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 int fio_net_port = FIO_NET_PORT;
30 static int server_fd = -1;
31 static char *fio_server_arg;
32 static char *bind_sock;
33 static struct sockaddr_in saddr_in;
34 static struct sockaddr_in6 saddr_in6;
37 struct fio_fork_item {
38 struct flist_head list;
45 /* Created on fork on new connection */
46 static FLIST_HEAD(conn_list);
48 /* Created on job fork from connection */
49 static FLIST_HEAD(job_list);
51 static const char *fio_server_ops[FIO_NET_CMD_NR] = {
72 const char *fio_server_op(unsigned int op)
76 if (op < FIO_NET_CMD_NR)
77 return fio_server_ops[op];
79 sprintf(buf, "UNKNOWN/%d", op);
83 static ssize_t iov_total_len(const struct iovec *iov, int count)
95 static int fio_sendv_data(int sk, struct iovec *iov, int count)
97 ssize_t total_len = iov_total_len(iov, count);
101 ret = writev(sk, iov, count);
108 if (ret >= iov->iov_len) {
113 iov->iov_base += ret;
119 else if (errno == EAGAIN || errno == EINTR)
123 } while (!exit_backend);
134 int fio_send_data(int sk, const void *p, unsigned int len)
136 struct iovec iov = { .iov_base = (void *) p, .iov_len = len };
138 assert(len <= sizeof(struct fio_net_cmd) + FIO_SERVER_MAX_FRAGMENT_PDU);
140 return fio_sendv_data(sk, &iov, 1);
143 int fio_recv_data(int sk, void *p, unsigned int len)
146 int ret = recv(sk, p, len, MSG_WAITALL);
156 else if (errno == EAGAIN || errno == EINTR)
160 } while (!exit_backend);
168 static int verify_convert_cmd(struct fio_net_cmd *cmd)
172 cmd->cmd_crc16 = le16_to_cpu(cmd->cmd_crc16);
173 cmd->pdu_crc16 = le16_to_cpu(cmd->pdu_crc16);
175 crc = fio_crc16(cmd, FIO_NET_CMD_CRC_SZ);
176 if (crc != cmd->cmd_crc16) {
177 log_err("fio: server bad crc on command (got %x, wanted %x)\n",
178 cmd->cmd_crc16, crc);
182 cmd->version = le16_to_cpu(cmd->version);
183 cmd->opcode = le16_to_cpu(cmd->opcode);
184 cmd->flags = le32_to_cpu(cmd->flags);
185 cmd->tag = le64_to_cpu(cmd->tag);
186 cmd->pdu_len = le32_to_cpu(cmd->pdu_len);
188 switch (cmd->version) {
192 log_err("fio: bad server cmd version %d\n", cmd->version);
196 if (cmd->pdu_len > FIO_SERVER_MAX_FRAGMENT_PDU) {
197 log_err("fio: command payload too large: %u\n", cmd->pdu_len);
205 * Read (and defragment, if necessary) incoming commands
207 struct fio_net_cmd *fio_net_recv_cmd(int sk)
209 struct fio_net_cmd cmd, *cmdret = NULL;
210 size_t cmd_size = 0, pdu_offset = 0;
216 ret = fio_recv_data(sk, &cmd, sizeof(cmd));
220 /* We have a command, verify it and swap if need be */
221 ret = verify_convert_cmd(&cmd);
226 /* if this is text, add room for \0 at the end */
227 cmd_size = sizeof(cmd) + cmd.pdu_len + 1;
230 cmd_size += cmd.pdu_len;
232 cmdret = realloc(cmdret, cmd_size);
235 memcpy(cmdret, &cmd, sizeof(cmd));
236 else if (cmdret->opcode != cmd.opcode) {
237 log_err("fio: fragment opcode mismatch (%d != %d)\n",
238 cmdret->opcode, cmd.opcode);
246 /* There's payload, get it */
247 pdu = (void *) cmdret->payload + pdu_offset;
248 ret = fio_recv_data(sk, pdu, cmd.pdu_len);
252 /* Verify payload crc */
253 crc = fio_crc16(pdu, cmd.pdu_len);
254 if (crc != cmd.pdu_crc16) {
255 log_err("fio: server bad crc on payload ");
256 log_err("(got %x, wanted %x)\n", cmd.pdu_crc16, crc);
261 pdu_offset += cmd.pdu_len;
263 cmdret->pdu_len += cmd.pdu_len;
265 } while (cmd.flags & FIO_NET_CMD_F_MORE);
271 /* zero-terminate text input */
272 if (cmdret->pdu_len) {
273 if (cmdret->opcode == FIO_NET_CMD_TEXT) {
274 struct cmd_text_pdu *pdu = (struct cmd_text_pdu *) cmdret->payload;
275 char *buf = (char *) pdu->buf;
277 buf[pdu->buf_len] = '\0';
278 } else if (cmdret->opcode == FIO_NET_CMD_JOB) {
279 struct cmd_job_pdu *pdu = (struct cmd_job_pdu *) cmdret->payload;
280 char *buf = (char *) pdu->buf;
281 int len = le32_to_cpu(pdu->buf_len);
287 /* frag flag is internal */
288 cmdret->flags &= ~FIO_NET_CMD_F_MORE;
294 static void add_reply(uint64_t tag, struct flist_head *list)
296 struct fio_net_cmd_reply *reply = (struct fio_net_cmd_reply *) tag;
298 flist_add_tail(&reply->list, list);
301 static uint64_t alloc_reply(uint64_t tag, uint16_t opcode)
303 struct fio_net_cmd_reply *reply;
305 reply = calloc(1, sizeof(*reply));
306 INIT_FLIST_HEAD(&reply->list);
307 gettimeofday(&reply->tv, NULL);
308 reply->saved_tag = tag;
309 reply->opcode = opcode;
311 return (uintptr_t) reply;
314 static void free_reply(uint64_t tag)
316 struct fio_net_cmd_reply *reply = (struct fio_net_cmd_reply *) tag;
321 void fio_net_cmd_crc_pdu(struct fio_net_cmd *cmd, const void *pdu)
325 cmd->cmd_crc16 = __cpu_to_le16(fio_crc16(cmd, FIO_NET_CMD_CRC_SZ));
327 pdu_len = le32_to_cpu(cmd->pdu_len);
328 cmd->pdu_crc16 = __cpu_to_le16(fio_crc16(pdu, pdu_len));
331 void fio_net_cmd_crc(struct fio_net_cmd *cmd)
333 fio_net_cmd_crc_pdu(cmd, cmd->payload);
336 int fio_net_send_cmd(int fd, uint16_t opcode, const void *buf, off_t size,
337 uint64_t *tagptr, struct flist_head *list)
339 struct fio_net_cmd *cmd = NULL;
340 size_t this_len, cur_len = 0;
346 tag = *tagptr = alloc_reply(*tagptr, opcode);
348 tag = tagptr ? *tagptr : 0;
352 if (this_len > FIO_SERVER_MAX_FRAGMENT_PDU)
353 this_len = FIO_SERVER_MAX_FRAGMENT_PDU;
355 if (!cmd || cur_len < sizeof(*cmd) + this_len) {
359 cur_len = sizeof(*cmd) + this_len;
360 cmd = malloc(cur_len);
363 fio_init_net_cmd(cmd, opcode, buf, this_len, tag);
366 cmd->flags = __cpu_to_le32(FIO_NET_CMD_F_MORE);
368 fio_net_cmd_crc(cmd);
370 ret = fio_send_data(fd, cmd, sizeof(*cmd) + this_len);
373 } while (!ret && size);
379 add_reply(tag, list);
388 static int fio_net_send_simple_stack_cmd(int sk, uint16_t opcode, uint64_t tag)
390 struct fio_net_cmd cmd;
392 fio_init_net_cmd(&cmd, opcode, NULL, 0, tag);
393 fio_net_cmd_crc(&cmd);
395 return fio_send_data(sk, &cmd, sizeof(cmd));
399 * If 'list' is non-NULL, then allocate and store the sent command for
400 * later verification.
402 int fio_net_send_simple_cmd(int sk, uint16_t opcode, uint64_t tag,
403 struct flist_head *list)
408 tag = alloc_reply(tag, opcode);
410 ret = fio_net_send_simple_stack_cmd(sk, opcode, tag);
419 add_reply(tag, list);
424 int fio_net_send_quit(int sk)
426 dprint(FD_NET, "server: sending quit\n");
428 return fio_net_send_simple_cmd(sk, FIO_NET_CMD_QUIT, 0, NULL);
431 static int fio_net_send_ack(int sk, struct fio_net_cmd *cmd, int error,
434 struct cmd_end_pdu epdu;
440 epdu.error = __cpu_to_le32(error);
441 epdu.signal = __cpu_to_le32(signal);
442 return fio_net_send_cmd(sk, FIO_NET_CMD_STOP, &epdu, sizeof(epdu), &tag, NULL);
445 int fio_net_send_stop(int sk, int error, int signal)
447 dprint(FD_NET, "server: sending stop (%d, %d)\n", error, signal);
448 return fio_net_send_ack(sk, NULL, error, signal);
451 static void fio_server_add_fork_item(pid_t pid, struct flist_head *list)
453 struct fio_fork_item *ffi;
455 ffi = malloc(sizeof(*ffi));
460 flist_add_tail(&ffi->list, list);
463 static void fio_server_add_conn_pid(pid_t pid)
465 dprint(FD_NET, "server: forked off connection job (pid=%u)\n", pid);
466 fio_server_add_fork_item(pid, &conn_list);
469 static void fio_server_add_job_pid(pid_t pid)
471 dprint(FD_NET, "server: forked off job job (pid=%u)\n", pid);
472 fio_server_add_fork_item(pid, &job_list);
475 static void fio_server_check_fork_item(struct fio_fork_item *ffi)
479 ret = waitpid(ffi->pid, &status, WNOHANG);
481 if (errno == ECHILD) {
482 log_err("fio: connection pid %u disappeared\n", ffi->pid);
485 log_err("fio: waitpid: %s\n", strerror(errno));
486 } else if (ret == ffi->pid) {
487 if (WIFSIGNALED(status)) {
488 ffi->signal = WTERMSIG(status);
491 if (WIFEXITED(status)) {
492 if (WEXITSTATUS(status))
493 ffi->exitval = WEXITSTATUS(status);
499 static void fio_server_fork_item_done(struct fio_fork_item *ffi)
501 dprint(FD_NET, "pid %u exited, sig=%u, exitval=%d\n", ffi->pid, ffi->signal, ffi->exitval);
504 * Fold STOP and QUIT...
506 fio_net_send_stop(server_fd, ffi->exitval, ffi->signal);
507 fio_net_send_quit(server_fd);
508 flist_del(&ffi->list);
512 static void fio_server_check_fork_items(struct flist_head *list)
514 struct flist_head *entry, *tmp;
515 struct fio_fork_item *ffi;
517 flist_for_each_safe(entry, tmp, list) {
518 ffi = flist_entry(entry, struct fio_fork_item, list);
520 fio_server_check_fork_item(ffi);
523 fio_server_fork_item_done(ffi);
527 static void fio_server_check_jobs(void)
529 fio_server_check_fork_items(&job_list);
532 static void fio_server_check_conns(void)
534 fio_server_check_fork_items(&conn_list);
537 static int handle_run_cmd(struct fio_net_cmd *cmd)
546 fio_server_add_job_pid(pid);
555 static int handle_job_cmd(struct fio_net_cmd *cmd)
557 struct cmd_job_pdu *pdu = (struct cmd_job_pdu *) cmd->payload;
558 void *buf = pdu->buf;
559 struct cmd_start_pdu spdu;
561 pdu->buf_len = le32_to_cpu(pdu->buf_len);
562 pdu->client_type = le32_to_cpu(pdu->client_type);
564 if (parse_jobs_ini(buf, 1, 0, pdu->client_type)) {
565 fio_net_send_quit(server_fd);
569 spdu.jobs = cpu_to_le32(thread_number);
570 fio_net_send_cmd(server_fd, FIO_NET_CMD_START, &spdu, sizeof(spdu), NULL, NULL);
574 static int handle_jobline_cmd(struct fio_net_cmd *cmd)
576 void *pdu = cmd->payload;
577 struct cmd_single_line_pdu *cslp;
578 struct cmd_line_pdu *clp;
579 unsigned long offset;
580 struct cmd_start_pdu spdu;
585 clp->lines = le16_to_cpu(clp->lines);
586 clp->client_type = le16_to_cpu(clp->client_type);
587 argv = malloc(clp->lines * sizeof(char *));
588 offset = sizeof(*clp);
590 dprint(FD_NET, "server: %d command line args\n", clp->lines);
592 for (i = 0; i < clp->lines; i++) {
594 argv[i] = (char *) cslp->text;
596 offset += sizeof(*cslp) + le16_to_cpu(cslp->len);
597 dprint(FD_NET, "server: %d: %s\n", i, argv[i]);
600 if (parse_cmd_line(clp->lines, argv, clp->client_type)) {
601 fio_net_send_quit(server_fd);
608 spdu.jobs = cpu_to_le32(thread_number);
609 fio_net_send_cmd(server_fd, FIO_NET_CMD_START, &spdu, sizeof(spdu), NULL, NULL);
613 static int handle_probe_cmd(struct fio_net_cmd *cmd)
615 struct cmd_probe_pdu probe;
616 uint64_t tag = cmd->tag;
618 dprint(FD_NET, "server: sending probe reply\n");
620 memset(&probe, 0, sizeof(probe));
621 gethostname((char *) probe.hostname, sizeof(probe.hostname));
622 #ifdef FIO_BIG_ENDIAN
625 strncpy((char *) probe.fio_version, fio_version_string, sizeof(probe.fio_version));
628 probe.arch = FIO_ARCH;
629 probe.bpp = sizeof(void *);
630 probe.cpus = __cpu_to_le32(cpus_online());
633 return fio_net_send_cmd(server_fd, FIO_NET_CMD_PROBE, &probe, sizeof(probe), &tag, NULL);
636 static int handle_send_eta_cmd(struct fio_net_cmd *cmd)
640 uint64_t tag = cmd->tag;
646 size = sizeof(*je) + thread_number * sizeof(char) + 1;
650 if (!calc_thread_status(je, 1)) {
655 dprint(FD_NET, "server sending status\n");
657 je->nr_running = cpu_to_le32(je->nr_running);
658 je->nr_ramp = cpu_to_le32(je->nr_ramp);
659 je->nr_pending = cpu_to_le32(je->nr_pending);
660 je->files_open = cpu_to_le32(je->files_open);
662 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
663 je->m_rate[i] = cpu_to_le32(je->m_rate[i]);
664 je->t_rate[i] = cpu_to_le32(je->t_rate[i]);
665 je->m_iops[i] = cpu_to_le32(je->m_iops[i]);
666 je->t_iops[i] = cpu_to_le32(je->t_iops[i]);
667 je->rate[i] = cpu_to_le32(je->rate[i]);
668 je->iops[i] = cpu_to_le32(je->iops[i]);
671 je->elapsed_sec = cpu_to_le64(je->elapsed_sec);
672 je->eta_sec = cpu_to_le64(je->eta_sec);
673 je->nr_threads = cpu_to_le32(je->nr_threads);
674 je->is_pow2 = cpu_to_le32(je->is_pow2);
676 fio_net_send_cmd(server_fd, FIO_NET_CMD_ETA, je, size, &tag, NULL);
681 static int send_update_job_reply(int fd, uint64_t __tag, int error)
683 uint64_t tag = __tag;
686 pdu_error = __cpu_to_le32(error);
687 return fio_net_send_cmd(fd, FIO_NET_CMD_UPDATE_JOB, &pdu_error, sizeof(pdu_error), &tag, NULL);
690 static int handle_update_job_cmd(struct fio_net_cmd *cmd)
692 struct cmd_add_job_pdu *pdu = (struct cmd_add_job_pdu *) cmd->payload;
693 struct thread_data *td;
696 tnumber = le32_to_cpu(pdu->thread_number);
698 dprint(FD_NET, "server: updating options for job %u\n", tnumber);
700 if (!tnumber || tnumber > thread_number) {
701 send_update_job_reply(server_fd, cmd->tag, ENODEV);
705 td = &threads[tnumber - 1];
706 convert_thread_options_to_cpu(&td->o, &pdu->top);
707 send_update_job_reply(server_fd, cmd->tag, 0);
711 static int handle_command(struct fio_net_cmd *cmd)
715 dprint(FD_NET, "server: got op [%s], pdu=%u, tag=%lx\n",
716 fio_server_op(cmd->opcode), cmd->pdu_len, cmd->tag);
718 switch (cmd->opcode) {
719 case FIO_NET_CMD_QUIT:
720 fio_terminate_threads(TERMINATE_ALL);
722 case FIO_NET_CMD_EXIT:
725 case FIO_NET_CMD_JOB:
726 ret = handle_job_cmd(cmd);
728 case FIO_NET_CMD_JOBLINE:
729 ret = handle_jobline_cmd(cmd);
731 case FIO_NET_CMD_PROBE:
732 ret = handle_probe_cmd(cmd);
734 case FIO_NET_CMD_SEND_ETA:
735 ret = handle_send_eta_cmd(cmd);
737 case FIO_NET_CMD_RUN:
738 ret = handle_run_cmd(cmd);
740 case FIO_NET_CMD_UPDATE_JOB:
741 ret = handle_update_job_cmd(cmd);
744 log_err("fio: unknown opcode: %s\n", fio_server_op(cmd->opcode));
751 static int handle_connection(int sk)
753 struct fio_net_cmd *cmd = NULL;
757 INIT_FLIST_HEAD(&job_list);
761 while (!exit_backend) {
762 struct pollfd pfd = {
771 if (!flist_empty(&job_list))
774 ret = poll(&pfd, 1, timeout);
778 log_err("fio: poll: %s\n", strerror(errno));
781 fio_server_check_jobs();
785 if (pfd.revents & POLLIN)
787 if (pfd.revents & (POLLERR|POLLHUP)) {
791 } while (!exit_backend);
793 fio_server_check_jobs();
798 cmd = fio_net_recv_cmd(sk);
804 ret = handle_command(cmd);
819 static int accept_loop(int listen_sk)
821 struct sockaddr_in addr;
822 fio_socklen_t len = sizeof(addr);
824 int ret = 0, sk, flags, exitval = 0;
826 dprint(FD_NET, "server enter accept loop\n");
828 flags = fcntl(listen_sk, F_GETFL);
830 fcntl(listen_sk, F_SETFL, flags);
832 while (!exit_backend) {
840 if (!flist_empty(&conn_list))
843 ret = poll(&pfd, 1, timeout);
847 log_err("fio: poll: %s\n", strerror(errno));
850 fio_server_check_conns();
854 if (pfd.revents & POLLIN)
856 } while (!exit_backend);
858 fio_server_check_conns();
860 if (exit_backend || ret < 0)
863 sk = accept(listen_sk, (struct sockaddr *) &addr, &len);
865 log_err("fio: accept: %s\n", strerror(errno));
869 dprint(FD_NET, "server: connect from %s\n", inet_ntoa(addr.sin_addr));
874 fio_server_add_conn_pid(pid);
879 handle_connection(sk);
885 int fio_server_text_output(int level, const char *buf, size_t len)
887 struct cmd_text_pdu *pdu;
892 return log_local_buf(buf, len);
894 tlen = sizeof(*pdu) + len;
897 pdu->level = __cpu_to_le32(level);
898 pdu->buf_len = __cpu_to_le32(len);
900 gettimeofday(&tv, NULL);
901 pdu->log_sec = __cpu_to_le64(tv.tv_sec);
902 pdu->log_usec = __cpu_to_le64(tv.tv_usec);
904 memcpy(pdu->buf, buf, len);
906 fio_net_send_cmd(server_fd, FIO_NET_CMD_TEXT, pdu, tlen, NULL, NULL);
911 static void convert_io_stat(struct io_stat *dst, struct io_stat *src)
913 dst->max_val = cpu_to_le64(src->max_val);
914 dst->min_val = cpu_to_le64(src->min_val);
915 dst->samples = cpu_to_le64(src->samples);
918 * Encode to IEEE 754 for network transfer
920 dst->mean.u.i = __cpu_to_le64(fio_double_to_uint64(src->mean.u.f));
921 dst->S.u.i = __cpu_to_le64(fio_double_to_uint64(src->S.u.f));
924 static void convert_gs(struct group_run_stats *dst, struct group_run_stats *src)
928 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
929 dst->max_run[i] = cpu_to_le64(src->max_run[i]);
930 dst->min_run[i] = cpu_to_le64(src->min_run[i]);
931 dst->max_bw[i] = cpu_to_le64(src->max_bw[i]);
932 dst->min_bw[i] = cpu_to_le64(src->min_bw[i]);
933 dst->io_kb[i] = cpu_to_le64(src->io_kb[i]);
934 dst->agg[i] = cpu_to_le64(src->agg[i]);
937 dst->kb_base = cpu_to_le32(src->kb_base);
938 dst->groupid = cpu_to_le32(src->groupid);
942 * Send a CMD_TS, which packs struct thread_stat and group_run_stats
943 * into a single payload.
945 void fio_server_send_ts(struct thread_stat *ts, struct group_run_stats *rs)
950 dprint(FD_NET, "server sending end stats\n");
952 memset(&p, 0, sizeof(p));
954 strcpy(p.ts.name, ts->name);
955 strcpy(p.ts.verror, ts->verror);
956 strcpy(p.ts.description, ts->description);
958 p.ts.error = cpu_to_le32(ts->error);
959 p.ts.thread_number = cpu_to_le32(ts->thread_number);
960 p.ts.groupid = cpu_to_le32(ts->groupid);
961 p.ts.pid = cpu_to_le32(ts->pid);
962 p.ts.members = cpu_to_le32(ts->members);
964 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
965 convert_io_stat(&p.ts.clat_stat[i], &ts->clat_stat[i]);
966 convert_io_stat(&p.ts.slat_stat[i], &ts->slat_stat[i]);
967 convert_io_stat(&p.ts.lat_stat[i], &ts->lat_stat[i]);
968 convert_io_stat(&p.ts.bw_stat[i], &ts->bw_stat[i]);
971 p.ts.usr_time = cpu_to_le64(ts->usr_time);
972 p.ts.sys_time = cpu_to_le64(ts->sys_time);
973 p.ts.ctx = cpu_to_le64(ts->ctx);
974 p.ts.minf = cpu_to_le64(ts->minf);
975 p.ts.majf = cpu_to_le64(ts->majf);
976 p.ts.clat_percentiles = cpu_to_le64(ts->clat_percentiles);
978 for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) {
979 fio_fp64_t *src = &ts->percentile_list[i];
980 fio_fp64_t *dst = &p.ts.percentile_list[i];
982 dst->u.i = __cpu_to_le64(fio_double_to_uint64(src->u.f));
985 for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
986 p.ts.io_u_map[i] = cpu_to_le32(ts->io_u_map[i]);
987 p.ts.io_u_submit[i] = cpu_to_le32(ts->io_u_submit[i]);
988 p.ts.io_u_complete[i] = cpu_to_le32(ts->io_u_complete[i]);
991 for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) {
992 p.ts.io_u_lat_u[i] = cpu_to_le32(ts->io_u_lat_u[i]);
993 p.ts.io_u_lat_m[i] = cpu_to_le32(ts->io_u_lat_m[i]);
996 for (i = 0; i < DDIR_RWDIR_CNT; i++)
997 for (j = 0; j < FIO_IO_U_PLAT_NR; j++)
998 p.ts.io_u_plat[i][j] = cpu_to_le32(ts->io_u_plat[i][j]);
1000 for (i = 0; i < 3; i++) {
1001 p.ts.total_io_u[i] = cpu_to_le64(ts->total_io_u[i]);
1002 p.ts.short_io_u[i] = cpu_to_le64(ts->short_io_u[i]);
1005 p.ts.total_submit = cpu_to_le64(ts->total_submit);
1006 p.ts.total_complete = cpu_to_le64(ts->total_complete);
1008 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1009 p.ts.io_bytes[i] = cpu_to_le64(ts->io_bytes[i]);
1010 p.ts.runtime[i] = cpu_to_le64(ts->runtime[i]);
1013 p.ts.total_run_time = cpu_to_le64(ts->total_run_time);
1014 p.ts.continue_on_error = cpu_to_le16(ts->continue_on_error);
1015 p.ts.total_err_count = cpu_to_le64(ts->total_err_count);
1016 p.ts.first_error = cpu_to_le32(ts->first_error);
1017 p.ts.kb_base = cpu_to_le32(ts->kb_base);
1019 convert_gs(&p.rs, rs);
1021 fio_net_send_cmd(server_fd, FIO_NET_CMD_TS, &p, sizeof(p), NULL, NULL);
1024 void fio_server_send_gs(struct group_run_stats *rs)
1026 struct group_run_stats gs;
1028 dprint(FD_NET, "server sending group run stats\n");
1030 convert_gs(&gs, rs);
1031 fio_net_send_cmd(server_fd, FIO_NET_CMD_GS, &gs, sizeof(gs), NULL, NULL);
1034 static void convert_agg(struct disk_util_agg *dst, struct disk_util_agg *src)
1038 for (i = 0; i < 2; i++) {
1039 dst->ios[i] = cpu_to_le32(src->ios[i]);
1040 dst->merges[i] = cpu_to_le32(src->merges[i]);
1041 dst->sectors[i] = cpu_to_le64(src->sectors[i]);
1042 dst->ticks[i] = cpu_to_le32(src->ticks[i]);
1045 dst->io_ticks = cpu_to_le32(src->io_ticks);
1046 dst->time_in_queue = cpu_to_le32(src->time_in_queue);
1047 dst->slavecount = cpu_to_le32(src->slavecount);
1048 dst->max_util.u.i = __cpu_to_le64(fio_double_to_uint64(src->max_util.u.f));
1051 static void convert_dus(struct disk_util_stat *dst, struct disk_util_stat *src)
1055 strcpy((char *) dst->name, (char *) src->name);
1057 for (i = 0; i < 2; i++) {
1058 dst->ios[i] = cpu_to_le32(src->ios[i]);
1059 dst->merges[i] = cpu_to_le32(src->merges[i]);
1060 dst->sectors[i] = cpu_to_le64(src->sectors[i]);
1061 dst->ticks[i] = cpu_to_le32(src->ticks[i]);
1064 dst->io_ticks = cpu_to_le32(src->io_ticks);
1065 dst->time_in_queue = cpu_to_le32(src->time_in_queue);
1066 dst->msec = cpu_to_le64(src->msec);
1069 void fio_server_send_du(void)
1071 struct disk_util *du;
1072 struct flist_head *entry;
1073 struct cmd_du_pdu pdu;
1075 dprint(FD_NET, "server: sending disk_util %d\n", !flist_empty(&disk_list));
1077 memset(&pdu, 0, sizeof(pdu));
1079 flist_for_each(entry, &disk_list) {
1080 du = flist_entry(entry, struct disk_util, list);
1082 convert_dus(&pdu.dus, &du->dus);
1083 convert_agg(&pdu.agg, &du->agg);
1085 fio_net_send_cmd(server_fd, FIO_NET_CMD_DU, &pdu, sizeof(pdu), NULL, NULL);
1090 * Send a command with a separate PDU, not inlined in the command
1092 static int fio_send_cmd_ext_pdu(int sk, uint16_t opcode, const void *buf,
1093 off_t size, uint64_t tag, uint32_t flags)
1095 struct fio_net_cmd cmd;
1096 struct iovec iov[2];
1098 iov[0].iov_base = &cmd;
1099 iov[0].iov_len = sizeof(cmd);
1100 iov[1].iov_base = (void *) buf;
1101 iov[1].iov_len = size;
1103 __fio_init_net_cmd(&cmd, opcode, size, tag);
1104 cmd.flags = __cpu_to_le32(flags);
1105 fio_net_cmd_crc_pdu(&cmd, buf);
1107 return fio_sendv_data(sk, iov, 2);
1110 int fio_send_iolog(struct thread_data *td, struct io_log *log, const char *name)
1112 struct cmd_iolog_pdu pdu;
1117 pdu.thread_number = cpu_to_le32(td->thread_number);
1118 pdu.nr_samples = __cpu_to_le32(log->nr_samples);
1119 pdu.log_type = cpu_to_le32(log->log_type);
1120 strcpy((char *) pdu.name, name);
1122 for (i = 0; i < log->nr_samples; i++) {
1123 struct io_sample *s = &log->log[i];
1125 s->time = cpu_to_le64(s->time);
1126 s->val = cpu_to_le64(s->val);
1127 s->ddir = cpu_to_le32(s->ddir);
1128 s->bs = cpu_to_le32(s->bs);
1132 * Dirty - since the log is potentially huge, compress it into
1133 * FIO_SERVER_MAX_FRAGMENT_PDU chunks and let the receiving
1134 * side defragment it.
1136 out_pdu = malloc(FIO_SERVER_MAX_FRAGMENT_PDU);
1138 stream.zalloc = Z_NULL;
1139 stream.zfree = Z_NULL;
1140 stream.opaque = Z_NULL;
1142 if (deflateInit(&stream, Z_DEFAULT_COMPRESSION) != Z_OK) {
1148 * Send header first, it's not compressed.
1150 ret = fio_send_cmd_ext_pdu(server_fd, FIO_NET_CMD_IOLOG, &pdu,
1151 sizeof(pdu), 0, FIO_NET_CMD_F_MORE);
1155 stream.next_in = (void *) log->log;
1156 stream.avail_in = log->nr_samples * sizeof(struct io_sample);
1159 unsigned int this_len, flags = 0;
1162 stream.avail_out = FIO_SERVER_MAX_FRAGMENT_PDU;
1163 stream.next_out = out_pdu;
1164 ret = deflate(&stream, Z_FINISH);
1165 /* may be Z_OK, or Z_STREAM_END */
1169 this_len = FIO_SERVER_MAX_FRAGMENT_PDU - stream.avail_out;
1171 if (stream.avail_in)
1172 flags = FIO_NET_CMD_F_MORE;
1174 ret = fio_send_cmd_ext_pdu(server_fd, FIO_NET_CMD_IOLOG,
1175 out_pdu, this_len, 0, flags);
1178 } while (stream.avail_in);
1181 deflateEnd(&stream);
1187 void fio_server_send_add_job(struct thread_data *td)
1189 struct cmd_add_job_pdu pdu;
1191 memset(&pdu, 0, sizeof(pdu));
1192 pdu.thread_number = cpu_to_le32(td->thread_number);
1193 pdu.groupid = cpu_to_le32(td->groupid);
1194 convert_thread_options_to_net(&pdu.top, &td->o);
1196 fio_net_send_cmd(server_fd, FIO_NET_CMD_ADD_JOB, &pdu, sizeof(pdu), NULL, NULL);
1199 void fio_server_send_start(struct thread_data *td)
1201 assert(server_fd != -1);
1203 fio_net_send_simple_cmd(server_fd, FIO_NET_CMD_SERVER_START, 0, NULL);
1206 static int fio_init_server_ip(void)
1208 struct sockaddr *addr;
1209 fio_socklen_t socklen;
1213 sk = socket(AF_INET6, SOCK_STREAM, 0);
1215 sk = socket(AF_INET, SOCK_STREAM, 0);
1218 log_err("fio: socket: %s\n", strerror(errno));
1223 if (setsockopt(sk, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt)) < 0) {
1224 log_err("fio: setsockopt: %s\n", strerror(errno));
1229 if (setsockopt(sk, SOL_SOCKET, SO_REUSEPORT, &opt, sizeof(opt)) < 0) {
1230 log_err("fio: setsockopt: %s\n", strerror(errno));
1237 addr = (struct sockaddr *) &saddr_in6;
1238 socklen = sizeof(saddr_in6);
1239 saddr_in6.sin6_family = AF_INET6;
1241 addr = (struct sockaddr *) &saddr_in;
1242 socklen = sizeof(saddr_in);
1243 saddr_in.sin_family = AF_INET;
1246 if (bind(sk, addr, socklen) < 0) {
1247 log_err("fio: bind: %s\n", strerror(errno));
1255 static int fio_init_server_sock(void)
1257 struct sockaddr_un addr;
1262 sk = socket(AF_UNIX, SOCK_STREAM, 0);
1264 log_err("fio: socket: %s\n", strerror(errno));
1270 memset(&addr, 0, sizeof(addr));
1271 addr.sun_family = AF_UNIX;
1272 strcpy(addr.sun_path, bind_sock);
1275 len = sizeof(addr.sun_family) + strlen(bind_sock) + 1;
1277 if (bind(sk, (struct sockaddr *) &addr, len) < 0) {
1278 log_err("fio: bind: %s\n", strerror(errno));
1287 static int fio_init_server_connection(void)
1292 dprint(FD_NET, "starting server\n");
1295 sk = fio_init_server_ip();
1297 sk = fio_init_server_sock();
1309 src = &saddr_in6.sin6_addr;
1312 src = &saddr_in.sin_addr;
1315 p = (char *) inet_ntop(af, src, bind_str, sizeof(bind_str));
1317 sprintf(port, ",%u", fio_net_port);
1321 strcpy(bind_str, port);
1323 strcpy(bind_str, bind_sock);
1325 log_info("fio: server listening on %s\n", bind_str);
1327 if (listen(sk, 0) < 0) {
1328 log_err("fio: listen: %s\n", strerror(errno));
1335 int fio_server_parse_host(const char *host, int *ipv6, struct in_addr *inp,
1336 struct in6_addr *inp6)
1342 ret = inet_pton(AF_INET6, host, inp6);
1344 ret = inet_pton(AF_INET, host, inp);
1347 struct hostent *hent;
1349 hent = gethostbyname(host);
1351 log_err("fio: failed to resolve <%s>\n", host);
1356 if (hent->h_addrtype != AF_INET6) {
1357 log_info("fio: falling back to IPv4\n");
1360 memcpy(inp6, hent->h_addr_list[0], 16);
1363 if (hent->h_addrtype != AF_INET) {
1364 log_err("fio: lookup type mismatch\n");
1367 memcpy(inp, hent->h_addr_list[0], 4);
1376 * Parse a host/ip/port string. Reads from 'str'.
1381 * *ptr is the host, *port is the port, inp is the destination.
1383 * *ptr is the host, *port is the port, inp6 is the dest, and *ipv6 is 1.
1384 * For local domain sockets:
1385 * *ptr is the filename, *is_sock is 1.
1387 int fio_server_parse_string(const char *str, char **ptr, int *is_sock,
1388 int *port, struct in_addr *inp,
1389 struct in6_addr *inp6, int *ipv6)
1391 const char *host = str;
1397 *port = fio_net_port;
1400 if (!strncmp(str, "sock:", 5)) {
1401 *ptr = strdup(str + 5);
1408 * Is it ip:<ip or host>:port
1410 if (!strncmp(host, "ip:", 3))
1412 else if (!strncmp(host, "ip4:", 4))
1414 else if (!strncmp(host, "ip6:", 4)) {
1417 } else if (host[0] == ':') {
1418 /* String is :port */
1421 if (!lport || lport > 65535) {
1422 log_err("fio: bad server port %u\n", port);
1425 /* no hostname given, we are done */
1431 * If no port seen yet, check if there's a last ':' at the end
1434 portp = strchr(host, ',');
1438 lport = atoi(portp);
1439 if (!lport || lport > 65535) {
1440 log_err("fio: bad server port %u\n", port);
1452 *ptr = strdup(host);
1454 if (fio_server_parse_host(*ptr, ipv6, inp, inp6)) {
1461 *port = fio_net_port;
1467 * Server arg should be one of:
1469 * sock:/path/to/socket
1473 * Where sock uses unix domain sockets, and ip binds the server to
1474 * a specific interface. If no arguments are given to the server, it
1475 * uses IP and binds to 0.0.0.0.
1478 static int fio_handle_server_arg(void)
1480 int port = fio_net_port;
1481 int is_sock, ret = 0;
1483 saddr_in.sin_addr.s_addr = htonl(INADDR_ANY);
1485 if (!fio_server_arg)
1488 ret = fio_server_parse_string(fio_server_arg, &bind_sock, &is_sock,
1489 &port, &saddr_in.sin_addr,
1490 &saddr_in6.sin6_addr, &use_ipv6);
1492 if (!is_sock && bind_sock) {
1498 fio_net_port = port;
1499 saddr_in.sin_port = htons(port);
1500 saddr_in6.sin6_port = htons(port);
1504 static int fio_server(void)
1508 dprint(FD_NET, "starting server\n");
1510 if (fio_handle_server_arg())
1513 sk = fio_init_server_connection();
1517 ret = accept_loop(sk);
1521 if (fio_server_arg) {
1522 free(fio_server_arg);
1523 fio_server_arg = NULL;
1531 void fio_server_got_signal(int signal)
1533 if (signal == SIGPIPE)
1536 log_info("\nfio: terminating on signal %d\n", signal);
1541 static int check_existing_pidfile(const char *pidfile)
1548 if (stat(pidfile, &sb))
1551 f = fopen(pidfile, "r");
1555 if (fread(buf, sb.st_size, 1, f) <= 0) {
1562 if (kill(pid, SIGCONT) < 0)
1563 return errno != ESRCH;
1568 static int write_pid(pid_t pid, const char *pidfile)
1572 fpid = fopen(pidfile, "w");
1574 log_err("fio: failed opening pid file %s\n", pidfile);
1578 fprintf(fpid, "%u\n", (unsigned int) pid);
1584 * If pidfile is specified, background us.
1586 int fio_start_server(char *pidfile)
1593 WSAStartup(MAKEWORD(2, 2), &wsd);
1597 return fio_server();
1599 if (check_existing_pidfile(pidfile)) {
1600 log_err("fio: pidfile %s exists and server appears alive\n",
1607 log_err("fio: failed server fork: %s", strerror(errno));
1611 int ret = write_pid(pid, pidfile);
1617 openlog("fio", LOG_NDELAY|LOG_NOWAIT|LOG_PID, LOG_USER);
1619 close(STDIN_FILENO);
1620 close(STDOUT_FILENO);
1621 close(STDERR_FILENO);
1633 void fio_server_set_arg(const char *arg)
1635 fio_server_arg = strdup(arg);