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> | |
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" | |
ed92ac0c | 24 | |
b5af8293 JA |
25 | struct netio_data { |
26 | int listenfd; | |
9cce02e8 JA |
27 | int use_splice; |
28 | int pipes[2]; | |
b5af8293 | 29 | struct sockaddr_in addr; |
0fd666bf | 30 | struct sockaddr_un addr_un; |
b5af8293 | 31 | }; |
ed92ac0c | 32 | |
de890a1e SL |
33 | struct netio_options { |
34 | struct thread_data *td; | |
35 | unsigned int port; | |
36 | unsigned int proto; | |
37 | unsigned int listen; | |
6f73a7f8 | 38 | unsigned int pingpong; |
70a7878c | 39 | unsigned int nodelay; |
de890a1e SL |
40 | }; |
41 | ||
664fb3bd JA |
42 | struct udp_close_msg { |
43 | uint32_t magic; | |
44 | uint32_t cmd; | |
45 | }; | |
46 | ||
47 | enum { | |
48 | FIO_LINK_CLOSE = 0x89, | |
b96d2430 JA |
49 | FIO_LINK_OPEN_CLOSE_MAGIC = 0x6c696e6b, |
50 | FIO_LINK_OPEN = 0x98, | |
0fd666bf JA |
51 | |
52 | FIO_TYPE_TCP = 1, | |
53 | FIO_TYPE_UDP = 2, | |
54 | FIO_TYPE_UNIX = 3, | |
664fb3bd JA |
55 | }; |
56 | ||
de890a1e SL |
57 | static int str_hostname_cb(void *data, const char *input); |
58 | static struct fio_option options[] = { | |
59 | { | |
60 | .name = "hostname", | |
e8b0e958 | 61 | .lname = "net engine hostname", |
de890a1e SL |
62 | .type = FIO_OPT_STR_STORE, |
63 | .cb = str_hostname_cb, | |
64 | .help = "Hostname for net IO engine", | |
e90a0adf JA |
65 | .category = FIO_OPT_C_ENGINE, |
66 | .group = FIO_OPT_G_NETIO, | |
de890a1e SL |
67 | }, |
68 | { | |
69 | .name = "port", | |
e8b0e958 | 70 | .lname = "net engine port", |
de890a1e SL |
71 | .type = FIO_OPT_INT, |
72 | .off1 = offsetof(struct netio_options, port), | |
73 | .minval = 1, | |
74 | .maxval = 65535, | |
75 | .help = "Port to use for TCP or UDP net connections", | |
e90a0adf JA |
76 | .category = FIO_OPT_C_ENGINE, |
77 | .group = FIO_OPT_G_NETIO, | |
de890a1e SL |
78 | }, |
79 | { | |
80 | .name = "protocol", | |
e8b0e958 | 81 | .lname = "net engine protocol", |
de890a1e SL |
82 | .alias = "proto", |
83 | .type = FIO_OPT_STR, | |
84 | .off1 = offsetof(struct netio_options, proto), | |
85 | .help = "Network protocol to use", | |
86 | .def = "tcp", | |
87 | .posval = { | |
88 | { .ival = "tcp", | |
89 | .oval = FIO_TYPE_TCP, | |
90 | .help = "Transmission Control Protocol", | |
91 | }, | |
92 | { .ival = "udp", | |
93 | .oval = FIO_TYPE_UDP, | |
f5cc3d0e | 94 | .help = "User Datagram Protocol", |
de890a1e SL |
95 | }, |
96 | { .ival = "unix", | |
97 | .oval = FIO_TYPE_UNIX, | |
98 | .help = "UNIX domain socket", | |
99 | }, | |
100 | }, | |
e90a0adf JA |
101 | .category = FIO_OPT_C_ENGINE, |
102 | .group = FIO_OPT_G_NETIO, | |
de890a1e | 103 | }, |
1eafa37a | 104 | #ifdef CONFIG_TCP_NODELAY |
70a7878c SN |
105 | { |
106 | .name = "nodelay", | |
107 | .type = FIO_OPT_BOOL, | |
108 | .off1 = offsetof(struct netio_options, nodelay), | |
109 | .help = "Use TCP_NODELAY on TCP connections", | |
e90a0adf JA |
110 | .category = FIO_OPT_C_ENGINE, |
111 | .group = FIO_OPT_G_NETIO, | |
70a7878c | 112 | }, |
1eafa37a | 113 | #endif |
de890a1e SL |
114 | { |
115 | .name = "listen", | |
e8b0e958 | 116 | .lname = "net engine listen", |
de890a1e SL |
117 | .type = FIO_OPT_STR_SET, |
118 | .off1 = offsetof(struct netio_options, listen), | |
119 | .help = "Listen for incoming TCP connections", | |
e90a0adf JA |
120 | .category = FIO_OPT_C_ENGINE, |
121 | .group = FIO_OPT_G_NETIO, | |
de890a1e | 122 | }, |
6f73a7f8 JA |
123 | { |
124 | .name = "pingpong", | |
125 | .type = FIO_OPT_STR_SET, | |
126 | .off1 = offsetof(struct netio_options, pingpong), | |
127 | .help = "Ping-pong IO requests", | |
e90a0adf JA |
128 | .category = FIO_OPT_C_ENGINE, |
129 | .group = FIO_OPT_G_NETIO, | |
6f73a7f8 | 130 | }, |
de890a1e SL |
131 | { |
132 | .name = NULL, | |
133 | }, | |
134 | }; | |
135 | ||
371d456c JA |
136 | /* |
137 | * Return -1 for error and 'nr events' for a positive number | |
138 | * of events | |
139 | */ | |
140 | static int poll_wait(struct thread_data *td, int fd, short events) | |
141 | { | |
142 | struct pollfd pfd; | |
143 | int ret; | |
144 | ||
145 | while (!td->terminate) { | |
146 | pfd.fd = fd; | |
147 | pfd.events = events; | |
148 | ret = poll(&pfd, 1, -1); | |
149 | if (ret < 0) { | |
150 | if (errno == EINTR) | |
d5b388a5 | 151 | break; |
371d456c JA |
152 | |
153 | td_verror(td, errno, "poll"); | |
154 | return -1; | |
155 | } else if (!ret) | |
156 | continue; | |
157 | ||
158 | break; | |
159 | } | |
160 | ||
161 | if (pfd.revents & events) | |
162 | return 1; | |
371d456c JA |
163 | |
164 | return -1; | |
165 | } | |
166 | ||
b511c9aa SB |
167 | static int fio_netio_is_multicast(const char *mcaddr) |
168 | { | |
169 | in_addr_t addr = inet_network(mcaddr); | |
170 | if (addr == -1) | |
171 | return 0; | |
172 | ||
173 | if (inet_network("224.0.0.0") <= addr && | |
174 | inet_network("239.255.255.255") >= addr) | |
175 | return 1; | |
176 | ||
177 | return 0; | |
178 | } | |
179 | ||
180 | ||
ed92ac0c JA |
181 | static int fio_netio_prep(struct thread_data *td, struct io_u *io_u) |
182 | { | |
de890a1e | 183 | struct netio_options *o = td->eo; |
ed92ac0c | 184 | |
7a6499da JA |
185 | /* |
186 | * Make sure we don't see spurious reads to a receiver, and vice versa | |
187 | */ | |
de890a1e SL |
188 | if (o->proto == FIO_TYPE_TCP) |
189 | return 0; | |
190 | ||
191 | if ((o->listen && io_u->ddir == DDIR_WRITE) || | |
192 | (!o->listen && io_u->ddir == DDIR_READ)) { | |
e1161c32 | 193 | td_verror(td, EINVAL, "bad direction"); |
7a6499da | 194 | return 1; |
ed92ac0c | 195 | } |
3f457bea | 196 | |
f85ac25a | 197 | return 0; |
ed92ac0c JA |
198 | } |
199 | ||
67bf9823 | 200 | #ifdef CONFIG_LINUX_SPLICE |
cd963e18 | 201 | static int splice_io_u(int fdin, int fdout, unsigned int len) |
ed92ac0c | 202 | { |
9cce02e8 | 203 | int bytes = 0; |
7a6499da | 204 | |
9cce02e8 | 205 | while (len) { |
cd963e18 | 206 | int ret = splice(fdin, NULL, fdout, NULL, len, 0); |
9cce02e8 JA |
207 | |
208 | if (ret < 0) { | |
209 | if (!bytes) | |
210 | bytes = ret; | |
211 | ||
212 | break; | |
213 | } else if (!ret) | |
214 | break; | |
215 | ||
216 | bytes += ret; | |
f657a2fb | 217 | len -= ret; |
9cce02e8 JA |
218 | } |
219 | ||
220 | return bytes; | |
221 | } | |
222 | ||
223 | /* | |
cd963e18 | 224 | * Receive bytes from a socket and fill them into the internal pipe |
9cce02e8 | 225 | */ |
cd963e18 | 226 | static int splice_in(struct thread_data *td, struct io_u *io_u) |
9cce02e8 JA |
227 | { |
228 | struct netio_data *nd = td->io_ops->data; | |
9cce02e8 | 229 | |
cd963e18 | 230 | return splice_io_u(io_u->file->fd, nd->pipes[1], io_u->xfer_buflen); |
9cce02e8 JA |
231 | } |
232 | ||
233 | /* | |
cd963e18 | 234 | * Transmit 'len' bytes from the internal pipe |
9cce02e8 | 235 | */ |
cd963e18 JA |
236 | static int splice_out(struct thread_data *td, struct io_u *io_u, |
237 | unsigned int len) | |
9cce02e8 JA |
238 | { |
239 | struct netio_data *nd = td->io_ops->data; | |
cd963e18 JA |
240 | |
241 | return splice_io_u(nd->pipes[0], io_u->file->fd, len); | |
242 | } | |
243 | ||
244 | static int vmsplice_io_u(struct io_u *io_u, int fd, unsigned int len) | |
245 | { | |
9cce02e8 JA |
246 | struct iovec iov = { |
247 | .iov_base = io_u->xfer_buf, | |
248 | .iov_len = len, | |
249 | }; | |
250 | int bytes = 0; | |
251 | ||
252 | while (iov.iov_len) { | |
cd963e18 | 253 | int ret = vmsplice(fd, &iov, 1, SPLICE_F_MOVE); |
9cce02e8 JA |
254 | |
255 | if (ret < 0) { | |
256 | if (!bytes) | |
257 | bytes = ret; | |
258 | break; | |
259 | } else if (!ret) | |
260 | break; | |
261 | ||
262 | iov.iov_len -= ret; | |
cd963e18 | 263 | iov.iov_base += ret; |
f657a2fb | 264 | bytes += ret; |
9cce02e8 JA |
265 | } |
266 | ||
267 | return bytes; | |
cd963e18 | 268 | |
9cce02e8 JA |
269 | } |
270 | ||
271 | /* | |
cd963e18 | 272 | * vmsplice() pipe to io_u buffer |
9cce02e8 | 273 | */ |
cd963e18 JA |
274 | static int vmsplice_io_u_out(struct thread_data *td, struct io_u *io_u, |
275 | unsigned int len) | |
9cce02e8 JA |
276 | { |
277 | struct netio_data *nd = td->io_ops->data; | |
9cce02e8 | 278 | |
cd963e18 JA |
279 | return vmsplice_io_u(io_u, nd->pipes[0], len); |
280 | } | |
9cce02e8 | 281 | |
cd963e18 JA |
282 | /* |
283 | * vmsplice() io_u to pipe | |
284 | */ | |
285 | static int vmsplice_io_u_in(struct thread_data *td, struct io_u *io_u) | |
286 | { | |
287 | struct netio_data *nd = td->io_ops->data; | |
ed92ac0c | 288 | |
cd963e18 | 289 | return vmsplice_io_u(io_u, nd->pipes[1], io_u->xfer_buflen); |
9cce02e8 JA |
290 | } |
291 | ||
cd963e18 JA |
292 | /* |
293 | * splice receive - transfer socket data into a pipe using splice, then map | |
294 | * that pipe data into the io_u using vmsplice. | |
295 | */ | |
9cce02e8 JA |
296 | static int fio_netio_splice_in(struct thread_data *td, struct io_u *io_u) |
297 | { | |
298 | int ret; | |
299 | ||
300 | ret = splice_in(td, io_u); | |
cd963e18 JA |
301 | if (ret > 0) |
302 | return vmsplice_io_u_out(td, io_u, ret); | |
9cce02e8 | 303 | |
cd963e18 | 304 | return ret; |
9cce02e8 JA |
305 | } |
306 | ||
cd963e18 JA |
307 | /* |
308 | * splice transmit - map data from the io_u into a pipe by using vmsplice, | |
309 | * then transfer that pipe to a socket using splice. | |
310 | */ | |
9cce02e8 JA |
311 | static int fio_netio_splice_out(struct thread_data *td, struct io_u *io_u) |
312 | { | |
313 | int ret; | |
314 | ||
315 | ret = vmsplice_io_u_in(td, io_u); | |
cd963e18 JA |
316 | if (ret > 0) |
317 | return splice_out(td, io_u, ret); | |
9cce02e8 | 318 | |
cd963e18 | 319 | return ret; |
9cce02e8 | 320 | } |
5921e80c JA |
321 | #else |
322 | static int fio_netio_splice_in(struct thread_data *td, struct io_u *io_u) | |
323 | { | |
af8771b9 | 324 | errno = EOPNOTSUPP; |
5921e80c JA |
325 | return -1; |
326 | } | |
327 | ||
328 | static int fio_netio_splice_out(struct thread_data *td, struct io_u *io_u) | |
329 | { | |
af8771b9 | 330 | errno = EOPNOTSUPP; |
5921e80c JA |
331 | return -1; |
332 | } | |
333 | #endif | |
9cce02e8 JA |
334 | |
335 | static int fio_netio_send(struct thread_data *td, struct io_u *io_u) | |
336 | { | |
414c2a3e | 337 | struct netio_data *nd = td->io_ops->data; |
de890a1e | 338 | struct netio_options *o = td->eo; |
6f73a7f8 | 339 | int ret, flags = 0; |
371d456c | 340 | |
664fb3bd | 341 | do { |
de890a1e | 342 | if (o->proto == FIO_TYPE_UDP) { |
62b38926 JA |
343 | struct sockaddr *to = (struct sockaddr *) &nd->addr; |
344 | ||
664fb3bd | 345 | ret = sendto(io_u->file->fd, io_u->xfer_buf, |
62b38926 JA |
346 | io_u->xfer_buflen, flags, to, |
347 | sizeof(*to)); | |
664fb3bd JA |
348 | } else { |
349 | /* | |
350 | * if we are going to write more, set MSG_MORE | |
351 | */ | |
5921e80c | 352 | #ifdef MSG_MORE |
6f73a7f8 JA |
353 | if ((td->this_io_bytes[DDIR_WRITE] + io_u->xfer_buflen < |
354 | td->o.size) && !o->pingpong) | |
664fb3bd | 355 | flags |= MSG_MORE; |
5921e80c | 356 | #endif |
664fb3bd JA |
357 | ret = send(io_u->file->fd, io_u->xfer_buf, |
358 | io_u->xfer_buflen, flags); | |
359 | } | |
360 | if (ret > 0) | |
361 | break; | |
9cce02e8 | 362 | |
664fb3bd JA |
363 | ret = poll_wait(td, io_u->file->fd, POLLOUT); |
364 | if (ret <= 0) | |
365 | break; | |
664fb3bd JA |
366 | } while (1); |
367 | ||
368 | return ret; | |
369 | } | |
370 | ||
371 | static int is_udp_close(struct io_u *io_u, int len) | |
372 | { | |
373 | struct udp_close_msg *msg; | |
374 | ||
375 | if (len != sizeof(struct udp_close_msg)) | |
376 | return 0; | |
377 | ||
378 | msg = io_u->xfer_buf; | |
b96d2430 | 379 | if (ntohl(msg->magic) != FIO_LINK_OPEN_CLOSE_MAGIC) |
664fb3bd JA |
380 | return 0; |
381 | if (ntohl(msg->cmd) != FIO_LINK_CLOSE) | |
382 | return 0; | |
383 | ||
384 | return 1; | |
9cce02e8 JA |
385 | } |
386 | ||
414c2a3e | 387 | static int fio_netio_recv(struct thread_data *td, struct io_u *io_u) |
9cce02e8 | 388 | { |
414c2a3e | 389 | struct netio_data *nd = td->io_ops->data; |
de890a1e | 390 | struct netio_options *o = td->eo; |
6f73a7f8 | 391 | int ret, flags = 0; |
664fb3bd JA |
392 | |
393 | do { | |
de890a1e | 394 | if (o->proto == FIO_TYPE_UDP) { |
b511c9aa SB |
395 | socklen_t l; |
396 | socklen_t *len = &l; | |
397 | struct sockaddr *from; | |
398 | ||
399 | if (o->listen) { | |
400 | from = (struct sockaddr *) &nd->addr; | |
401 | *len = sizeof(nd->addr); | |
402 | } else { | |
403 | from = NULL; | |
404 | len = NULL; | |
405 | } | |
664fb3bd JA |
406 | |
407 | ret = recvfrom(io_u->file->fd, io_u->xfer_buf, | |
b511c9aa | 408 | io_u->xfer_buflen, flags, from, len); |
664fb3bd JA |
409 | if (is_udp_close(io_u, ret)) { |
410 | td->done = 1; | |
411 | return 0; | |
412 | } | |
413 | } else { | |
414 | ret = recv(io_u->file->fd, io_u->xfer_buf, | |
415 | io_u->xfer_buflen, flags); | |
416 | } | |
417 | if (ret > 0) | |
418 | break; | |
7d988f68 JA |
419 | else if (!ret && (flags & MSG_WAITALL)) |
420 | break; | |
9cce02e8 | 421 | |
664fb3bd JA |
422 | ret = poll_wait(td, io_u->file->fd, POLLIN); |
423 | if (ret <= 0) | |
424 | break; | |
664fb3bd JA |
425 | flags |= MSG_WAITALL; |
426 | } while (1); | |
414c2a3e | 427 | |
664fb3bd | 428 | return ret; |
9cce02e8 JA |
429 | } |
430 | ||
6f73a7f8 JA |
431 | static int __fio_netio_queue(struct thread_data *td, struct io_u *io_u, |
432 | enum fio_ddir ddir) | |
9cce02e8 JA |
433 | { |
434 | struct netio_data *nd = td->io_ops->data; | |
de890a1e | 435 | struct netio_options *o = td->eo; |
9cce02e8 JA |
436 | int ret; |
437 | ||
6f73a7f8 | 438 | if (ddir == DDIR_WRITE) { |
de890a1e SL |
439 | if (!nd->use_splice || o->proto == FIO_TYPE_UDP || |
440 | o->proto == FIO_TYPE_UNIX) | |
9cce02e8 | 441 | ret = fio_netio_send(td, io_u); |
414c2a3e JA |
442 | else |
443 | ret = fio_netio_splice_out(td, io_u); | |
6f73a7f8 | 444 | } else if (ddir == DDIR_READ) { |
de890a1e SL |
445 | if (!nd->use_splice || o->proto == FIO_TYPE_UDP || |
446 | o->proto == FIO_TYPE_UNIX) | |
414c2a3e | 447 | ret = fio_netio_recv(td, io_u); |
9cce02e8 | 448 | else |
414c2a3e | 449 | ret = fio_netio_splice_in(td, io_u); |
d4f12dd0 | 450 | } else |
7a6499da | 451 | ret = 0; /* must be a SYNC */ |
ed92ac0c | 452 | |
cec6b55d | 453 | if (ret != (int) io_u->xfer_buflen) { |
22819ec2 | 454 | if (ret >= 0) { |
cec6b55d JA |
455 | io_u->resid = io_u->xfer_buflen - ret; |
456 | io_u->error = 0; | |
36167d82 | 457 | return FIO_Q_COMPLETED; |
414c2a3e JA |
458 | } else { |
459 | int err = errno; | |
460 | ||
6f73a7f8 | 461 | if (ddir == DDIR_WRITE && err == EMSGSIZE) |
414c2a3e JA |
462 | return FIO_Q_BUSY; |
463 | ||
464 | io_u->error = err; | |
465 | } | |
ed92ac0c JA |
466 | } |
467 | ||
36167d82 | 468 | if (io_u->error) |
e1161c32 | 469 | td_verror(td, io_u->error, "xfer"); |
ed92ac0c | 470 | |
36167d82 | 471 | return FIO_Q_COMPLETED; |
ed92ac0c JA |
472 | } |
473 | ||
6f73a7f8 JA |
474 | static int fio_netio_queue(struct thread_data *td, struct io_u *io_u) |
475 | { | |
476 | struct netio_options *o = td->eo; | |
477 | int ret; | |
478 | ||
479 | fio_ro_check(td, io_u); | |
480 | ||
481 | ret = __fio_netio_queue(td, io_u, io_u->ddir); | |
482 | if (!o->pingpong || ret != FIO_Q_COMPLETED) | |
483 | return ret; | |
484 | ||
485 | /* | |
486 | * For ping-pong mode, receive or send reply as needed | |
487 | */ | |
488 | if (td_read(td) && io_u->ddir == DDIR_READ) | |
489 | ret = __fio_netio_queue(td, io_u, DDIR_WRITE); | |
490 | else if (td_write(td) && io_u->ddir == DDIR_WRITE) | |
491 | ret = __fio_netio_queue(td, io_u, DDIR_READ); | |
492 | ||
493 | return ret; | |
494 | } | |
495 | ||
b5af8293 | 496 | static int fio_netio_connect(struct thread_data *td, struct fio_file *f) |
ed92ac0c | 497 | { |
b5af8293 | 498 | struct netio_data *nd = td->io_ops->data; |
de890a1e | 499 | struct netio_options *o = td->eo; |
6264c7a8 | 500 | int type, domain; |
414c2a3e | 501 | |
de890a1e | 502 | if (o->proto == FIO_TYPE_TCP) { |
0fd666bf | 503 | domain = AF_INET; |
414c2a3e | 504 | type = SOCK_STREAM; |
de890a1e | 505 | } else if (o->proto == FIO_TYPE_UDP) { |
0fd666bf | 506 | domain = AF_INET; |
414c2a3e | 507 | type = SOCK_DGRAM; |
de890a1e | 508 | } else if (o->proto == FIO_TYPE_UNIX) { |
0fd666bf JA |
509 | domain = AF_UNIX; |
510 | type = SOCK_STREAM; | |
511 | } else { | |
de890a1e | 512 | log_err("fio: bad network type %d\n", o->proto); |
0fd666bf JA |
513 | f->fd = -1; |
514 | return 1; | |
515 | } | |
ed92ac0c | 516 | |
0fd666bf | 517 | f->fd = socket(domain, type, 0); |
b5af8293 JA |
518 | if (f->fd < 0) { |
519 | td_verror(td, errno, "socket"); | |
520 | return 1; | |
ed92ac0c JA |
521 | } |
522 | ||
1eafa37a | 523 | #ifdef CONFIG_TCP_NODELAY |
70a7878c | 524 | if (o->nodelay && o->proto == FIO_TYPE_TCP) { |
6264c7a8 JA |
525 | int optval = 1; |
526 | ||
26e594a5 | 527 | if (setsockopt(f->fd, IPPROTO_TCP, TCP_NODELAY, (void *) &optval, sizeof(int)) < 0) { |
70a7878c SN |
528 | log_err("fio: cannot set TCP_NODELAY option on socket (%s), disable with 'nodelay=0'\n", strerror(errno)); |
529 | return 1; | |
530 | } | |
531 | } | |
1eafa37a | 532 | #endif |
70a7878c | 533 | |
de890a1e | 534 | if (o->proto == FIO_TYPE_UDP) |
414c2a3e | 535 | return 0; |
de890a1e | 536 | else if (o->proto == FIO_TYPE_TCP) { |
67bf9823 | 537 | socklen_t len = sizeof(nd->addr); |
414c2a3e | 538 | |
0fd666bf JA |
539 | if (connect(f->fd, (struct sockaddr *) &nd->addr, len) < 0) { |
540 | td_verror(td, errno, "connect"); | |
b94cba47 | 541 | close(f->fd); |
0fd666bf JA |
542 | return 1; |
543 | } | |
544 | } else { | |
545 | struct sockaddr_un *addr = &nd->addr_un; | |
67bf9823 | 546 | socklen_t len; |
0fd666bf JA |
547 | |
548 | len = sizeof(addr->sun_family) + strlen(addr->sun_path) + 1; | |
549 | ||
550 | if (connect(f->fd, (struct sockaddr *) addr, len) < 0) { | |
551 | td_verror(td, errno, "connect"); | |
b94cba47 | 552 | close(f->fd); |
0fd666bf JA |
553 | return 1; |
554 | } | |
ed92ac0c JA |
555 | } |
556 | ||
557 | return 0; | |
ed92ac0c JA |
558 | } |
559 | ||
b5af8293 | 560 | static int fio_netio_accept(struct thread_data *td, struct fio_file *f) |
5fdd124a | 561 | { |
b5af8293 | 562 | struct netio_data *nd = td->io_ops->data; |
de890a1e | 563 | struct netio_options *o = td->eo; |
67bf9823 | 564 | socklen_t socklen = sizeof(nd->addr); |
6264c7a8 | 565 | int state; |
5fdd124a | 566 | |
de890a1e | 567 | if (o->proto == FIO_TYPE_UDP) { |
414c2a3e JA |
568 | f->fd = nd->listenfd; |
569 | return 0; | |
570 | } | |
571 | ||
859088d3 JA |
572 | state = td->runstate; |
573 | td_set_runstate(td, TD_SETTING_UP); | |
574 | ||
6d86144d | 575 | log_info("fio: waiting for connection\n"); |
5fdd124a | 576 | |
371d456c | 577 | if (poll_wait(td, nd->listenfd, POLLIN) < 0) |
859088d3 | 578 | goto err; |
0c09442b | 579 | |
371d456c JA |
580 | f->fd = accept(nd->listenfd, (struct sockaddr *) &nd->addr, &socklen); |
581 | if (f->fd < 0) { | |
582 | td_verror(td, errno, "accept"); | |
859088d3 | 583 | goto err; |
b5af8293 | 584 | } |
5fdd124a | 585 | |
1eafa37a | 586 | #ifdef CONFIG_TCP_NODELAY |
70a7878c | 587 | if (o->nodelay && o->proto == FIO_TYPE_TCP) { |
6264c7a8 JA |
588 | int optval = 1; |
589 | ||
26e594a5 | 590 | if (setsockopt(f->fd, IPPROTO_TCP, TCP_NODELAY, (void *) &optval, sizeof(int)) < 0) { |
70a7878c SN |
591 | log_err("fio: cannot set TCP_NODELAY option on socket (%s), disable with 'nodelay=0'\n", strerror(errno)); |
592 | return 1; | |
593 | } | |
594 | } | |
1eafa37a | 595 | #endif |
70a7878c | 596 | |
0cae16ff | 597 | reset_all_stats(td); |
859088d3 | 598 | td_set_runstate(td, state); |
b5af8293 | 599 | return 0; |
859088d3 JA |
600 | err: |
601 | td_set_runstate(td, state); | |
602 | return 1; | |
b5af8293 JA |
603 | } |
604 | ||
664fb3bd JA |
605 | static void fio_netio_udp_close(struct thread_data *td, struct fio_file *f) |
606 | { | |
607 | struct netio_data *nd = td->io_ops->data; | |
608 | struct udp_close_msg msg; | |
62b38926 | 609 | struct sockaddr *to = (struct sockaddr *) &nd->addr; |
664fb3bd JA |
610 | int ret; |
611 | ||
b96d2430 | 612 | msg.magic = htonl(FIO_LINK_OPEN_CLOSE_MAGIC); |
664fb3bd JA |
613 | msg.cmd = htonl(FIO_LINK_CLOSE); |
614 | ||
1f81991e | 615 | ret = sendto(f->fd, (void *) &msg, sizeof(msg), MSG_WAITALL, to, |
664fb3bd JA |
616 | sizeof(nd->addr)); |
617 | if (ret < 0) | |
618 | td_verror(td, errno, "sendto udp link close"); | |
619 | } | |
620 | ||
621 | static int fio_netio_close_file(struct thread_data *td, struct fio_file *f) | |
622 | { | |
de890a1e | 623 | struct netio_options *o = td->eo; |
664fb3bd JA |
624 | |
625 | /* | |
626 | * If this is an UDP connection, notify the receiver that we are | |
627 | * closing down the link | |
628 | */ | |
de890a1e | 629 | if (o->proto == FIO_TYPE_UDP) |
664fb3bd JA |
630 | fio_netio_udp_close(td, f); |
631 | ||
632 | return generic_close_file(td, f); | |
633 | } | |
634 | ||
b96d2430 JA |
635 | static int fio_netio_udp_recv_open(struct thread_data *td, struct fio_file *f) |
636 | { | |
637 | struct netio_data *nd = td->io_ops->data; | |
638 | struct udp_close_msg msg; | |
639 | struct sockaddr *to = (struct sockaddr *) &nd->addr; | |
67bf9823 | 640 | socklen_t len = sizeof(nd->addr); |
b96d2430 JA |
641 | int ret; |
642 | ||
1f81991e | 643 | ret = recvfrom(f->fd, (void *) &msg, sizeof(msg), MSG_WAITALL, to, &len); |
b96d2430 | 644 | if (ret < 0) { |
ee7062fd | 645 | td_verror(td, errno, "recvfrom udp link open"); |
b96d2430 JA |
646 | return ret; |
647 | } | |
648 | ||
649 | if (ntohl(msg.magic) != FIO_LINK_OPEN_CLOSE_MAGIC || | |
650 | ntohl(msg.cmd) != FIO_LINK_OPEN) { | |
651 | log_err("fio: bad udp open magic %x/%x\n", ntohl(msg.magic), | |
652 | ntohl(msg.cmd)); | |
653 | return -1; | |
654 | } | |
655 | ||
656 | return 0; | |
657 | } | |
658 | ||
659 | static int fio_netio_udp_send_open(struct thread_data *td, struct fio_file *f) | |
660 | { | |
661 | struct netio_data *nd = td->io_ops->data; | |
662 | struct udp_close_msg msg; | |
663 | struct sockaddr *to = (struct sockaddr *) &nd->addr; | |
664 | int ret; | |
665 | ||
666 | msg.magic = htonl(FIO_LINK_OPEN_CLOSE_MAGIC); | |
667 | msg.cmd = htonl(FIO_LINK_OPEN); | |
668 | ||
1f81991e | 669 | ret = sendto(f->fd, (void *) &msg, sizeof(msg), MSG_WAITALL, to, |
b96d2430 JA |
670 | sizeof(nd->addr)); |
671 | if (ret < 0) { | |
672 | td_verror(td, errno, "sendto udp link open"); | |
673 | return ret; | |
674 | } | |
675 | ||
676 | return 0; | |
677 | } | |
678 | ||
679 | static int fio_netio_open_file(struct thread_data *td, struct fio_file *f) | |
680 | { | |
681 | int ret; | |
682 | struct netio_options *o = td->eo; | |
683 | ||
684 | if (o->listen) | |
685 | ret = fio_netio_accept(td, f); | |
686 | else | |
687 | ret = fio_netio_connect(td, f); | |
688 | ||
689 | if (ret) { | |
690 | f->fd = -1; | |
691 | return ret; | |
692 | } | |
693 | ||
694 | if (o->proto == FIO_TYPE_UDP) { | |
695 | if (td_write(td)) | |
696 | ret = fio_netio_udp_send_open(td, f); | |
697 | else { | |
698 | int state; | |
699 | ||
700 | state = td->runstate; | |
701 | td_set_runstate(td, TD_SETTING_UP); | |
702 | ret = fio_netio_udp_recv_open(td, f); | |
703 | td_set_runstate(td, state); | |
704 | } | |
705 | } | |
706 | ||
707 | if (ret) | |
708 | fio_netio_close_file(td, f); | |
709 | ||
710 | return ret; | |
711 | } | |
712 | ||
0fd666bf JA |
713 | static int fio_netio_setup_connect_inet(struct thread_data *td, |
714 | const char *host, unsigned short port) | |
b5af8293 JA |
715 | { |
716 | struct netio_data *nd = td->io_ops->data; | |
717 | ||
166dce4b JA |
718 | if (!host) { |
719 | log_err("fio: connect with no host to connect to.\n"); | |
720 | if (td_read(td)) | |
721 | log_err("fio: did you forget to set 'listen'?\n"); | |
722 | ||
723 | td_verror(td, EINVAL, "no hostname= set"); | |
724 | return 1; | |
725 | } | |
726 | ||
b5af8293 JA |
727 | nd->addr.sin_family = AF_INET; |
728 | nd->addr.sin_port = htons(port); | |
729 | ||
730 | if (inet_aton(host, &nd->addr.sin_addr) != 1) { | |
731 | struct hostent *hent; | |
732 | ||
733 | hent = gethostbyname(host); | |
734 | if (!hent) { | |
735 | td_verror(td, errno, "gethostbyname"); | |
736 | return 1; | |
5fdd124a | 737 | } |
b5af8293 JA |
738 | |
739 | memcpy(&nd->addr.sin_addr, hent->h_addr, 4); | |
5fdd124a JA |
740 | } |
741 | ||
742 | return 0; | |
743 | } | |
744 | ||
0fd666bf JA |
745 | static int fio_netio_setup_connect_unix(struct thread_data *td, |
746 | const char *path) | |
747 | { | |
748 | struct netio_data *nd = td->io_ops->data; | |
749 | struct sockaddr_un *soun = &nd->addr_un; | |
750 | ||
751 | soun->sun_family = AF_UNIX; | |
752 | strcpy(soun->sun_path, path); | |
753 | return 0; | |
754 | } | |
755 | ||
de890a1e | 756 | static int fio_netio_setup_connect(struct thread_data *td) |
0fd666bf | 757 | { |
de890a1e | 758 | struct netio_options *o = td->eo; |
0fd666bf | 759 | |
de890a1e SL |
760 | if (o->proto == FIO_TYPE_UDP || o->proto == FIO_TYPE_TCP) |
761 | return fio_netio_setup_connect_inet(td, td->o.filename,o->port); | |
0fd666bf | 762 | else |
de890a1e | 763 | return fio_netio_setup_connect_unix(td, td->o.filename); |
0fd666bf JA |
764 | } |
765 | ||
766 | static int fio_netio_setup_listen_unix(struct thread_data *td, const char *path) | |
767 | { | |
768 | struct netio_data *nd = td->io_ops->data; | |
769 | struct sockaddr_un *addr = &nd->addr_un; | |
770 | mode_t mode; | |
771 | int len, fd; | |
772 | ||
773 | fd = socket(AF_UNIX, SOCK_STREAM, 0); | |
774 | if (fd < 0) { | |
775 | log_err("fio: socket: %s\n", strerror(errno)); | |
776 | return -1; | |
777 | } | |
778 | ||
779 | mode = umask(000); | |
780 | ||
781 | memset(addr, 0, sizeof(*addr)); | |
782 | addr->sun_family = AF_UNIX; | |
783 | strcpy(addr->sun_path, path); | |
784 | unlink(path); | |
785 | ||
786 | len = sizeof(addr->sun_family) + strlen(path) + 1; | |
787 | ||
788 | if (bind(fd, (struct sockaddr *) addr, len) < 0) { | |
789 | log_err("fio: bind: %s\n", strerror(errno)); | |
b94cba47 | 790 | close(fd); |
0fd666bf JA |
791 | return -1; |
792 | } | |
793 | ||
794 | umask(mode); | |
795 | nd->listenfd = fd; | |
796 | return 0; | |
797 | } | |
798 | ||
799 | static int fio_netio_setup_listen_inet(struct thread_data *td, short port) | |
ed92ac0c | 800 | { |
b5af8293 | 801 | struct netio_data *nd = td->io_ops->data; |
de890a1e | 802 | struct netio_options *o = td->eo; |
b511c9aa SB |
803 | struct ip_mreq mr; |
804 | struct sockaddr_in sin; | |
414c2a3e | 805 | int fd, opt, type; |
ed92ac0c | 806 | |
b511c9aa | 807 | memset(&sin, 0, sizeof(sin)); |
de890a1e | 808 | if (o->proto == FIO_TYPE_TCP) |
414c2a3e JA |
809 | type = SOCK_STREAM; |
810 | else | |
811 | type = SOCK_DGRAM; | |
812 | ||
0fd666bf | 813 | fd = socket(AF_INET, type, 0); |
ed92ac0c | 814 | if (fd < 0) { |
e1161c32 | 815 | td_verror(td, errno, "socket"); |
ed92ac0c JA |
816 | return 1; |
817 | } | |
818 | ||
819 | opt = 1; | |
26e594a5 | 820 | if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (void *) &opt, sizeof(opt)) < 0) { |
e1161c32 | 821 | td_verror(td, errno, "setsockopt"); |
4a93dec2 | 822 | close(fd); |
ed92ac0c JA |
823 | return 1; |
824 | } | |
6bedbfaf | 825 | #ifdef SO_REUSEPORT |
26e594a5 | 826 | if (setsockopt(fd, SOL_SOCKET, SO_REUSEPORT, (void *) &opt, sizeof(opt)) < 0) { |
e1161c32 | 827 | td_verror(td, errno, "setsockopt"); |
4a93dec2 | 828 | close(fd); |
6bedbfaf JA |
829 | return 1; |
830 | } | |
831 | #endif | |
ed92ac0c | 832 | |
b511c9aa SB |
833 | if (td->o.filename){ |
834 | if(o->proto != FIO_TYPE_UDP || | |
835 | !fio_netio_is_multicast(td->o.filename)) { | |
836 | log_err("fio: hostname not valid for non-multicast inbound network IO\n"); | |
837 | close(fd); | |
838 | return 1; | |
839 | } | |
840 | ||
841 | inet_aton(td->o.filename, &sin.sin_addr); | |
842 | ||
843 | mr.imr_multiaddr = sin.sin_addr; | |
844 | mr.imr_interface.s_addr = htonl(INADDR_ANY); | |
845 | if (setsockopt(fd, IPPROTO_IP, IP_ADD_MEMBERSHIP, &mr, sizeof(mr)) < 0) { | |
846 | td_verror(td, errno, "setsockopt IP_ADD_MEMBERSHIP"); | |
847 | close(fd); | |
848 | return 1; | |
849 | } | |
850 | } | |
851 | ||
b5af8293 | 852 | nd->addr.sin_family = AF_INET; |
b511c9aa | 853 | nd->addr.sin_addr.s_addr = sin.sin_addr.s_addr ? sin.sin_addr.s_addr : htonl(INADDR_ANY); |
b5af8293 | 854 | nd->addr.sin_port = htons(port); |
ed92ac0c | 855 | |
b5af8293 | 856 | if (bind(fd, (struct sockaddr *) &nd->addr, sizeof(nd->addr)) < 0) { |
e1161c32 | 857 | td_verror(td, errno, "bind"); |
ed92ac0c JA |
858 | return 1; |
859 | } | |
0fd666bf JA |
860 | |
861 | nd->listenfd = fd; | |
862 | return 0; | |
863 | } | |
864 | ||
de890a1e | 865 | static int fio_netio_setup_listen(struct thread_data *td) |
0fd666bf JA |
866 | { |
867 | struct netio_data *nd = td->io_ops->data; | |
de890a1e | 868 | struct netio_options *o = td->eo; |
0fd666bf JA |
869 | int ret; |
870 | ||
de890a1e SL |
871 | if (o->proto == FIO_TYPE_UDP || o->proto == FIO_TYPE_TCP) |
872 | ret = fio_netio_setup_listen_inet(td, o->port); | |
0fd666bf | 873 | else |
de890a1e | 874 | ret = fio_netio_setup_listen_unix(td, td->o.filename); |
0fd666bf JA |
875 | |
876 | if (ret) | |
877 | return ret; | |
de890a1e | 878 | if (o->proto == FIO_TYPE_UDP) |
0fd666bf JA |
879 | return 0; |
880 | ||
881 | if (listen(nd->listenfd, 10) < 0) { | |
e1161c32 | 882 | td_verror(td, errno, "listen"); |
0fd666bf | 883 | nd->listenfd = -1; |
ed92ac0c JA |
884 | return 1; |
885 | } | |
886 | ||
b5af8293 | 887 | return 0; |
ed92ac0c JA |
888 | } |
889 | ||
9bec88e1 | 890 | static int fio_netio_init(struct thread_data *td) |
ed92ac0c | 891 | { |
de890a1e | 892 | struct netio_options *o = td->eo; |
af52b345 | 893 | int ret; |
ed92ac0c | 894 | |
3f457bea BC |
895 | #ifdef WIN32 |
896 | WSADATA wsd; | |
897 | WSAStartup(MAKEWORD(2,2), &wsd); | |
898 | #endif | |
899 | ||
16d55aae JA |
900 | if (td_random(td)) { |
901 | log_err("fio: network IO can't be random\n"); | |
902 | return 1; | |
903 | } | |
ed92ac0c | 904 | |
de890a1e SL |
905 | if (o->proto == FIO_TYPE_UNIX && o->port) { |
906 | log_err("fio: network IO port not valid with unix socket\n"); | |
907 | return 1; | |
908 | } else if (o->proto != FIO_TYPE_UNIX && !o->port) { | |
909 | log_err("fio: network IO requires port for tcp or udp\n"); | |
910 | return 1; | |
911 | } | |
ed92ac0c | 912 | |
de890a1e SL |
913 | if (o->proto != FIO_TYPE_TCP) { |
914 | if (o->listen) { | |
9b986065 JA |
915 | log_err("fio: listen only valid for TCP proto IO\n"); |
916 | return 1; | |
de890a1e SL |
917 | } |
918 | if (td_rw(td)) { | |
9b986065 | 919 | log_err("fio: datagram network connections must be" |
de890a1e | 920 | " read OR write\n"); |
9b986065 JA |
921 | return 1; |
922 | } | |
923 | if (o->proto == FIO_TYPE_UNIX && !td->o.filename) { | |
924 | log_err("fio: UNIX sockets need host/filename\n"); | |
925 | return 1; | |
de890a1e SL |
926 | } |
927 | o->listen = td_read(td); | |
928 | } | |
443662ef | 929 | |
de890a1e SL |
930 | if (o->listen) |
931 | ret = fio_netio_setup_listen(td); | |
0fd666bf | 932 | else |
de890a1e | 933 | ret = fio_netio_setup_connect(td); |
ed92ac0c | 934 | |
7bb48f84 | 935 | return ret; |
ed92ac0c JA |
936 | } |
937 | ||
b5af8293 | 938 | static void fio_netio_cleanup(struct thread_data *td) |
9bec88e1 | 939 | { |
b5af8293 JA |
940 | struct netio_data *nd = td->io_ops->data; |
941 | ||
942 | if (nd) { | |
64b24cd8 JA |
943 | if (nd->listenfd != -1) |
944 | close(nd->listenfd); | |
945 | if (nd->pipes[0] != -1) | |
946 | close(nd->pipes[0]); | |
947 | if (nd->pipes[1] != -1) | |
948 | close(nd->pipes[1]); | |
949 | ||
b5af8293 | 950 | free(nd); |
b5af8293 JA |
951 | } |
952 | } | |
953 | ||
954 | static int fio_netio_setup(struct thread_data *td) | |
955 | { | |
7bb48f84 | 956 | struct netio_data *nd; |
7bb48f84 | 957 | |
de890a1e SL |
958 | if (!td->files_index) { |
959 | add_file(td, td->o.filename ?: "net"); | |
960 | td->o.nr_files = td->o.nr_files ?: 1; | |
961 | } | |
962 | ||
7bb48f84 JA |
963 | if (!td->io_ops->data) { |
964 | nd = malloc(sizeof(*nd));; | |
965 | ||
966 | memset(nd, 0, sizeof(*nd)); | |
967 | nd->listenfd = -1; | |
64b24cd8 | 968 | nd->pipes[0] = nd->pipes[1] = -1; |
7bb48f84 | 969 | td->io_ops->data = nd; |
7bb48f84 | 970 | } |
b5af8293 | 971 | |
9bec88e1 JA |
972 | return 0; |
973 | } | |
974 | ||
36d80bc7 JA |
975 | static void fio_netio_terminate(struct thread_data *td) |
976 | { | |
977 | kill(td->pid, SIGUSR2); | |
978 | } | |
979 | ||
67bf9823 | 980 | #ifdef CONFIG_LINUX_SPLICE |
9cce02e8 JA |
981 | static int fio_netio_setup_splice(struct thread_data *td) |
982 | { | |
983 | struct netio_data *nd; | |
984 | ||
985 | fio_netio_setup(td); | |
986 | ||
987 | nd = td->io_ops->data; | |
988 | if (nd) { | |
989 | if (pipe(nd->pipes) < 0) | |
990 | return 1; | |
991 | ||
992 | nd->use_splice = 1; | |
993 | return 0; | |
994 | } | |
995 | ||
996 | return 1; | |
997 | } | |
998 | ||
5921e80c | 999 | static struct ioengine_ops ioengine_splice = { |
de890a1e SL |
1000 | .name = "netsplice", |
1001 | .version = FIO_IOOPS_VERSION, | |
1002 | .prep = fio_netio_prep, | |
1003 | .queue = fio_netio_queue, | |
1004 | .setup = fio_netio_setup_splice, | |
1005 | .init = fio_netio_init, | |
1006 | .cleanup = fio_netio_cleanup, | |
1007 | .open_file = fio_netio_open_file, | |
36d80bc7 JA |
1008 | .close_file = fio_netio_close_file, |
1009 | .terminate = fio_netio_terminate, | |
de890a1e SL |
1010 | .options = options, |
1011 | .option_struct_size = sizeof(struct netio_options), | |
1012 | .flags = FIO_SYNCIO | FIO_DISKLESSIO | FIO_UNIDIR | | |
36d80bc7 | 1013 | FIO_PIPEIO, |
ed92ac0c | 1014 | }; |
5921e80c | 1015 | #endif |
ed92ac0c | 1016 | |
5921e80c | 1017 | static struct ioengine_ops ioengine_rw = { |
de890a1e SL |
1018 | .name = "net", |
1019 | .version = FIO_IOOPS_VERSION, | |
1020 | .prep = fio_netio_prep, | |
1021 | .queue = fio_netio_queue, | |
1022 | .setup = fio_netio_setup, | |
1023 | .init = fio_netio_init, | |
1024 | .cleanup = fio_netio_cleanup, | |
1025 | .open_file = fio_netio_open_file, | |
1026 | .close_file = fio_netio_close_file, | |
36d80bc7 | 1027 | .terminate = fio_netio_terminate, |
de890a1e SL |
1028 | .options = options, |
1029 | .option_struct_size = sizeof(struct netio_options), | |
1030 | .flags = FIO_SYNCIO | FIO_DISKLESSIO | FIO_UNIDIR | | |
ad705bcb | 1031 | FIO_PIPEIO | FIO_BIT_BASED, |
9cce02e8 JA |
1032 | }; |
1033 | ||
de890a1e SL |
1034 | static int str_hostname_cb(void *data, const char *input) |
1035 | { | |
1036 | struct netio_options *o = data; | |
1037 | ||
1038 | if (o->td->o.filename) | |
1039 | free(o->td->o.filename); | |
1040 | o->td->o.filename = strdup(input); | |
1041 | return 0; | |
1042 | } | |
1043 | ||
ed92ac0c JA |
1044 | static void fio_init fio_netio_register(void) |
1045 | { | |
9cce02e8 | 1046 | register_ioengine(&ioengine_rw); |
67bf9823 | 1047 | #ifdef CONFIG_LINUX_SPLICE |
9cce02e8 | 1048 | register_ioengine(&ioengine_splice); |
5921e80c | 1049 | #endif |
ed92ac0c JA |
1050 | } |
1051 | ||
1052 | static void fio_exit fio_netio_unregister(void) | |
1053 | { | |
9cce02e8 | 1054 | unregister_ioengine(&ioengine_rw); |
67bf9823 | 1055 | #ifdef CONFIG_LINUX_SPLICE |
9cce02e8 | 1056 | unregister_ioengine(&ioengine_splice); |
5921e80c | 1057 | #endif |
ed92ac0c | 1058 | } |