12 #include <netinet/in.h>
13 #include <arpa/inet.h>
20 #include "crc/crc16.h"
22 int fio_net_port = 8765;
26 static int server_fd = -1;
28 int fio_send_data(int sk, const void *p, unsigned int len)
30 assert(len <= sizeof(struct fio_net_cmd) + FIO_SERVER_MAX_PDU);
33 int ret = send(sk, p, len, 0);
43 else if (errno == EAGAIN || errno == EINTR)
45 } while (!exit_backend);
53 int fio_recv_data(int sk, void *p, unsigned int len)
56 int ret = recv(sk, p, len, MSG_WAITALL);
66 else if (errno == EAGAIN || errno == EINTR)
68 } while (!exit_backend);
76 static int verify_convert_cmd(struct fio_net_cmd *cmd)
80 cmd->cmd_crc16 = le16_to_cpu(cmd->cmd_crc16);
81 cmd->pdu_crc16 = le16_to_cpu(cmd->pdu_crc16);
83 crc = crc16(cmd, FIO_NET_CMD_CRC_SZ);
84 if (crc != cmd->cmd_crc16) {
85 log_err("fio: server bad crc on command (got %x, wanted %x)\n",
90 cmd->version = le16_to_cpu(cmd->version);
91 cmd->opcode = le16_to_cpu(cmd->opcode);
92 cmd->flags = le32_to_cpu(cmd->flags);
93 cmd->serial = le64_to_cpu(cmd->serial);
94 cmd->pdu_len = le32_to_cpu(cmd->pdu_len);
96 switch (cmd->version) {
100 log_err("fio: bad server cmd version %d\n", cmd->version);
104 if (cmd->pdu_len > FIO_SERVER_MAX_PDU) {
105 log_err("fio: command payload too large: %u\n", cmd->pdu_len);
113 * Read (and defragment, if necessary) incoming commands
115 struct fio_net_cmd *fio_net_recv_cmd(int sk, int block)
117 struct fio_net_cmd cmd, *cmdret = NULL;
118 size_t cmd_size = 0, pdu_offset = 0;
130 int timeo = block ? 100 : 10;
132 ret = poll(&pfd, 1, timeo);
136 log_err("fio: poll: %s\n", strerror(errno));
144 if (pfd.revents & POLLIN)
146 if (pfd.revents & (POLLERR|POLLHUP)) {
150 } while (ret >= 0 && block);
155 ret = fio_recv_data(sk, &cmd, sizeof(cmd));
159 /* We have a command, verify it and swap if need be */
160 ret = verify_convert_cmd(&cmd);
165 /* if this is text, add room for \0 at the end */
166 cmd_size = sizeof(cmd) + cmd.pdu_len + 1;
169 cmd_size += cmd.pdu_len;
171 cmdret = realloc(cmdret, cmd_size);
174 memcpy(cmdret, &cmd, sizeof(cmd));
176 assert(cmdret->opcode == cmd.opcode);
181 /* There's payload, get it */
182 pdu = (void *) cmdret->payload + pdu_offset;
183 ret = fio_recv_data(sk, pdu, cmd.pdu_len);
187 /* Verify payload crc */
188 crc = crc16(pdu, cmd.pdu_len);
189 if (crc != cmd.pdu_crc16) {
190 log_err("fio: server bad crc on payload ");
191 log_err("(got %x, wanted %x)\n", cmd.pdu_crc16, crc);
196 pdu_offset += cmd.pdu_len;
198 cmdret->pdu_len += cmd.pdu_len;
200 } while (cmd.flags & FIO_NET_CMD_F_MORE);
206 /* zero-terminate text input */
207 if (cmdret->pdu_len && (cmdret->opcode == FIO_NET_CMD_TEXT ||
208 cmdret->opcode == FIO_NET_CMD_JOB)) {
209 char *buf = (char *) cmdret->payload;
211 buf[cmdret->pdu_len ] = '\0';
213 /* frag flag is internal */
214 cmdret->flags &= ~FIO_NET_CMD_F_MORE;
220 void fio_net_cmd_crc(struct fio_net_cmd *cmd)
224 cmd->cmd_crc16 = __cpu_to_le16(crc16(cmd, FIO_NET_CMD_CRC_SZ));
226 pdu_len = le32_to_cpu(cmd->pdu_len);
228 cmd->pdu_crc16 = __cpu_to_le16(crc16(cmd->payload, pdu_len));
231 int fio_net_send_cmd(int fd, uint16_t opcode, const void *buf, off_t size)
233 struct fio_net_cmd *cmd;
239 if (this_len > FIO_SERVER_MAX_PDU)
240 this_len = FIO_SERVER_MAX_PDU;
242 cmd = malloc(sizeof(*cmd) + this_len);
244 fio_init_net_cmd(cmd, opcode, buf, this_len);
247 cmd->flags = __cpu_to_le32(FIO_NET_CMD_F_MORE);
249 fio_net_cmd_crc(cmd);
251 ret = fio_send_data(fd, cmd, sizeof(*cmd) + this_len);
255 } while (!ret && size);
260 int fio_net_send_simple_cmd(int sk, uint16_t opcode, uint64_t serial)
262 struct fio_net_cmd cmd = {
263 .version = __cpu_to_le16(FIO_SERVER_VER1),
264 .opcode = cpu_to_le16(opcode),
265 .serial = cpu_to_le64(serial),
268 fio_net_cmd_crc(&cmd);
270 return fio_send_data(sk, &cmd, sizeof(cmd));
273 static int fio_server_send_quit_cmd(void)
275 dprint(FD_NET, "server: sending quit\n");
276 return fio_net_send_simple_cmd(server_fd, FIO_NET_CMD_QUIT, 0);
279 static int handle_job_cmd(struct fio_net_cmd *cmd)
281 char *buf = (char *) cmd->payload;
284 if (parse_jobs_ini(buf, 1, 0))
287 fio_net_send_simple_cmd(server_fd, FIO_NET_CMD_START, 0);
290 fio_server_send_quit_cmd();
295 static int handle_jobline_cmd(struct fio_net_cmd *cmd)
297 struct cmd_line_pdu *pdu = (struct cmd_line_pdu *) cmd->payload;
298 char *argv[FIO_NET_CMD_JOBLINE_ARGV];
301 pdu->argc = le16_to_cpu(pdu->argc);
303 dprint(FD_NET, "server: %d command line args\n", pdu->argc);
305 for (i = 0; i < pdu->argc; i++) {
306 argv[i] = (char *) pdu->argv[i];
307 dprint(FD_NET, "server: %d: %s\n", i, argv[i]);
310 if (parse_cmd_line(pdu->argc, argv))
313 fio_net_send_simple_cmd(server_fd, FIO_NET_CMD_START, 0);
316 fio_server_send_quit_cmd();
321 static int handle_probe_cmd(struct fio_net_cmd *cmd)
323 struct cmd_probe_pdu probe;
325 memset(&probe, 0, sizeof(probe));
326 gethostname((char *) probe.hostname, sizeof(probe.hostname));
327 probe.fio_major = FIO_MAJOR;
328 probe.fio_minor = FIO_MINOR;
329 probe.fio_patch = FIO_PATCH;
331 return fio_net_send_cmd(server_fd, FIO_NET_CMD_PROBE, &probe, sizeof(probe));
334 static int handle_command(struct fio_net_cmd *cmd)
338 dprint(FD_NET, "server: got opcode %d\n", cmd->opcode);
340 switch (cmd->opcode) {
341 case FIO_NET_CMD_QUIT:
342 fio_terminate_threads(TERMINATE_ALL);
344 case FIO_NET_CMD_EXIT:
347 case FIO_NET_CMD_JOB:
348 ret = handle_job_cmd(cmd);
350 case FIO_NET_CMD_JOBLINE:
351 ret = handle_jobline_cmd(cmd);
353 case FIO_NET_CMD_PROBE:
354 ret = handle_probe_cmd(cmd);
357 log_err("fio: unknown opcode: %d\n", cmd->opcode);
364 static int handle_connection(int sk, int block)
366 struct fio_net_cmd *cmd = NULL;
370 while (!exit_backend) {
371 cmd = fio_net_recv_cmd(sk, block);
377 ret = handle_command(cmd);
391 void fio_server_idle_loop(void)
394 handle_connection(server_fd, 0);
397 static int accept_loop(int listen_sk)
399 struct sockaddr addr;
400 unsigned int len = sizeof(addr);
402 int ret, sk, flags, exitval = 0;
404 dprint(FD_NET, "server enter accept loop\n");
406 flags = fcntl(listen_sk, F_GETFL);
408 fcntl(listen_sk, F_SETFL, flags);
413 ret = poll(&pfd, 1, 100);
417 log_err("fio: poll: %s\n", strerror(errno));
422 if (pfd.revents & POLLIN)
424 } while (!exit_backend);
429 sk = accept(listen_sk, &addr, &len);
431 log_err("fio: accept: %s\n", strerror(errno));
435 dprint(FD_NET, "server got a connection\n");
439 exitval = handle_connection(sk, 1);
451 int fio_server_text_output(const char *buf, unsigned int len)
454 return fio_net_send_cmd(server_fd, FIO_NET_CMD_TEXT, buf, len);
459 static void convert_io_stat(struct io_stat *dst, struct io_stat *src)
461 dst->max_val = cpu_to_le64(src->max_val);
462 dst->min_val = cpu_to_le64(src->min_val);
463 dst->samples = cpu_to_le64(src->samples);
465 dst->mean = __cpu_to_le64(src->mean);
466 dst->S = __cpu_to_le64(src->S);
469 static void convert_gs(struct group_run_stats *dst, struct group_run_stats *src)
473 for (i = 0; i < 2; i++) {
474 dst->max_run[i] = cpu_to_le64(src->max_run[i]);
475 dst->min_run[i] = cpu_to_le64(src->min_run[i]);
476 dst->max_bw[i] = cpu_to_le64(src->max_bw[i]);
477 dst->min_bw[i] = cpu_to_le64(src->min_bw[i]);
478 dst->io_kb[i] = cpu_to_le64(src->io_kb[i]);
479 dst->agg[i] = cpu_to_le64(src->agg[i]);
482 dst->kb_base = cpu_to_le32(src->kb_base);
483 dst->groupid = cpu_to_le32(src->groupid);
487 * Send a CMD_TS, which packs struct thread_stat and group_run_stats
488 * into a single payload.
490 void fio_server_send_ts(struct thread_stat *ts, struct group_run_stats *rs)
495 dprint(FD_NET, "server sending end stats\n");
497 memset(&p, 0, sizeof(p));
499 strcpy(p.ts.name, ts->name);
500 strcpy(p.ts.verror, ts->verror);
501 strcpy(p.ts.description, ts->description);
503 p.ts.error = cpu_to_le32(ts->error);
504 p.ts.groupid = cpu_to_le32(ts->groupid);
505 p.ts.pid = cpu_to_le32(ts->pid);
506 p.ts.members = cpu_to_le32(ts->members);
508 for (i = 0; i < 2; i++) {
509 convert_io_stat(&p.ts.clat_stat[i], &ts->clat_stat[i]);
510 convert_io_stat(&p.ts.slat_stat[i], &ts->slat_stat[i]);
511 convert_io_stat(&p.ts.lat_stat[i], &ts->lat_stat[i]);
512 convert_io_stat(&p.ts.bw_stat[i], &ts->bw_stat[i]);
515 p.ts.usr_time = cpu_to_le64(ts->usr_time);
516 p.ts.sys_time = cpu_to_le64(ts->sys_time);
517 p.ts.ctx = cpu_to_le64(ts->ctx);
518 p.ts.minf = cpu_to_le64(ts->minf);
519 p.ts.majf = cpu_to_le64(ts->majf);
520 p.ts.clat_percentiles = cpu_to_le64(ts->clat_percentiles);
521 p.ts.percentile_list = NULL;
523 for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
524 p.ts.io_u_map[i] = cpu_to_le32(ts->io_u_map[i]);
525 p.ts.io_u_submit[i] = cpu_to_le32(ts->io_u_submit[i]);
526 p.ts.io_u_complete[i] = cpu_to_le32(ts->io_u_complete[i]);
529 for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) {
530 p.ts.io_u_lat_u[i] = cpu_to_le32(ts->io_u_lat_u[i]);
531 p.ts.io_u_lat_m[i] = cpu_to_le32(ts->io_u_lat_m[i]);
534 for (i = 0; i < 2; i++)
535 for (j = 0; j < FIO_IO_U_PLAT_NR; j++)
536 p.ts.io_u_plat[i][j] = cpu_to_le32(ts->io_u_plat[i][j]);
538 for (i = 0; i < 3; i++) {
539 p.ts.total_io_u[i] = cpu_to_le64(ts->total_io_u[i]);
540 p.ts.short_io_u[i] = cpu_to_le64(ts->short_io_u[i]);
543 p.ts.total_submit = cpu_to_le64(ts->total_submit);
544 p.ts.total_complete = cpu_to_le64(ts->total_complete);
546 for (i = 0; i < 2; i++) {
547 p.ts.io_bytes[i] = cpu_to_le64(ts->io_bytes[i]);
548 p.ts.runtime[i] = cpu_to_le64(ts->runtime[i]);
551 p.ts.total_run_time = cpu_to_le64(ts->total_run_time);
552 p.ts.continue_on_error = cpu_to_le16(ts->continue_on_error);
553 p.ts.total_err_count = cpu_to_le64(ts->total_err_count);
554 p.ts.first_error = cpu_to_le32(ts->first_error);
555 p.ts.kb_base = cpu_to_le32(ts->kb_base);
557 convert_gs(&p.rs, rs);
559 fio_net_send_cmd(server_fd, FIO_NET_CMD_TS, &p, sizeof(p));
562 void fio_server_send_gs(struct group_run_stats *rs)
564 struct group_run_stats gs;
566 dprint(FD_NET, "server sending group run stats\n");
569 fio_net_send_cmd(server_fd, FIO_NET_CMD_GS, &gs, sizeof(gs));
572 void fio_server_send_status(void)
579 size = sizeof(*je) + thread_number * sizeof(char);
581 memset(buf, 0, size);
584 if (!calc_thread_status(je)) {
589 dprint(FD_NET, "server sending status\n");
591 je->nr_running = cpu_to_le32(je->nr_running);
592 je->nr_ramp = cpu_to_le32(je->nr_ramp);
593 je->nr_pending = cpu_to_le32(je->nr_pending);
594 je->files_open = cpu_to_le32(je->files_open);
595 je->m_rate = cpu_to_le32(je->m_rate);
596 je->t_rate = cpu_to_le32(je->t_rate);
597 je->m_iops = cpu_to_le32(je->m_iops);
598 je->t_iops = cpu_to_le32(je->t_iops);
600 for (i = 0; i < 2; i++) {
601 je->rate[i] = cpu_to_le32(je->rate[i]);
602 je->iops[i] = cpu_to_le32(je->iops[i]);
605 je->elapsed_sec = cpu_to_le32(je->nr_running);
606 je->eta_sec = cpu_to_le64(je->eta_sec);
608 fio_net_send_cmd(server_fd, FIO_NET_CMD_ETA, buf, size);
612 int fio_server_log(const char *format, ...)
618 dprint(FD_NET, "server log\n");
620 va_start(args, format);
621 len = vsnprintf(buffer, sizeof(buffer), format, args);
624 return fio_server_text_output(buffer, len);
627 static int fio_server(void)
629 struct sockaddr_in saddr_in;
630 struct sockaddr addr;
634 dprint(FD_NET, "starting server\n");
636 sk = socket(AF_INET, SOCK_STREAM, 0);
638 log_err("fio: socket: %s\n", strerror(errno));
643 if (setsockopt(sk, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt)) < 0) {
644 log_err("fio: setsockopt: %s\n", strerror(errno));
648 if (setsockopt(fd, SOL_SOCKET, SO_REUSEPORT, &opt, sizeof(opt)) < 0) {
649 log_err("fio: setsockopt: %s\n", strerror(errno));
654 saddr_in.sin_family = AF_INET;
655 saddr_in.sin_addr.s_addr = htonl(INADDR_ANY);
656 saddr_in.sin_port = htons(fio_net_port);
658 if (bind(sk, (struct sockaddr *) &saddr_in, sizeof(saddr_in)) < 0) {
659 log_err("fio: bind: %s\n", strerror(errno));
663 if (listen(sk, 1) < 0) {
664 log_err("fio: listen: %s\n", strerror(errno));
669 if (getsockname(sk, &addr, &len) < 0) {
670 log_err("fio: getsockname: %s\n", strerror(errno));
674 ret = accept_loop(sk);
679 static void sig_int(int sig)
681 fio_terminate_threads(TERMINATE_ALL);
685 static void server_signal_handler(void)
687 struct sigaction act;
689 memset(&act, 0, sizeof(act));
690 act.sa_handler = sig_int;
691 act.sa_flags = SA_RESTART;
692 sigaction(SIGINT, &act, NULL);
694 memset(&act, 0, sizeof(act));
695 act.sa_handler = sig_int;
696 act.sa_flags = SA_RESTART;
697 sigaction(SIGTERM, &act, NULL);
700 int fio_start_server(int daemonize)
704 server_signal_handler();
709 openlog("fio", LOG_NDELAY|LOG_NOWAIT|LOG_PID, LOG_USER);
712 syslog(LOG_ERR, "failed server fork");
719 close(STDOUT_FILENO);
720 close(STDERR_FILENO);