b5af8293 | 791 | return 0; |
ed92ac0c JA |
792 | } |
793 | ||
9bec88e1 | 794 | static int fio_netio_init(struct thread_data *td) |
ed92ac0c | 795 | { |
de890a1e | 796 | struct netio_options *o = td->eo; |
af52b345 | 797 | int ret; |
ed92ac0c | 798 | |
3f457bea BC |
799 | #ifdef WIN32 |
800 | WSADATA wsd; | |
801 | WSAStartup(MAKEWORD(2,2), &wsd); | |
802 | #endif | |
803 | ||
16d55aae JA |
804 | if (td_random(td)) { |
805 | log_err("fio: network IO can't be random\n"); | |
806 | return 1; | |
807 | } | |
ed92ac0c | 808 | |
de890a1e SL |
809 | if (o->proto == FIO_TYPE_UNIX && o->port) { |
810 | log_err("fio: network IO port not valid with unix socket\n"); | |
811 | return 1; | |
812 | } else if (o->proto != FIO_TYPE_UNIX && !o->port) { | |
813 | log_err("fio: network IO requires port for tcp or udp\n"); | |
814 | return 1; | |
815 | } | |
ed92ac0c | 816 | |
de890a1e SL |
817 | if (o->proto != FIO_TYPE_TCP) { |
818 | if (o->listen) { | |
9b986065 JA |
819 | log_err("fio: listen only valid for TCP proto IO\n"); |
820 | return 1; | |
de890a1e SL |
821 | } |
822 | if (td_rw(td)) { | |
9b986065 | 823 | log_err("fio: datagram network connections must be" |
de890a1e | 824 | " read OR write\n"); |
9b986065 JA |
825 | return 1; |
826 | } | |
827 | if (o->proto == FIO_TYPE_UNIX && !td->o.filename) { | |
828 | log_err("fio: UNIX sockets need host/filename\n"); | |
829 | return 1; | |
de890a1e SL |
830 | } |
831 | o->listen = td_read(td); | |
832 | } | |
443662ef | 833 | |
de890a1e SL |
834 | if (o->proto != FIO_TYPE_UNIX && o->listen && td->o.filename) { |
835 | log_err("fio: hostname not valid for inbound network IO\n"); | |
836 | return 1; | |
414c2a3e | 837 | } |
0fd666bf | 838 | |
de890a1e SL |
839 | if (o->listen) |
840 | ret = fio_netio_setup_listen(td); | |
0fd666bf | 841 | else |
de890a1e | 842 | ret = fio_netio_setup_connect(td); |
ed92ac0c | 843 | |
7bb48f84 | 844 | return ret; |
ed92ac0c JA |
845 | } |
846 | ||
b5af8293 | 847 | static void fio_netio_cleanup(struct thread_data *td) |
9bec88e1 | 848 | { |
b5af8293 JA |
849 | struct netio_data *nd = td->io_ops->data; |
850 | ||
851 | if (nd) { | |
64b24cd8 JA |
852 | if (nd->listenfd != -1) |
853 | close(nd->listenfd); | |
854 | if (nd->pipes[0] != -1) | |
855 | close(nd->pipes[0]); | |
856 | if (nd->pipes[1] != -1) | |
857 | close(nd->pipes[1]); | |
858 | ||
b5af8293 | 859 | free(nd); |
b5af8293 JA |
860 | } |
861 | } | |
862 | ||
863 | static int fio_netio_setup(struct thread_data *td) | |
864 | { | |
7bb48f84 | 865 | struct netio_data *nd; |
7bb48f84 | 866 | |
de890a1e SL |
867 | if (!td->files_index) { |
868 | add_file(td, td->o.filename ?: "net"); | |
869 | td->o.nr_files = td->o.nr_files ?: 1; | |
870 | } | |
871 | ||
7bb48f84 JA |
872 | if (!td->io_ops->data) { |
873 | nd = malloc(sizeof(*nd));; | |
874 | ||
875 | memset(nd, 0, sizeof(*nd)); | |
876 | nd->listenfd = -1; | |
64b24cd8 | 877 | nd->pipes[0] = nd->pipes[1] = -1; |
7bb48f84 | 878 | td->io_ops->data = nd; |
7bb48f84 | 879 | } |
b5af8293 | 880 | |
9bec88e1 JA |
881 | return 0; |
882 | } | |
883 | ||
5921e80c | 884 | #ifdef FIO_HAVE_SPLICE |
9cce02e8 JA |
885 | static int fio_netio_setup_splice(struct thread_data *td) |
886 | { | |
887 | struct netio_data *nd; | |
888 | ||
889 | fio_netio_setup(td); | |
890 | ||
891 | nd = td->io_ops->data; | |
892 | if (nd) { | |
893 | if (pipe(nd->pipes) < 0) | |
894 | return 1; | |
895 | ||
896 | nd->use_splice = 1; | |
897 | return 0; | |
898 | } | |
899 | ||
900 | return 1; | |
901 | } | |
902 | ||
5921e80c | 903 | static struct ioengine_ops ioengine_splice = { |
de890a1e SL |
904 | .name = "netsplice", |
905 | .version = FIO_IOOPS_VERSION, | |
906 | .prep = fio_netio_prep, | |
907 | .queue = fio_netio_queue, | |
908 | .setup = fio_netio_setup_splice, | |
909 | .init = fio_netio_init, | |
910 | .cleanup = fio_netio_cleanup, | |
911 | .open_file = fio_netio_open_file, | |
912 | .close_file = generic_close_file, | |
913 | .options = options, | |
914 | .option_struct_size = sizeof(struct netio_options), | |
915 | .flags = FIO_SYNCIO | FIO_DISKLESSIO | FIO_UNIDIR | | |
916 | FIO_SIGTERM | FIO_PIPEIO, | |
ed92ac0c | 917 | }; |
5921e80c | 918 | #endif |
ed92ac0c | 919 | |
5921e80c | 920 | static struct ioengine_ops ioengine_rw = { |
de890a1e SL |
921 | .name = "net", |
922 | .version = FIO_IOOPS_VERSION, | |
923 | .prep = fio_netio_prep, | |
924 | .queue = fio_netio_queue, | |
925 | .setup = fio_netio_setup, | |
926 | .init = fio_netio_init, | |
927 | .cleanup = fio_netio_cleanup, | |
928 | .open_file = fio_netio_open_file, | |
929 | .close_file = fio_netio_close_file, | |
930 | .options = options, | |
931 | .option_struct_size = sizeof(struct netio_options), | |
932 | .flags = FIO_SYNCIO | FIO_DISKLESSIO | FIO_UNIDIR | | |
933 | FIO_SIGTERM | FIO_PIPEIO, | |
9cce02e8 JA |
934 | }; |
935 | ||
de890a1e SL |
936 | static int str_hostname_cb(void *data, const char *input) |
937 | { | |
938 | struct netio_options *o = data; | |
939 | ||
940 | if (o->td->o.filename) | |
941 | free(o->td->o.filename); | |
942 | o->td->o.filename = strdup(input); | |
943 | return 0; | |
944 | } | |
945 | ||
ed92ac0c JA |
946 | static void fio_init fio_netio_register(void) |
947 | { | |
9cce02e8 | 948 | register_ioengine(&ioengine_rw); |
5921e80c | 949 | #ifdef FIO_HAVE_SPLICE |
9cce02e8 | 950 | register_ioengine(&ioengine_splice); |
5921e80c | 951 | #endif |
ed92ac0c JA |
952 | } |
953 | ||
954 | static void fio_exit fio_netio_unregister(void) | |
955 | { | |
9cce02e8 | 956 | unregister_ioengine(&ioengine_rw); |
5921e80c | 957 | #ifdef FIO_HAVE_SPLICE |
9cce02e8 | 958 | unregister_ioengine(&ioengine_splice); |
5921e80c | 959 | #endif |
ed92ac0c | 960 | } |