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