| 1 | #include <stdio.h> |
| 2 | #include <stdlib.h> |
| 3 | #include <stdarg.h> |
| 4 | #include <unistd.h> |
| 5 | #include <limits.h> |
| 6 | #include <errno.h> |
| 7 | #include <fcntl.h> |
| 8 | #include <sys/poll.h> |
| 9 | #include <sys/types.h> |
| 10 | #include <sys/wait.h> |
| 11 | #include <sys/socket.h> |
| 12 | #include <sys/stat.h> |
| 13 | #include <sys/un.h> |
| 14 | #include <netinet/in.h> |
| 15 | #include <arpa/inet.h> |
| 16 | #include <netdb.h> |
| 17 | #include <syslog.h> |
| 18 | #include <signal.h> |
| 19 | |
| 20 | #include "fio.h" |
| 21 | #include "server.h" |
| 22 | #include "crc/crc16.h" |
| 23 | #include "ieee754.h" |
| 24 | |
| 25 | #include "fio_version.h" |
| 26 | |
| 27 | int fio_net_port = 8765; |
| 28 | |
| 29 | int exit_backend = 0; |
| 30 | |
| 31 | static int server_fd = -1; |
| 32 | static char *fio_server_arg; |
| 33 | static char *bind_sock; |
| 34 | static struct sockaddr_in saddr_in; |
| 35 | |
| 36 | int fio_send_data(int sk, const void *p, unsigned int len) |
| 37 | { |
| 38 | assert(len <= sizeof(struct fio_net_cmd) + FIO_SERVER_MAX_PDU); |
| 39 | |
| 40 | do { |
| 41 | int ret = send(sk, p, len, 0); |
| 42 | |
| 43 | if (ret > 0) { |
| 44 | len -= ret; |
| 45 | if (!len) |
| 46 | break; |
| 47 | p += ret; |
| 48 | continue; |
| 49 | } else if (!ret) |
| 50 | break; |
| 51 | else if (errno == EAGAIN || errno == EINTR) |
| 52 | continue; |
| 53 | } while (!exit_backend); |
| 54 | |
| 55 | if (!len) |
| 56 | return 0; |
| 57 | |
| 58 | return 1; |
| 59 | } |
| 60 | |
| 61 | int fio_recv_data(int sk, void *p, unsigned int len) |
| 62 | { |
| 63 | do { |
| 64 | int ret = recv(sk, p, len, MSG_WAITALL); |
| 65 | |
| 66 | if (ret > 0) { |
| 67 | len -= ret; |
| 68 | if (!len) |
| 69 | break; |
| 70 | p += ret; |
| 71 | continue; |
| 72 | } else if (!ret) |
| 73 | break; |
| 74 | else if (errno == EAGAIN || errno == EINTR) |
| 75 | continue; |
| 76 | } while (!exit_backend); |
| 77 | |
| 78 | if (!len) |
| 79 | return 0; |
| 80 | |
| 81 | return -1; |
| 82 | } |
| 83 | |
| 84 | static int verify_convert_cmd(struct fio_net_cmd *cmd) |
| 85 | { |
| 86 | uint16_t crc; |
| 87 | |
| 88 | cmd->cmd_crc16 = le16_to_cpu(cmd->cmd_crc16); |
| 89 | cmd->pdu_crc16 = le16_to_cpu(cmd->pdu_crc16); |
| 90 | |
| 91 | crc = crc16(cmd, FIO_NET_CMD_CRC_SZ); |
| 92 | if (crc != cmd->cmd_crc16) { |
| 93 | log_err("fio: server bad crc on command (got %x, wanted %x)\n", |
| 94 | cmd->cmd_crc16, crc); |
| 95 | return 1; |
| 96 | } |
| 97 | |
| 98 | cmd->version = le16_to_cpu(cmd->version); |
| 99 | cmd->opcode = le16_to_cpu(cmd->opcode); |
| 100 | cmd->flags = le32_to_cpu(cmd->flags); |
| 101 | cmd->serial = le64_to_cpu(cmd->serial); |
| 102 | cmd->pdu_len = le32_to_cpu(cmd->pdu_len); |
| 103 | |
| 104 | switch (cmd->version) { |
| 105 | case FIO_SERVER_VER: |
| 106 | break; |
| 107 | default: |
| 108 | log_err("fio: bad server cmd version %d\n", cmd->version); |
| 109 | return 1; |
| 110 | } |
| 111 | |
| 112 | if (cmd->pdu_len > FIO_SERVER_MAX_PDU) { |
| 113 | log_err("fio: command payload too large: %u\n", cmd->pdu_len); |
| 114 | return 1; |
| 115 | } |
| 116 | |
| 117 | return 0; |
| 118 | } |
| 119 | |
| 120 | /* |
| 121 | * Read (and defragment, if necessary) incoming commands |
| 122 | */ |
| 123 | struct fio_net_cmd *fio_net_recv_cmd(int sk) |
| 124 | { |
| 125 | struct fio_net_cmd cmd, *cmdret = NULL; |
| 126 | size_t cmd_size = 0, pdu_offset = 0; |
| 127 | uint16_t crc; |
| 128 | int ret, first = 1; |
| 129 | void *pdu = NULL; |
| 130 | |
| 131 | do { |
| 132 | ret = fio_recv_data(sk, &cmd, sizeof(cmd)); |
| 133 | if (ret) |
| 134 | break; |
| 135 | |
| 136 | /* We have a command, verify it and swap if need be */ |
| 137 | ret = verify_convert_cmd(&cmd); |
| 138 | if (ret) |
| 139 | break; |
| 140 | |
| 141 | if (first) { |
| 142 | /* if this is text, add room for \0 at the end */ |
| 143 | cmd_size = sizeof(cmd) + cmd.pdu_len + 1; |
| 144 | assert(!cmdret); |
| 145 | } else |
| 146 | cmd_size += cmd.pdu_len; |
| 147 | |
| 148 | cmdret = realloc(cmdret, cmd_size); |
| 149 | |
| 150 | if (first) |
| 151 | memcpy(cmdret, &cmd, sizeof(cmd)); |
| 152 | else |
| 153 | assert(cmdret->opcode == cmd.opcode); |
| 154 | |
| 155 | if (!cmd.pdu_len) |
| 156 | break; |
| 157 | |
| 158 | /* There's payload, get it */ |
| 159 | pdu = (void *) cmdret->payload + pdu_offset; |
| 160 | ret = fio_recv_data(sk, pdu, cmd.pdu_len); |
| 161 | if (ret) |
| 162 | break; |
| 163 | |
| 164 | /* Verify payload crc */ |
| 165 | crc = crc16(pdu, cmd.pdu_len); |
| 166 | if (crc != cmd.pdu_crc16) { |
| 167 | log_err("fio: server bad crc on payload "); |
| 168 | log_err("(got %x, wanted %x)\n", cmd.pdu_crc16, crc); |
| 169 | ret = 1; |
| 170 | break; |
| 171 | } |
| 172 | |
| 173 | pdu_offset += cmd.pdu_len; |
| 174 | if (!first) |
| 175 | cmdret->pdu_len += cmd.pdu_len; |
| 176 | first = 0; |
| 177 | } while (cmd.flags & FIO_NET_CMD_F_MORE); |
| 178 | |
| 179 | if (ret) { |
| 180 | free(cmdret); |
| 181 | cmdret = NULL; |
| 182 | } else if (cmdret) { |
| 183 | /* zero-terminate text input */ |
| 184 | if (cmdret->pdu_len && (cmdret->opcode == FIO_NET_CMD_TEXT || |
| 185 | cmdret->opcode == FIO_NET_CMD_JOB)) { |
| 186 | char *buf = (char *) cmdret->payload; |
| 187 | |
| 188 | buf[cmdret->pdu_len ] = '\0'; |
| 189 | } |
| 190 | /* frag flag is internal */ |
| 191 | cmdret->flags &= ~FIO_NET_CMD_F_MORE; |
| 192 | } |
| 193 | |
| 194 | return cmdret; |
| 195 | } |
| 196 | |
| 197 | void fio_net_cmd_crc(struct fio_net_cmd *cmd) |
| 198 | { |
| 199 | uint32_t pdu_len; |
| 200 | |
| 201 | cmd->cmd_crc16 = __cpu_to_le16(crc16(cmd, FIO_NET_CMD_CRC_SZ)); |
| 202 | |
| 203 | pdu_len = le32_to_cpu(cmd->pdu_len); |
| 204 | if (pdu_len) |
| 205 | cmd->pdu_crc16 = __cpu_to_le16(crc16(cmd->payload, pdu_len)); |
| 206 | } |
| 207 | |
| 208 | int fio_net_send_cmd(int fd, uint16_t opcode, const void *buf, off_t size) |
| 209 | { |
| 210 | struct fio_net_cmd *cmd; |
| 211 | size_t this_len; |
| 212 | int ret; |
| 213 | |
| 214 | do { |
| 215 | this_len = size; |
| 216 | if (this_len > FIO_SERVER_MAX_PDU) |
| 217 | this_len = FIO_SERVER_MAX_PDU; |
| 218 | |
| 219 | cmd = malloc(sizeof(*cmd) + this_len); |
| 220 | |
| 221 | fio_init_net_cmd(cmd, opcode, buf, this_len); |
| 222 | |
| 223 | if (this_len < size) |
| 224 | cmd->flags = __cpu_to_le32(FIO_NET_CMD_F_MORE); |
| 225 | |
| 226 | fio_net_cmd_crc(cmd); |
| 227 | |
| 228 | ret = fio_send_data(fd, cmd, sizeof(*cmd) + this_len); |
| 229 | free(cmd); |
| 230 | size -= this_len; |
| 231 | buf += this_len; |
| 232 | } while (!ret && size); |
| 233 | |
| 234 | return ret; |
| 235 | } |
| 236 | |
| 237 | int fio_net_send_simple_cmd(int sk, uint16_t opcode, uint64_t serial) |
| 238 | { |
| 239 | struct fio_net_cmd cmd; |
| 240 | |
| 241 | fio_init_net_cmd(&cmd, opcode, NULL, 0); |
| 242 | fio_net_cmd_crc(&cmd); |
| 243 | |
| 244 | return fio_send_data(sk, &cmd, sizeof(cmd)); |
| 245 | } |
| 246 | |
| 247 | static int fio_server_send_quit_cmd(void) |
| 248 | { |
| 249 | dprint(FD_NET, "server: sending quit\n"); |
| 250 | return fio_net_send_simple_cmd(server_fd, FIO_NET_CMD_QUIT, 0); |
| 251 | } |
| 252 | |
| 253 | static int handle_job_cmd(struct fio_net_cmd *cmd) |
| 254 | { |
| 255 | char *buf = (char *) cmd->payload; |
| 256 | int ret; |
| 257 | |
| 258 | if (parse_jobs_ini(buf, 1, 0)) { |
| 259 | fio_server_send_quit_cmd(); |
| 260 | return -1; |
| 261 | } |
| 262 | |
| 263 | fio_net_send_simple_cmd(server_fd, FIO_NET_CMD_START, 0); |
| 264 | |
| 265 | ret = exec_run(); |
| 266 | fio_server_send_quit_cmd(); |
| 267 | reset_fio_state(); |
| 268 | return ret; |
| 269 | } |
| 270 | |
| 271 | static int handle_jobline_cmd(struct fio_net_cmd *cmd) |
| 272 | { |
| 273 | void *pdu = cmd->payload; |
| 274 | struct cmd_single_line_pdu *cslp; |
| 275 | struct cmd_line_pdu *clp; |
| 276 | unsigned long offset; |
| 277 | char **argv; |
| 278 | int ret, i; |
| 279 | |
| 280 | clp = pdu; |
| 281 | clp->lines = le16_to_cpu(clp->lines); |
| 282 | argv = malloc(clp->lines * sizeof(char *)); |
| 283 | offset = sizeof(*clp); |
| 284 | |
| 285 | dprint(FD_NET, "server: %d command line args\n", clp->lines); |
| 286 | |
| 287 | for (i = 0; i < clp->lines; i++) { |
| 288 | cslp = pdu + offset; |
| 289 | argv[i] = (char *) cslp->text; |
| 290 | |
| 291 | offset += sizeof(*cslp) + le16_to_cpu(cslp->len); |
| 292 | dprint(FD_NET, "server: %d: %s\n", i, argv[i]); |
| 293 | } |
| 294 | |
| 295 | if (parse_cmd_line(clp->lines, argv)) { |
| 296 | fio_server_send_quit_cmd(); |
| 297 | free(argv); |
| 298 | return -1; |
| 299 | } |
| 300 | |
| 301 | free(argv); |
| 302 | |
| 303 | fio_net_send_simple_cmd(server_fd, FIO_NET_CMD_START, 0); |
| 304 | |
| 305 | ret = exec_run(); |
| 306 | fio_server_send_quit_cmd(); |
| 307 | reset_fio_state(); |
| 308 | return ret; |
| 309 | } |
| 310 | |
| 311 | static int handle_probe_cmd(struct fio_net_cmd *cmd) |
| 312 | { |
| 313 | struct cmd_probe_pdu probe; |
| 314 | |
| 315 | memset(&probe, 0, sizeof(probe)); |
| 316 | gethostname((char *) probe.hostname, sizeof(probe.hostname)); |
| 317 | #ifdef FIO_BIG_ENDIAN |
| 318 | probe.bigendian = 1; |
| 319 | #endif |
| 320 | probe.fio_major = FIO_MAJOR; |
| 321 | probe.fio_minor = FIO_MINOR; |
| 322 | probe.fio_patch = FIO_PATCH; |
| 323 | |
| 324 | probe.os = FIO_OS; |
| 325 | probe.arch = FIO_ARCH; |
| 326 | |
| 327 | return fio_net_send_cmd(server_fd, FIO_NET_CMD_PROBE, &probe, sizeof(probe)); |
| 328 | } |
| 329 | |
| 330 | static int handle_command(struct fio_net_cmd *cmd) |
| 331 | { |
| 332 | int ret; |
| 333 | |
| 334 | dprint(FD_NET, "server: got opcode %d\n", cmd->opcode); |
| 335 | |
| 336 | switch (cmd->opcode) { |
| 337 | case FIO_NET_CMD_QUIT: |
| 338 | fio_terminate_threads(TERMINATE_ALL); |
| 339 | return -1; |
| 340 | case FIO_NET_CMD_EXIT: |
| 341 | exit_backend = 1; |
| 342 | return -1; |
| 343 | case FIO_NET_CMD_JOB: |
| 344 | ret = handle_job_cmd(cmd); |
| 345 | break; |
| 346 | case FIO_NET_CMD_JOBLINE: |
| 347 | ret = handle_jobline_cmd(cmd); |
| 348 | break; |
| 349 | case FIO_NET_CMD_PROBE: |
| 350 | ret = handle_probe_cmd(cmd); |
| 351 | break; |
| 352 | default: |
| 353 | log_err("fio: unknown opcode: %d\n", cmd->opcode); |
| 354 | ret = 1; |
| 355 | } |
| 356 | |
| 357 | return ret; |
| 358 | } |
| 359 | |
| 360 | static int handle_connection(int sk, int block) |
| 361 | { |
| 362 | struct fio_net_cmd *cmd = NULL; |
| 363 | int ret = 0; |
| 364 | |
| 365 | /* read forever */ |
| 366 | while (!exit_backend) { |
| 367 | struct pollfd pfd = { |
| 368 | .fd = sk, |
| 369 | .events = POLLIN, |
| 370 | }; |
| 371 | |
| 372 | ret = 0; |
| 373 | do { |
| 374 | ret = poll(&pfd, 1, 100); |
| 375 | if (ret < 0) { |
| 376 | if (errno == EINTR) |
| 377 | break; |
| 378 | log_err("fio: poll: %s\n", strerror(errno)); |
| 379 | break; |
| 380 | } else if (!ret) { |
| 381 | if (!block) |
| 382 | return 0; |
| 383 | continue; |
| 384 | } |
| 385 | |
| 386 | if (pfd.revents & POLLIN) |
| 387 | break; |
| 388 | if (pfd.revents & (POLLERR|POLLHUP)) { |
| 389 | ret = 1; |
| 390 | break; |
| 391 | } |
| 392 | } while (!exit_backend); |
| 393 | |
| 394 | if (ret < 0) |
| 395 | break; |
| 396 | |
| 397 | cmd = fio_net_recv_cmd(sk); |
| 398 | if (!cmd) { |
| 399 | ret = -1; |
| 400 | break; |
| 401 | } |
| 402 | |
| 403 | ret = handle_command(cmd); |
| 404 | if (ret) |
| 405 | break; |
| 406 | |
| 407 | free(cmd); |
| 408 | cmd = NULL; |
| 409 | } |
| 410 | |
| 411 | if (cmd) |
| 412 | free(cmd); |
| 413 | |
| 414 | return ret; |
| 415 | } |
| 416 | |
| 417 | void fio_server_idle_loop(void) |
| 418 | { |
| 419 | if (server_fd != -1) |
| 420 | handle_connection(server_fd, 0); |
| 421 | } |
| 422 | |
| 423 | static int accept_loop(int listen_sk) |
| 424 | { |
| 425 | struct sockaddr_in addr; |
| 426 | fio_socklen_t len = sizeof(addr); |
| 427 | struct pollfd pfd; |
| 428 | int ret, sk, flags, exitval = 0; |
| 429 | |
| 430 | dprint(FD_NET, "server enter accept loop\n"); |
| 431 | |
| 432 | flags = fcntl(listen_sk, F_GETFL); |
| 433 | flags |= O_NONBLOCK; |
| 434 | fcntl(listen_sk, F_SETFL, flags); |
| 435 | again: |
| 436 | pfd.fd = listen_sk; |
| 437 | pfd.events = POLLIN; |
| 438 | do { |
| 439 | ret = poll(&pfd, 1, 100); |
| 440 | if (ret < 0) { |
| 441 | if (errno == EINTR) |
| 442 | break; |
| 443 | log_err("fio: poll: %s\n", strerror(errno)); |
| 444 | goto out; |
| 445 | } else if (!ret) |
| 446 | continue; |
| 447 | |
| 448 | if (pfd.revents & POLLIN) |
| 449 | break; |
| 450 | } while (!exit_backend); |
| 451 | |
| 452 | if (exit_backend) |
| 453 | goto out; |
| 454 | |
| 455 | sk = accept(listen_sk, (struct sockaddr *) &addr, &len); |
| 456 | if (sk < 0) { |
| 457 | log_err("fio: accept: %s\n", strerror(errno)); |
| 458 | return -1; |
| 459 | } |
| 460 | |
| 461 | dprint(FD_NET, "server: connect from %s\n", inet_ntoa(addr.sin_addr)); |
| 462 | |
| 463 | server_fd = sk; |
| 464 | |
| 465 | exitval = handle_connection(sk, 1); |
| 466 | |
| 467 | server_fd = -1; |
| 468 | close(sk); |
| 469 | |
| 470 | if (!exit_backend) |
| 471 | goto again; |
| 472 | |
| 473 | out: |
| 474 | return exitval; |
| 475 | } |
| 476 | |
| 477 | int fio_server_text_output(const char *buf, unsigned int len) |
| 478 | { |
| 479 | if (server_fd != -1) |
| 480 | return fio_net_send_cmd(server_fd, FIO_NET_CMD_TEXT, buf, len); |
| 481 | |
| 482 | return fwrite(buf, len, 1, f_err); |
| 483 | } |
| 484 | |
| 485 | static void convert_io_stat(struct io_stat *dst, struct io_stat *src) |
| 486 | { |
| 487 | dst->max_val = cpu_to_le64(src->max_val); |
| 488 | dst->min_val = cpu_to_le64(src->min_val); |
| 489 | dst->samples = cpu_to_le64(src->samples); |
| 490 | |
| 491 | /* |
| 492 | * Encode to IEEE 754 for network transfer |
| 493 | */ |
| 494 | dst->mean.u.i = __cpu_to_le64(fio_double_to_uint64(src->mean.u.f)); |
| 495 | dst->S.u.i = __cpu_to_le64(fio_double_to_uint64(src->S.u.f)); |
| 496 | } |
| 497 | |
| 498 | static void convert_gs(struct group_run_stats *dst, struct group_run_stats *src) |
| 499 | { |
| 500 | int i; |
| 501 | |
| 502 | for (i = 0; i < 2; i++) { |
| 503 | dst->max_run[i] = cpu_to_le64(src->max_run[i]); |
| 504 | dst->min_run[i] = cpu_to_le64(src->min_run[i]); |
| 505 | dst->max_bw[i] = cpu_to_le64(src->max_bw[i]); |
| 506 | dst->min_bw[i] = cpu_to_le64(src->min_bw[i]); |
| 507 | dst->io_kb[i] = cpu_to_le64(src->io_kb[i]); |
| 508 | dst->agg[i] = cpu_to_le64(src->agg[i]); |
| 509 | } |
| 510 | |
| 511 | dst->kb_base = cpu_to_le32(src->kb_base); |
| 512 | dst->groupid = cpu_to_le32(src->groupid); |
| 513 | } |
| 514 | |
| 515 | /* |
| 516 | * Send a CMD_TS, which packs struct thread_stat and group_run_stats |
| 517 | * into a single payload. |
| 518 | */ |
| 519 | void fio_server_send_ts(struct thread_stat *ts, struct group_run_stats *rs) |
| 520 | { |
| 521 | struct cmd_ts_pdu p; |
| 522 | int i, j; |
| 523 | |
| 524 | dprint(FD_NET, "server sending end stats\n"); |
| 525 | |
| 526 | memset(&p, 0, sizeof(p)); |
| 527 | |
| 528 | strcpy(p.ts.name, ts->name); |
| 529 | strcpy(p.ts.verror, ts->verror); |
| 530 | strcpy(p.ts.description, ts->description); |
| 531 | |
| 532 | p.ts.error = cpu_to_le32(ts->error); |
| 533 | p.ts.groupid = cpu_to_le32(ts->groupid); |
| 534 | p.ts.pid = cpu_to_le32(ts->pid); |
| 535 | p.ts.members = cpu_to_le32(ts->members); |
| 536 | |
| 537 | for (i = 0; i < 2; i++) { |
| 538 | convert_io_stat(&p.ts.clat_stat[i], &ts->clat_stat[i]); |
| 539 | convert_io_stat(&p.ts.slat_stat[i], &ts->slat_stat[i]); |
| 540 | convert_io_stat(&p.ts.lat_stat[i], &ts->lat_stat[i]); |
| 541 | convert_io_stat(&p.ts.bw_stat[i], &ts->bw_stat[i]); |
| 542 | } |
| 543 | |
| 544 | p.ts.usr_time = cpu_to_le64(ts->usr_time); |
| 545 | p.ts.sys_time = cpu_to_le64(ts->sys_time); |
| 546 | p.ts.ctx = cpu_to_le64(ts->ctx); |
| 547 | p.ts.minf = cpu_to_le64(ts->minf); |
| 548 | p.ts.majf = cpu_to_le64(ts->majf); |
| 549 | p.ts.clat_percentiles = cpu_to_le64(ts->clat_percentiles); |
| 550 | |
| 551 | for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) { |
| 552 | fio_fp64_t *fp = &p.ts.percentile_list[i]; |
| 553 | |
| 554 | fp->u.i = __cpu_to_le64(fio_double_to_uint64(fp->u.f)); |
| 555 | } |
| 556 | |
| 557 | for (i = 0; i < FIO_IO_U_MAP_NR; i++) { |
| 558 | p.ts.io_u_map[i] = cpu_to_le32(ts->io_u_map[i]); |
| 559 | p.ts.io_u_submit[i] = cpu_to_le32(ts->io_u_submit[i]); |
| 560 | p.ts.io_u_complete[i] = cpu_to_le32(ts->io_u_complete[i]); |
| 561 | } |
| 562 | |
| 563 | for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) { |
| 564 | p.ts.io_u_lat_u[i] = cpu_to_le32(ts->io_u_lat_u[i]); |
| 565 | p.ts.io_u_lat_m[i] = cpu_to_le32(ts->io_u_lat_m[i]); |
| 566 | } |
| 567 | |
| 568 | for (i = 0; i < 2; i++) |
| 569 | for (j = 0; j < FIO_IO_U_PLAT_NR; j++) |
| 570 | p.ts.io_u_plat[i][j] = cpu_to_le32(ts->io_u_plat[i][j]); |
| 571 | |
| 572 | for (i = 0; i < 3; i++) { |
| 573 | p.ts.total_io_u[i] = cpu_to_le64(ts->total_io_u[i]); |
| 574 | p.ts.short_io_u[i] = cpu_to_le64(ts->short_io_u[i]); |
| 575 | } |
| 576 | |
| 577 | p.ts.total_submit = cpu_to_le64(ts->total_submit); |
| 578 | p.ts.total_complete = cpu_to_le64(ts->total_complete); |
| 579 | |
| 580 | for (i = 0; i < 2; i++) { |
| 581 | p.ts.io_bytes[i] = cpu_to_le64(ts->io_bytes[i]); |
| 582 | p.ts.runtime[i] = cpu_to_le64(ts->runtime[i]); |
| 583 | } |
| 584 | |
| 585 | p.ts.total_run_time = cpu_to_le64(ts->total_run_time); |
| 586 | p.ts.continue_on_error = cpu_to_le16(ts->continue_on_error); |
| 587 | p.ts.total_err_count = cpu_to_le64(ts->total_err_count); |
| 588 | p.ts.first_error = cpu_to_le32(ts->first_error); |
| 589 | p.ts.kb_base = cpu_to_le32(ts->kb_base); |
| 590 | |
| 591 | convert_gs(&p.rs, rs); |
| 592 | |
| 593 | fio_net_send_cmd(server_fd, FIO_NET_CMD_TS, &p, sizeof(p)); |
| 594 | } |
| 595 | |
| 596 | void fio_server_send_gs(struct group_run_stats *rs) |
| 597 | { |
| 598 | struct group_run_stats gs; |
| 599 | |
| 600 | dprint(FD_NET, "server sending group run stats\n"); |
| 601 | |
| 602 | convert_gs(&gs, rs); |
| 603 | fio_net_send_cmd(server_fd, FIO_NET_CMD_GS, &gs, sizeof(gs)); |
| 604 | } |
| 605 | |
| 606 | void fio_server_send_status(void) |
| 607 | { |
| 608 | struct jobs_eta *je; |
| 609 | size_t size; |
| 610 | void *buf; |
| 611 | int i; |
| 612 | |
| 613 | size = sizeof(*je) + thread_number * sizeof(char); |
| 614 | buf = malloc(size); |
| 615 | memset(buf, 0, size); |
| 616 | je = buf; |
| 617 | |
| 618 | if (!calc_thread_status(je)) { |
| 619 | free(je); |
| 620 | return; |
| 621 | } |
| 622 | |
| 623 | dprint(FD_NET, "server sending status\n"); |
| 624 | |
| 625 | je->nr_running = cpu_to_le32(je->nr_running); |
| 626 | je->nr_ramp = cpu_to_le32(je->nr_ramp); |
| 627 | je->nr_pending = cpu_to_le32(je->nr_pending); |
| 628 | je->files_open = cpu_to_le32(je->files_open); |
| 629 | je->m_rate = cpu_to_le32(je->m_rate); |
| 630 | je->t_rate = cpu_to_le32(je->t_rate); |
| 631 | je->m_iops = cpu_to_le32(je->m_iops); |
| 632 | je->t_iops = cpu_to_le32(je->t_iops); |
| 633 | |
| 634 | for (i = 0; i < 2; i++) { |
| 635 | je->rate[i] = cpu_to_le32(je->rate[i]); |
| 636 | je->iops[i] = cpu_to_le32(je->iops[i]); |
| 637 | } |
| 638 | |
| 639 | je->elapsed_sec = cpu_to_le32(je->nr_running); |
| 640 | je->eta_sec = cpu_to_le64(je->eta_sec); |
| 641 | |
| 642 | fio_net_send_cmd(server_fd, FIO_NET_CMD_ETA, buf, size); |
| 643 | free(je); |
| 644 | } |
| 645 | |
| 646 | int fio_server_log(const char *format, ...) |
| 647 | { |
| 648 | char buffer[1024]; |
| 649 | va_list args; |
| 650 | size_t len; |
| 651 | |
| 652 | dprint(FD_NET, "server log\n"); |
| 653 | |
| 654 | va_start(args, format); |
| 655 | len = vsnprintf(buffer, sizeof(buffer), format, args); |
| 656 | va_end(args); |
| 657 | |
| 658 | return fio_server_text_output(buffer, len); |
| 659 | } |
| 660 | |
| 661 | static int fio_init_server_ip(void) |
| 662 | { |
| 663 | int sk, opt; |
| 664 | |
| 665 | sk = socket(AF_INET, SOCK_STREAM, 0); |
| 666 | if (sk < 0) { |
| 667 | log_err("fio: socket: %s\n", strerror(errno)); |
| 668 | return -1; |
| 669 | } |
| 670 | |
| 671 | opt = 1; |
| 672 | if (setsockopt(sk, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt)) < 0) { |
| 673 | log_err("fio: setsockopt: %s\n", strerror(errno)); |
| 674 | close(sk); |
| 675 | return -1; |
| 676 | } |
| 677 | #ifdef SO_REUSEPORT |
| 678 | if (setsockopt(sk, SOL_SOCKET, SO_REUSEPORT, &opt, sizeof(opt)) < 0) { |
| 679 | log_err("fio: setsockopt: %s\n", strerror(errno)); |
| 680 | close(sk); |
| 681 | return -1; |
| 682 | } |
| 683 | #endif |
| 684 | |
| 685 | saddr_in.sin_family = AF_INET; |
| 686 | |
| 687 | if (bind(sk, (struct sockaddr *) &saddr_in, sizeof(saddr_in)) < 0) { |
| 688 | log_err("fio: bind: %s\n", strerror(errno)); |
| 689 | close(sk); |
| 690 | return -1; |
| 691 | } |
| 692 | |
| 693 | return sk; |
| 694 | } |
| 695 | |
| 696 | static int fio_init_server_sock(void) |
| 697 | { |
| 698 | struct sockaddr_un addr; |
| 699 | fio_socklen_t len; |
| 700 | mode_t mode; |
| 701 | int sk; |
| 702 | |
| 703 | sk = socket(AF_UNIX, SOCK_STREAM, 0); |
| 704 | if (sk < 0) { |
| 705 | log_err("fio: socket: %s\n", strerror(errno)); |
| 706 | return -1; |
| 707 | } |
| 708 | |
| 709 | mode = umask(000); |
| 710 | |
| 711 | memset(&addr, 0, sizeof(addr)); |
| 712 | addr.sun_family = AF_UNIX; |
| 713 | strcpy(addr.sun_path, bind_sock); |
| 714 | unlink(bind_sock); |
| 715 | |
| 716 | len = sizeof(addr.sun_family) + strlen(bind_sock) + 1; |
| 717 | |
| 718 | if (bind(sk, (struct sockaddr *) &addr, len) < 0) { |
| 719 | log_err("fio: bind: %s\n", strerror(errno)); |
| 720 | close(sk); |
| 721 | return -1; |
| 722 | } |
| 723 | |
| 724 | umask(mode); |
| 725 | return sk; |
| 726 | } |
| 727 | |
| 728 | static int fio_init_server_connection(void) |
| 729 | { |
| 730 | char bind_str[128]; |
| 731 | int sk; |
| 732 | |
| 733 | dprint(FD_NET, "starting server\n"); |
| 734 | |
| 735 | if (!bind_sock) |
| 736 | sk = fio_init_server_ip(); |
| 737 | else |
| 738 | sk = fio_init_server_sock(); |
| 739 | |
| 740 | if (sk < 0) |
| 741 | return sk; |
| 742 | |
| 743 | if (!bind_sock) |
| 744 | sprintf(bind_str, "%s:%u", inet_ntoa(saddr_in.sin_addr), fio_net_port); |
| 745 | else |
| 746 | strcpy(bind_str, bind_sock); |
| 747 | |
| 748 | log_info("fio: server listening on %s\n", bind_str); |
| 749 | |
| 750 | if (listen(sk, 1) < 0) { |
| 751 | log_err("fio: listen: %s\n", strerror(errno)); |
| 752 | return -1; |
| 753 | } |
| 754 | |
| 755 | return sk; |
| 756 | } |
| 757 | |
| 758 | int fio_server_parse_string(const char *str, char **ptr, int *is_sock, |
| 759 | int *port, struct in_addr *inp) |
| 760 | { |
| 761 | *ptr = NULL; |
| 762 | *is_sock = 0; |
| 763 | *port = fio_net_port; |
| 764 | |
| 765 | if (!strncmp(str, "sock:", 5)) { |
| 766 | *ptr = strdup(str + 5); |
| 767 | *is_sock = 1; |
| 768 | } else { |
| 769 | const char *host = str; |
| 770 | char *portp; |
| 771 | int lport = 0; |
| 772 | |
| 773 | /* |
| 774 | * Is it ip:<ip or host>:port |
| 775 | */ |
| 776 | if (!strncmp(host, "ip:", 3)) |
| 777 | host += 3; |
| 778 | else if (host[0] == ':') { |
| 779 | /* String is :port */ |
| 780 | host++; |
| 781 | lport = atoi(host); |
| 782 | if (!lport || lport > 65535) { |
| 783 | log_err("fio: bad server port %u\n", port); |
| 784 | return 1; |
| 785 | } |
| 786 | /* no hostname given, we are done */ |
| 787 | *port = lport; |
| 788 | return 0; |
| 789 | } |
| 790 | |
| 791 | /* |
| 792 | * If no port seen yet, check if there's a last ':' at the end |
| 793 | */ |
| 794 | if (!lport) { |
| 795 | portp = strchr(host, ':'); |
| 796 | if (portp) { |
| 797 | *portp = '\0'; |
| 798 | portp++; |
| 799 | lport = atoi(portp); |
| 800 | if (!lport || lport > 65535) { |
| 801 | log_err("fio: bad server port %u\n", port); |
| 802 | return 1; |
| 803 | } |
| 804 | } |
| 805 | } |
| 806 | |
| 807 | if (lport) |
| 808 | *port = lport; |
| 809 | |
| 810 | *ptr = strdup(host); |
| 811 | |
| 812 | if (inet_aton(host, inp) != 1) { |
| 813 | struct hostent *hent; |
| 814 | |
| 815 | hent = gethostbyname(host); |
| 816 | if (!hent) { |
| 817 | free(*ptr); |
| 818 | *ptr = NULL; |
| 819 | return 1; |
| 820 | } |
| 821 | |
| 822 | memcpy(inp, hent->h_addr, 4); |
| 823 | } |
| 824 | } |
| 825 | |
| 826 | if (*port == 0) |
| 827 | *port = fio_net_port; |
| 828 | |
| 829 | return 0; |
| 830 | } |
| 831 | |
| 832 | /* |
| 833 | * Server arg should be one of: |
| 834 | * |
| 835 | * sock:/path/to/socket |
| 836 | * ip:1.2.3.4 |
| 837 | * 1.2.3.4 |
| 838 | * |
| 839 | * Where sock uses unix domain sockets, and ip binds the server to |
| 840 | * a specific interface. If no arguments are given to the server, it |
| 841 | * uses IP and binds to 0.0.0.0. |
| 842 | * |
| 843 | */ |
| 844 | static int fio_handle_server_arg(void) |
| 845 | { |
| 846 | int port = fio_net_port; |
| 847 | int is_sock, ret = 0; |
| 848 | |
| 849 | saddr_in.sin_addr.s_addr = htonl(INADDR_ANY); |
| 850 | |
| 851 | if (!fio_server_arg) |
| 852 | goto out; |
| 853 | |
| 854 | ret = fio_server_parse_string(fio_server_arg, &bind_sock, &is_sock, |
| 855 | &port, &saddr_in.sin_addr); |
| 856 | |
| 857 | if (!is_sock && bind_sock) { |
| 858 | free(bind_sock); |
| 859 | bind_sock = NULL; |
| 860 | } |
| 861 | |
| 862 | out: |
| 863 | fio_net_port = port; |
| 864 | saddr_in.sin_port = htons(port); |
| 865 | return ret; |
| 866 | } |
| 867 | |
| 868 | static int fio_server(void) |
| 869 | { |
| 870 | int sk, ret; |
| 871 | |
| 872 | dprint(FD_NET, "starting server\n"); |
| 873 | |
| 874 | if (fio_handle_server_arg()) |
| 875 | return -1; |
| 876 | |
| 877 | sk = fio_init_server_connection(); |
| 878 | if (sk < 0) |
| 879 | return -1; |
| 880 | |
| 881 | ret = accept_loop(sk); |
| 882 | |
| 883 | close(sk); |
| 884 | |
| 885 | if (fio_server_arg) { |
| 886 | free(fio_server_arg); |
| 887 | fio_server_arg = NULL; |
| 888 | } |
| 889 | if (bind_sock) |
| 890 | free(bind_sock); |
| 891 | |
| 892 | return ret; |
| 893 | } |
| 894 | |
| 895 | static void sig_int(int sig) |
| 896 | { |
| 897 | fio_terminate_threads(TERMINATE_ALL); |
| 898 | exit_backend = 1; |
| 899 | } |
| 900 | |
| 901 | static void server_signal_handler(void) |
| 902 | { |
| 903 | struct sigaction act; |
| 904 | |
| 905 | memset(&act, 0, sizeof(act)); |
| 906 | act.sa_handler = sig_int; |
| 907 | act.sa_flags = SA_RESTART; |
| 908 | sigaction(SIGINT, &act, NULL); |
| 909 | |
| 910 | memset(&act, 0, sizeof(act)); |
| 911 | act.sa_handler = sig_int; |
| 912 | act.sa_flags = SA_RESTART; |
| 913 | sigaction(SIGTERM, &act, NULL); |
| 914 | } |
| 915 | |
| 916 | int fio_start_server(int daemonize) |
| 917 | { |
| 918 | pid_t pid; |
| 919 | |
| 920 | server_signal_handler(); |
| 921 | |
| 922 | if (!daemonize) |
| 923 | return fio_server(); |
| 924 | |
| 925 | openlog("fio", LOG_NDELAY|LOG_NOWAIT|LOG_PID, LOG_USER); |
| 926 | pid = fork(); |
| 927 | if (pid < 0) { |
| 928 | syslog(LOG_ERR, "failed server fork"); |
| 929 | return -1; |
| 930 | } else if (pid) |
| 931 | exit(0); |
| 932 | |
| 933 | setsid(); |
| 934 | close(STDIN_FILENO); |
| 935 | close(STDOUT_FILENO); |
| 936 | close(STDERR_FILENO); |
| 937 | f_out = NULL; |
| 938 | f_err = NULL; |
| 939 | log_syslog = 1; |
| 940 | return fio_server(); |
| 941 | } |
| 942 | |
| 943 | void fio_server_set_arg(const char *arg) |
| 944 | { |
| 945 | fio_server_arg = strdup(arg); |
| 946 | } |