12 #include <netinet/in.h>
13 #include <arpa/inet.h>
19 #include "crc/crc16.h"
21 int fio_net_port = 8765;
25 static int server_fd = -1;
27 int fio_send_data(int sk, const void *p, unsigned int len)
29 assert(len <= sizeof(struct fio_net_cmd) + FIO_SERVER_MAX_PDU);
32 int ret = send(sk, p, len, 0);
42 else if (errno == EAGAIN || errno == EINTR)
44 } while (!exit_backend);
52 int fio_recv_data(int sk, void *p, unsigned int len)
55 int ret = recv(sk, p, len, MSG_WAITALL);
65 else if (errno == EAGAIN || errno == EINTR)
67 } while (!exit_backend);
75 static int verify_convert_cmd(struct fio_net_cmd *cmd)
79 cmd->cmd_crc16 = le16_to_cpu(cmd->cmd_crc16);
80 cmd->pdu_crc16 = le16_to_cpu(cmd->pdu_crc16);
82 crc = crc16(cmd, FIO_NET_CMD_CRC_SZ);
83 if (crc != cmd->cmd_crc16) {
84 log_err("fio: server bad crc on command (got %x, wanted %x)\n",
89 cmd->version = le16_to_cpu(cmd->version);
90 cmd->opcode = le16_to_cpu(cmd->opcode);
91 cmd->flags = le32_to_cpu(cmd->flags);
92 cmd->serial = le64_to_cpu(cmd->serial);
93 cmd->pdu_len = le32_to_cpu(cmd->pdu_len);
95 switch (cmd->version) {
99 log_err("fio: bad server cmd version %d\n", cmd->version);
103 if (cmd->pdu_len > FIO_SERVER_MAX_PDU) {
104 log_err("fio: command payload too large: %u\n", cmd->pdu_len);
112 * Read (and defragment, if necessary) incoming commands
114 struct fio_net_cmd *fio_net_recv_cmd(int sk, int block)
116 struct fio_net_cmd cmd, *cmdret = NULL;
117 size_t cmd_size = 0, pdu_offset = 0;
129 int timeo = block ? 100 : 10;
131 ret = poll(&pfd, 1, timeo);
135 log_err("fio: poll: %s\n", strerror(errno));
143 if (pfd.revents & POLLIN)
145 if (pfd.revents & (POLLERR|POLLHUP)) {
149 } while (ret >= 0 && block);
154 ret = fio_recv_data(sk, &cmd, sizeof(cmd));
158 /* We have a command, verify it and swap if need be */
159 ret = verify_convert_cmd(&cmd);
164 /* if this is text, add room for \0 at the end */
165 cmd_size = sizeof(cmd) + cmd.pdu_len + 1;
168 cmd_size += cmd.pdu_len;
170 cmdret = realloc(cmdret, cmd_size);
173 memcpy(cmdret, &cmd, sizeof(cmd));
175 assert(cmdret->opcode == cmd.opcode);
180 /* There's payload, get it */
181 pdu = (void *) cmdret->payload + pdu_offset;
182 ret = fio_recv_data(sk, pdu, cmd.pdu_len);
186 /* Verify payload crc */
187 crc = crc16(pdu, cmd.pdu_len);
188 if (crc != cmd.pdu_crc16) {
189 log_err("fio: server bad crc on payload ");
190 log_err("(got %x, wanted %x)\n", cmd.pdu_crc16, crc);
195 pdu_offset += cmd.pdu_len;
197 cmdret->pdu_len += cmd.pdu_len;
199 } while (cmd.flags & FIO_NET_CMD_F_MORE);
205 /* zero-terminate text input */
206 if (cmdret->pdu_len && (cmdret->opcode == FIO_NET_CMD_TEXT ||
207 cmdret->opcode == FIO_NET_CMD_JOB)) {
208 char *buf = (char *) cmdret->payload;
210 buf[cmdret->pdu_len ] = '\0';
212 /* frag flag is internal */
213 cmdret->flags &= ~FIO_NET_CMD_F_MORE;
219 void fio_net_cmd_crc(struct fio_net_cmd *cmd)
223 cmd->cmd_crc16 = __cpu_to_le16(crc16(cmd, FIO_NET_CMD_CRC_SZ));
225 pdu_len = le32_to_cpu(cmd->pdu_len);
227 cmd->pdu_crc16 = __cpu_to_le16(crc16(cmd->payload, pdu_len));
230 int fio_net_send_cmd(int fd, uint16_t opcode, const void *buf, off_t size)
232 struct fio_net_cmd *cmd;
238 if (this_len > FIO_SERVER_MAX_PDU)
239 this_len = FIO_SERVER_MAX_PDU;
241 cmd = malloc(sizeof(*cmd) + this_len);
243 fio_init_net_cmd(cmd, opcode, buf, this_len);
246 cmd->flags = __cpu_to_le32(FIO_NET_CMD_F_MORE);
248 fio_net_cmd_crc(cmd);
250 ret = fio_send_data(fd, cmd, sizeof(*cmd) + this_len);
254 } while (!ret && size);
259 int fio_net_send_simple_cmd(int sk, uint16_t opcode, uint64_t serial)
261 struct fio_net_cmd cmd = {
262 .version = __cpu_to_le16(FIO_SERVER_VER1),
263 .opcode = cpu_to_le16(opcode),
264 .serial = cpu_to_le64(serial),
267 fio_net_cmd_crc(&cmd);
269 return fio_send_data(sk, &cmd, sizeof(cmd));
272 static int fio_server_send_quit_cmd(void)
274 dprint(FD_NET, "server: sending quit\n");
275 return fio_net_send_simple_cmd(server_fd, FIO_NET_CMD_QUIT, 0);
278 static int handle_job_cmd(struct fio_net_cmd *cmd)
280 char *buf = (char *) cmd->payload;
283 if (parse_jobs_ini(buf, 1, 0))
286 fio_net_send_simple_cmd(server_fd, FIO_NET_CMD_START, 0);
289 fio_server_send_quit_cmd();
294 static int handle_jobline_cmd(struct fio_net_cmd *cmd)
296 struct cmd_line_pdu *pdu = (struct cmd_line_pdu *) cmd->payload;
297 char *argv[FIO_NET_CMD_JOBLINE_ARGV];
300 pdu->argc = le16_to_cpu(pdu->argc);
302 dprint(FD_NET, "server: %d command line args\n", pdu->argc);
304 for (i = 0; i < pdu->argc; i++) {
305 argv[i] = (char *) pdu->argv[i];
306 dprint(FD_NET, "server: %d: %s\n", i, argv[i]);
309 if (parse_cmd_line(pdu->argc, argv))
312 fio_net_send_simple_cmd(server_fd, FIO_NET_CMD_START, 0);
315 fio_server_send_quit_cmd();
320 static int handle_probe_cmd(struct fio_net_cmd *cmd)
322 struct cmd_probe_pdu probe;
324 memset(&probe, 0, sizeof(probe));
325 gethostname((char *) probe.hostname, sizeof(probe.hostname));
326 probe.fio_major = FIO_MAJOR;
327 probe.fio_minor = FIO_MINOR;
328 probe.fio_patch = FIO_PATCH;
330 return fio_net_send_cmd(server_fd, FIO_NET_CMD_PROBE, &probe, sizeof(probe));
333 static int handle_command(struct fio_net_cmd *cmd)
337 dprint(FD_NET, "server: got opcode %d\n", cmd->opcode);
339 switch (cmd->opcode) {
340 case FIO_NET_CMD_QUIT:
341 fio_terminate_threads(TERMINATE_ALL);
343 case FIO_NET_CMD_EXIT:
346 case FIO_NET_CMD_JOB:
347 ret = handle_job_cmd(cmd);
349 case FIO_NET_CMD_JOBLINE:
350 ret = handle_jobline_cmd(cmd);
352 case FIO_NET_CMD_PROBE:
353 ret = handle_probe_cmd(cmd);
356 log_err("fio: unknown opcode: %d\n", cmd->opcode);
363 static int handle_connection(int sk, int block)
365 struct fio_net_cmd *cmd = NULL;
369 while (!exit_backend) {
370 cmd = fio_net_recv_cmd(sk, block);
376 ret = handle_command(cmd);
390 void fio_server_idle_loop(void)
393 handle_connection(server_fd, 0);
396 static int accept_loop(int listen_sk)
398 struct sockaddr addr;
399 unsigned int len = sizeof(addr);
401 int ret, sk, flags, exitval = 0;
403 dprint(FD_NET, "server enter accept loop\n");
405 flags = fcntl(listen_sk, F_GETFL);
407 fcntl(listen_sk, F_SETFL, flags);
412 ret = poll(&pfd, 1, 100);
416 log_err("fio: poll: %s\n", strerror(errno));
421 if (pfd.revents & POLLIN)
423 } while (!exit_backend);
428 sk = accept(listen_sk, &addr, &len);
430 log_err("fio: accept: %s\n", strerror(errno));
434 dprint(FD_NET, "server got a connection\n");
438 exitval = handle_connection(sk, 1);
450 int fio_server_text_output(const char *buf, unsigned int len)
453 return fio_net_send_cmd(server_fd, FIO_NET_CMD_TEXT, buf, len);
458 static void convert_io_stat(struct io_stat *dst, struct io_stat *src)
460 dst->max_val = cpu_to_le64(src->max_val);
461 dst->min_val = cpu_to_le64(src->min_val);
462 dst->samples = cpu_to_le64(src->samples);
464 dst->mean = __cpu_to_le64(src->mean);
465 dst->S = __cpu_to_le64(src->S);
468 static void convert_gs(struct group_run_stats *dst, struct group_run_stats *src)
472 for (i = 0; i < 2; i++) {
473 dst->max_run[i] = cpu_to_le64(src->max_run[i]);
474 dst->min_run[i] = cpu_to_le64(src->min_run[i]);
475 dst->max_bw[i] = cpu_to_le64(src->max_bw[i]);
476 dst->min_bw[i] = cpu_to_le64(src->min_bw[i]);
477 dst->io_kb[i] = cpu_to_le64(src->io_kb[i]);
478 dst->agg[i] = cpu_to_le64(src->agg[i]);
481 dst->kb_base = cpu_to_le32(src->kb_base);
482 dst->groupid = cpu_to_le32(src->groupid);
486 * Send a CMD_TS, which packs struct thread_stat and group_run_stats
487 * into a single payload.
489 void fio_server_send_ts(struct thread_stat *ts, struct group_run_stats *rs)
494 dprint(FD_NET, "server sending end stats\n");
496 memset(&p, 0, sizeof(p));
498 strcpy(p.ts.name, ts->name);
499 strcpy(p.ts.verror, ts->verror);
500 strcpy(p.ts.description, ts->description);
502 p.ts.error = cpu_to_le32(ts->error);
503 p.ts.groupid = cpu_to_le32(ts->groupid);
504 p.ts.pid = cpu_to_le32(ts->pid);
505 p.ts.members = cpu_to_le32(ts->members);
507 for (i = 0; i < 2; i++) {
508 convert_io_stat(&p.ts.clat_stat[i], &ts->clat_stat[i]);
509 convert_io_stat(&p.ts.slat_stat[i], &ts->slat_stat[i]);
510 convert_io_stat(&p.ts.lat_stat[i], &ts->lat_stat[i]);
511 convert_io_stat(&p.ts.bw_stat[i], &ts->bw_stat[i]);
514 p.ts.usr_time = cpu_to_le64(ts->usr_time);
515 p.ts.sys_time = cpu_to_le64(ts->sys_time);
516 p.ts.ctx = cpu_to_le64(ts->ctx);
517 p.ts.minf = cpu_to_le64(ts->minf);
518 p.ts.majf = cpu_to_le64(ts->majf);
519 p.ts.clat_percentiles = cpu_to_le64(ts->clat_percentiles);
520 p.ts.percentile_list = NULL;
522 for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
523 p.ts.io_u_map[i] = cpu_to_le32(ts->io_u_map[i]);
524 p.ts.io_u_submit[i] = cpu_to_le32(ts->io_u_submit[i]);
525 p.ts.io_u_complete[i] = cpu_to_le32(ts->io_u_complete[i]);
528 for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) {
529 p.ts.io_u_lat_u[i] = cpu_to_le32(ts->io_u_lat_u[i]);
530 p.ts.io_u_lat_m[i] = cpu_to_le32(ts->io_u_lat_m[i]);
533 for (i = 0; i < 2; i++)
534 for (j = 0; j < FIO_IO_U_PLAT_NR; j++)
535 p.ts.io_u_plat[i][j] = cpu_to_le32(ts->io_u_plat[i][j]);
537 for (i = 0; i < 3; i++) {
538 p.ts.total_io_u[i] = cpu_to_le64(ts->total_io_u[i]);
539 p.ts.short_io_u[i] = cpu_to_le64(ts->short_io_u[i]);
542 p.ts.total_submit = cpu_to_le64(ts->total_submit);
543 p.ts.total_complete = cpu_to_le64(ts->total_complete);
545 for (i = 0; i < 2; i++) {
546 p.ts.io_bytes[i] = cpu_to_le64(ts->io_bytes[i]);
547 p.ts.runtime[i] = cpu_to_le64(ts->runtime[i]);
550 p.ts.total_run_time = cpu_to_le64(ts->total_run_time);
551 p.ts.continue_on_error = cpu_to_le16(ts->continue_on_error);
552 p.ts.total_err_count = cpu_to_le64(ts->total_err_count);
553 p.ts.first_error = cpu_to_le32(ts->first_error);
554 p.ts.kb_base = cpu_to_le32(ts->kb_base);
556 convert_gs(&p.rs, rs);
558 fio_net_send_cmd(server_fd, FIO_NET_CMD_TS, &p, sizeof(p));
561 void fio_server_send_gs(struct group_run_stats *rs)
563 struct group_run_stats gs;
565 dprint(FD_NET, "server sending group run stats\n");
568 fio_net_send_cmd(server_fd, FIO_NET_CMD_GS, &gs, sizeof(gs));
571 void fio_server_send_status(void)
578 size = sizeof(*je) + thread_number * sizeof(char);
580 memset(buf, 0, size);
583 if (!calc_thread_status(je)) {
588 dprint(FD_NET, "server sending status\n");
590 je->nr_running = cpu_to_le32(je->nr_running);
591 je->nr_ramp = cpu_to_le32(je->nr_ramp);
592 je->nr_pending = cpu_to_le32(je->nr_pending);
593 je->files_open = cpu_to_le32(je->files_open);
594 je->m_rate = cpu_to_le32(je->m_rate);
595 je->t_rate = cpu_to_le32(je->t_rate);
596 je->m_iops = cpu_to_le32(je->m_iops);
597 je->t_iops = cpu_to_le32(je->t_iops);
599 for (i = 0; i < 2; i++) {
600 je->rate[i] = cpu_to_le32(je->rate[i]);
601 je->iops[i] = cpu_to_le32(je->iops[i]);
604 je->elapsed_sec = cpu_to_le32(je->nr_running);
605 je->eta_sec = cpu_to_le64(je->eta_sec);
607 fio_net_send_cmd(server_fd, FIO_NET_CMD_ETA, buf, size);
611 int fio_server_log(const char *format, ...)
617 dprint(FD_NET, "server log\n");
619 va_start(args, format);
620 len = vsnprintf(buffer, sizeof(buffer), format, args);
623 return fio_server_text_output(buffer, len);
626 static int fio_server(void)
628 struct sockaddr_in saddr_in;
629 struct sockaddr addr;
633 dprint(FD_NET, "starting server\n");
635 sk = socket(AF_INET, SOCK_STREAM, 0);
637 log_err("fio: socket: %s\n", strerror(errno));
642 if (setsockopt(sk, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt)) < 0) {
643 log_err("fio: setsockopt: %s\n", strerror(errno));
647 if (setsockopt(fd, SOL_SOCKET, SO_REUSEPORT, &opt, sizeof(opt)) < 0) {
648 log_err("fio: setsockopt: %s\n", strerror(errno));
653 saddr_in.sin_family = AF_INET;
654 saddr_in.sin_addr.s_addr = htonl(INADDR_ANY);
655 saddr_in.sin_port = htons(fio_net_port);
657 if (bind(sk, (struct sockaddr *) &saddr_in, sizeof(saddr_in)) < 0) {
658 log_err("fio: bind: %s\n", strerror(errno));
662 if (listen(sk, 1) < 0) {
663 log_err("fio: listen: %s\n", strerror(errno));
668 if (getsockname(sk, &addr, &len) < 0) {
669 log_err("fio: getsockname: %s\n", strerror(errno));
673 ret = accept_loop(sk);
678 static void sig_int(int sig)
680 fio_terminate_threads(TERMINATE_ALL);
684 static void server_signal_handler(void)
686 struct sigaction act;
688 memset(&act, 0, sizeof(act));
689 act.sa_handler = sig_int;
690 act.sa_flags = SA_RESTART;
691 sigaction(SIGINT, &act, NULL);
693 memset(&act, 0, sizeof(act));
694 act.sa_handler = sig_int;
695 act.sa_flags = SA_RESTART;
696 sigaction(SIGTERM, &act, NULL);
699 int fio_start_server(int daemonize)
703 server_signal_handler();
708 openlog("fio", LOG_NDELAY|LOG_NOWAIT|LOG_PID, LOG_USER);
711 syslog(LOG_ERR, "failed server fork");
718 close(STDOUT_FILENO);
719 close(STDERR_FILENO);