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> | |
842805f5 | 10 | #include <signal.h> |
ed92ac0c JA |
11 | #include <errno.h> |
12 | #include <assert.h> | |
13 | #include <netinet/in.h> | |
14 | #include <arpa/inet.h> | |
15 | #include <netdb.h> | |
5fdd124a | 16 | #include <sys/poll.h> |
7292056a | 17 | #include <sys/types.h> |
0fd666bf | 18 | #include <sys/stat.h> |
7292056a | 19 | #include <sys/socket.h> |
0fd666bf | 20 | #include <sys/un.h> |
ed92ac0c JA |
21 | |
22 | #include "../fio.h" | |
ed92ac0c | 23 | |
b5af8293 JA |
24 | struct netio_data { |
25 | int listenfd; | |
9cce02e8 JA |
26 | int use_splice; |
27 | int pipes[2]; | |
b5af8293 | 28 | struct sockaddr_in addr; |
0fd666bf | 29 | struct sockaddr_un addr_un; |
b5af8293 | 30 | }; |
ed92ac0c | 31 | |
de890a1e SL |
32 | struct netio_options { |
33 | struct thread_data *td; | |
34 | unsigned int port; | |
35 | unsigned int proto; | |
36 | unsigned int listen; | |
6f73a7f8 | 37 | unsigned int pingpong; |
de890a1e SL |
38 | }; |
39 | ||
664fb3bd JA |
40 | struct udp_close_msg { |
41 | uint32_t magic; | |
42 | uint32_t cmd; | |
43 | }; | |
44 | ||
45 | enum { | |
46 | FIO_LINK_CLOSE = 0x89, | |
b96d2430 JA |
47 | FIO_LINK_OPEN_CLOSE_MAGIC = 0x6c696e6b, |
48 | FIO_LINK_OPEN = 0x98, | |
0fd666bf JA |
49 | |
50 | FIO_TYPE_TCP = 1, | |
51 | FIO_TYPE_UDP = 2, | |
52 | FIO_TYPE_UNIX = 3, | |
664fb3bd JA |
53 | }; |
54 | ||
de890a1e SL |
55 | static int str_hostname_cb(void *data, const char *input); |
56 | static struct fio_option options[] = { | |
57 | { | |
58 | .name = "hostname", | |
59 | .type = FIO_OPT_STR_STORE, | |
60 | .cb = str_hostname_cb, | |
61 | .help = "Hostname for net IO engine", | |
62 | }, | |
63 | { | |
64 | .name = "port", | |
65 | .type = FIO_OPT_INT, | |
66 | .off1 = offsetof(struct netio_options, port), | |
67 | .minval = 1, | |
68 | .maxval = 65535, | |
69 | .help = "Port to use for TCP or UDP net connections", | |
70 | }, | |
71 | { | |
72 | .name = "protocol", | |
73 | .alias = "proto", | |
74 | .type = FIO_OPT_STR, | |
75 | .off1 = offsetof(struct netio_options, proto), | |
76 | .help = "Network protocol to use", | |
77 | .def = "tcp", | |
78 | .posval = { | |
79 | { .ival = "tcp", | |
80 | .oval = FIO_TYPE_TCP, | |
81 | .help = "Transmission Control Protocol", | |
82 | }, | |
83 | { .ival = "udp", | |
84 | .oval = FIO_TYPE_UDP, | |
f5cc3d0e | 85 | .help = "User Datagram Protocol", |
de890a1e SL |
86 | }, |
87 | { .ival = "unix", | |
88 | .oval = FIO_TYPE_UNIX, | |
89 | .help = "UNIX domain socket", | |
90 | }, | |
91 | }, | |
92 | }, | |
93 | { | |
94 | .name = "listen", | |
95 | .type = FIO_OPT_STR_SET, | |
96 | .off1 = offsetof(struct netio_options, listen), | |
97 | .help = "Listen for incoming TCP connections", | |
98 | }, | |
6f73a7f8 JA |
99 | { |
100 | .name = "pingpong", | |
101 | .type = FIO_OPT_STR_SET, | |
102 | .off1 = offsetof(struct netio_options, pingpong), | |
103 | .help = "Ping-pong IO requests", | |
104 | }, | |
de890a1e SL |
105 | { |
106 | .name = NULL, | |
107 | }, | |
108 | }; | |
109 | ||
371d456c JA |
110 | /* |
111 | * Return -1 for error and 'nr events' for a positive number | |
112 | * of events | |
113 | */ | |
114 | static int poll_wait(struct thread_data *td, int fd, short events) | |
115 | { | |
116 | struct pollfd pfd; | |
117 | int ret; | |
118 | ||
119 | while (!td->terminate) { | |
120 | pfd.fd = fd; | |
121 | pfd.events = events; | |
122 | ret = poll(&pfd, 1, -1); | |
123 | if (ret < 0) { | |
124 | if (errno == EINTR) | |
d5b388a5 | 125 | break; |
371d456c JA |
126 | |
127 | td_verror(td, errno, "poll"); | |
128 | return -1; | |
129 | } else if (!ret) | |
130 | continue; | |
131 | ||
132 | break; | |
133 | } | |
134 | ||
135 | if (pfd.revents & events) | |
136 | return 1; | |
371d456c JA |
137 | |
138 | return -1; | |
139 | } | |
140 | ||
ed92ac0c JA |
141 | static int fio_netio_prep(struct thread_data *td, struct io_u *io_u) |
142 | { | |
de890a1e | 143 | struct netio_options *o = td->eo; |
ed92ac0c | 144 | |
7a6499da JA |
145 | /* |
146 | * Make sure we don't see spurious reads to a receiver, and vice versa | |
147 | */ | |
de890a1e SL |
148 | if (o->proto == FIO_TYPE_TCP) |
149 | return 0; | |
150 | ||
151 | if ((o->listen && io_u->ddir == DDIR_WRITE) || | |
152 | (!o->listen && io_u->ddir == DDIR_READ)) { | |
e1161c32 | 153 | td_verror(td, EINVAL, "bad direction"); |
7a6499da | 154 | return 1; |
ed92ac0c | 155 | } |
3f457bea | 156 | |
f85ac25a | 157 | return 0; |
ed92ac0c JA |
158 | } |
159 | ||
67bf9823 | 160 | #ifdef CONFIG_LINUX_SPLICE |
cd963e18 | 161 | static int splice_io_u(int fdin, int fdout, unsigned int len) |
ed92ac0c | 162 | { |
9cce02e8 | 163 | int bytes = 0; |
7a6499da | 164 | |
9cce02e8 | 165 | while (len) { |
cd963e18 | 166 | int ret = splice(fdin, NULL, fdout, NULL, len, 0); |
9cce02e8 JA |
167 | |
168 | if (ret < 0) { | |
169 | if (!bytes) | |
170 | bytes = ret; | |
171 | ||
172 | break; | |
173 | } else if (!ret) | |
174 | break; | |
175 | ||
176 | bytes += ret; | |
f657a2fb | 177 | len -= ret; |
9cce02e8 JA |
178 | } |
179 | ||
180 | return bytes; | |
181 | } | |
182 | ||
183 | /* | |
cd963e18 | 184 | * Receive bytes from a socket and fill them into the internal pipe |
9cce02e8 | 185 | */ |
cd963e18 | 186 | static int splice_in(struct thread_data *td, struct io_u *io_u) |
9cce02e8 JA |
187 | { |
188 | struct netio_data *nd = td->io_ops->data; | |
9cce02e8 | 189 | |
cd963e18 | 190 | return splice_io_u(io_u->file->fd, nd->pipes[1], io_u->xfer_buflen); |
9cce02e8 JA |
191 | } |
192 | ||
193 | /* | |
cd963e18 | 194 | * Transmit 'len' bytes from the internal pipe |
9cce02e8 | 195 | */ |
cd963e18 JA |
196 | static int splice_out(struct thread_data *td, struct io_u *io_u, |
197 | unsigned int len) | |
9cce02e8 JA |
198 | { |
199 | struct netio_data *nd = td->io_ops->data; | |
cd963e18 JA |
200 | |
201 | return splice_io_u(nd->pipes[0], io_u->file->fd, len); | |
202 | } | |
203 | ||
204 | static int vmsplice_io_u(struct io_u *io_u, int fd, unsigned int len) | |
205 | { | |
9cce02e8 JA |
206 | struct iovec iov = { |
207 | .iov_base = io_u->xfer_buf, | |
208 | .iov_len = len, | |
209 | }; | |
210 | int bytes = 0; | |
211 | ||
212 | while (iov.iov_len) { | |
cd963e18 | 213 | int ret = vmsplice(fd, &iov, 1, SPLICE_F_MOVE); |
9cce02e8 JA |
214 | |
215 | if (ret < 0) { | |
216 | if (!bytes) | |
217 | bytes = ret; | |
218 | break; | |
219 | } else if (!ret) | |
220 | break; | |
221 | ||
222 | iov.iov_len -= ret; | |
cd963e18 | 223 | iov.iov_base += ret; |
f657a2fb | 224 | bytes += ret; |
9cce02e8 JA |
225 | } |
226 | ||
227 | return bytes; | |
cd963e18 | 228 | |
9cce02e8 JA |
229 | } |
230 | ||
231 | /* | |
cd963e18 | 232 | * vmsplice() pipe to io_u buffer |
9cce02e8 | 233 | */ |
cd963e18 JA |
234 | static int vmsplice_io_u_out(struct thread_data *td, struct io_u *io_u, |
235 | unsigned int len) | |
9cce02e8 JA |
236 | { |
237 | struct netio_data *nd = td->io_ops->data; | |
9cce02e8 | 238 | |
cd963e18 JA |
239 | return vmsplice_io_u(io_u, nd->pipes[0], len); |
240 | } | |
9cce02e8 | 241 | |
cd963e18 JA |
242 | /* |
243 | * vmsplice() io_u to pipe | |
244 | */ | |
245 | static int vmsplice_io_u_in(struct thread_data *td, struct io_u *io_u) | |
246 | { | |
247 | struct netio_data *nd = td->io_ops->data; | |
ed92ac0c | 248 | |
cd963e18 | 249 | return vmsplice_io_u(io_u, nd->pipes[1], io_u->xfer_buflen); |
9cce02e8 JA |
250 | } |
251 | ||
cd963e18 JA |
252 | /* |
253 | * splice receive - transfer socket data into a pipe using splice, then map | |
254 | * that pipe data into the io_u using vmsplice. | |
255 | */ | |
9cce02e8 JA |
256 | static int fio_netio_splice_in(struct thread_data *td, struct io_u *io_u) |
257 | { | |
258 | int ret; | |
259 | ||
260 | ret = splice_in(td, io_u); | |
cd963e18 JA |
261 | if (ret > 0) |
262 | return vmsplice_io_u_out(td, io_u, ret); | |
9cce02e8 | 263 | |
cd963e18 | 264 | return ret; |
9cce02e8 JA |
265 | } |
266 | ||
cd963e18 JA |
267 | /* |
268 | * splice transmit - map data from the io_u into a pipe by using vmsplice, | |
269 | * then transfer that pipe to a socket using splice. | |
270 | */ | |
9cce02e8 JA |
271 | static int fio_netio_splice_out(struct thread_data *td, struct io_u *io_u) |
272 | { | |
273 | int ret; | |
274 | ||
275 | ret = vmsplice_io_u_in(td, io_u); | |
cd963e18 JA |
276 | if (ret > 0) |
277 | return splice_out(td, io_u, ret); | |
9cce02e8 | 278 | |
cd963e18 | 279 | return ret; |
9cce02e8 | 280 | } |
5921e80c JA |
281 | #else |
282 | static int fio_netio_splice_in(struct thread_data *td, struct io_u *io_u) | |
283 | { | |
af8771b9 | 284 | errno = EOPNOTSUPP; |
5921e80c JA |
285 | return -1; |
286 | } | |
287 | ||
288 | static int fio_netio_splice_out(struct thread_data *td, struct io_u *io_u) | |
289 | { | |
af8771b9 | 290 | errno = EOPNOTSUPP; |
5921e80c JA |
291 | return -1; |
292 | } | |
293 | #endif | |
9cce02e8 JA |
294 | |
295 | static int fio_netio_send(struct thread_data *td, struct io_u *io_u) | |
296 | { | |
414c2a3e | 297 | struct netio_data *nd = td->io_ops->data; |
de890a1e | 298 | struct netio_options *o = td->eo; |
6f73a7f8 | 299 | int ret, flags = 0; |
371d456c | 300 | |
664fb3bd | 301 | do { |
de890a1e | 302 | if (o->proto == FIO_TYPE_UDP) { |
62b38926 JA |
303 | struct sockaddr *to = (struct sockaddr *) &nd->addr; |
304 | ||
664fb3bd | 305 | ret = sendto(io_u->file->fd, io_u->xfer_buf, |
62b38926 JA |
306 | io_u->xfer_buflen, flags, to, |
307 | sizeof(*to)); | |
664fb3bd JA |
308 | } else { |
309 | /* | |
310 | * if we are going to write more, set MSG_MORE | |
311 | */ | |
5921e80c | 312 | #ifdef MSG_MORE |
6f73a7f8 JA |
313 | if ((td->this_io_bytes[DDIR_WRITE] + io_u->xfer_buflen < |
314 | td->o.size) && !o->pingpong) | |
664fb3bd | 315 | flags |= MSG_MORE; |
5921e80c | 316 | #endif |
664fb3bd JA |
317 | ret = send(io_u->file->fd, io_u->xfer_buf, |
318 | io_u->xfer_buflen, flags); | |
319 | } | |
320 | if (ret > 0) | |
321 | break; | |
9cce02e8 | 322 | |
664fb3bd JA |
323 | ret = poll_wait(td, io_u->file->fd, POLLOUT); |
324 | if (ret <= 0) | |
325 | break; | |
664fb3bd JA |
326 | } while (1); |
327 | ||
328 | return ret; | |
329 | } | |
330 | ||
331 | static int is_udp_close(struct io_u *io_u, int len) | |
332 | { | |
333 | struct udp_close_msg *msg; | |
334 | ||
335 | if (len != sizeof(struct udp_close_msg)) | |
336 | return 0; | |
337 | ||
338 | msg = io_u->xfer_buf; | |
b96d2430 | 339 | if (ntohl(msg->magic) != FIO_LINK_OPEN_CLOSE_MAGIC) |
664fb3bd JA |
340 | return 0; |
341 | if (ntohl(msg->cmd) != FIO_LINK_CLOSE) | |
342 | return 0; | |
343 | ||
344 | return 1; | |
9cce02e8 JA |
345 | } |
346 | ||
414c2a3e | 347 | static int fio_netio_recv(struct thread_data *td, struct io_u *io_u) |
9cce02e8 | 348 | { |
414c2a3e | 349 | struct netio_data *nd = td->io_ops->data; |
de890a1e | 350 | struct netio_options *o = td->eo; |
6f73a7f8 | 351 | int ret, flags = 0; |
664fb3bd JA |
352 | |
353 | do { | |
de890a1e | 354 | if (o->proto == FIO_TYPE_UDP) { |
67bf9823 | 355 | socklen_t len = sizeof(nd->addr); |
62b38926 | 356 | struct sockaddr *from = (struct sockaddr *) &nd->addr; |
664fb3bd JA |
357 | |
358 | ret = recvfrom(io_u->file->fd, io_u->xfer_buf, | |
62b38926 | 359 | io_u->xfer_buflen, flags, from, &len); |
664fb3bd JA |
360 | if (is_udp_close(io_u, ret)) { |
361 | td->done = 1; | |
362 | return 0; | |
363 | } | |
364 | } else { | |
365 | ret = recv(io_u->file->fd, io_u->xfer_buf, | |
366 | io_u->xfer_buflen, flags); | |
367 | } | |
368 | if (ret > 0) | |
369 | break; | |
7d988f68 JA |
370 | else if (!ret && (flags & MSG_WAITALL)) |
371 | break; | |
9cce02e8 | 372 | |
664fb3bd JA |
373 | ret = poll_wait(td, io_u->file->fd, POLLIN); |
374 | if (ret <= 0) | |
375 | break; | |
664fb3bd JA |
376 | flags |= MSG_WAITALL; |
377 | } while (1); | |
414c2a3e | 378 | |
664fb3bd | 379 | return ret; |
9cce02e8 JA |
380 | } |
381 | ||
6f73a7f8 JA |
382 | static int __fio_netio_queue(struct thread_data *td, struct io_u *io_u, |
383 | enum fio_ddir ddir) | |
9cce02e8 JA |
384 | { |
385 | struct netio_data *nd = td->io_ops->data; | |
de890a1e | 386 | struct netio_options *o = td->eo; |
9cce02e8 JA |
387 | int ret; |
388 | ||
6f73a7f8 | 389 | if (ddir == DDIR_WRITE) { |
de890a1e SL |
390 | if (!nd->use_splice || o->proto == FIO_TYPE_UDP || |
391 | o->proto == FIO_TYPE_UNIX) | |
9cce02e8 | 392 | ret = fio_netio_send(td, io_u); |
414c2a3e JA |
393 | else |
394 | ret = fio_netio_splice_out(td, io_u); | |
6f73a7f8 | 395 | } else if (ddir == DDIR_READ) { |
de890a1e SL |
396 | if (!nd->use_splice || o->proto == FIO_TYPE_UDP || |
397 | o->proto == FIO_TYPE_UNIX) | |
414c2a3e | 398 | ret = fio_netio_recv(td, io_u); |
9cce02e8 | 399 | else |
414c2a3e | 400 | ret = fio_netio_splice_in(td, io_u); |
d4f12dd0 | 401 | } else |
7a6499da | 402 | ret = 0; /* must be a SYNC */ |
ed92ac0c | 403 | |
cec6b55d | 404 | if (ret != (int) io_u->xfer_buflen) { |
22819ec2 | 405 | if (ret >= 0) { |
cec6b55d JA |
406 | io_u->resid = io_u->xfer_buflen - ret; |
407 | io_u->error = 0; | |
36167d82 | 408 | return FIO_Q_COMPLETED; |
414c2a3e JA |
409 | } else { |
410 | int err = errno; | |
411 | ||
6f73a7f8 | 412 | if (ddir == DDIR_WRITE && err == EMSGSIZE) |
414c2a3e JA |
413 | return FIO_Q_BUSY; |
414 | ||
415 | io_u->error = err; | |
416 | } | |
ed92ac0c JA |
417 | } |
418 | ||
36167d82 | 419 | if (io_u->error) |
e1161c32 | 420 | td_verror(td, io_u->error, "xfer"); |
ed92ac0c | 421 | |
36167d82 | 422 | return FIO_Q_COMPLETED; |
ed92ac0c JA |
423 | } |
424 | ||
6f73a7f8 JA |
425 | static int fio_netio_queue(struct thread_data *td, struct io_u *io_u) |
426 | { | |
427 | struct netio_options *o = td->eo; | |
428 | int ret; | |
429 | ||
430 | fio_ro_check(td, io_u); | |
431 | ||
432 | ret = __fio_netio_queue(td, io_u, io_u->ddir); | |
433 | if (!o->pingpong || ret != FIO_Q_COMPLETED) | |
434 | return ret; | |
435 | ||
436 | /* | |
437 | * For ping-pong mode, receive or send reply as needed | |
438 | */ | |
439 | if (td_read(td) && io_u->ddir == DDIR_READ) | |
440 | ret = __fio_netio_queue(td, io_u, DDIR_WRITE); | |
441 | else if (td_write(td) && io_u->ddir == DDIR_WRITE) | |
442 | ret = __fio_netio_queue(td, io_u, DDIR_READ); | |
443 | ||
444 | return ret; | |
445 | } | |
446 | ||
b5af8293 | 447 | static int fio_netio_connect(struct thread_data *td, struct fio_file *f) |
ed92ac0c | 448 | { |
b5af8293 | 449 | struct netio_data *nd = td->io_ops->data; |
de890a1e | 450 | struct netio_options *o = td->eo; |
0fd666bf | 451 | int type, domain; |
414c2a3e | 452 | |
de890a1e | 453 | if (o->proto == FIO_TYPE_TCP) { |
0fd666bf | 454 | domain = AF_INET; |
414c2a3e | 455 | type = SOCK_STREAM; |
de890a1e | 456 | } else if (o->proto == FIO_TYPE_UDP) { |
0fd666bf | 457 | domain = AF_INET; |
414c2a3e | 458 | type = SOCK_DGRAM; |
de890a1e | 459 | } else if (o->proto == FIO_TYPE_UNIX) { |
0fd666bf JA |
460 | domain = AF_UNIX; |
461 | type = SOCK_STREAM; | |
462 | } else { | |
de890a1e | 463 | log_err("fio: bad network type %d\n", o->proto); |
0fd666bf JA |
464 | f->fd = -1; |
465 | return 1; | |
466 | } | |
ed92ac0c | 467 | |
0fd666bf | 468 | f->fd = socket(domain, type, 0); |
b5af8293 JA |
469 | if (f->fd < 0) { |
470 | td_verror(td, errno, "socket"); | |
471 | return 1; | |
ed92ac0c JA |
472 | } |
473 | ||
de890a1e | 474 | if (o->proto == FIO_TYPE_UDP) |
414c2a3e | 475 | return 0; |
de890a1e | 476 | else if (o->proto == FIO_TYPE_TCP) { |
67bf9823 | 477 | socklen_t len = sizeof(nd->addr); |
414c2a3e | 478 | |
0fd666bf JA |
479 | if (connect(f->fd, (struct sockaddr *) &nd->addr, len) < 0) { |
480 | td_verror(td, errno, "connect"); | |
b94cba47 | 481 | close(f->fd); |
0fd666bf JA |
482 | return 1; |
483 | } | |
484 | } else { | |
485 | struct sockaddr_un *addr = &nd->addr_un; | |
67bf9823 | 486 | socklen_t len; |
0fd666bf JA |
487 | |
488 | len = sizeof(addr->sun_family) + strlen(addr->sun_path) + 1; | |
489 | ||
490 | if (connect(f->fd, (struct sockaddr *) addr, len) < 0) { | |
491 | td_verror(td, errno, "connect"); | |
b94cba47 | 492 | close(f->fd); |
0fd666bf JA |
493 | return 1; |
494 | } | |
ed92ac0c JA |
495 | } |
496 | ||
497 | return 0; | |
ed92ac0c JA |
498 | } |
499 | ||
b5af8293 | 500 | static int fio_netio_accept(struct thread_data *td, struct fio_file *f) |
5fdd124a | 501 | { |
b5af8293 | 502 | struct netio_data *nd = td->io_ops->data; |
de890a1e | 503 | struct netio_options *o = td->eo; |
67bf9823 | 504 | socklen_t socklen = sizeof(nd->addr); |
859088d3 | 505 | int state; |
5fdd124a | 506 | |
de890a1e | 507 | if (o->proto == FIO_TYPE_UDP) { |
414c2a3e JA |
508 | f->fd = nd->listenfd; |
509 | return 0; | |
510 | } | |
511 | ||
859088d3 JA |
512 | state = td->runstate; |
513 | td_set_runstate(td, TD_SETTING_UP); | |
514 | ||
6d86144d | 515 | log_info("fio: waiting for connection\n"); |
5fdd124a | 516 | |
371d456c | 517 | if (poll_wait(td, nd->listenfd, POLLIN) < 0) |
859088d3 | 518 | goto err; |
0c09442b | 519 | |
371d456c JA |
520 | f->fd = accept(nd->listenfd, (struct sockaddr *) &nd->addr, &socklen); |
521 | if (f->fd < 0) { | |
522 | td_verror(td, errno, "accept"); | |
859088d3 | 523 | goto err; |
b5af8293 | 524 | } |
5fdd124a | 525 | |
0cae16ff | 526 | reset_all_stats(td); |
859088d3 | 527 | td_set_runstate(td, state); |
b5af8293 | 528 | return 0; |
859088d3 JA |
529 | err: |
530 | td_set_runstate(td, state); | |
531 | return 1; | |
b5af8293 JA |
532 | } |
533 | ||
664fb3bd JA |
534 | static void fio_netio_udp_close(struct thread_data *td, struct fio_file *f) |
535 | { | |
536 | struct netio_data *nd = td->io_ops->data; | |
537 | struct udp_close_msg msg; | |
62b38926 | 538 | struct sockaddr *to = (struct sockaddr *) &nd->addr; |
664fb3bd JA |
539 | int ret; |
540 | ||
b96d2430 | 541 | msg.magic = htonl(FIO_LINK_OPEN_CLOSE_MAGIC); |
664fb3bd JA |
542 | msg.cmd = htonl(FIO_LINK_CLOSE); |
543 | ||
1f81991e | 544 | ret = sendto(f->fd, (void *) &msg, sizeof(msg), MSG_WAITALL, to, |
664fb3bd JA |
545 | sizeof(nd->addr)); |
546 | if (ret < 0) | |
547 | td_verror(td, errno, "sendto udp link close"); | |
548 | } | |
549 | ||
550 | static int fio_netio_close_file(struct thread_data *td, struct fio_file *f) | |
551 | { | |
de890a1e | 552 | struct netio_options *o = td->eo; |
664fb3bd JA |
553 | |
554 | /* | |
555 | * If this is an UDP connection, notify the receiver that we are | |
556 | * closing down the link | |
557 | */ | |
de890a1e | 558 | if (o->proto == FIO_TYPE_UDP) |
664fb3bd JA |
559 | fio_netio_udp_close(td, f); |
560 | ||
561 | return generic_close_file(td, f); | |
562 | } | |
563 | ||
b96d2430 JA |
564 | static int fio_netio_udp_recv_open(struct thread_data *td, struct fio_file *f) |
565 | { | |
566 | struct netio_data *nd = td->io_ops->data; | |
567 | struct udp_close_msg msg; | |
568 | struct sockaddr *to = (struct sockaddr *) &nd->addr; | |
67bf9823 | 569 | socklen_t len = sizeof(nd->addr); |
b96d2430 JA |
570 | int ret; |
571 | ||
1f81991e | 572 | ret = recvfrom(f->fd, (void *) &msg, sizeof(msg), MSG_WAITALL, to, &len); |
b96d2430 JA |
573 | if (ret < 0) { |
574 | td_verror(td, errno, "sendto udp link open"); | |
575 | return ret; | |
576 | } | |
577 | ||
578 | if (ntohl(msg.magic) != FIO_LINK_OPEN_CLOSE_MAGIC || | |
579 | ntohl(msg.cmd) != FIO_LINK_OPEN) { | |
580 | log_err("fio: bad udp open magic %x/%x\n", ntohl(msg.magic), | |
581 | ntohl(msg.cmd)); | |
582 | return -1; | |
583 | } | |
584 | ||
585 | return 0; | |
586 | } | |
587 | ||
588 | static int fio_netio_udp_send_open(struct thread_data *td, struct fio_file *f) | |
589 | { | |
590 | struct netio_data *nd = td->io_ops->data; | |
591 | struct udp_close_msg msg; | |
592 | struct sockaddr *to = (struct sockaddr *) &nd->addr; | |
593 | int ret; | |
594 | ||
595 | msg.magic = htonl(FIO_LINK_OPEN_CLOSE_MAGIC); | |
596 | msg.cmd = htonl(FIO_LINK_OPEN); | |
597 | ||
1f81991e | 598 | ret = sendto(f->fd, (void *) &msg, sizeof(msg), MSG_WAITALL, to, |
b96d2430 JA |
599 | sizeof(nd->addr)); |
600 | if (ret < 0) { | |
601 | td_verror(td, errno, "sendto udp link open"); | |
602 | return ret; | |
603 | } | |
604 | ||
605 | return 0; | |
606 | } | |
607 | ||
608 | static int fio_netio_open_file(struct thread_data *td, struct fio_file *f) | |
609 | { | |
610 | int ret; | |
611 | struct netio_options *o = td->eo; | |
612 | ||
613 | if (o->listen) | |
614 | ret = fio_netio_accept(td, f); | |
615 | else | |
616 | ret = fio_netio_connect(td, f); | |
617 | ||
618 | if (ret) { | |
619 | f->fd = -1; | |
620 | return ret; | |
621 | } | |
622 | ||
623 | if (o->proto == FIO_TYPE_UDP) { | |
624 | if (td_write(td)) | |
625 | ret = fio_netio_udp_send_open(td, f); | |
626 | else { | |
627 | int state; | |
628 | ||
629 | state = td->runstate; | |
630 | td_set_runstate(td, TD_SETTING_UP); | |
631 | ret = fio_netio_udp_recv_open(td, f); | |
632 | td_set_runstate(td, state); | |
633 | } | |
634 | } | |
635 | ||
636 | if (ret) | |
637 | fio_netio_close_file(td, f); | |
638 | ||
639 | return ret; | |
640 | } | |
641 | ||
0fd666bf JA |
642 | static int fio_netio_setup_connect_inet(struct thread_data *td, |
643 | const char *host, unsigned short port) | |
b5af8293 JA |
644 | { |
645 | struct netio_data *nd = td->io_ops->data; | |
646 | ||
166dce4b JA |
647 | if (!host) { |
648 | log_err("fio: connect with no host to connect to.\n"); | |
649 | if (td_read(td)) | |
650 | log_err("fio: did you forget to set 'listen'?\n"); | |
651 | ||
652 | td_verror(td, EINVAL, "no hostname= set"); | |
653 | return 1; | |
654 | } | |
655 | ||
b5af8293 JA |
656 | nd->addr.sin_family = AF_INET; |
657 | nd->addr.sin_port = htons(port); | |
658 | ||
659 | if (inet_aton(host, &nd->addr.sin_addr) != 1) { | |
660 | struct hostent *hent; | |
661 | ||
662 | hent = gethostbyname(host); | |
663 | if (!hent) { | |
664 | td_verror(td, errno, "gethostbyname"); | |
665 | return 1; | |
5fdd124a | 666 | } |
b5af8293 JA |
667 | |
668 | memcpy(&nd->addr.sin_addr, hent->h_addr, 4); | |
5fdd124a JA |
669 | } |
670 | ||
671 | return 0; | |
672 | } | |
673 | ||
0fd666bf JA |
674 | static int fio_netio_setup_connect_unix(struct thread_data *td, |
675 | const char *path) | |
676 | { | |
677 | struct netio_data *nd = td->io_ops->data; | |
678 | struct sockaddr_un *soun = &nd->addr_un; | |
679 | ||
680 | soun->sun_family = AF_UNIX; | |
681 | strcpy(soun->sun_path, path); | |
682 | return 0; | |
683 | } | |
684 | ||
de890a1e | 685 | static int fio_netio_setup_connect(struct thread_data *td) |
0fd666bf | 686 | { |
de890a1e | 687 | struct netio_options *o = td->eo; |
0fd666bf | 688 | |
de890a1e SL |
689 | if (o->proto == FIO_TYPE_UDP || o->proto == FIO_TYPE_TCP) |
690 | return fio_netio_setup_connect_inet(td, td->o.filename,o->port); | |
0fd666bf | 691 | else |
de890a1e | 692 | return fio_netio_setup_connect_unix(td, td->o.filename); |
0fd666bf JA |
693 | } |
694 | ||
695 | static int fio_netio_setup_listen_unix(struct thread_data *td, const char *path) | |
696 | { | |
697 | struct netio_data *nd = td->io_ops->data; | |
698 | struct sockaddr_un *addr = &nd->addr_un; | |
699 | mode_t mode; | |
700 | int len, fd; | |
701 | ||
702 | fd = socket(AF_UNIX, SOCK_STREAM, 0); | |
703 | if (fd < 0) { | |
704 | log_err("fio: socket: %s\n", strerror(errno)); | |
705 | return -1; | |
706 | } | |
707 | ||
708 | mode = umask(000); | |
709 | ||
710 | memset(addr, 0, sizeof(*addr)); | |
711 | addr->sun_family = AF_UNIX; | |
712 | strcpy(addr->sun_path, path); | |
713 | unlink(path); | |
714 | ||
715 | len = sizeof(addr->sun_family) + strlen(path) + 1; | |
716 | ||
717 | if (bind(fd, (struct sockaddr *) addr, len) < 0) { | |
718 | log_err("fio: bind: %s\n", strerror(errno)); | |
b94cba47 | 719 | close(fd); |
0fd666bf JA |
720 | return -1; |
721 | } | |
722 | ||
723 | umask(mode); | |
724 | nd->listenfd = fd; | |
725 | return 0; | |
726 | } | |
727 | ||
728 | static int fio_netio_setup_listen_inet(struct thread_data *td, short port) | |
ed92ac0c | 729 | { |
b5af8293 | 730 | struct netio_data *nd = td->io_ops->data; |
de890a1e | 731 | struct netio_options *o = td->eo; |
414c2a3e | 732 | int fd, opt, type; |
ed92ac0c | 733 | |
de890a1e | 734 | if (o->proto == FIO_TYPE_TCP) |
414c2a3e JA |
735 | type = SOCK_STREAM; |
736 | else | |
737 | type = SOCK_DGRAM; | |
738 | ||
0fd666bf | 739 | fd = socket(AF_INET, type, 0); |
ed92ac0c | 740 | if (fd < 0) { |
e1161c32 | 741 | td_verror(td, errno, "socket"); |
ed92ac0c JA |
742 | return 1; |
743 | } | |
744 | ||
745 | opt = 1; | |
1f81991e | 746 | if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (void*)&opt, sizeof(opt)) < 0) { |
e1161c32 | 747 | td_verror(td, errno, "setsockopt"); |
ed92ac0c JA |
748 | return 1; |
749 | } | |
6bedbfaf JA |
750 | #ifdef SO_REUSEPORT |
751 | if (setsockopt(fd, SOL_SOCKET, SO_REUSEPORT, &opt, sizeof(opt)) < 0) { | |
e1161c32 | 752 | td_verror(td, errno, "setsockopt"); |
6bedbfaf JA |
753 | return 1; |
754 | } | |
755 | #endif | |
ed92ac0c | 756 | |
b5af8293 JA |
757 | nd->addr.sin_family = AF_INET; |
758 | nd->addr.sin_addr.s_addr = htonl(INADDR_ANY); | |
759 | nd->addr.sin_port = htons(port); | |
ed92ac0c | 760 | |
b5af8293 | 761 | if (bind(fd, (struct sockaddr *) &nd->addr, sizeof(nd->addr)) < 0) { |
e1161c32 | 762 | td_verror(td, errno, "bind"); |
ed92ac0c JA |
763 | return 1; |
764 | } | |
0fd666bf JA |
765 | |
766 | nd->listenfd = fd; | |
767 | return 0; | |
768 | } | |
769 | ||
de890a1e | 770 | static int fio_netio_setup_listen(struct thread_data *td) |
0fd666bf JA |
771 | { |
772 | struct netio_data *nd = td->io_ops->data; | |
de890a1e | 773 | struct netio_options *o = td->eo; |
0fd666bf JA |
774 | int ret; |
775 | ||
de890a1e SL |
776 | if (o->proto == FIO_TYPE_UDP || o->proto == FIO_TYPE_TCP) |
777 | ret = fio_netio_setup_listen_inet(td, o->port); | |
0fd666bf | 778 | else |
de890a1e | 779 | ret = fio_netio_setup_listen_unix(td, td->o.filename); |
0fd666bf JA |
780 | |
781 | if (ret) | |
782 | return ret; | |
de890a1e | 783 | if (o->proto == FIO_TYPE_UDP) |
0fd666bf JA |
784 | return 0; |
785 | ||
786 | if (listen(nd->listenfd, 10) < 0) { | |
e1161c32 | 787 | td_verror(td, errno, "listen"); |
0fd666bf | 788 | nd->listenfd = -1; |
ed92ac0c JA |
789 | return 1; |
790 | } | |
791 | ||
b5af8293 | 792 | return 0; |
ed92ac0c JA |
793 | } |
794 | ||
9bec88e1 | 795 | static int fio_netio_init(struct thread_data *td) |
ed92ac0c | 796 | { |
de890a1e | 797 | struct netio_options *o = td->eo; |
af52b345 | 798 | int ret; |
ed92ac0c | 799 | |
3f457bea BC |
800 | #ifdef WIN32 |
801 | WSADATA wsd; | |
802 | WSAStartup(MAKEWORD(2,2), &wsd); | |
803 | #endif | |
804 | ||
16d55aae JA |
805 | if (td_random(td)) { |
806 | log_err("fio: network IO can't be random\n"); | |
807 | return 1; | |
808 | } | |
ed92ac0c | 809 | |
de890a1e SL |
810 | if (o->proto == FIO_TYPE_UNIX && o->port) { |
811 | log_err("fio: network IO port not valid with unix socket\n"); | |
812 | return 1; | |
813 | } else if (o->proto != FIO_TYPE_UNIX && !o->port) { | |
814 | log_err("fio: network IO requires port for tcp or udp\n"); | |
815 | return 1; | |
816 | } | |
ed92ac0c | 817 | |
de890a1e SL |
818 | if (o->proto != FIO_TYPE_TCP) { |
819 | if (o->listen) { | |
9b986065 JA |
820 | log_err("fio: listen only valid for TCP proto IO\n"); |
821 | return 1; | |
de890a1e SL |
822 | } |
823 | if (td_rw(td)) { | |
9b986065 | 824 | log_err("fio: datagram network connections must be" |
de890a1e | 825 | " read OR write\n"); |
9b986065 JA |
826 | return 1; |
827 | } | |
828 | if (o->proto == FIO_TYPE_UNIX && !td->o.filename) { | |
829 | log_err("fio: UNIX sockets need host/filename\n"); | |
830 | return 1; | |
de890a1e SL |
831 | } |
832 | o->listen = td_read(td); | |
833 | } | |
443662ef | 834 | |
de890a1e SL |
835 | if (o->proto != FIO_TYPE_UNIX && o->listen && td->o.filename) { |
836 | log_err("fio: hostname not valid for inbound network IO\n"); | |
837 | return 1; | |
414c2a3e | 838 | } |
0fd666bf | 839 | |
de890a1e SL |
840 | if (o->listen) |
841 | ret = fio_netio_setup_listen(td); | |
0fd666bf | 842 | else |
de890a1e | 843 | ret = fio_netio_setup_connect(td); |
ed92ac0c | 844 | |
7bb48f84 | 845 | return ret; |
ed92ac0c JA |
846 | } |
847 | ||
b5af8293 | 848 | static void fio_netio_cleanup(struct thread_data *td) |
9bec88e1 | 849 | { |
b5af8293 JA |
850 | struct netio_data *nd = td->io_ops->data; |
851 | ||
852 | if (nd) { | |
64b24cd8 JA |
853 | if (nd->listenfd != -1) |
854 | close(nd->listenfd); | |
855 | if (nd->pipes[0] != -1) | |
856 | close(nd->pipes[0]); | |
857 | if (nd->pipes[1] != -1) | |
858 | close(nd->pipes[1]); | |
859 | ||
b5af8293 | 860 | free(nd); |
b5af8293 JA |
861 | } |
862 | } | |
863 | ||
864 | static int fio_netio_setup(struct thread_data *td) | |
865 | { | |
7bb48f84 | 866 | struct netio_data *nd; |
7bb48f84 | 867 | |
de890a1e SL |
868 | if (!td->files_index) { |
869 | add_file(td, td->o.filename ?: "net"); | |
870 | td->o.nr_files = td->o.nr_files ?: 1; | |
871 | } | |
872 | ||
7bb48f84 JA |
873 | if (!td->io_ops->data) { |
874 | nd = malloc(sizeof(*nd));; | |
875 | ||
876 | memset(nd, 0, sizeof(*nd)); | |
877 | nd->listenfd = -1; | |
64b24cd8 | 878 | nd->pipes[0] = nd->pipes[1] = -1; |
7bb48f84 | 879 | td->io_ops->data = nd; |
7bb48f84 | 880 | } |
b5af8293 | 881 | |
9bec88e1 JA |
882 | return 0; |
883 | } | |
884 | ||
36d80bc7 JA |
885 | static void fio_netio_terminate(struct thread_data *td) |
886 | { | |
887 | kill(td->pid, SIGUSR2); | |
888 | } | |
889 | ||
67bf9823 | 890 | #ifdef CONFIG_LINUX_SPLICE |
9cce02e8 JA |
891 | static int fio_netio_setup_splice(struct thread_data *td) |
892 | { | |
893 | struct netio_data *nd; | |
894 | ||
895 | fio_netio_setup(td); | |
896 | ||
897 | nd = td->io_ops->data; | |
898 | if (nd) { | |
899 | if (pipe(nd->pipes) < 0) | |
900 | return 1; | |
901 | ||
902 | nd->use_splice = 1; | |
903 | return 0; | |
904 | } | |
905 | ||
906 | return 1; | |
907 | } | |
908 | ||
5921e80c | 909 | static struct ioengine_ops ioengine_splice = { |
de890a1e SL |
910 | .name = "netsplice", |
911 | .version = FIO_IOOPS_VERSION, | |
912 | .prep = fio_netio_prep, | |
913 | .queue = fio_netio_queue, | |
914 | .setup = fio_netio_setup_splice, | |
915 | .init = fio_netio_init, | |
916 | .cleanup = fio_netio_cleanup, | |
917 | .open_file = fio_netio_open_file, | |
36d80bc7 JA |
918 | .close_file = fio_netio_close_file, |
919 | .terminate = fio_netio_terminate, | |
de890a1e SL |
920 | .options = options, |
921 | .option_struct_size = sizeof(struct netio_options), | |
922 | .flags = FIO_SYNCIO | FIO_DISKLESSIO | FIO_UNIDIR | | |
36d80bc7 | 923 | FIO_PIPEIO, |
ed92ac0c | 924 | }; |
5921e80c | 925 | #endif |
ed92ac0c | 926 | |
5921e80c | 927 | static struct ioengine_ops ioengine_rw = { |
de890a1e SL |
928 | .name = "net", |
929 | .version = FIO_IOOPS_VERSION, | |
930 | .prep = fio_netio_prep, | |
931 | .queue = fio_netio_queue, | |
932 | .setup = fio_netio_setup, | |
933 | .init = fio_netio_init, | |
934 | .cleanup = fio_netio_cleanup, | |
935 | .open_file = fio_netio_open_file, | |
936 | .close_file = fio_netio_close_file, | |
36d80bc7 | 937 | .terminate = fio_netio_terminate, |
de890a1e SL |
938 | .options = options, |
939 | .option_struct_size = sizeof(struct netio_options), | |
940 | .flags = FIO_SYNCIO | FIO_DISKLESSIO | FIO_UNIDIR | | |
36d80bc7 | 941 | FIO_PIPEIO, |
9cce02e8 JA |
942 | }; |
943 | ||
de890a1e SL |
944 | static int str_hostname_cb(void *data, const char *input) |
945 | { | |
946 | struct netio_options *o = data; | |
947 | ||
948 | if (o->td->o.filename) | |
949 | free(o->td->o.filename); | |
950 | o->td->o.filename = strdup(input); | |
951 | return 0; | |
952 | } | |
953 | ||
ed92ac0c JA |
954 | static void fio_init fio_netio_register(void) |
955 | { | |
9cce02e8 | 956 | register_ioengine(&ioengine_rw); |
67bf9823 | 957 | #ifdef CONFIG_LINUX_SPLICE |
9cce02e8 | 958 | register_ioengine(&ioengine_splice); |
5921e80c | 959 | #endif |
ed92ac0c JA |
960 | } |
961 | ||
962 | static void fio_exit fio_netio_unregister(void) | |
963 | { | |
9cce02e8 | 964 | unregister_ioengine(&ioengine_rw); |
67bf9823 | 965 | #ifdef CONFIG_LINUX_SPLICE |
9cce02e8 | 966 | unregister_ioengine(&ioengine_splice); |
5921e80c | 967 | #endif |
ed92ac0c | 968 | } |