11 #include <sys/socket.h>
14 #include <netinet/in.h>
15 #include <arpa/inet.h>
23 #include "crc/crc16.h"
24 #include "lib/ieee754.h"
26 #include "fio_version.h"
28 int fio_net_port = FIO_NET_PORT;
32 static int server_fd = -1;
33 static char *fio_server_arg;
34 static char *bind_sock;
35 static struct sockaddr_in saddr_in;
36 static struct sockaddr_in6 saddr_in6;
39 struct fio_fork_item {
40 struct flist_head list;
47 /* Created on fork on new connection */
48 static FLIST_HEAD(conn_list);
50 /* Created on job fork from connection */
51 static FLIST_HEAD(job_list);
53 static const char *fio_server_ops[FIO_NET_CMD_NR] = {
74 const char *fio_server_op(unsigned int op)
78 if (op < FIO_NET_CMD_NR)
79 return fio_server_ops[op];
81 sprintf(buf, "UNKNOWN/%d", op);
85 static ssize_t iov_total_len(const struct iovec *iov, int count)
97 static int fio_sendv_data(int sk, struct iovec *iov, int count)
99 ssize_t total_len = iov_total_len(iov, count);
103 ret = writev(sk, iov, count);
110 if (ret >= iov->iov_len) {
115 iov->iov_base += ret;
121 else if (errno == EAGAIN || errno == EINTR)
125 } while (!exit_backend);
136 int fio_send_data(int sk, const void *p, unsigned int len)
138 struct iovec iov = { .iov_base = (void *) p, .iov_len = len };
140 assert(len <= sizeof(struct fio_net_cmd) + FIO_SERVER_MAX_FRAGMENT_PDU);
142 return fio_sendv_data(sk, &iov, 1);
145 int fio_recv_data(int sk, void *p, unsigned int len)
148 int ret = recv(sk, p, len, MSG_WAITALL);
158 else if (errno == EAGAIN || errno == EINTR)
162 } while (!exit_backend);
170 static int verify_convert_cmd(struct fio_net_cmd *cmd)
174 cmd->cmd_crc16 = le16_to_cpu(cmd->cmd_crc16);
175 cmd->pdu_crc16 = le16_to_cpu(cmd->pdu_crc16);
177 crc = fio_crc16(cmd, FIO_NET_CMD_CRC_SZ);
178 if (crc != cmd->cmd_crc16) {
179 log_err("fio: server bad crc on command (got %x, wanted %x)\n",
180 cmd->cmd_crc16, crc);
184 cmd->version = le16_to_cpu(cmd->version);
185 cmd->opcode = le16_to_cpu(cmd->opcode);
186 cmd->flags = le32_to_cpu(cmd->flags);
187 cmd->tag = le64_to_cpu(cmd->tag);
188 cmd->pdu_len = le32_to_cpu(cmd->pdu_len);
190 switch (cmd->version) {
194 log_err("fio: bad server cmd version %d\n", cmd->version);
198 if (cmd->pdu_len > FIO_SERVER_MAX_FRAGMENT_PDU) {
199 log_err("fio: command payload too large: %u\n", cmd->pdu_len);
207 * Read (and defragment, if necessary) incoming commands
209 struct fio_net_cmd *fio_net_recv_cmd(int sk)
211 struct fio_net_cmd cmd, *cmdret = NULL;
212 size_t cmd_size = 0, pdu_offset = 0;
218 ret = fio_recv_data(sk, &cmd, sizeof(cmd));
222 /* We have a command, verify it and swap if need be */
223 ret = verify_convert_cmd(&cmd);
228 /* if this is text, add room for \0 at the end */
229 cmd_size = sizeof(cmd) + cmd.pdu_len + 1;
232 cmd_size += cmd.pdu_len;
234 cmdret = realloc(cmdret, cmd_size);
237 memcpy(cmdret, &cmd, sizeof(cmd));
238 else if (cmdret->opcode != cmd.opcode) {
239 log_err("fio: fragment opcode mismatch (%d != %d)\n",
240 cmdret->opcode, cmd.opcode);
248 /* There's payload, get it */
249 pdu = (void *) cmdret->payload + pdu_offset;
250 ret = fio_recv_data(sk, pdu, cmd.pdu_len);
254 /* Verify payload crc */
255 crc = fio_crc16(pdu, cmd.pdu_len);
256 if (crc != cmd.pdu_crc16) {
257 log_err("fio: server bad crc on payload ");
258 log_err("(got %x, wanted %x)\n", cmd.pdu_crc16, crc);
263 pdu_offset += cmd.pdu_len;
265 cmdret->pdu_len += cmd.pdu_len;
267 } while (cmd.flags & FIO_NET_CMD_F_MORE);
273 /* zero-terminate text input */
274 if (cmdret->pdu_len) {
275 if (cmdret->opcode == FIO_NET_CMD_TEXT) {
276 struct cmd_text_pdu *pdu = (struct cmd_text_pdu *) cmdret->payload;
277 char *buf = (char *) pdu->buf;
279 buf[pdu->buf_len ] = '\0';
280 } else if (cmdret->opcode == FIO_NET_CMD_JOB) {
281 struct cmd_job_pdu *pdu = (struct cmd_job_pdu *) cmdret->payload;
282 char *buf = (char *) pdu->buf;
283 int len = le32_to_cpu(pdu->buf_len);
289 /* frag flag is internal */
290 cmdret->flags &= ~FIO_NET_CMD_F_MORE;
296 void fio_net_cmd_crc_pdu(struct fio_net_cmd *cmd, const void *pdu)
300 cmd->cmd_crc16 = __cpu_to_le16(fio_crc16(cmd, FIO_NET_CMD_CRC_SZ));
302 pdu_len = le32_to_cpu(cmd->pdu_len);
303 cmd->pdu_crc16 = __cpu_to_le16(fio_crc16(pdu, pdu_len));
306 void fio_net_cmd_crc(struct fio_net_cmd *cmd)
308 fio_net_cmd_crc_pdu(cmd, cmd->payload);
311 int fio_net_send_cmd(int fd, uint16_t opcode, const void *buf, off_t size,
314 struct fio_net_cmd *cmd = NULL;
315 size_t this_len, cur_len = 0;
320 if (this_len > FIO_SERVER_MAX_FRAGMENT_PDU)
321 this_len = FIO_SERVER_MAX_FRAGMENT_PDU;
323 if (!cmd || cur_len < sizeof(*cmd) + this_len) {
327 cur_len = sizeof(*cmd) + this_len;
328 cmd = malloc(cur_len);
331 fio_init_net_cmd(cmd, opcode, buf, this_len, tag);
334 cmd->flags = __cpu_to_le32(FIO_NET_CMD_F_MORE);
336 fio_net_cmd_crc(cmd);
338 ret = fio_send_data(fd, cmd, sizeof(*cmd) + this_len);
341 } while (!ret && size);
349 static int fio_net_send_simple_stack_cmd(int sk, uint16_t opcode, uint64_t tag)
351 struct fio_net_cmd cmd;
353 fio_init_net_cmd(&cmd, opcode, NULL, 0, tag);
354 fio_net_cmd_crc(&cmd);
356 return fio_send_data(sk, &cmd, sizeof(cmd));
360 * If 'list' is non-NULL, then allocate and store the sent command for
361 * later verification.
363 int fio_net_send_simple_cmd(int sk, uint16_t opcode, uint64_t tag,
364 struct flist_head *list)
366 struct fio_net_int_cmd *cmd;
370 return fio_net_send_simple_stack_cmd(sk, opcode, tag);
372 cmd = malloc(sizeof(*cmd));
374 fio_init_net_cmd(&cmd->cmd, opcode, NULL, 0, (uintptr_t) cmd);
375 fio_net_cmd_crc(&cmd->cmd);
377 INIT_FLIST_HEAD(&cmd->list);
378 gettimeofday(&cmd->tv, NULL);
379 cmd->saved_tag = tag;
381 ret = fio_send_data(sk, &cmd->cmd, sizeof(cmd->cmd));
387 flist_add_tail(&cmd->list, list);
391 int fio_net_send_quit(int sk)
393 dprint(FD_NET, "server: sending quit\n");
395 return fio_net_send_simple_cmd(sk, FIO_NET_CMD_QUIT, 0, NULL);
398 int fio_net_send_stop(int sk, int error, int signal)
400 struct cmd_end_pdu epdu;
402 dprint(FD_NET, "server: sending stop (%d, %d)\n", error, signal);
404 epdu.error = __cpu_to_le32(error);
405 epdu.signal = __cpu_to_le32(signal);
406 return fio_net_send_cmd(sk, FIO_NET_CMD_STOP, &epdu, sizeof(epdu), 0);
409 static void fio_server_add_fork_item(pid_t pid, struct flist_head *list)
411 struct fio_fork_item *ffi;
413 ffi = malloc(sizeof(*ffi));
418 flist_add_tail(&ffi->list, list);
421 static void fio_server_add_conn_pid(pid_t pid)
423 dprint(FD_NET, "server: forked off connection job (pid=%u)\n", pid);
424 fio_server_add_fork_item(pid, &conn_list);
427 static void fio_server_add_job_pid(pid_t pid)
429 dprint(FD_NET, "server: forked off job job (pid=%u)\n", pid);
430 fio_server_add_fork_item(pid, &job_list);
433 static void fio_server_check_fork_item(struct fio_fork_item *ffi)
437 ret = waitpid(ffi->pid, &status, WNOHANG);
439 if (errno == ECHILD) {
440 log_err("fio: connection pid %u disappeared\n", ffi->pid);
443 log_err("fio: waitpid: %s\n", strerror(errno));
444 } else if (ret == ffi->pid) {
445 if (WIFSIGNALED(status)) {
446 ffi->signal = WTERMSIG(status);
449 if (WIFEXITED(status)) {
450 if (WEXITSTATUS(status))
451 ffi->exitval = WEXITSTATUS(status);
457 static void fio_server_fork_item_done(struct fio_fork_item *ffi)
459 dprint(FD_NET, "pid %u exited, sig=%u, exitval=%d\n", ffi->pid, ffi->signal, ffi->exitval);
462 * Fold STOP and QUIT...
464 fio_net_send_stop(server_fd, ffi->exitval, ffi->signal);
465 fio_net_send_quit(server_fd);
466 flist_del(&ffi->list);
470 static void fio_server_check_fork_items(struct flist_head *list, int bla)
472 struct flist_head *entry, *tmp;
473 struct fio_fork_item *ffi;
475 flist_for_each_safe(entry, tmp, list) {
476 ffi = flist_entry(entry, struct fio_fork_item, list);
478 fio_server_check_fork_item(ffi);
481 fio_server_fork_item_done(ffi);
485 static void fio_server_check_jobs(void)
487 fio_server_check_fork_items(&job_list, 0);
490 static void fio_server_check_conns(void)
492 fio_server_check_fork_items(&conn_list, 1);
495 static int handle_run_cmd(struct fio_net_cmd *cmd)
504 fio_server_add_job_pid(pid);
512 static int handle_job_cmd(struct fio_net_cmd *cmd)
514 struct cmd_job_pdu *pdu = (struct cmd_job_pdu *) cmd->payload;
515 void *buf = pdu->buf;
516 struct cmd_start_pdu spdu;
518 pdu->buf_len = le32_to_cpu(pdu->buf_len);
519 pdu->client_type = le32_to_cpu(pdu->client_type);
521 if (parse_jobs_ini(buf, 1, 0, pdu->client_type)) {
522 fio_net_send_quit(server_fd);
526 spdu.jobs = cpu_to_le32(thread_number);
527 fio_net_send_cmd(server_fd, FIO_NET_CMD_START, &spdu, sizeof(spdu), 0);
531 static int handle_jobline_cmd(struct fio_net_cmd *cmd)
533 void *pdu = cmd->payload;
534 struct cmd_single_line_pdu *cslp;
535 struct cmd_line_pdu *clp;
536 unsigned long offset;
537 struct cmd_start_pdu spdu;
542 clp->lines = le16_to_cpu(clp->lines);
543 clp->client_type = le16_to_cpu(clp->client_type);
544 argv = malloc(clp->lines * sizeof(char *));
545 offset = sizeof(*clp);
547 dprint(FD_NET, "server: %d command line args\n", clp->lines);
549 for (i = 0; i < clp->lines; i++) {
551 argv[i] = (char *) cslp->text;
553 offset += sizeof(*cslp) + le16_to_cpu(cslp->len);
554 dprint(FD_NET, "server: %d: %s\n", i, argv[i]);
557 if (parse_cmd_line(clp->lines, argv, clp->client_type)) {
558 fio_net_send_quit(server_fd);
565 spdu.jobs = cpu_to_le32(thread_number);
566 fio_net_send_cmd(server_fd, FIO_NET_CMD_START, &spdu, sizeof(spdu), 0);
570 static int handle_probe_cmd(struct fio_net_cmd *cmd)
572 struct cmd_probe_pdu probe;
574 dprint(FD_NET, "server: sending probe reply\n");
576 memset(&probe, 0, sizeof(probe));
577 gethostname((char *) probe.hostname, sizeof(probe.hostname));
578 #ifdef FIO_BIG_ENDIAN
581 probe.fio_major = FIO_MAJOR;
582 probe.fio_minor = FIO_MINOR;
583 probe.fio_patch = FIO_PATCH;
586 probe.arch = FIO_ARCH;
588 probe.bpp = sizeof(void *);
590 return fio_net_send_cmd(server_fd, FIO_NET_CMD_PROBE, &probe, sizeof(probe), cmd->tag);
593 static int handle_send_eta_cmd(struct fio_net_cmd *cmd)
602 size = sizeof(*je) + thread_number * sizeof(char) + 1;
606 if (!calc_thread_status(je, 1)) {
611 dprint(FD_NET, "server sending status\n");
613 je->nr_running = cpu_to_le32(je->nr_running);
614 je->nr_ramp = cpu_to_le32(je->nr_ramp);
615 je->nr_pending = cpu_to_le32(je->nr_pending);
616 je->files_open = cpu_to_le32(je->files_open);
618 for (i = 0; i < 2; i++) {
619 je->m_rate[i] = cpu_to_le32(je->m_rate[i]);
620 je->t_rate[i] = cpu_to_le32(je->t_rate[i]);
621 je->m_iops[i] = cpu_to_le32(je->m_iops[i]);
622 je->t_iops[i] = cpu_to_le32(je->t_iops[i]);
623 je->rate[i] = cpu_to_le32(je->rate[i]);
624 je->iops[i] = cpu_to_le32(je->iops[i]);
627 je->elapsed_sec = cpu_to_le64(je->elapsed_sec);
628 je->eta_sec = cpu_to_le64(je->eta_sec);
629 je->nr_threads = cpu_to_le32(je->nr_threads);
631 fio_net_send_cmd(server_fd, FIO_NET_CMD_ETA, je, size, cmd->tag);
636 static int handle_command(struct fio_net_cmd *cmd)
640 dprint(FD_NET, "server: got op [%s], pdu=%u, tag=%lx\n",
641 fio_server_op(cmd->opcode), cmd->pdu_len, cmd->tag);
643 switch (cmd->opcode) {
644 case FIO_NET_CMD_QUIT:
645 fio_terminate_threads(TERMINATE_ALL);
647 case FIO_NET_CMD_EXIT:
650 case FIO_NET_CMD_JOB:
651 ret = handle_job_cmd(cmd);
653 case FIO_NET_CMD_JOBLINE:
654 ret = handle_jobline_cmd(cmd);
656 case FIO_NET_CMD_PROBE:
657 ret = handle_probe_cmd(cmd);
659 case FIO_NET_CMD_SEND_ETA:
660 ret = handle_send_eta_cmd(cmd);
662 case FIO_NET_CMD_RUN:
663 ret = handle_run_cmd(cmd);
666 log_err("fio: unknown opcode: %s\n",fio_server_op(cmd->opcode));
673 static int handle_connection(int sk)
675 struct fio_net_cmd *cmd = NULL;
679 INIT_FLIST_HEAD(&job_list);
683 while (!exit_backend) {
684 struct pollfd pfd = {
691 ret = poll(&pfd, 1, 100);
695 log_err("fio: poll: %s\n", strerror(errno));
698 fio_server_check_jobs();
702 if (pfd.revents & POLLIN)
704 if (pfd.revents & (POLLERR|POLLHUP)) {
708 } while (!exit_backend);
710 fio_server_check_jobs();
715 cmd = fio_net_recv_cmd(sk);
721 ret = handle_command(cmd);
736 static int accept_loop(int listen_sk)
738 struct sockaddr_in addr;
739 fio_socklen_t len = sizeof(addr);
741 int ret = 0, sk, flags, exitval = 0;
743 dprint(FD_NET, "server enter accept loop\n");
745 flags = fcntl(listen_sk, F_GETFL);
747 fcntl(listen_sk, F_SETFL, flags);
749 while (!exit_backend) {
755 ret = poll(&pfd, 1, 100);
759 log_err("fio: poll: %s\n", strerror(errno));
762 fio_server_check_conns();
766 if (pfd.revents & POLLIN)
768 } while (!exit_backend);
770 fio_server_check_conns();
772 if (exit_backend || ret < 0)
775 sk = accept(listen_sk, (struct sockaddr *) &addr, &len);
777 log_err("fio: accept: %s\n", strerror(errno));
781 dprint(FD_NET, "server: connect from %s\n", inet_ntoa(addr.sin_addr));
786 fio_server_add_conn_pid(pid);
791 handle_connection(sk);
797 int fio_server_text_output(int level, const char *buf, size_t len)
799 struct cmd_text_pdu *pdu;
804 return log_local_buf(buf, len);
806 tlen = sizeof(*pdu) + len;
809 pdu->level = __cpu_to_le32(level);
810 pdu->buf_len = __cpu_to_le32(len);
812 gettimeofday(&tv, NULL);
813 pdu->log_sec = __cpu_to_le64(tv.tv_sec);
814 pdu->log_usec = __cpu_to_le64(tv.tv_usec);
816 memcpy(pdu->buf, buf, len);
818 fio_net_send_cmd(server_fd, FIO_NET_CMD_TEXT, pdu, tlen, 0);
823 static void convert_io_stat(struct io_stat *dst, struct io_stat *src)
825 dst->max_val = cpu_to_le64(src->max_val);
826 dst->min_val = cpu_to_le64(src->min_val);
827 dst->samples = cpu_to_le64(src->samples);
830 * Encode to IEEE 754 for network transfer
832 dst->mean.u.i = __cpu_to_le64(fio_double_to_uint64(src->mean.u.f));
833 dst->S.u.i = __cpu_to_le64(fio_double_to_uint64(src->S.u.f));
836 static void convert_gs(struct group_run_stats *dst, struct group_run_stats *src)
840 for (i = 0; i < 2; i++) {
841 dst->max_run[i] = cpu_to_le64(src->max_run[i]);
842 dst->min_run[i] = cpu_to_le64(src->min_run[i]);
843 dst->max_bw[i] = cpu_to_le64(src->max_bw[i]);
844 dst->min_bw[i] = cpu_to_le64(src->min_bw[i]);
845 dst->io_kb[i] = cpu_to_le64(src->io_kb[i]);
846 dst->agg[i] = cpu_to_le64(src->agg[i]);
849 dst->kb_base = cpu_to_le32(src->kb_base);
850 dst->groupid = cpu_to_le32(src->groupid);
854 * Send a CMD_TS, which packs struct thread_stat and group_run_stats
855 * into a single payload.
857 void fio_server_send_ts(struct thread_stat *ts, struct group_run_stats *rs)
862 dprint(FD_NET, "server sending end stats\n");
864 memset(&p, 0, sizeof(p));
866 strcpy(p.ts.name, ts->name);
867 strcpy(p.ts.verror, ts->verror);
868 strcpy(p.ts.description, ts->description);
870 p.ts.error = cpu_to_le32(ts->error);
871 p.ts.thread_number = cpu_to_le32(ts->thread_number);
872 p.ts.groupid = cpu_to_le32(ts->groupid);
873 p.ts.pid = cpu_to_le32(ts->pid);
874 p.ts.members = cpu_to_le32(ts->members);
876 for (i = 0; i < 2; i++) {
877 convert_io_stat(&p.ts.clat_stat[i], &ts->clat_stat[i]);
878 convert_io_stat(&p.ts.slat_stat[i], &ts->slat_stat[i]);
879 convert_io_stat(&p.ts.lat_stat[i], &ts->lat_stat[i]);
880 convert_io_stat(&p.ts.bw_stat[i], &ts->bw_stat[i]);
883 p.ts.usr_time = cpu_to_le64(ts->usr_time);
884 p.ts.sys_time = cpu_to_le64(ts->sys_time);
885 p.ts.ctx = cpu_to_le64(ts->ctx);
886 p.ts.minf = cpu_to_le64(ts->minf);
887 p.ts.majf = cpu_to_le64(ts->majf);
888 p.ts.clat_percentiles = cpu_to_le64(ts->clat_percentiles);
890 for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) {
891 fio_fp64_t *src = &ts->percentile_list[i];
892 fio_fp64_t *dst = &p.ts.percentile_list[i];
894 dst->u.i = __cpu_to_le64(fio_double_to_uint64(src->u.f));
897 for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
898 p.ts.io_u_map[i] = cpu_to_le32(ts->io_u_map[i]);
899 p.ts.io_u_submit[i] = cpu_to_le32(ts->io_u_submit[i]);
900 p.ts.io_u_complete[i] = cpu_to_le32(ts->io_u_complete[i]);
903 for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) {
904 p.ts.io_u_lat_u[i] = cpu_to_le32(ts->io_u_lat_u[i]);
905 p.ts.io_u_lat_m[i] = cpu_to_le32(ts->io_u_lat_m[i]);
908 for (i = 0; i < 2; i++)
909 for (j = 0; j < FIO_IO_U_PLAT_NR; j++)
910 p.ts.io_u_plat[i][j] = cpu_to_le32(ts->io_u_plat[i][j]);
912 for (i = 0; i < 3; i++) {
913 p.ts.total_io_u[i] = cpu_to_le64(ts->total_io_u[i]);
914 p.ts.short_io_u[i] = cpu_to_le64(ts->short_io_u[i]);
917 p.ts.total_submit = cpu_to_le64(ts->total_submit);
918 p.ts.total_complete = cpu_to_le64(ts->total_complete);
920 for (i = 0; i < 2; i++) {
921 p.ts.io_bytes[i] = cpu_to_le64(ts->io_bytes[i]);
922 p.ts.runtime[i] = cpu_to_le64(ts->runtime[i]);
925 p.ts.total_run_time = cpu_to_le64(ts->total_run_time);
926 p.ts.continue_on_error = cpu_to_le16(ts->continue_on_error);
927 p.ts.total_err_count = cpu_to_le64(ts->total_err_count);
928 p.ts.first_error = cpu_to_le32(ts->first_error);
929 p.ts.kb_base = cpu_to_le32(ts->kb_base);
931 convert_gs(&p.rs, rs);
933 fio_net_send_cmd(server_fd, FIO_NET_CMD_TS, &p, sizeof(p), 0);
936 void fio_server_send_gs(struct group_run_stats *rs)
938 struct group_run_stats gs;
940 dprint(FD_NET, "server sending group run stats\n");
943 fio_net_send_cmd(server_fd, FIO_NET_CMD_GS, &gs, sizeof(gs), 0);
946 static void convert_agg(struct disk_util_agg *dst, struct disk_util_agg *src)
950 for (i = 0; i < 2; i++) {
951 dst->ios[i] = cpu_to_le32(src->ios[i]);
952 dst->merges[i] = cpu_to_le32(src->merges[i]);
953 dst->sectors[i] = cpu_to_le64(src->sectors[i]);
954 dst->ticks[i] = cpu_to_le32(src->ticks[i]);
957 dst->io_ticks = cpu_to_le32(src->io_ticks);
958 dst->time_in_queue = cpu_to_le32(src->time_in_queue);
959 dst->slavecount = cpu_to_le32(src->slavecount);
960 dst->max_util.u.i = __cpu_to_le64(fio_double_to_uint64(src->max_util.u.f));
963 static void convert_dus(struct disk_util_stat *dst, struct disk_util_stat *src)
967 strcpy((char *) dst->name, (char *) src->name);
969 for (i = 0; i < 2; i++) {
970 dst->ios[i] = cpu_to_le32(src->ios[i]);
971 dst->merges[i] = cpu_to_le32(src->merges[i]);
972 dst->sectors[i] = cpu_to_le64(src->sectors[i]);
973 dst->ticks[i] = cpu_to_le32(src->ticks[i]);
976 dst->io_ticks = cpu_to_le32(src->io_ticks);
977 dst->time_in_queue = cpu_to_le32(src->time_in_queue);
978 dst->msec = cpu_to_le64(src->msec);
981 void fio_server_send_du(void)
983 struct disk_util *du;
984 struct flist_head *entry;
985 struct cmd_du_pdu pdu;
987 dprint(FD_NET, "server: sending disk_util %d\n", !flist_empty(&disk_list));
989 memset(&pdu, 0, sizeof(pdu));
991 flist_for_each(entry, &disk_list) {
992 du = flist_entry(entry, struct disk_util, list);
994 convert_dus(&pdu.dus, &du->dus);
995 convert_agg(&pdu.agg, &du->agg);
997 fio_net_send_cmd(server_fd, FIO_NET_CMD_DU, &pdu, sizeof(pdu), 0);
1002 * Send a command with a separate PDU, not inlined in the command
1004 static int fio_send_cmd_ext_pdu(int sk, uint16_t opcode, const void *buf,
1005 off_t size, uint64_t tag, uint32_t flags)
1007 struct fio_net_cmd cmd;
1008 struct iovec iov[2];
1010 iov[0].iov_base = &cmd;
1011 iov[0].iov_len = sizeof(cmd);
1012 iov[1].iov_base = (void *) buf;
1013 iov[1].iov_len = size;
1015 __fio_init_net_cmd(&cmd, opcode, size, tag);
1016 cmd.flags = __cpu_to_le32(flags);
1017 fio_net_cmd_crc_pdu(&cmd, buf);
1019 return fio_sendv_data(sk, iov, 2);
1022 int fio_send_iolog(struct thread_data *td, struct io_log *log, const char *name)
1024 struct cmd_iolog_pdu pdu;
1029 pdu.thread_number = cpu_to_le32(td->thread_number);
1030 pdu.nr_samples = __cpu_to_le32(log->nr_samples);
1031 pdu.log_type = cpu_to_le32(log->log_type);
1032 strcpy((char *) pdu.name, name);
1034 for (i = 0; i < log->nr_samples; i++) {
1035 struct io_sample *s = &log->log[i];
1037 s->time = cpu_to_le64(s->time);
1038 s->val = cpu_to_le64(s->val);
1039 s->ddir = cpu_to_le32(s->ddir);
1040 s->bs = cpu_to_le32(s->bs);
1044 * Dirty - since the log is potentially huge, compress it into
1045 * FIO_SERVER_MAX_FRAGMENT_PDU chunks and let the receiving
1046 * side defragment it.
1048 out_pdu = malloc(FIO_SERVER_MAX_FRAGMENT_PDU);
1050 stream.zalloc = Z_NULL;
1051 stream.zfree = Z_NULL;
1052 stream.opaque = Z_NULL;
1054 if (deflateInit(&stream, Z_DEFAULT_COMPRESSION) != Z_OK) {
1060 * Send header first, it's not compressed.
1062 ret = fio_send_cmd_ext_pdu(server_fd, FIO_NET_CMD_IOLOG, &pdu,
1063 sizeof(pdu), 0, FIO_NET_CMD_F_MORE);
1067 stream.next_in = (void *) log->log;
1068 stream.avail_in = log->nr_samples * sizeof(struct io_sample);
1071 unsigned int this_len, flags = 0;
1074 stream.avail_out = FIO_SERVER_MAX_FRAGMENT_PDU;
1075 stream.next_out = out_pdu;
1076 ret = deflate(&stream, Z_FINISH);
1077 /* may be Z_OK, or Z_STREAM_END */
1081 this_len = FIO_SERVER_MAX_FRAGMENT_PDU - stream.avail_out;
1083 if (stream.avail_in)
1084 flags = FIO_NET_CMD_F_MORE;
1086 ret = fio_send_cmd_ext_pdu(server_fd, FIO_NET_CMD_IOLOG,
1087 out_pdu, this_len, 0, flags);
1090 } while (stream.avail_in);
1093 deflateEnd(&stream);
1099 void fio_server_send_add_job(struct thread_data *td)
1101 struct cmd_add_job_pdu pdu;
1103 memset(&pdu, 0, sizeof(pdu));
1104 pdu.thread_number = cpu_to_le32(td->thread_number);
1105 pdu.groupid = cpu_to_le32(td->groupid);
1106 convert_thread_options_to_net(&pdu.top, &td->o);
1108 fio_net_send_cmd(server_fd, FIO_NET_CMD_ADD_JOB, &pdu, sizeof(pdu), 0);
1111 void fio_server_send_start(struct thread_data *td)
1113 assert(server_fd != -1);
1115 fio_net_send_simple_cmd(server_fd, FIO_NET_CMD_SERVER_START, 0, NULL);
1118 static int fio_init_server_ip(void)
1120 struct sockaddr *addr;
1121 fio_socklen_t socklen;
1125 sk = socket(AF_INET6, SOCK_STREAM, 0);
1127 sk = socket(AF_INET, SOCK_STREAM, 0);
1130 log_err("fio: socket: %s\n", strerror(errno));
1135 if (setsockopt(sk, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt)) < 0) {
1136 log_err("fio: setsockopt: %s\n", strerror(errno));
1141 if (setsockopt(sk, SOL_SOCKET, SO_REUSEPORT, &opt, sizeof(opt)) < 0) {
1142 log_err("fio: setsockopt: %s\n", strerror(errno));
1149 addr = (struct sockaddr *) &saddr_in6;
1150 socklen = sizeof(saddr_in6);
1151 saddr_in6.sin6_family = AF_INET6;
1153 addr = (struct sockaddr *) &saddr_in;
1154 socklen = sizeof(saddr_in);
1155 saddr_in.sin_family = AF_INET;
1158 if (bind(sk, addr, socklen) < 0) {
1159 log_err("fio: bind: %s\n", strerror(errno));
1167 static int fio_init_server_sock(void)
1169 struct sockaddr_un addr;
1174 sk = socket(AF_UNIX, SOCK_STREAM, 0);
1176 log_err("fio: socket: %s\n", strerror(errno));
1182 memset(&addr, 0, sizeof(addr));
1183 addr.sun_family = AF_UNIX;
1184 strcpy(addr.sun_path, bind_sock);
1187 len = sizeof(addr.sun_family) + strlen(bind_sock) + 1;
1189 if (bind(sk, (struct sockaddr *) &addr, len) < 0) {
1190 log_err("fio: bind: %s\n", strerror(errno));
1199 static int fio_init_server_connection(void)
1204 dprint(FD_NET, "starting server\n");
1207 sk = fio_init_server_ip();
1209 sk = fio_init_server_sock();
1221 src = &saddr_in6.sin6_addr;
1224 src = &saddr_in.sin_addr;
1227 p = (char *) inet_ntop(af, src, bind_str, sizeof(bind_str));
1229 sprintf(port, ",%u", fio_net_port);
1233 strcpy(bind_str, port);
1235 strcpy(bind_str, bind_sock);
1237 log_info("fio: server listening on %s\n", bind_str);
1239 if (listen(sk, 0) < 0) {
1240 log_err("fio: listen: %s\n", strerror(errno));
1247 int fio_server_parse_host(const char *host, int *ipv6, struct in_addr *inp,
1248 struct in6_addr *inp6)
1254 ret = inet_pton(AF_INET6, host, inp6);
1256 ret = inet_pton(AF_INET, host, inp);
1259 struct hostent *hent;
1261 hent = gethostbyname(host);
1263 log_err("fio: failed to resolve <%s>\n", host);
1268 if (hent->h_addrtype != AF_INET6) {
1269 log_info("fio: falling back to IPv4\n");
1272 memcpy(inp6, hent->h_addr_list[0], 16);
1275 if (hent->h_addrtype != AF_INET) {
1276 log_err("fio: lookup type mismatch\n");
1279 memcpy(inp, hent->h_addr_list[0], 4);
1288 * Parse a host/ip/port string. Reads from 'str'.
1293 * *ptr is the host, *port is the port, inp is the destination.
1295 * *ptr is the host, *port is the port, inp6 is the dest, and *ipv6 is 1.
1296 * For local domain sockets:
1297 * *ptr is the filename, *is_sock is 1.
1299 int fio_server_parse_string(const char *str, char **ptr, int *is_sock,
1300 int *port, struct in_addr *inp,
1301 struct in6_addr *inp6, int *ipv6)
1303 const char *host = str;
1309 *port = fio_net_port;
1312 if (!strncmp(str, "sock:", 5)) {
1313 *ptr = strdup(str + 5);
1320 * Is it ip:<ip or host>:port
1322 if (!strncmp(host, "ip:", 3))
1324 else if (!strncmp(host, "ip4:", 4))
1326 else if (!strncmp(host, "ip6:", 4)) {
1329 } else if (host[0] == ':') {
1330 /* String is :port */
1333 if (!lport || lport > 65535) {
1334 log_err("fio: bad server port %u\n", port);
1337 /* no hostname given, we are done */
1343 * If no port seen yet, check if there's a last ':' at the end
1346 portp = strchr(host, ',');
1350 lport = atoi(portp);
1351 if (!lport || lport > 65535) {
1352 log_err("fio: bad server port %u\n", port);
1364 *ptr = strdup(host);
1366 if (fio_server_parse_host(*ptr, ipv6, inp, inp6)) {
1373 *port = fio_net_port;
1379 * Server arg should be one of:
1381 * sock:/path/to/socket
1385 * Where sock uses unix domain sockets, and ip binds the server to
1386 * a specific interface. If no arguments are given to the server, it
1387 * uses IP and binds to 0.0.0.0.
1390 static int fio_handle_server_arg(void)
1392 int port = fio_net_port;
1393 int is_sock, ret = 0;
1395 saddr_in.sin_addr.s_addr = htonl(INADDR_ANY);
1397 if (!fio_server_arg)
1400 ret = fio_server_parse_string(fio_server_arg, &bind_sock, &is_sock,
1401 &port, &saddr_in.sin_addr,
1402 &saddr_in6.sin6_addr, &use_ipv6);
1404 if (!is_sock && bind_sock) {
1410 fio_net_port = port;
1411 saddr_in.sin_port = htons(port);
1412 saddr_in6.sin6_port = htons(port);
1416 static int fio_server(void)
1420 dprint(FD_NET, "starting server\n");
1422 if (fio_handle_server_arg())
1425 sk = fio_init_server_connection();
1429 ret = accept_loop(sk);
1433 if (fio_server_arg) {
1434 free(fio_server_arg);
1435 fio_server_arg = NULL;
1443 void fio_server_got_signal(int signal)
1445 if (signal == SIGPIPE)
1448 log_info("\nfio: terminating on signal %d\n", signal);
1453 static int check_existing_pidfile(const char *pidfile)
1460 if (stat(pidfile, &sb))
1463 f = fopen(pidfile, "r");
1467 if (fread(buf, sb.st_size, 1, f) <= 0) {
1474 if (kill(pid, SIGCONT) < 0)
1475 return errno != ESRCH;
1480 static int write_pid(pid_t pid, const char *pidfile)
1484 fpid = fopen(pidfile, "w");
1486 log_err("fio: failed opening pid file %s\n", pidfile);
1490 fprintf(fpid, "%u\n", (unsigned int) pid);
1496 * If pidfile is specified, background us.
1498 int fio_start_server(char *pidfile)
1505 WSAStartup(MAKEWORD(2,2), &wsd);
1509 return fio_server();
1511 if (check_existing_pidfile(pidfile)) {
1512 log_err("fio: pidfile %s exists and server appears alive\n",
1519 log_err("fio: failed server fork: %s", strerror(errno));
1523 int ret = write_pid(pid, pidfile);
1529 openlog("fio", LOG_NDELAY|LOG_NOWAIT|LOG_PID, LOG_USER);
1531 close(STDIN_FILENO);
1532 close(STDOUT_FILENO);
1533 close(STDERR_FILENO);
1545 void fio_server_set_arg(const char *arg)
1547 fio_server_arg = strdup(arg);