| 1 | /* |
| 2 | * net engine |
| 3 | * |
| 4 | * IO engine that reads/writes to/from sockets. |
| 5 | * |
| 6 | */ |
| 7 | #include <stdio.h> |
| 8 | #include <stdlib.h> |
| 9 | #include <unistd.h> |
| 10 | #include <signal.h> |
| 11 | #include <errno.h> |
| 12 | #include <netinet/in.h> |
| 13 | #include <netinet/tcp.h> |
| 14 | #include <arpa/inet.h> |
| 15 | #include <netdb.h> |
| 16 | #include <poll.h> |
| 17 | #include <sys/stat.h> |
| 18 | #include <sys/socket.h> |
| 19 | #include <sys/un.h> |
| 20 | |
| 21 | #include "../fio.h" |
| 22 | #include "../verify.h" |
| 23 | #include "../optgroup.h" |
| 24 | |
| 25 | struct netio_data { |
| 26 | int listenfd; |
| 27 | int use_splice; |
| 28 | int seq_off; |
| 29 | int pipes[2]; |
| 30 | struct sockaddr_in addr; |
| 31 | struct sockaddr_in6 addr6; |
| 32 | struct sockaddr_un addr_un; |
| 33 | uint64_t udp_send_seq; |
| 34 | uint64_t udp_recv_seq; |
| 35 | }; |
| 36 | |
| 37 | struct netio_options { |
| 38 | struct thread_data *td; |
| 39 | unsigned int port; |
| 40 | unsigned int proto; |
| 41 | unsigned int listen; |
| 42 | unsigned int pingpong; |
| 43 | unsigned int nodelay; |
| 44 | unsigned int ttl; |
| 45 | unsigned int window_size; |
| 46 | unsigned int mss; |
| 47 | char *intfc; |
| 48 | }; |
| 49 | |
| 50 | struct udp_close_msg { |
| 51 | uint32_t magic; |
| 52 | uint32_t cmd; |
| 53 | }; |
| 54 | |
| 55 | struct udp_seq { |
| 56 | uint64_t magic; |
| 57 | uint64_t seq; |
| 58 | uint64_t bs; |
| 59 | }; |
| 60 | |
| 61 | enum { |
| 62 | FIO_LINK_CLOSE = 0x89, |
| 63 | FIO_LINK_OPEN_CLOSE_MAGIC = 0x6c696e6b, |
| 64 | FIO_LINK_OPEN = 0x98, |
| 65 | FIO_UDP_SEQ_MAGIC = 0x657375716e556563ULL, |
| 66 | |
| 67 | FIO_TYPE_TCP = 1, |
| 68 | FIO_TYPE_UDP = 2, |
| 69 | FIO_TYPE_UNIX = 3, |
| 70 | FIO_TYPE_TCP_V6 = 4, |
| 71 | FIO_TYPE_UDP_V6 = 5, |
| 72 | }; |
| 73 | |
| 74 | static int str_hostname_cb(void *data, const char *input); |
| 75 | static struct fio_option options[] = { |
| 76 | { |
| 77 | .name = "hostname", |
| 78 | .lname = "net engine hostname", |
| 79 | .type = FIO_OPT_STR_STORE, |
| 80 | .cb = str_hostname_cb, |
| 81 | .help = "Hostname for net IO engine", |
| 82 | .category = FIO_OPT_C_ENGINE, |
| 83 | .group = FIO_OPT_G_NETIO, |
| 84 | }, |
| 85 | { |
| 86 | .name = "port", |
| 87 | .lname = "net engine port", |
| 88 | .type = FIO_OPT_INT, |
| 89 | .off1 = offsetof(struct netio_options, port), |
| 90 | .minval = 1, |
| 91 | .maxval = 65535, |
| 92 | .help = "Port to use for TCP or UDP net connections", |
| 93 | .category = FIO_OPT_C_ENGINE, |
| 94 | .group = FIO_OPT_G_NETIO, |
| 95 | }, |
| 96 | { |
| 97 | .name = "protocol", |
| 98 | .lname = "net engine protocol", |
| 99 | .alias = "proto", |
| 100 | .type = FIO_OPT_STR, |
| 101 | .off1 = offsetof(struct netio_options, proto), |
| 102 | .help = "Network protocol to use", |
| 103 | .def = "tcp", |
| 104 | .posval = { |
| 105 | { .ival = "tcp", |
| 106 | .oval = FIO_TYPE_TCP, |
| 107 | .help = "Transmission Control Protocol", |
| 108 | }, |
| 109 | #ifdef CONFIG_IPV6 |
| 110 | { .ival = "tcpv6", |
| 111 | .oval = FIO_TYPE_TCP_V6, |
| 112 | .help = "Transmission Control Protocol V6", |
| 113 | }, |
| 114 | #endif |
| 115 | { .ival = "udp", |
| 116 | .oval = FIO_TYPE_UDP, |
| 117 | .help = "User Datagram Protocol", |
| 118 | }, |
| 119 | #ifdef CONFIG_IPV6 |
| 120 | { .ival = "udpv6", |
| 121 | .oval = FIO_TYPE_UDP_V6, |
| 122 | .help = "User Datagram Protocol V6", |
| 123 | }, |
| 124 | #endif |
| 125 | { .ival = "unix", |
| 126 | .oval = FIO_TYPE_UNIX, |
| 127 | .help = "UNIX domain socket", |
| 128 | }, |
| 129 | }, |
| 130 | .category = FIO_OPT_C_ENGINE, |
| 131 | .group = FIO_OPT_G_NETIO, |
| 132 | }, |
| 133 | #ifdef CONFIG_TCP_NODELAY |
| 134 | { |
| 135 | .name = "nodelay", |
| 136 | .lname = "No Delay", |
| 137 | .type = FIO_OPT_BOOL, |
| 138 | .off1 = offsetof(struct netio_options, nodelay), |
| 139 | .help = "Use TCP_NODELAY on TCP connections", |
| 140 | .category = FIO_OPT_C_ENGINE, |
| 141 | .group = FIO_OPT_G_NETIO, |
| 142 | }, |
| 143 | #endif |
| 144 | { |
| 145 | .name = "listen", |
| 146 | .lname = "net engine listen", |
| 147 | .type = FIO_OPT_STR_SET, |
| 148 | .off1 = offsetof(struct netio_options, listen), |
| 149 | .help = "Listen for incoming TCP connections", |
| 150 | .category = FIO_OPT_C_ENGINE, |
| 151 | .group = FIO_OPT_G_NETIO, |
| 152 | }, |
| 153 | { |
| 154 | .name = "pingpong", |
| 155 | .lname = "Ping Pong", |
| 156 | .type = FIO_OPT_STR_SET, |
| 157 | .off1 = offsetof(struct netio_options, pingpong), |
| 158 | .help = "Ping-pong IO requests", |
| 159 | .category = FIO_OPT_C_ENGINE, |
| 160 | .group = FIO_OPT_G_NETIO, |
| 161 | }, |
| 162 | { |
| 163 | .name = "interface", |
| 164 | .lname = "net engine interface", |
| 165 | .type = FIO_OPT_STR_STORE, |
| 166 | .off1 = offsetof(struct netio_options, intfc), |
| 167 | .help = "Network interface to use", |
| 168 | .category = FIO_OPT_C_ENGINE, |
| 169 | .group = FIO_OPT_G_NETIO, |
| 170 | }, |
| 171 | { |
| 172 | .name = "ttl", |
| 173 | .lname = "net engine multicast ttl", |
| 174 | .type = FIO_OPT_INT, |
| 175 | .off1 = offsetof(struct netio_options, ttl), |
| 176 | .def = "1", |
| 177 | .minval = 0, |
| 178 | .help = "Time-to-live value for outgoing UDP multicast packets", |
| 179 | .category = FIO_OPT_C_ENGINE, |
| 180 | .group = FIO_OPT_G_NETIO, |
| 181 | }, |
| 182 | #ifdef CONFIG_NET_WINDOWSIZE |
| 183 | { |
| 184 | .name = "window_size", |
| 185 | .lname = "Window Size", |
| 186 | .type = FIO_OPT_INT, |
| 187 | .off1 = offsetof(struct netio_options, window_size), |
| 188 | .minval = 0, |
| 189 | .help = "Set socket buffer window size", |
| 190 | .category = FIO_OPT_C_ENGINE, |
| 191 | .group = FIO_OPT_G_NETIO, |
| 192 | }, |
| 193 | #endif |
| 194 | #ifdef CONFIG_NET_MSS |
| 195 | { |
| 196 | .name = "mss", |
| 197 | .lname = "Maximum segment size", |
| 198 | .type = FIO_OPT_INT, |
| 199 | .off1 = offsetof(struct netio_options, mss), |
| 200 | .minval = 0, |
| 201 | .help = "Set TCP maximum segment size", |
| 202 | .category = FIO_OPT_C_ENGINE, |
| 203 | .group = FIO_OPT_G_NETIO, |
| 204 | }, |
| 205 | #endif |
| 206 | { |
| 207 | .name = NULL, |
| 208 | }, |
| 209 | }; |
| 210 | |
| 211 | static inline int is_udp(struct netio_options *o) |
| 212 | { |
| 213 | return o->proto == FIO_TYPE_UDP || o->proto == FIO_TYPE_UDP_V6; |
| 214 | } |
| 215 | |
| 216 | static inline int is_tcp(struct netio_options *o) |
| 217 | { |
| 218 | return o->proto == FIO_TYPE_TCP || o->proto == FIO_TYPE_TCP_V6; |
| 219 | } |
| 220 | |
| 221 | static inline int is_ipv6(struct netio_options *o) |
| 222 | { |
| 223 | return o->proto == FIO_TYPE_UDP_V6 || o->proto == FIO_TYPE_TCP_V6; |
| 224 | } |
| 225 | |
| 226 | static int set_window_size(struct thread_data *td, int fd) |
| 227 | { |
| 228 | #ifdef CONFIG_NET_WINDOWSIZE |
| 229 | struct netio_options *o = td->eo; |
| 230 | unsigned int wss; |
| 231 | int snd, rcv, ret; |
| 232 | |
| 233 | if (!o->window_size) |
| 234 | return 0; |
| 235 | |
| 236 | rcv = o->listen || o->pingpong; |
| 237 | snd = !o->listen || o->pingpong; |
| 238 | wss = o->window_size; |
| 239 | ret = 0; |
| 240 | |
| 241 | if (rcv) { |
| 242 | ret = setsockopt(fd, SOL_SOCKET, SO_RCVBUF, (void *) &wss, |
| 243 | sizeof(wss)); |
| 244 | if (ret < 0) |
| 245 | td_verror(td, errno, "rcvbuf window size"); |
| 246 | } |
| 247 | if (snd && !ret) { |
| 248 | ret = setsockopt(fd, SOL_SOCKET, SO_SNDBUF, (void *) &wss, |
| 249 | sizeof(wss)); |
| 250 | if (ret < 0) |
| 251 | td_verror(td, errno, "sndbuf window size"); |
| 252 | } |
| 253 | |
| 254 | return ret; |
| 255 | #else |
| 256 | td_verror(td, -EINVAL, "setsockopt window size"); |
| 257 | return -1; |
| 258 | #endif |
| 259 | } |
| 260 | |
| 261 | static int set_mss(struct thread_data *td, int fd) |
| 262 | { |
| 263 | #ifdef CONFIG_NET_MSS |
| 264 | struct netio_options *o = td->eo; |
| 265 | unsigned int mss; |
| 266 | int ret; |
| 267 | |
| 268 | if (!o->mss || !is_tcp(o)) |
| 269 | return 0; |
| 270 | |
| 271 | mss = o->mss; |
| 272 | ret = setsockopt(fd, IPPROTO_TCP, TCP_MAXSEG, (void *) &mss, |
| 273 | sizeof(mss)); |
| 274 | if (ret < 0) |
| 275 | td_verror(td, errno, "setsockopt TCP_MAXSEG"); |
| 276 | |
| 277 | return ret; |
| 278 | #else |
| 279 | td_verror(td, -EINVAL, "setsockopt TCP_MAXSEG"); |
| 280 | return -1; |
| 281 | #endif |
| 282 | } |
| 283 | |
| 284 | |
| 285 | /* |
| 286 | * Return -1 for error and 'nr events' for a positive number |
| 287 | * of events |
| 288 | */ |
| 289 | static int poll_wait(struct thread_data *td, int fd, short events) |
| 290 | { |
| 291 | struct pollfd pfd; |
| 292 | int ret; |
| 293 | |
| 294 | while (!td->terminate) { |
| 295 | pfd.fd = fd; |
| 296 | pfd.events = events; |
| 297 | ret = poll(&pfd, 1, -1); |
| 298 | if (ret < 0) { |
| 299 | if (errno == EINTR) |
| 300 | break; |
| 301 | |
| 302 | td_verror(td, errno, "poll"); |
| 303 | return -1; |
| 304 | } else if (!ret) |
| 305 | continue; |
| 306 | |
| 307 | break; |
| 308 | } |
| 309 | |
| 310 | if (pfd.revents & events) |
| 311 | return 1; |
| 312 | |
| 313 | return -1; |
| 314 | } |
| 315 | |
| 316 | static int fio_netio_is_multicast(const char *mcaddr) |
| 317 | { |
| 318 | in_addr_t addr = inet_network(mcaddr); |
| 319 | if (addr == -1) |
| 320 | return 0; |
| 321 | |
| 322 | if (inet_network("224.0.0.0") <= addr && |
| 323 | inet_network("239.255.255.255") >= addr) |
| 324 | return 1; |
| 325 | |
| 326 | return 0; |
| 327 | } |
| 328 | |
| 329 | |
| 330 | static int fio_netio_prep(struct thread_data *td, struct io_u *io_u) |
| 331 | { |
| 332 | struct netio_options *o = td->eo; |
| 333 | |
| 334 | /* |
| 335 | * Make sure we don't see spurious reads to a receiver, and vice versa |
| 336 | */ |
| 337 | if (is_tcp(o)) |
| 338 | return 0; |
| 339 | |
| 340 | if ((o->listen && io_u->ddir == DDIR_WRITE) || |
| 341 | (!o->listen && io_u->ddir == DDIR_READ)) { |
| 342 | td_verror(td, EINVAL, "bad direction"); |
| 343 | return 1; |
| 344 | } |
| 345 | |
| 346 | return 0; |
| 347 | } |
| 348 | |
| 349 | #ifdef CONFIG_LINUX_SPLICE |
| 350 | static int splice_io_u(int fdin, int fdout, unsigned int len) |
| 351 | { |
| 352 | int bytes = 0; |
| 353 | |
| 354 | while (len) { |
| 355 | int ret = splice(fdin, NULL, fdout, NULL, len, 0); |
| 356 | |
| 357 | if (ret < 0) { |
| 358 | if (!bytes) |
| 359 | bytes = ret; |
| 360 | |
| 361 | break; |
| 362 | } else if (!ret) |
| 363 | break; |
| 364 | |
| 365 | bytes += ret; |
| 366 | len -= ret; |
| 367 | } |
| 368 | |
| 369 | return bytes; |
| 370 | } |
| 371 | |
| 372 | /* |
| 373 | * Receive bytes from a socket and fill them into the internal pipe |
| 374 | */ |
| 375 | static int splice_in(struct thread_data *td, struct io_u *io_u) |
| 376 | { |
| 377 | struct netio_data *nd = td->io_ops_data; |
| 378 | |
| 379 | return splice_io_u(io_u->file->fd, nd->pipes[1], io_u->xfer_buflen); |
| 380 | } |
| 381 | |
| 382 | /* |
| 383 | * Transmit 'len' bytes from the internal pipe |
| 384 | */ |
| 385 | static int splice_out(struct thread_data *td, struct io_u *io_u, |
| 386 | unsigned int len) |
| 387 | { |
| 388 | struct netio_data *nd = td->io_ops_data; |
| 389 | |
| 390 | return splice_io_u(nd->pipes[0], io_u->file->fd, len); |
| 391 | } |
| 392 | |
| 393 | static int vmsplice_io_u(struct io_u *io_u, int fd, unsigned int len) |
| 394 | { |
| 395 | struct iovec iov = { |
| 396 | .iov_base = io_u->xfer_buf, |
| 397 | .iov_len = len, |
| 398 | }; |
| 399 | int bytes = 0; |
| 400 | |
| 401 | while (iov.iov_len) { |
| 402 | int ret = vmsplice(fd, &iov, 1, SPLICE_F_MOVE); |
| 403 | |
| 404 | if (ret < 0) { |
| 405 | if (!bytes) |
| 406 | bytes = ret; |
| 407 | break; |
| 408 | } else if (!ret) |
| 409 | break; |
| 410 | |
| 411 | iov.iov_len -= ret; |
| 412 | iov.iov_base += ret; |
| 413 | bytes += ret; |
| 414 | } |
| 415 | |
| 416 | return bytes; |
| 417 | |
| 418 | } |
| 419 | |
| 420 | /* |
| 421 | * vmsplice() pipe to io_u buffer |
| 422 | */ |
| 423 | static int vmsplice_io_u_out(struct thread_data *td, struct io_u *io_u, |
| 424 | unsigned int len) |
| 425 | { |
| 426 | struct netio_data *nd = td->io_ops_data; |
| 427 | |
| 428 | return vmsplice_io_u(io_u, nd->pipes[0], len); |
| 429 | } |
| 430 | |
| 431 | /* |
| 432 | * vmsplice() io_u to pipe |
| 433 | */ |
| 434 | static int vmsplice_io_u_in(struct thread_data *td, struct io_u *io_u) |
| 435 | { |
| 436 | struct netio_data *nd = td->io_ops_data; |
| 437 | |
| 438 | return vmsplice_io_u(io_u, nd->pipes[1], io_u->xfer_buflen); |
| 439 | } |
| 440 | |
| 441 | /* |
| 442 | * splice receive - transfer socket data into a pipe using splice, then map |
| 443 | * that pipe data into the io_u using vmsplice. |
| 444 | */ |
| 445 | static int fio_netio_splice_in(struct thread_data *td, struct io_u *io_u) |
| 446 | { |
| 447 | int ret; |
| 448 | |
| 449 | ret = splice_in(td, io_u); |
| 450 | if (ret > 0) |
| 451 | return vmsplice_io_u_out(td, io_u, ret); |
| 452 | |
| 453 | return ret; |
| 454 | } |
| 455 | |
| 456 | /* |
| 457 | * splice transmit - map data from the io_u into a pipe by using vmsplice, |
| 458 | * then transfer that pipe to a socket using splice. |
| 459 | */ |
| 460 | static int fio_netio_splice_out(struct thread_data *td, struct io_u *io_u) |
| 461 | { |
| 462 | int ret; |
| 463 | |
| 464 | ret = vmsplice_io_u_in(td, io_u); |
| 465 | if (ret > 0) |
| 466 | return splice_out(td, io_u, ret); |
| 467 | |
| 468 | return ret; |
| 469 | } |
| 470 | #else |
| 471 | static int fio_netio_splice_in(struct thread_data *td, struct io_u *io_u) |
| 472 | { |
| 473 | errno = EOPNOTSUPP; |
| 474 | return -1; |
| 475 | } |
| 476 | |
| 477 | static int fio_netio_splice_out(struct thread_data *td, struct io_u *io_u) |
| 478 | { |
| 479 | errno = EOPNOTSUPP; |
| 480 | return -1; |
| 481 | } |
| 482 | #endif |
| 483 | |
| 484 | static void store_udp_seq(struct netio_data *nd, struct io_u *io_u) |
| 485 | { |
| 486 | struct udp_seq *us; |
| 487 | |
| 488 | if (io_u->xfer_buflen < sizeof(*us)) |
| 489 | return; |
| 490 | |
| 491 | us = io_u->xfer_buf + io_u->xfer_buflen - sizeof(*us); |
| 492 | us->magic = cpu_to_le64((uint64_t) FIO_UDP_SEQ_MAGIC); |
| 493 | us->bs = cpu_to_le64((uint64_t) io_u->xfer_buflen); |
| 494 | us->seq = cpu_to_le64(nd->udp_send_seq++); |
| 495 | } |
| 496 | |
| 497 | static void verify_udp_seq(struct thread_data *td, struct netio_data *nd, |
| 498 | struct io_u *io_u) |
| 499 | { |
| 500 | struct udp_seq *us; |
| 501 | uint64_t seq; |
| 502 | |
| 503 | if (io_u->xfer_buflen < sizeof(*us)) |
| 504 | return; |
| 505 | |
| 506 | if (nd->seq_off) |
| 507 | return; |
| 508 | |
| 509 | us = io_u->xfer_buf + io_u->xfer_buflen - sizeof(*us); |
| 510 | if (le64_to_cpu(us->magic) != FIO_UDP_SEQ_MAGIC) |
| 511 | return; |
| 512 | if (le64_to_cpu(us->bs) != io_u->xfer_buflen) { |
| 513 | nd->seq_off = 1; |
| 514 | return; |
| 515 | } |
| 516 | |
| 517 | seq = le64_to_cpu(us->seq); |
| 518 | |
| 519 | if (seq != nd->udp_recv_seq) |
| 520 | td->ts.drop_io_u[io_u->ddir] += seq - nd->udp_recv_seq; |
| 521 | |
| 522 | nd->udp_recv_seq = seq + 1; |
| 523 | } |
| 524 | |
| 525 | static int fio_netio_send(struct thread_data *td, struct io_u *io_u) |
| 526 | { |
| 527 | struct netio_data *nd = td->io_ops_data; |
| 528 | struct netio_options *o = td->eo; |
| 529 | int ret, flags = 0; |
| 530 | |
| 531 | do { |
| 532 | if (is_udp(o)) { |
| 533 | const struct sockaddr *to; |
| 534 | socklen_t len; |
| 535 | |
| 536 | if (is_ipv6(o)) { |
| 537 | to = (struct sockaddr *) &nd->addr6; |
| 538 | len = sizeof(nd->addr6); |
| 539 | } else { |
| 540 | to = (struct sockaddr *) &nd->addr; |
| 541 | len = sizeof(nd->addr); |
| 542 | } |
| 543 | |
| 544 | if (td->o.verify == VERIFY_NONE) |
| 545 | store_udp_seq(nd, io_u); |
| 546 | |
| 547 | ret = sendto(io_u->file->fd, io_u->xfer_buf, |
| 548 | io_u->xfer_buflen, flags, to, len); |
| 549 | } else { |
| 550 | /* |
| 551 | * if we are going to write more, set MSG_MORE |
| 552 | */ |
| 553 | #ifdef MSG_MORE |
| 554 | if ((td->this_io_bytes[DDIR_WRITE] + io_u->xfer_buflen < |
| 555 | td->o.size) && !o->pingpong) |
| 556 | flags |= MSG_MORE; |
| 557 | #endif |
| 558 | ret = send(io_u->file->fd, io_u->xfer_buf, |
| 559 | io_u->xfer_buflen, flags); |
| 560 | } |
| 561 | if (ret > 0) |
| 562 | break; |
| 563 | |
| 564 | ret = poll_wait(td, io_u->file->fd, POLLOUT); |
| 565 | if (ret <= 0) |
| 566 | break; |
| 567 | } while (1); |
| 568 | |
| 569 | return ret; |
| 570 | } |
| 571 | |
| 572 | static int is_close_msg(struct io_u *io_u, int len) |
| 573 | { |
| 574 | struct udp_close_msg *msg; |
| 575 | |
| 576 | if (len != sizeof(struct udp_close_msg)) |
| 577 | return 0; |
| 578 | |
| 579 | msg = io_u->xfer_buf; |
| 580 | if (le32_to_cpu(msg->magic) != FIO_LINK_OPEN_CLOSE_MAGIC) |
| 581 | return 0; |
| 582 | if (le32_to_cpu(msg->cmd) != FIO_LINK_CLOSE) |
| 583 | return 0; |
| 584 | |
| 585 | return 1; |
| 586 | } |
| 587 | |
| 588 | static int fio_netio_recv(struct thread_data *td, struct io_u *io_u) |
| 589 | { |
| 590 | struct netio_data *nd = td->io_ops_data; |
| 591 | struct netio_options *o = td->eo; |
| 592 | int ret, flags = 0; |
| 593 | |
| 594 | do { |
| 595 | if (is_udp(o)) { |
| 596 | struct sockaddr *from; |
| 597 | socklen_t l, *len = &l; |
| 598 | |
| 599 | if (o->listen) { |
| 600 | if (!is_ipv6(o)) { |
| 601 | from = (struct sockaddr *) &nd->addr; |
| 602 | *len = sizeof(nd->addr); |
| 603 | } else { |
| 604 | from = (struct sockaddr *) &nd->addr6; |
| 605 | *len = sizeof(nd->addr6); |
| 606 | } |
| 607 | } else { |
| 608 | from = NULL; |
| 609 | len = NULL; |
| 610 | } |
| 611 | |
| 612 | ret = recvfrom(io_u->file->fd, io_u->xfer_buf, |
| 613 | io_u->xfer_buflen, flags, from, len); |
| 614 | |
| 615 | if (is_close_msg(io_u, ret)) { |
| 616 | td->done = 1; |
| 617 | return 0; |
| 618 | } |
| 619 | } else { |
| 620 | ret = recv(io_u->file->fd, io_u->xfer_buf, |
| 621 | io_u->xfer_buflen, flags); |
| 622 | |
| 623 | if (is_close_msg(io_u, ret)) { |
| 624 | td->done = 1; |
| 625 | return 0; |
| 626 | } |
| 627 | } |
| 628 | if (ret > 0) |
| 629 | break; |
| 630 | else if (!ret && (flags & MSG_WAITALL)) |
| 631 | break; |
| 632 | |
| 633 | ret = poll_wait(td, io_u->file->fd, POLLIN); |
| 634 | if (ret <= 0) |
| 635 | break; |
| 636 | flags |= MSG_WAITALL; |
| 637 | } while (1); |
| 638 | |
| 639 | if (is_udp(o) && td->o.verify == VERIFY_NONE) |
| 640 | verify_udp_seq(td, nd, io_u); |
| 641 | |
| 642 | return ret; |
| 643 | } |
| 644 | |
| 645 | static enum fio_q_status __fio_netio_queue(struct thread_data *td, |
| 646 | struct io_u *io_u, |
| 647 | enum fio_ddir ddir) |
| 648 | { |
| 649 | struct netio_data *nd = td->io_ops_data; |
| 650 | struct netio_options *o = td->eo; |
| 651 | int ret; |
| 652 | |
| 653 | if (ddir == DDIR_WRITE) { |
| 654 | if (!nd->use_splice || is_udp(o) || |
| 655 | o->proto == FIO_TYPE_UNIX) |
| 656 | ret = fio_netio_send(td, io_u); |
| 657 | else |
| 658 | ret = fio_netio_splice_out(td, io_u); |
| 659 | } else if (ddir == DDIR_READ) { |
| 660 | if (!nd->use_splice || is_udp(o) || |
| 661 | o->proto == FIO_TYPE_UNIX) |
| 662 | ret = fio_netio_recv(td, io_u); |
| 663 | else |
| 664 | ret = fio_netio_splice_in(td, io_u); |
| 665 | } else |
| 666 | ret = 0; /* must be a SYNC */ |
| 667 | |
| 668 | if (ret != (int) io_u->xfer_buflen) { |
| 669 | if (ret > 0) { |
| 670 | io_u->resid = io_u->xfer_buflen - ret; |
| 671 | io_u->error = 0; |
| 672 | return FIO_Q_COMPLETED; |
| 673 | } else if (!ret) |
| 674 | return FIO_Q_BUSY; |
| 675 | else { |
| 676 | int err = errno; |
| 677 | |
| 678 | if (ddir == DDIR_WRITE && err == EMSGSIZE) |
| 679 | return FIO_Q_BUSY; |
| 680 | |
| 681 | io_u->error = err; |
| 682 | } |
| 683 | } |
| 684 | |
| 685 | if (io_u->error) |
| 686 | td_verror(td, io_u->error, "xfer"); |
| 687 | |
| 688 | return FIO_Q_COMPLETED; |
| 689 | } |
| 690 | |
| 691 | static enum fio_q_status fio_netio_queue(struct thread_data *td, |
| 692 | struct io_u *io_u) |
| 693 | { |
| 694 | struct netio_options *o = td->eo; |
| 695 | int ret; |
| 696 | |
| 697 | fio_ro_check(td, io_u); |
| 698 | |
| 699 | ret = __fio_netio_queue(td, io_u, io_u->ddir); |
| 700 | if (!o->pingpong || ret != FIO_Q_COMPLETED) |
| 701 | return ret; |
| 702 | |
| 703 | /* |
| 704 | * For ping-pong mode, receive or send reply as needed |
| 705 | */ |
| 706 | if (td_read(td) && io_u->ddir == DDIR_READ) |
| 707 | ret = __fio_netio_queue(td, io_u, DDIR_WRITE); |
| 708 | else if (td_write(td) && io_u->ddir == DDIR_WRITE) |
| 709 | ret = __fio_netio_queue(td, io_u, DDIR_READ); |
| 710 | |
| 711 | return ret; |
| 712 | } |
| 713 | |
| 714 | static int fio_netio_connect(struct thread_data *td, struct fio_file *f) |
| 715 | { |
| 716 | struct netio_data *nd = td->io_ops_data; |
| 717 | struct netio_options *o = td->eo; |
| 718 | int type, domain; |
| 719 | |
| 720 | if (o->proto == FIO_TYPE_TCP) { |
| 721 | domain = AF_INET; |
| 722 | type = SOCK_STREAM; |
| 723 | } else if (o->proto == FIO_TYPE_TCP_V6) { |
| 724 | domain = AF_INET6; |
| 725 | type = SOCK_STREAM; |
| 726 | } else if (o->proto == FIO_TYPE_UDP) { |
| 727 | domain = AF_INET; |
| 728 | type = SOCK_DGRAM; |
| 729 | } else if (o->proto == FIO_TYPE_UDP_V6) { |
| 730 | domain = AF_INET6; |
| 731 | type = SOCK_DGRAM; |
| 732 | } else if (o->proto == FIO_TYPE_UNIX) { |
| 733 | domain = AF_UNIX; |
| 734 | type = SOCK_STREAM; |
| 735 | } else { |
| 736 | log_err("fio: bad network type %d\n", o->proto); |
| 737 | f->fd = -1; |
| 738 | return 1; |
| 739 | } |
| 740 | |
| 741 | f->fd = socket(domain, type, 0); |
| 742 | if (f->fd < 0) { |
| 743 | td_verror(td, errno, "socket"); |
| 744 | return 1; |
| 745 | } |
| 746 | |
| 747 | #ifdef CONFIG_TCP_NODELAY |
| 748 | if (o->nodelay && is_tcp(o)) { |
| 749 | int optval = 1; |
| 750 | |
| 751 | if (setsockopt(f->fd, IPPROTO_TCP, TCP_NODELAY, (void *) &optval, sizeof(int)) < 0) { |
| 752 | log_err("fio: cannot set TCP_NODELAY option on socket (%s), disable with 'nodelay=0'\n", strerror(errno)); |
| 753 | return 1; |
| 754 | } |
| 755 | } |
| 756 | #endif |
| 757 | |
| 758 | if (set_window_size(td, f->fd)) { |
| 759 | close(f->fd); |
| 760 | return 1; |
| 761 | } |
| 762 | if (set_mss(td, f->fd)) { |
| 763 | close(f->fd); |
| 764 | return 1; |
| 765 | } |
| 766 | |
| 767 | if (is_udp(o)) { |
| 768 | if (!fio_netio_is_multicast(td->o.filename)) |
| 769 | return 0; |
| 770 | if (is_ipv6(o)) { |
| 771 | log_err("fio: multicast not supported on IPv6\n"); |
| 772 | close(f->fd); |
| 773 | return 1; |
| 774 | } |
| 775 | |
| 776 | if (o->intfc) { |
| 777 | struct in_addr interface_addr; |
| 778 | |
| 779 | if (inet_aton(o->intfc, &interface_addr) == 0) { |
| 780 | log_err("fio: interface not valid interface IP\n"); |
| 781 | close(f->fd); |
| 782 | return 1; |
| 783 | } |
| 784 | if (setsockopt(f->fd, IPPROTO_IP, IP_MULTICAST_IF, (const char*)&interface_addr, sizeof(interface_addr)) < 0) { |
| 785 | td_verror(td, errno, "setsockopt IP_MULTICAST_IF"); |
| 786 | close(f->fd); |
| 787 | return 1; |
| 788 | } |
| 789 | } |
| 790 | if (setsockopt(f->fd, IPPROTO_IP, IP_MULTICAST_TTL, (const char*)&o->ttl, sizeof(o->ttl)) < 0) { |
| 791 | td_verror(td, errno, "setsockopt IP_MULTICAST_TTL"); |
| 792 | close(f->fd); |
| 793 | return 1; |
| 794 | } |
| 795 | return 0; |
| 796 | } else if (o->proto == FIO_TYPE_TCP) { |
| 797 | socklen_t len = sizeof(nd->addr); |
| 798 | |
| 799 | if (connect(f->fd, (struct sockaddr *) &nd->addr, len) < 0) { |
| 800 | td_verror(td, errno, "connect"); |
| 801 | close(f->fd); |
| 802 | return 1; |
| 803 | } |
| 804 | } else if (o->proto == FIO_TYPE_TCP_V6) { |
| 805 | socklen_t len = sizeof(nd->addr6); |
| 806 | |
| 807 | if (connect(f->fd, (struct sockaddr *) &nd->addr6, len) < 0) { |
| 808 | td_verror(td, errno, "connect"); |
| 809 | close(f->fd); |
| 810 | return 1; |
| 811 | } |
| 812 | |
| 813 | } else { |
| 814 | struct sockaddr_un *addr = &nd->addr_un; |
| 815 | socklen_t len; |
| 816 | |
| 817 | len = sizeof(addr->sun_family) + strlen(addr->sun_path) + 1; |
| 818 | |
| 819 | if (connect(f->fd, (struct sockaddr *) addr, len) < 0) { |
| 820 | td_verror(td, errno, "connect"); |
| 821 | close(f->fd); |
| 822 | return 1; |
| 823 | } |
| 824 | } |
| 825 | |
| 826 | return 0; |
| 827 | } |
| 828 | |
| 829 | static int fio_netio_accept(struct thread_data *td, struct fio_file *f) |
| 830 | { |
| 831 | struct netio_data *nd = td->io_ops_data; |
| 832 | struct netio_options *o = td->eo; |
| 833 | socklen_t socklen; |
| 834 | int state; |
| 835 | |
| 836 | if (is_udp(o)) { |
| 837 | f->fd = nd->listenfd; |
| 838 | return 0; |
| 839 | } |
| 840 | |
| 841 | state = td->runstate; |
| 842 | td_set_runstate(td, TD_SETTING_UP); |
| 843 | |
| 844 | log_info("fio: waiting for connection\n"); |
| 845 | |
| 846 | if (poll_wait(td, nd->listenfd, POLLIN) < 0) |
| 847 | goto err; |
| 848 | |
| 849 | if (o->proto == FIO_TYPE_TCP) { |
| 850 | socklen = sizeof(nd->addr); |
| 851 | f->fd = accept(nd->listenfd, (struct sockaddr *) &nd->addr, &socklen); |
| 852 | } else { |
| 853 | socklen = sizeof(nd->addr6); |
| 854 | f->fd = accept(nd->listenfd, (struct sockaddr *) &nd->addr6, &socklen); |
| 855 | } |
| 856 | |
| 857 | if (f->fd < 0) { |
| 858 | td_verror(td, errno, "accept"); |
| 859 | goto err; |
| 860 | } |
| 861 | |
| 862 | #ifdef CONFIG_TCP_NODELAY |
| 863 | if (o->nodelay && is_tcp(o)) { |
| 864 | int optval = 1; |
| 865 | |
| 866 | if (setsockopt(f->fd, IPPROTO_TCP, TCP_NODELAY, (void *) &optval, sizeof(int)) < 0) { |
| 867 | log_err("fio: cannot set TCP_NODELAY option on socket (%s), disable with 'nodelay=0'\n", strerror(errno)); |
| 868 | return 1; |
| 869 | } |
| 870 | } |
| 871 | #endif |
| 872 | |
| 873 | reset_all_stats(td); |
| 874 | td_set_runstate(td, state); |
| 875 | return 0; |
| 876 | err: |
| 877 | td_set_runstate(td, state); |
| 878 | return 1; |
| 879 | } |
| 880 | |
| 881 | static void fio_netio_send_close(struct thread_data *td, struct fio_file *f) |
| 882 | { |
| 883 | struct netio_data *nd = td->io_ops_data; |
| 884 | struct netio_options *o = td->eo; |
| 885 | struct udp_close_msg msg; |
| 886 | struct sockaddr *to; |
| 887 | socklen_t len; |
| 888 | int ret; |
| 889 | |
| 890 | if (is_ipv6(o)) { |
| 891 | to = (struct sockaddr *) &nd->addr6; |
| 892 | len = sizeof(nd->addr6); |
| 893 | } else { |
| 894 | to = (struct sockaddr *) &nd->addr; |
| 895 | len = sizeof(nd->addr); |
| 896 | } |
| 897 | |
| 898 | msg.magic = cpu_to_le32((uint32_t) FIO_LINK_OPEN_CLOSE_MAGIC); |
| 899 | msg.cmd = cpu_to_le32((uint32_t) FIO_LINK_CLOSE); |
| 900 | |
| 901 | ret = sendto(f->fd, (void *) &msg, sizeof(msg), MSG_WAITALL, to, len); |
| 902 | if (ret < 0) |
| 903 | td_verror(td, errno, "sendto udp link close"); |
| 904 | } |
| 905 | |
| 906 | static int fio_netio_close_file(struct thread_data *td, struct fio_file *f) |
| 907 | { |
| 908 | /* |
| 909 | * Notify the receiver that we are closing down the link |
| 910 | */ |
| 911 | fio_netio_send_close(td, f); |
| 912 | |
| 913 | return generic_close_file(td, f); |
| 914 | } |
| 915 | |
| 916 | static int fio_netio_udp_recv_open(struct thread_data *td, struct fio_file *f) |
| 917 | { |
| 918 | struct netio_data *nd = td->io_ops_data; |
| 919 | struct netio_options *o = td->eo; |
| 920 | struct udp_close_msg msg; |
| 921 | struct sockaddr *to; |
| 922 | socklen_t len; |
| 923 | int ret; |
| 924 | |
| 925 | if (is_ipv6(o)) { |
| 926 | len = sizeof(nd->addr6); |
| 927 | to = (struct sockaddr *) &nd->addr6; |
| 928 | } else { |
| 929 | len = sizeof(nd->addr); |
| 930 | to = (struct sockaddr *) &nd->addr; |
| 931 | } |
| 932 | |
| 933 | ret = recvfrom(f->fd, (void *) &msg, sizeof(msg), MSG_WAITALL, to, &len); |
| 934 | if (ret < 0) { |
| 935 | td_verror(td, errno, "recvfrom udp link open"); |
| 936 | return ret; |
| 937 | } |
| 938 | |
| 939 | if (ntohl(msg.magic) != FIO_LINK_OPEN_CLOSE_MAGIC || |
| 940 | ntohl(msg.cmd) != FIO_LINK_OPEN) { |
| 941 | log_err("fio: bad udp open magic %x/%x\n", ntohl(msg.magic), |
| 942 | ntohl(msg.cmd)); |
| 943 | return -1; |
| 944 | } |
| 945 | |
| 946 | fio_gettime(&td->start, NULL); |
| 947 | return 0; |
| 948 | } |
| 949 | |
| 950 | static int fio_netio_send_open(struct thread_data *td, struct fio_file *f) |
| 951 | { |
| 952 | struct netio_data *nd = td->io_ops_data; |
| 953 | struct netio_options *o = td->eo; |
| 954 | struct udp_close_msg msg; |
| 955 | struct sockaddr *to; |
| 956 | socklen_t len; |
| 957 | int ret; |
| 958 | |
| 959 | if (is_ipv6(o)) { |
| 960 | len = sizeof(nd->addr6); |
| 961 | to = (struct sockaddr *) &nd->addr6; |
| 962 | } else { |
| 963 | len = sizeof(nd->addr); |
| 964 | to = (struct sockaddr *) &nd->addr; |
| 965 | } |
| 966 | |
| 967 | msg.magic = htonl(FIO_LINK_OPEN_CLOSE_MAGIC); |
| 968 | msg.cmd = htonl(FIO_LINK_OPEN); |
| 969 | |
| 970 | ret = sendto(f->fd, (void *) &msg, sizeof(msg), MSG_WAITALL, to, len); |
| 971 | if (ret < 0) { |
| 972 | td_verror(td, errno, "sendto udp link open"); |
| 973 | return ret; |
| 974 | } |
| 975 | |
| 976 | return 0; |
| 977 | } |
| 978 | |
| 979 | static int fio_netio_open_file(struct thread_data *td, struct fio_file *f) |
| 980 | { |
| 981 | int ret; |
| 982 | struct netio_options *o = td->eo; |
| 983 | |
| 984 | if (o->listen) |
| 985 | ret = fio_netio_accept(td, f); |
| 986 | else |
| 987 | ret = fio_netio_connect(td, f); |
| 988 | |
| 989 | if (ret) { |
| 990 | f->fd = -1; |
| 991 | return ret; |
| 992 | } |
| 993 | |
| 994 | if (is_udp(o)) { |
| 995 | if (td_write(td)) |
| 996 | ret = fio_netio_send_open(td, f); |
| 997 | else { |
| 998 | int state; |
| 999 | |
| 1000 | state = td->runstate; |
| 1001 | td_set_runstate(td, TD_SETTING_UP); |
| 1002 | ret = fio_netio_udp_recv_open(td, f); |
| 1003 | td_set_runstate(td, state); |
| 1004 | } |
| 1005 | } |
| 1006 | |
| 1007 | if (ret) |
| 1008 | fio_netio_close_file(td, f); |
| 1009 | |
| 1010 | return ret; |
| 1011 | } |
| 1012 | |
| 1013 | static int fio_fill_addr(struct thread_data *td, const char *host, int af, |
| 1014 | void *dst, struct addrinfo **res) |
| 1015 | { |
| 1016 | struct netio_options *o = td->eo; |
| 1017 | struct addrinfo hints; |
| 1018 | int ret; |
| 1019 | |
| 1020 | if (inet_pton(af, host, dst)) |
| 1021 | return 0; |
| 1022 | |
| 1023 | memset(&hints, 0, sizeof(hints)); |
| 1024 | |
| 1025 | if (is_tcp(o)) |
| 1026 | hints.ai_socktype = SOCK_STREAM; |
| 1027 | else |
| 1028 | hints.ai_socktype = SOCK_DGRAM; |
| 1029 | |
| 1030 | if (is_ipv6(o)) |
| 1031 | hints.ai_family = AF_INET6; |
| 1032 | else |
| 1033 | hints.ai_family = AF_INET; |
| 1034 | |
| 1035 | ret = getaddrinfo(host, NULL, &hints, res); |
| 1036 | if (ret) { |
| 1037 | int e = EINVAL; |
| 1038 | char str[128]; |
| 1039 | |
| 1040 | if (ret == EAI_SYSTEM) |
| 1041 | e = errno; |
| 1042 | |
| 1043 | snprintf(str, sizeof(str), "getaddrinfo: %s", gai_strerror(ret)); |
| 1044 | td_verror(td, e, str); |
| 1045 | return 1; |
| 1046 | } |
| 1047 | |
| 1048 | return 0; |
| 1049 | } |
| 1050 | |
| 1051 | static int fio_netio_setup_connect_inet(struct thread_data *td, |
| 1052 | const char *host, unsigned short port) |
| 1053 | { |
| 1054 | struct netio_data *nd = td->io_ops_data; |
| 1055 | struct netio_options *o = td->eo; |
| 1056 | struct addrinfo *res = NULL; |
| 1057 | void *dst, *src; |
| 1058 | int af, len; |
| 1059 | |
| 1060 | if (!host) { |
| 1061 | log_err("fio: connect with no host to connect to.\n"); |
| 1062 | if (td_read(td)) |
| 1063 | log_err("fio: did you forget to set 'listen'?\n"); |
| 1064 | |
| 1065 | td_verror(td, EINVAL, "no hostname= set"); |
| 1066 | return 1; |
| 1067 | } |
| 1068 | |
| 1069 | nd->addr.sin_family = AF_INET; |
| 1070 | nd->addr.sin_port = htons(port); |
| 1071 | nd->addr6.sin6_family = AF_INET6; |
| 1072 | nd->addr6.sin6_port = htons(port); |
| 1073 | |
| 1074 | if (is_ipv6(o)) { |
| 1075 | af = AF_INET6; |
| 1076 | dst = &nd->addr6.sin6_addr; |
| 1077 | } else { |
| 1078 | af = AF_INET; |
| 1079 | dst = &nd->addr.sin_addr; |
| 1080 | } |
| 1081 | |
| 1082 | if (fio_fill_addr(td, host, af, dst, &res)) |
| 1083 | return 1; |
| 1084 | |
| 1085 | if (!res) |
| 1086 | return 0; |
| 1087 | |
| 1088 | if (is_ipv6(o)) { |
| 1089 | len = sizeof(nd->addr6.sin6_addr); |
| 1090 | src = &((struct sockaddr_in6 *) res->ai_addr)->sin6_addr; |
| 1091 | } else { |
| 1092 | len = sizeof(nd->addr.sin_addr); |
| 1093 | src = &((struct sockaddr_in *) res->ai_addr)->sin_addr; |
| 1094 | } |
| 1095 | |
| 1096 | memcpy(dst, src, len); |
| 1097 | freeaddrinfo(res); |
| 1098 | return 0; |
| 1099 | } |
| 1100 | |
| 1101 | static int fio_netio_setup_connect_unix(struct thread_data *td, |
| 1102 | const char *path) |
| 1103 | { |
| 1104 | struct netio_data *nd = td->io_ops_data; |
| 1105 | struct sockaddr_un *soun = &nd->addr_un; |
| 1106 | |
| 1107 | soun->sun_family = AF_UNIX; |
| 1108 | memset(soun->sun_path, 0, sizeof(soun->sun_path)); |
| 1109 | strncpy(soun->sun_path, path, sizeof(soun->sun_path) - 1); |
| 1110 | return 0; |
| 1111 | } |
| 1112 | |
| 1113 | static int fio_netio_setup_connect(struct thread_data *td) |
| 1114 | { |
| 1115 | struct netio_options *o = td->eo; |
| 1116 | |
| 1117 | if (is_udp(o) || is_tcp(o)) |
| 1118 | return fio_netio_setup_connect_inet(td, td->o.filename,o->port); |
| 1119 | else |
| 1120 | return fio_netio_setup_connect_unix(td, td->o.filename); |
| 1121 | } |
| 1122 | |
| 1123 | static int fio_netio_setup_listen_unix(struct thread_data *td, const char *path) |
| 1124 | { |
| 1125 | struct netio_data *nd = td->io_ops_data; |
| 1126 | struct sockaddr_un *addr = &nd->addr_un; |
| 1127 | mode_t mode; |
| 1128 | int len, fd; |
| 1129 | |
| 1130 | fd = socket(AF_UNIX, SOCK_STREAM, 0); |
| 1131 | if (fd < 0) { |
| 1132 | log_err("fio: socket: %s\n", strerror(errno)); |
| 1133 | return -1; |
| 1134 | } |
| 1135 | |
| 1136 | mode = umask(000); |
| 1137 | |
| 1138 | memset(addr, 0, sizeof(*addr)); |
| 1139 | addr->sun_family = AF_UNIX; |
| 1140 | strncpy(addr->sun_path, path, sizeof(addr->sun_path) - 1); |
| 1141 | unlink(path); |
| 1142 | |
| 1143 | len = sizeof(addr->sun_family) + strlen(path) + 1; |
| 1144 | |
| 1145 | if (bind(fd, (struct sockaddr *) addr, len) < 0) { |
| 1146 | log_err("fio: bind: %s\n", strerror(errno)); |
| 1147 | close(fd); |
| 1148 | return -1; |
| 1149 | } |
| 1150 | |
| 1151 | umask(mode); |
| 1152 | nd->listenfd = fd; |
| 1153 | return 0; |
| 1154 | } |
| 1155 | |
| 1156 | static int fio_netio_setup_listen_inet(struct thread_data *td, short port) |
| 1157 | { |
| 1158 | struct netio_data *nd = td->io_ops_data; |
| 1159 | struct netio_options *o = td->eo; |
| 1160 | struct ip_mreq mr; |
| 1161 | struct sockaddr_in sin; |
| 1162 | struct sockaddr *saddr; |
| 1163 | int fd, opt, type, domain; |
| 1164 | socklen_t len; |
| 1165 | |
| 1166 | memset(&sin, 0, sizeof(sin)); |
| 1167 | |
| 1168 | if (o->proto == FIO_TYPE_TCP) { |
| 1169 | type = SOCK_STREAM; |
| 1170 | domain = AF_INET; |
| 1171 | } else if (o->proto == FIO_TYPE_TCP_V6) { |
| 1172 | type = SOCK_STREAM; |
| 1173 | domain = AF_INET6; |
| 1174 | } else if (o->proto == FIO_TYPE_UDP) { |
| 1175 | type = SOCK_DGRAM; |
| 1176 | domain = AF_INET; |
| 1177 | } else if (o->proto == FIO_TYPE_UDP_V6) { |
| 1178 | type = SOCK_DGRAM; |
| 1179 | domain = AF_INET6; |
| 1180 | } else { |
| 1181 | log_err("fio: unknown proto %d\n", o->proto); |
| 1182 | return 1; |
| 1183 | } |
| 1184 | |
| 1185 | fd = socket(domain, type, 0); |
| 1186 | if (fd < 0) { |
| 1187 | td_verror(td, errno, "socket"); |
| 1188 | return 1; |
| 1189 | } |
| 1190 | |
| 1191 | opt = 1; |
| 1192 | if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (void *) &opt, sizeof(opt)) < 0) { |
| 1193 | td_verror(td, errno, "setsockopt"); |
| 1194 | close(fd); |
| 1195 | return 1; |
| 1196 | } |
| 1197 | #ifdef SO_REUSEPORT |
| 1198 | if (setsockopt(fd, SOL_SOCKET, SO_REUSEPORT, (void *) &opt, sizeof(opt)) < 0) { |
| 1199 | td_verror(td, errno, "setsockopt"); |
| 1200 | close(fd); |
| 1201 | return 1; |
| 1202 | } |
| 1203 | #endif |
| 1204 | |
| 1205 | if (set_window_size(td, fd)) { |
| 1206 | close(fd); |
| 1207 | return 1; |
| 1208 | } |
| 1209 | if (set_mss(td, fd)) { |
| 1210 | close(fd); |
| 1211 | return 1; |
| 1212 | } |
| 1213 | |
| 1214 | if (td->o.filename) { |
| 1215 | if (!is_udp(o) || !fio_netio_is_multicast(td->o.filename)) { |
| 1216 | log_err("fio: hostname not valid for non-multicast inbound network IO\n"); |
| 1217 | close(fd); |
| 1218 | return 1; |
| 1219 | } |
| 1220 | if (is_ipv6(o)) { |
| 1221 | log_err("fio: IPv6 not supported for multicast network IO\n"); |
| 1222 | close(fd); |
| 1223 | return 1; |
| 1224 | } |
| 1225 | |
| 1226 | inet_aton(td->o.filename, &sin.sin_addr); |
| 1227 | |
| 1228 | mr.imr_multiaddr = sin.sin_addr; |
| 1229 | if (o->intfc) { |
| 1230 | if (inet_aton(o->intfc, &mr.imr_interface) == 0) { |
| 1231 | log_err("fio: interface not valid interface IP\n"); |
| 1232 | close(fd); |
| 1233 | return 1; |
| 1234 | } |
| 1235 | } else { |
| 1236 | mr.imr_interface.s_addr = htonl(INADDR_ANY); |
| 1237 | } |
| 1238 | |
| 1239 | if (setsockopt(fd, IPPROTO_IP, IP_ADD_MEMBERSHIP, (const char*)&mr, sizeof(mr)) < 0) { |
| 1240 | td_verror(td, errno, "setsockopt IP_ADD_MEMBERSHIP"); |
| 1241 | close(fd); |
| 1242 | return 1; |
| 1243 | } |
| 1244 | } |
| 1245 | |
| 1246 | if (!is_ipv6(o)) { |
| 1247 | saddr = (struct sockaddr *) &nd->addr; |
| 1248 | len = sizeof(nd->addr); |
| 1249 | |
| 1250 | nd->addr.sin_family = AF_INET; |
| 1251 | nd->addr.sin_addr.s_addr = sin.sin_addr.s_addr ? sin.sin_addr.s_addr : htonl(INADDR_ANY); |
| 1252 | nd->addr.sin_port = htons(port); |
| 1253 | } else { |
| 1254 | saddr = (struct sockaddr *) &nd->addr6; |
| 1255 | len = sizeof(nd->addr6); |
| 1256 | |
| 1257 | nd->addr6.sin6_family = AF_INET6; |
| 1258 | nd->addr6.sin6_addr = in6addr_any; |
| 1259 | nd->addr6.sin6_port = htons(port); |
| 1260 | } |
| 1261 | |
| 1262 | if (bind(fd, saddr, len) < 0) { |
| 1263 | close(fd); |
| 1264 | td_verror(td, errno, "bind"); |
| 1265 | return 1; |
| 1266 | } |
| 1267 | |
| 1268 | nd->listenfd = fd; |
| 1269 | return 0; |
| 1270 | } |
| 1271 | |
| 1272 | static int fio_netio_setup_listen(struct thread_data *td) |
| 1273 | { |
| 1274 | struct netio_data *nd = td->io_ops_data; |
| 1275 | struct netio_options *o = td->eo; |
| 1276 | int ret; |
| 1277 | |
| 1278 | if (is_udp(o) || is_tcp(o)) |
| 1279 | ret = fio_netio_setup_listen_inet(td, o->port); |
| 1280 | else |
| 1281 | ret = fio_netio_setup_listen_unix(td, td->o.filename); |
| 1282 | |
| 1283 | if (ret) |
| 1284 | return ret; |
| 1285 | if (is_udp(o)) |
| 1286 | return 0; |
| 1287 | |
| 1288 | if (listen(nd->listenfd, 10) < 0) { |
| 1289 | td_verror(td, errno, "listen"); |
| 1290 | nd->listenfd = -1; |
| 1291 | return 1; |
| 1292 | } |
| 1293 | |
| 1294 | return 0; |
| 1295 | } |
| 1296 | |
| 1297 | static int fio_netio_init(struct thread_data *td) |
| 1298 | { |
| 1299 | struct netio_options *o = td->eo; |
| 1300 | int ret; |
| 1301 | |
| 1302 | #ifdef WIN32 |
| 1303 | WSADATA wsd; |
| 1304 | WSAStartup(MAKEWORD(2,2), &wsd); |
| 1305 | #endif |
| 1306 | |
| 1307 | if (td_random(td)) { |
| 1308 | log_err("fio: network IO can't be random\n"); |
| 1309 | return 1; |
| 1310 | } |
| 1311 | |
| 1312 | if (o->proto == FIO_TYPE_UNIX && o->port) { |
| 1313 | log_err("fio: network IO port not valid with unix socket\n"); |
| 1314 | return 1; |
| 1315 | } else if (o->proto != FIO_TYPE_UNIX && !o->port) { |
| 1316 | log_err("fio: network IO requires port for tcp or udp\n"); |
| 1317 | return 1; |
| 1318 | } |
| 1319 | |
| 1320 | o->port += td->subjob_number; |
| 1321 | |
| 1322 | if (!is_tcp(o)) { |
| 1323 | if (o->listen) { |
| 1324 | log_err("fio: listen only valid for TCP proto IO\n"); |
| 1325 | return 1; |
| 1326 | } |
| 1327 | if (td_rw(td)) { |
| 1328 | log_err("fio: datagram network connections must be" |
| 1329 | " read OR write\n"); |
| 1330 | return 1; |
| 1331 | } |
| 1332 | if (o->proto == FIO_TYPE_UNIX && !td->o.filename) { |
| 1333 | log_err("fio: UNIX sockets need host/filename\n"); |
| 1334 | return 1; |
| 1335 | } |
| 1336 | o->listen = td_read(td); |
| 1337 | } |
| 1338 | |
| 1339 | if (o->listen) |
| 1340 | ret = fio_netio_setup_listen(td); |
| 1341 | else |
| 1342 | ret = fio_netio_setup_connect(td); |
| 1343 | |
| 1344 | return ret; |
| 1345 | } |
| 1346 | |
| 1347 | static void fio_netio_cleanup(struct thread_data *td) |
| 1348 | { |
| 1349 | struct netio_data *nd = td->io_ops_data; |
| 1350 | |
| 1351 | if (nd) { |
| 1352 | if (nd->listenfd != -1) |
| 1353 | close(nd->listenfd); |
| 1354 | if (nd->pipes[0] != -1) |
| 1355 | close(nd->pipes[0]); |
| 1356 | if (nd->pipes[1] != -1) |
| 1357 | close(nd->pipes[1]); |
| 1358 | |
| 1359 | free(nd); |
| 1360 | } |
| 1361 | } |
| 1362 | |
| 1363 | static int fio_netio_setup(struct thread_data *td) |
| 1364 | { |
| 1365 | struct netio_data *nd; |
| 1366 | |
| 1367 | if (!td->files_index) { |
| 1368 | add_file(td, td->o.filename ?: "net", 0, 0); |
| 1369 | td->o.nr_files = td->o.nr_files ?: 1; |
| 1370 | td->o.open_files++; |
| 1371 | } |
| 1372 | |
| 1373 | if (!td->io_ops_data) { |
| 1374 | nd = malloc(sizeof(*nd)); |
| 1375 | |
| 1376 | memset(nd, 0, sizeof(*nd)); |
| 1377 | nd->listenfd = -1; |
| 1378 | nd->pipes[0] = nd->pipes[1] = -1; |
| 1379 | td->io_ops_data = nd; |
| 1380 | } |
| 1381 | |
| 1382 | return 0; |
| 1383 | } |
| 1384 | |
| 1385 | static void fio_netio_terminate(struct thread_data *td) |
| 1386 | { |
| 1387 | kill(td->pid, SIGTERM); |
| 1388 | } |
| 1389 | |
| 1390 | #ifdef CONFIG_LINUX_SPLICE |
| 1391 | static int fio_netio_setup_splice(struct thread_data *td) |
| 1392 | { |
| 1393 | struct netio_data *nd; |
| 1394 | |
| 1395 | fio_netio_setup(td); |
| 1396 | |
| 1397 | nd = td->io_ops_data; |
| 1398 | if (nd) { |
| 1399 | if (pipe(nd->pipes) < 0) |
| 1400 | return 1; |
| 1401 | |
| 1402 | nd->use_splice = 1; |
| 1403 | return 0; |
| 1404 | } |
| 1405 | |
| 1406 | return 1; |
| 1407 | } |
| 1408 | |
| 1409 | static struct ioengine_ops ioengine_splice = { |
| 1410 | .name = "netsplice", |
| 1411 | .version = FIO_IOOPS_VERSION, |
| 1412 | .prep = fio_netio_prep, |
| 1413 | .queue = fio_netio_queue, |
| 1414 | .setup = fio_netio_setup_splice, |
| 1415 | .init = fio_netio_init, |
| 1416 | .cleanup = fio_netio_cleanup, |
| 1417 | .open_file = fio_netio_open_file, |
| 1418 | .close_file = fio_netio_close_file, |
| 1419 | .terminate = fio_netio_terminate, |
| 1420 | .options = options, |
| 1421 | .option_struct_size = sizeof(struct netio_options), |
| 1422 | .flags = FIO_SYNCIO | FIO_DISKLESSIO | FIO_UNIDIR | |
| 1423 | FIO_PIPEIO, |
| 1424 | }; |
| 1425 | #endif |
| 1426 | |
| 1427 | static struct ioengine_ops ioengine_rw = { |
| 1428 | .name = "net", |
| 1429 | .version = FIO_IOOPS_VERSION, |
| 1430 | .prep = fio_netio_prep, |
| 1431 | .queue = fio_netio_queue, |
| 1432 | .setup = fio_netio_setup, |
| 1433 | .init = fio_netio_init, |
| 1434 | .cleanup = fio_netio_cleanup, |
| 1435 | .open_file = fio_netio_open_file, |
| 1436 | .close_file = fio_netio_close_file, |
| 1437 | .terminate = fio_netio_terminate, |
| 1438 | .options = options, |
| 1439 | .option_struct_size = sizeof(struct netio_options), |
| 1440 | .flags = FIO_SYNCIO | FIO_DISKLESSIO | FIO_UNIDIR | |
| 1441 | FIO_PIPEIO | FIO_BIT_BASED, |
| 1442 | }; |
| 1443 | |
| 1444 | static int str_hostname_cb(void *data, const char *input) |
| 1445 | { |
| 1446 | struct netio_options *o = data; |
| 1447 | |
| 1448 | if (o->td->o.filename) |
| 1449 | free(o->td->o.filename); |
| 1450 | o->td->o.filename = strdup(input); |
| 1451 | return 0; |
| 1452 | } |
| 1453 | |
| 1454 | static void fio_init fio_netio_register(void) |
| 1455 | { |
| 1456 | register_ioengine(&ioengine_rw); |
| 1457 | #ifdef CONFIG_LINUX_SPLICE |
| 1458 | register_ioengine(&ioengine_splice); |
| 1459 | #endif |
| 1460 | } |
| 1461 | |
| 1462 | static void fio_exit fio_netio_unregister(void) |
| 1463 | { |
| 1464 | unregister_ioengine(&ioengine_rw); |
| 1465 | #ifdef CONFIG_LINUX_SPLICE |
| 1466 | unregister_ioengine(&ioengine_splice); |
| 1467 | #endif |
| 1468 | } |