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 static void add_reply(uint64_t tag, struct flist_head *list)
298 struct fio_net_cmd_reply *reply = (struct fio_net_cmd_reply *) tag;
300 flist_add_tail(&reply->list, list);
303 static uint64_t alloc_reply(uint64_t tag, uint16_t opcode)
305 struct fio_net_cmd_reply *reply;
307 reply = calloc(1, sizeof(*reply));
308 INIT_FLIST_HEAD(&reply->list);
309 gettimeofday(&reply->tv, NULL);
310 reply->saved_tag = tag;
311 reply->opcode = opcode;
313 return (uintptr_t) reply;
316 static void free_reply(uint64_t tag)
318 struct fio_net_cmd_reply *reply = (struct fio_net_cmd_reply *) tag;
323 void fio_net_cmd_crc_pdu(struct fio_net_cmd *cmd, const void *pdu)
327 cmd->cmd_crc16 = __cpu_to_le16(fio_crc16(cmd, FIO_NET_CMD_CRC_SZ));
329 pdu_len = le32_to_cpu(cmd->pdu_len);
330 cmd->pdu_crc16 = __cpu_to_le16(fio_crc16(pdu, pdu_len));
333 void fio_net_cmd_crc(struct fio_net_cmd *cmd)
335 fio_net_cmd_crc_pdu(cmd, cmd->payload);
338 int fio_net_send_cmd(int fd, uint16_t opcode, const void *buf, off_t size,
339 uint64_t *tagptr, struct flist_head *list)
341 struct fio_net_cmd *cmd = NULL;
342 size_t this_len, cur_len = 0;
348 tag = *tagptr = alloc_reply(*tagptr, opcode);
350 tag = tagptr ? *tagptr : 0;
354 if (this_len > FIO_SERVER_MAX_FRAGMENT_PDU)
355 this_len = FIO_SERVER_MAX_FRAGMENT_PDU;
357 if (!cmd || cur_len < sizeof(*cmd) + this_len) {
361 cur_len = sizeof(*cmd) + this_len;
362 cmd = malloc(cur_len);
365 fio_init_net_cmd(cmd, opcode, buf, this_len, tag);
368 cmd->flags = __cpu_to_le32(FIO_NET_CMD_F_MORE);
370 fio_net_cmd_crc(cmd);
372 ret = fio_send_data(fd, cmd, sizeof(*cmd) + this_len);
375 } while (!ret && size);
381 add_reply(tag, list);
390 static int fio_net_send_simple_stack_cmd(int sk, uint16_t opcode, uint64_t tag)
392 struct fio_net_cmd cmd;
394 fio_init_net_cmd(&cmd, opcode, NULL, 0, tag);
395 fio_net_cmd_crc(&cmd);
397 return fio_send_data(sk, &cmd, sizeof(cmd));
401 * If 'list' is non-NULL, then allocate and store the sent command for
402 * later verification.
404 int fio_net_send_simple_cmd(int sk, uint16_t opcode, uint64_t tag,
405 struct flist_head *list)
410 tag = alloc_reply(tag, opcode);
412 ret = fio_net_send_simple_stack_cmd(sk, opcode, tag);
421 add_reply(tag, list);
426 int fio_net_send_quit(int sk)
428 dprint(FD_NET, "server: sending quit\n");
430 return fio_net_send_simple_cmd(sk, FIO_NET_CMD_QUIT, 0, NULL);
433 static int fio_net_send_ack(int sk, struct fio_net_cmd *cmd, int error,
436 struct cmd_end_pdu epdu;
442 epdu.error = __cpu_to_le32(error);
443 epdu.signal = __cpu_to_le32(signal);
444 return fio_net_send_cmd(sk, FIO_NET_CMD_STOP, &epdu, sizeof(epdu), &tag, NULL);
447 int fio_net_send_stop(int sk, int error, int signal)
449 dprint(FD_NET, "server: sending stop (%d, %d)\n", error, signal);
450 return fio_net_send_ack(sk, NULL, error, signal);
453 static void fio_server_add_fork_item(pid_t pid, struct flist_head *list)
455 struct fio_fork_item *ffi;
457 ffi = malloc(sizeof(*ffi));
462 flist_add_tail(&ffi->list, list);
465 static void fio_server_add_conn_pid(pid_t pid)
467 dprint(FD_NET, "server: forked off connection job (pid=%u)\n", pid);
468 fio_server_add_fork_item(pid, &conn_list);
471 static void fio_server_add_job_pid(pid_t pid)
473 dprint(FD_NET, "server: forked off job job (pid=%u)\n", pid);
474 fio_server_add_fork_item(pid, &job_list);
477 static void fio_server_check_fork_item(struct fio_fork_item *ffi)
481 ret = waitpid(ffi->pid, &status, WNOHANG);
483 if (errno == ECHILD) {
484 log_err("fio: connection pid %u disappeared\n", ffi->pid);
487 log_err("fio: waitpid: %s\n", strerror(errno));
488 } else if (ret == ffi->pid) {
489 if (WIFSIGNALED(status)) {
490 ffi->signal = WTERMSIG(status);
493 if (WIFEXITED(status)) {
494 if (WEXITSTATUS(status))
495 ffi->exitval = WEXITSTATUS(status);
501 static void fio_server_fork_item_done(struct fio_fork_item *ffi)
503 dprint(FD_NET, "pid %u exited, sig=%u, exitval=%d\n", ffi->pid, ffi->signal, ffi->exitval);
506 * Fold STOP and QUIT...
508 fio_net_send_stop(server_fd, ffi->exitval, ffi->signal);
509 fio_net_send_quit(server_fd);
510 flist_del(&ffi->list);
514 static void fio_server_check_fork_items(struct flist_head *list)
516 struct flist_head *entry, *tmp;
517 struct fio_fork_item *ffi;
519 flist_for_each_safe(entry, tmp, list) {
520 ffi = flist_entry(entry, struct fio_fork_item, list);
522 fio_server_check_fork_item(ffi);
525 fio_server_fork_item_done(ffi);
529 static void fio_server_check_jobs(void)
531 fio_server_check_fork_items(&job_list);
534 static void fio_server_check_conns(void)
536 fio_server_check_fork_items(&conn_list);
539 static int handle_run_cmd(struct fio_net_cmd *cmd)
548 fio_server_add_job_pid(pid);
556 static int handle_job_cmd(struct fio_net_cmd *cmd)
558 struct cmd_job_pdu *pdu = (struct cmd_job_pdu *) cmd->payload;
559 void *buf = pdu->buf;
560 struct cmd_start_pdu spdu;
562 pdu->buf_len = le32_to_cpu(pdu->buf_len);
563 pdu->client_type = le32_to_cpu(pdu->client_type);
565 if (parse_jobs_ini(buf, 1, 0, pdu->client_type)) {
566 fio_net_send_quit(server_fd);
570 spdu.jobs = cpu_to_le32(thread_number);
571 fio_net_send_cmd(server_fd, FIO_NET_CMD_START, &spdu, sizeof(spdu), NULL, NULL);
575 static int handle_jobline_cmd(struct fio_net_cmd *cmd)
577 void *pdu = cmd->payload;
578 struct cmd_single_line_pdu *cslp;
579 struct cmd_line_pdu *clp;
580 unsigned long offset;
581 struct cmd_start_pdu spdu;
586 clp->lines = le16_to_cpu(clp->lines);
587 clp->client_type = le16_to_cpu(clp->client_type);
588 argv = malloc(clp->lines * sizeof(char *));
589 offset = sizeof(*clp);
591 dprint(FD_NET, "server: %d command line args\n", clp->lines);
593 for (i = 0; i < clp->lines; i++) {
595 argv[i] = (char *) cslp->text;
597 offset += sizeof(*cslp) + le16_to_cpu(cslp->len);
598 dprint(FD_NET, "server: %d: %s\n", i, argv[i]);
601 if (parse_cmd_line(clp->lines, argv, clp->client_type)) {
602 fio_net_send_quit(server_fd);
609 spdu.jobs = cpu_to_le32(thread_number);
610 fio_net_send_cmd(server_fd, FIO_NET_CMD_START, &spdu, sizeof(spdu), NULL, NULL);
614 static int handle_probe_cmd(struct fio_net_cmd *cmd)
616 struct cmd_probe_pdu probe;
617 uint64_t tag = cmd->tag;
619 dprint(FD_NET, "server: sending probe reply\n");
621 memset(&probe, 0, sizeof(probe));
622 gethostname((char *) probe.hostname, sizeof(probe.hostname));
623 #ifdef FIO_BIG_ENDIAN
626 probe.fio_major = FIO_MAJOR;
627 probe.fio_minor = FIO_MINOR;
628 probe.fio_patch = FIO_PATCH;
631 probe.arch = FIO_ARCH;
633 probe.bpp = sizeof(void *);
635 return fio_net_send_cmd(server_fd, FIO_NET_CMD_PROBE, &probe, sizeof(probe), &tag, NULL);
638 static int handle_send_eta_cmd(struct fio_net_cmd *cmd)
642 uint64_t tag = cmd->tag;
648 size = sizeof(*je) + thread_number * sizeof(char) + 1;
652 if (!calc_thread_status(je, 1)) {
657 dprint(FD_NET, "server sending status\n");
659 je->nr_running = cpu_to_le32(je->nr_running);
660 je->nr_ramp = cpu_to_le32(je->nr_ramp);
661 je->nr_pending = cpu_to_le32(je->nr_pending);
662 je->files_open = cpu_to_le32(je->files_open);
664 for (i = 0; i < 2; i++) {
665 je->m_rate[i] = cpu_to_le32(je->m_rate[i]);
666 je->t_rate[i] = cpu_to_le32(je->t_rate[i]);
667 je->m_iops[i] = cpu_to_le32(je->m_iops[i]);
668 je->t_iops[i] = cpu_to_le32(je->t_iops[i]);
669 je->rate[i] = cpu_to_le32(je->rate[i]);
670 je->iops[i] = cpu_to_le32(je->iops[i]);
673 je->elapsed_sec = cpu_to_le64(je->elapsed_sec);
674 je->eta_sec = cpu_to_le64(je->eta_sec);
675 je->nr_threads = cpu_to_le32(je->nr_threads);
677 fio_net_send_cmd(server_fd, FIO_NET_CMD_ETA, je, size, &tag, NULL);
682 static int send_update_job_reply(int fd, uint64_t __tag, int error)
684 uint64_t tag = __tag;
687 pdu_error = __cpu_to_le32(error);
688 return fio_net_send_cmd(fd, FIO_NET_CMD_UPDATE_JOB, &pdu_error, sizeof(pdu_error), &tag, NULL);
691 static int handle_update_job_cmd(struct fio_net_cmd *cmd)
693 struct cmd_add_job_pdu *pdu = (struct cmd_add_job_pdu *) cmd->payload;
694 struct thread_data *td;
697 tnumber = le32_to_cpu(pdu->thread_number);
699 dprint(FD_NET, "server: updating options for job %u\n", tnumber);
701 if (!tnumber || tnumber > thread_number) {
702 send_update_job_reply(server_fd, cmd->tag, ENODEV);
706 td = &threads[tnumber - 1];
707 convert_thread_options_to_cpu(&td->o, &pdu->top);
708 send_update_job_reply(server_fd, cmd->tag, 0);
712 static int handle_command(struct fio_net_cmd *cmd)
716 dprint(FD_NET, "server: got op [%s], pdu=%u, tag=%lx\n",
717 fio_server_op(cmd->opcode), cmd->pdu_len, cmd->tag);
719 switch (cmd->opcode) {
720 case FIO_NET_CMD_QUIT:
721 fio_terminate_threads(TERMINATE_ALL);
723 case FIO_NET_CMD_EXIT:
726 case FIO_NET_CMD_JOB:
727 ret = handle_job_cmd(cmd);
729 case FIO_NET_CMD_JOBLINE:
730 ret = handle_jobline_cmd(cmd);
732 case FIO_NET_CMD_PROBE:
733 ret = handle_probe_cmd(cmd);
735 case FIO_NET_CMD_SEND_ETA:
736 ret = handle_send_eta_cmd(cmd);
738 case FIO_NET_CMD_RUN:
739 ret = handle_run_cmd(cmd);
741 case FIO_NET_CMD_UPDATE_JOB:
742 ret = handle_update_job_cmd(cmd);
745 log_err("fio: unknown opcode: %s\n", fio_server_op(cmd->opcode));
752 static int handle_connection(int sk)
754 struct fio_net_cmd *cmd = NULL;
758 INIT_FLIST_HEAD(&job_list);
762 while (!exit_backend) {
763 struct pollfd pfd = {
772 if (!flist_empty(&job_list))
775 ret = poll(&pfd, 1, timeout);
779 log_err("fio: poll: %s\n", strerror(errno));
782 fio_server_check_jobs();
786 if (pfd.revents & POLLIN)
788 if (pfd.revents & (POLLERR|POLLHUP)) {
792 } while (!exit_backend);
794 fio_server_check_jobs();
799 cmd = fio_net_recv_cmd(sk);
805 ret = handle_command(cmd);
820 static int accept_loop(int listen_sk)
822 struct sockaddr_in addr;
823 fio_socklen_t len = sizeof(addr);
825 int ret = 0, sk, flags, exitval = 0;
827 dprint(FD_NET, "server enter accept loop\n");
829 flags = fcntl(listen_sk, F_GETFL);
831 fcntl(listen_sk, F_SETFL, flags);
833 while (!exit_backend) {
841 if (!flist_empty(&conn_list))
844 ret = poll(&pfd, 1, timeout);
848 log_err("fio: poll: %s\n", strerror(errno));
851 fio_server_check_conns();
855 if (pfd.revents & POLLIN)
857 } while (!exit_backend);
859 fio_server_check_conns();
861 if (exit_backend || ret < 0)
864 sk = accept(listen_sk, (struct sockaddr *) &addr, &len);
866 log_err("fio: accept: %s\n", strerror(errno));
870 dprint(FD_NET, "server: connect from %s\n", inet_ntoa(addr.sin_addr));
875 fio_server_add_conn_pid(pid);
880 handle_connection(sk);
886 int fio_server_text_output(int level, const char *buf, size_t len)
888 struct cmd_text_pdu *pdu;
893 return log_local_buf(buf, len);
895 tlen = sizeof(*pdu) + len;
898 pdu->level = __cpu_to_le32(level);
899 pdu->buf_len = __cpu_to_le32(len);
901 gettimeofday(&tv, NULL);
902 pdu->log_sec = __cpu_to_le64(tv.tv_sec);
903 pdu->log_usec = __cpu_to_le64(tv.tv_usec);
905 memcpy(pdu->buf, buf, len);
907 fio_net_send_cmd(server_fd, FIO_NET_CMD_TEXT, pdu, tlen, NULL, NULL);
912 static void convert_io_stat(struct io_stat *dst, struct io_stat *src)
914 dst->max_val = cpu_to_le64(src->max_val);
915 dst->min_val = cpu_to_le64(src->min_val);
916 dst->samples = cpu_to_le64(src->samples);
919 * Encode to IEEE 754 for network transfer
921 dst->mean.u.i = __cpu_to_le64(fio_double_to_uint64(src->mean.u.f));
922 dst->S.u.i = __cpu_to_le64(fio_double_to_uint64(src->S.u.f));
925 static void convert_gs(struct group_run_stats *dst, struct group_run_stats *src)
929 for (i = 0; i < 2; i++) {
930 dst->max_run[i] = cpu_to_le64(src->max_run[i]);
931 dst->min_run[i] = cpu_to_le64(src->min_run[i]);
932 dst->max_bw[i] = cpu_to_le64(src->max_bw[i]);
933 dst->min_bw[i] = cpu_to_le64(src->min_bw[i]);
934 dst->io_kb[i] = cpu_to_le64(src->io_kb[i]);
935 dst->agg[i] = cpu_to_le64(src->agg[i]);
938 dst->kb_base = cpu_to_le32(src->kb_base);
939 dst->groupid = cpu_to_le32(src->groupid);
943 * Send a CMD_TS, which packs struct thread_stat and group_run_stats
944 * into a single payload.
946 void fio_server_send_ts(struct thread_stat *ts, struct group_run_stats *rs)
951 dprint(FD_NET, "server sending end stats\n");
953 memset(&p, 0, sizeof(p));
955 strcpy(p.ts.name, ts->name);
956 strcpy(p.ts.verror, ts->verror);
957 strcpy(p.ts.description, ts->description);
959 p.ts.error = cpu_to_le32(ts->error);
960 p.ts.thread_number = cpu_to_le32(ts->thread_number);
961 p.ts.groupid = cpu_to_le32(ts->groupid);
962 p.ts.pid = cpu_to_le32(ts->pid);
963 p.ts.members = cpu_to_le32(ts->members);
965 for (i = 0; i < 2; i++) {
966 convert_io_stat(&p.ts.clat_stat[i], &ts->clat_stat[i]);
967 convert_io_stat(&p.ts.slat_stat[i], &ts->slat_stat[i]);
968 convert_io_stat(&p.ts.lat_stat[i], &ts->lat_stat[i]);
969 convert_io_stat(&p.ts.bw_stat[i], &ts->bw_stat[i]);
972 p.ts.usr_time = cpu_to_le64(ts->usr_time);
973 p.ts.sys_time = cpu_to_le64(ts->sys_time);
974 p.ts.ctx = cpu_to_le64(ts->ctx);
975 p.ts.minf = cpu_to_le64(ts->minf);
976 p.ts.majf = cpu_to_le64(ts->majf);
977 p.ts.clat_percentiles = cpu_to_le64(ts->clat_percentiles);
979 for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) {
980 fio_fp64_t *src = &ts->percentile_list[i];
981 fio_fp64_t *dst = &p.ts.percentile_list[i];
983 dst->u.i = __cpu_to_le64(fio_double_to_uint64(src->u.f));
986 for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
987 p.ts.io_u_map[i] = cpu_to_le32(ts->io_u_map[i]);
988 p.ts.io_u_submit[i] = cpu_to_le32(ts->io_u_submit[i]);
989 p.ts.io_u_complete[i] = cpu_to_le32(ts->io_u_complete[i]);
992 for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) {
993 p.ts.io_u_lat_u[i] = cpu_to_le32(ts->io_u_lat_u[i]);
994 p.ts.io_u_lat_m[i] = cpu_to_le32(ts->io_u_lat_m[i]);
997 for (i = 0; i < 2; i++)
998 for (j = 0; j < FIO_IO_U_PLAT_NR; j++)
999 p.ts.io_u_plat[i][j] = cpu_to_le32(ts->io_u_plat[i][j]);
1001 for (i = 0; i < 3; i++) {
1002 p.ts.total_io_u[i] = cpu_to_le64(ts->total_io_u[i]);
1003 p.ts.short_io_u[i] = cpu_to_le64(ts->short_io_u[i]);
1006 p.ts.total_submit = cpu_to_le64(ts->total_submit);
1007 p.ts.total_complete = cpu_to_le64(ts->total_complete);
1009 for (i = 0; i < 2; i++) {
1010 p.ts.io_bytes[i] = cpu_to_le64(ts->io_bytes[i]);
1011 p.ts.runtime[i] = cpu_to_le64(ts->runtime[i]);
1014 p.ts.total_run_time = cpu_to_le64(ts->total_run_time);
1015 p.ts.continue_on_error = cpu_to_le16(ts->continue_on_error);
1016 p.ts.total_err_count = cpu_to_le64(ts->total_err_count);
1017 p.ts.first_error = cpu_to_le32(ts->first_error);
1018 p.ts.kb_base = cpu_to_le32(ts->kb_base);
1020 convert_gs(&p.rs, rs);
1022 fio_net_send_cmd(server_fd, FIO_NET_CMD_TS, &p, sizeof(p), NULL, NULL);
1025 void fio_server_send_gs(struct group_run_stats *rs)
1027 struct group_run_stats gs;
1029 dprint(FD_NET, "server sending group run stats\n");
1031 convert_gs(&gs, rs);
1032 fio_net_send_cmd(server_fd, FIO_NET_CMD_GS, &gs, sizeof(gs), NULL, NULL);
1035 static void convert_agg(struct disk_util_agg *dst, struct disk_util_agg *src)
1039 for (i = 0; i < 2; i++) {
1040 dst->ios[i] = cpu_to_le32(src->ios[i]);
1041 dst->merges[i] = cpu_to_le32(src->merges[i]);
1042 dst->sectors[i] = cpu_to_le64(src->sectors[i]);
1043 dst->ticks[i] = cpu_to_le32(src->ticks[i]);
1046 dst->io_ticks = cpu_to_le32(src->io_ticks);
1047 dst->time_in_queue = cpu_to_le32(src->time_in_queue);
1048 dst->slavecount = cpu_to_le32(src->slavecount);
1049 dst->max_util.u.i = __cpu_to_le64(fio_double_to_uint64(src->max_util.u.f));
1052 static void convert_dus(struct disk_util_stat *dst, struct disk_util_stat *src)
1056 strcpy((char *) dst->name, (char *) src->name);
1058 for (i = 0; i < 2; i++) {
1059 dst->ios[i] = cpu_to_le32(src->ios[i]);
1060 dst->merges[i] = cpu_to_le32(src->merges[i]);
1061 dst->sectors[i] = cpu_to_le64(src->sectors[i]);
1062 dst->ticks[i] = cpu_to_le32(src->ticks[i]);
1065 dst->io_ticks = cpu_to_le32(src->io_ticks);
1066 dst->time_in_queue = cpu_to_le32(src->time_in_queue);
1067 dst->msec = cpu_to_le64(src->msec);
1070 void fio_server_send_du(void)
1072 struct disk_util *du;
1073 struct flist_head *entry;
1074 struct cmd_du_pdu pdu;
1076 dprint(FD_NET, "server: sending disk_util %d\n", !flist_empty(&disk_list));
1078 memset(&pdu, 0, sizeof(pdu));
1080 flist_for_each(entry, &disk_list) {
1081 du = flist_entry(entry, struct disk_util, list);
1083 convert_dus(&pdu.dus, &du->dus);
1084 convert_agg(&pdu.agg, &du->agg);
1086 fio_net_send_cmd(server_fd, FIO_NET_CMD_DU, &pdu, sizeof(pdu), NULL, NULL);
1091 * Send a command with a separate PDU, not inlined in the command
1093 static int fio_send_cmd_ext_pdu(int sk, uint16_t opcode, const void *buf,
1094 off_t size, uint64_t tag, uint32_t flags)
1096 struct fio_net_cmd cmd;
1097 struct iovec iov[2];
1099 iov[0].iov_base = &cmd;
1100 iov[0].iov_len = sizeof(cmd);
1101 iov[1].iov_base = (void *) buf;
1102 iov[1].iov_len = size;
1104 __fio_init_net_cmd(&cmd, opcode, size, tag);
1105 cmd.flags = __cpu_to_le32(flags);
1106 fio_net_cmd_crc_pdu(&cmd, buf);
1108 return fio_sendv_data(sk, iov, 2);
1111 int fio_send_iolog(struct thread_data *td, struct io_log *log, const char *name)
1113 struct cmd_iolog_pdu pdu;
1118 pdu.thread_number = cpu_to_le32(td->thread_number);
1119 pdu.nr_samples = __cpu_to_le32(log->nr_samples);
1120 pdu.log_type = cpu_to_le32(log->log_type);
1121 strcpy((char *) pdu.name, name);
1123 for (i = 0; i < log->nr_samples; i++) {
1124 struct io_sample *s = &log->log[i];
1126 s->time = cpu_to_le64(s->time);
1127 s->val = cpu_to_le64(s->val);
1128 s->ddir = cpu_to_le32(s->ddir);
1129 s->bs = cpu_to_le32(s->bs);
1133 * Dirty - since the log is potentially huge, compress it into
1134 * FIO_SERVER_MAX_FRAGMENT_PDU chunks and let the receiving
1135 * side defragment it.
1137 out_pdu = malloc(FIO_SERVER_MAX_FRAGMENT_PDU);
1139 stream.zalloc = Z_NULL;
1140 stream.zfree = Z_NULL;
1141 stream.opaque = Z_NULL;
1143 if (deflateInit(&stream, Z_DEFAULT_COMPRESSION) != Z_OK) {
1149 * Send header first, it's not compressed.
1151 ret = fio_send_cmd_ext_pdu(server_fd, FIO_NET_CMD_IOLOG, &pdu,
1152 sizeof(pdu), 0, FIO_NET_CMD_F_MORE);
1156 stream.next_in = (void *) log->log;
1157 stream.avail_in = log->nr_samples * sizeof(struct io_sample);
1160 unsigned int this_len, flags = 0;
1163 stream.avail_out = FIO_SERVER_MAX_FRAGMENT_PDU;
1164 stream.next_out = out_pdu;
1165 ret = deflate(&stream, Z_FINISH);
1166 /* may be Z_OK, or Z_STREAM_END */
1170 this_len = FIO_SERVER_MAX_FRAGMENT_PDU - stream.avail_out;
1172 if (stream.avail_in)
1173 flags = FIO_NET_CMD_F_MORE;
1175 ret = fio_send_cmd_ext_pdu(server_fd, FIO_NET_CMD_IOLOG,
1176 out_pdu, this_len, 0, flags);
1179 } while (stream.avail_in);
1182 deflateEnd(&stream);
1188 void fio_server_send_add_job(struct thread_data *td)
1190 struct cmd_add_job_pdu pdu;
1192 memset(&pdu, 0, sizeof(pdu));
1193 pdu.thread_number = cpu_to_le32(td->thread_number);
1194 pdu.groupid = cpu_to_le32(td->groupid);
1195 convert_thread_options_to_net(&pdu.top, &td->o);
1197 fio_net_send_cmd(server_fd, FIO_NET_CMD_ADD_JOB, &pdu, sizeof(pdu), NULL, NULL);
1200 void fio_server_send_start(struct thread_data *td)
1202 assert(server_fd != -1);
1204 fio_net_send_simple_cmd(server_fd, FIO_NET_CMD_SERVER_START, 0, NULL);
1207 static int fio_init_server_ip(void)
1209 struct sockaddr *addr;
1210 fio_socklen_t socklen;
1214 sk = socket(AF_INET6, SOCK_STREAM, 0);
1216 sk = socket(AF_INET, SOCK_STREAM, 0);
1219 log_err("fio: socket: %s\n", strerror(errno));
1224 if (setsockopt(sk, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt)) < 0) {
1225 log_err("fio: setsockopt: %s\n", strerror(errno));
1230 if (setsockopt(sk, SOL_SOCKET, SO_REUSEPORT, &opt, sizeof(opt)) < 0) {
1231 log_err("fio: setsockopt: %s\n", strerror(errno));
1238 addr = (struct sockaddr *) &saddr_in6;
1239 socklen = sizeof(saddr_in6);
1240 saddr_in6.sin6_family = AF_INET6;
1242 addr = (struct sockaddr *) &saddr_in;
1243 socklen = sizeof(saddr_in);
1244 saddr_in.sin_family = AF_INET;
1247 if (bind(sk, addr, socklen) < 0) {
1248 log_err("fio: bind: %s\n", strerror(errno));
1256 static int fio_init_server_sock(void)
1258 struct sockaddr_un addr;
1263 sk = socket(AF_UNIX, SOCK_STREAM, 0);
1265 log_err("fio: socket: %s\n", strerror(errno));
1271 memset(&addr, 0, sizeof(addr));
1272 addr.sun_family = AF_UNIX;
1273 strcpy(addr.sun_path, bind_sock);
1276 len = sizeof(addr.sun_family) + strlen(bind_sock) + 1;
1278 if (bind(sk, (struct sockaddr *) &addr, len) < 0) {
1279 log_err("fio: bind: %s\n", strerror(errno));
1288 static int fio_init_server_connection(void)
1293 dprint(FD_NET, "starting server\n");
1296 sk = fio_init_server_ip();
1298 sk = fio_init_server_sock();
1310 src = &saddr_in6.sin6_addr;
1313 src = &saddr_in.sin_addr;
1316 p = (char *) inet_ntop(af, src, bind_str, sizeof(bind_str));
1318 sprintf(port, ",%u", fio_net_port);
1322 strcpy(bind_str, port);
1324 strcpy(bind_str, bind_sock);
1326 log_info("fio: server listening on %s\n", bind_str);
1328 if (listen(sk, 0) < 0) {
1329 log_err("fio: listen: %s\n", strerror(errno));
1336 int fio_server_parse_host(const char *host, int *ipv6, struct in_addr *inp,
1337 struct in6_addr *inp6)
1343 ret = inet_pton(AF_INET6, host, inp6);
1345 ret = inet_pton(AF_INET, host, inp);
1348 struct hostent *hent;
1350 hent = gethostbyname(host);
1352 log_err("fio: failed to resolve <%s>\n", host);
1357 if (hent->h_addrtype != AF_INET6) {
1358 log_info("fio: falling back to IPv4\n");
1361 memcpy(inp6, hent->h_addr_list[0], 16);
1364 if (hent->h_addrtype != AF_INET) {
1365 log_err("fio: lookup type mismatch\n");
1368 memcpy(inp, hent->h_addr_list[0], 4);
1377 * Parse a host/ip/port string. Reads from 'str'.
1382 * *ptr is the host, *port is the port, inp is the destination.
1384 * *ptr is the host, *port is the port, inp6 is the dest, and *ipv6 is 1.
1385 * For local domain sockets:
1386 * *ptr is the filename, *is_sock is 1.
1388 int fio_server_parse_string(const char *str, char **ptr, int *is_sock,
1389 int *port, struct in_addr *inp,
1390 struct in6_addr *inp6, int *ipv6)
1392 const char *host = str;
1398 *port = fio_net_port;
1401 if (!strncmp(str, "sock:", 5)) {
1402 *ptr = strdup(str + 5);
1409 * Is it ip:<ip or host>:port
1411 if (!strncmp(host, "ip:", 3))
1413 else if (!strncmp(host, "ip4:", 4))
1415 else if (!strncmp(host, "ip6:", 4)) {
1418 } else if (host[0] == ':') {
1419 /* String is :port */
1422 if (!lport || lport > 65535) {
1423 log_err("fio: bad server port %u\n", port);
1426 /* no hostname given, we are done */
1432 * If no port seen yet, check if there's a last ':' at the end
1435 portp = strchr(host, ',');
1439 lport = atoi(portp);
1440 if (!lport || lport > 65535) {
1441 log_err("fio: bad server port %u\n", port);
1453 *ptr = strdup(host);
1455 if (fio_server_parse_host(*ptr, ipv6, inp, inp6)) {
1462 *port = fio_net_port;
1468 * Server arg should be one of:
1470 * sock:/path/to/socket
1474 * Where sock uses unix domain sockets, and ip binds the server to
1475 * a specific interface. If no arguments are given to the server, it
1476 * uses IP and binds to 0.0.0.0.
1479 static int fio_handle_server_arg(void)
1481 int port = fio_net_port;
1482 int is_sock, ret = 0;
1484 saddr_in.sin_addr.s_addr = htonl(INADDR_ANY);
1486 if (!fio_server_arg)
1489 ret = fio_server_parse_string(fio_server_arg, &bind_sock, &is_sock,
1490 &port, &saddr_in.sin_addr,
1491 &saddr_in6.sin6_addr, &use_ipv6);
1493 if (!is_sock && bind_sock) {
1499 fio_net_port = port;
1500 saddr_in.sin_port = htons(port);
1501 saddr_in6.sin6_port = htons(port);
1505 static int fio_server(void)
1509 dprint(FD_NET, "starting server\n");
1511 if (fio_handle_server_arg())
1514 sk = fio_init_server_connection();
1518 ret = accept_loop(sk);
1522 if (fio_server_arg) {
1523 free(fio_server_arg);
1524 fio_server_arg = NULL;
1532 void fio_server_got_signal(int signal)
1534 if (signal == SIGPIPE)
1537 log_info("\nfio: terminating on signal %d\n", signal);
1542 static int check_existing_pidfile(const char *pidfile)
1549 if (stat(pidfile, &sb))
1552 f = fopen(pidfile, "r");
1556 if (fread(buf, sb.st_size, 1, f) <= 0) {
1563 if (kill(pid, SIGCONT) < 0)
1564 return errno != ESRCH;
1569 static int write_pid(pid_t pid, const char *pidfile)
1573 fpid = fopen(pidfile, "w");
1575 log_err("fio: failed opening pid file %s\n", pidfile);
1579 fprintf(fpid, "%u\n", (unsigned int) pid);
1585 * If pidfile is specified, background us.
1587 int fio_start_server(char *pidfile)
1594 WSAStartup(MAKEWORD(2, 2), &wsd);
1598 return fio_server();
1600 if (check_existing_pidfile(pidfile)) {
1601 log_err("fio: pidfile %s exists and server appears alive\n",
1608 log_err("fio: failed server fork: %s", strerror(errno));
1612 int ret = write_pid(pid, pidfile);
1618 openlog("fio", LOG_NDELAY|LOG_NOWAIT|LOG_PID, LOG_USER);
1620 close(STDIN_FILENO);
1621 close(STDOUT_FILENO);
1622 close(STDERR_FILENO);
1634 void fio_server_set_arg(const char *arg)
1636 fio_server_arg = strdup(arg);