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