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