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