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;
37 static int first_cmd_check;
40 static const char *fio_server_ops[FIO_NET_CMD_NR] = {
60 const char *fio_server_op(unsigned int op)
64 if (op < FIO_NET_CMD_NR)
65 return fio_server_ops[op];
67 sprintf(buf, "UNKNOWN/%d", op);
71 int fio_send_data(int sk, const void *p, unsigned int len)
73 assert(len <= sizeof(struct fio_net_cmd) + FIO_SERVER_MAX_FRAGMENT_PDU);
76 int ret = send(sk, p, len, 0);
86 else if (errno == EAGAIN || errno == EINTR)
90 } while (!exit_backend);
101 int fio_recv_data(int sk, void *p, unsigned int len)
104 int ret = recv(sk, p, len, MSG_WAITALL);
114 else if (errno == EAGAIN || errno == EINTR)
118 } while (!exit_backend);
126 static int verify_convert_cmd(struct fio_net_cmd *cmd)
130 cmd->cmd_crc16 = le16_to_cpu(cmd->cmd_crc16);
131 cmd->pdu_crc16 = le16_to_cpu(cmd->pdu_crc16);
133 crc = fio_crc16(cmd, FIO_NET_CMD_CRC_SZ);
134 if (crc != cmd->cmd_crc16) {
135 log_err("fio: server bad crc on command (got %x, wanted %x)\n",
136 cmd->cmd_crc16, crc);
140 cmd->version = le16_to_cpu(cmd->version);
141 cmd->opcode = le16_to_cpu(cmd->opcode);
142 cmd->flags = le32_to_cpu(cmd->flags);
143 cmd->tag = le64_to_cpu(cmd->tag);
144 cmd->pdu_len = le32_to_cpu(cmd->pdu_len);
146 switch (cmd->version) {
150 log_err("fio: bad server cmd version %d\n", cmd->version);
154 if (cmd->pdu_len > FIO_SERVER_MAX_FRAGMENT_PDU) {
155 log_err("fio: command payload too large: %u\n", cmd->pdu_len);
163 * Read (and defragment, if necessary) incoming commands
165 struct fio_net_cmd *fio_net_recv_cmd(int sk)
167 struct fio_net_cmd cmd, *cmdret = NULL;
168 size_t cmd_size = 0, pdu_offset = 0;
174 ret = fio_recv_data(sk, &cmd, sizeof(cmd));
178 /* We have a command, verify it and swap if need be */
179 ret = verify_convert_cmd(&cmd);
184 /* if this is text, add room for \0 at the end */
185 cmd_size = sizeof(cmd) + cmd.pdu_len + 1;
188 cmd_size += cmd.pdu_len;
190 cmdret = realloc(cmdret, cmd_size);
193 memcpy(cmdret, &cmd, sizeof(cmd));
194 else if (cmdret->opcode != cmd.opcode) {
195 log_err("fio: fragment opcode mismatch (%d != %d)\n",
196 cmdret->opcode, cmd.opcode);
204 /* There's payload, get it */
205 pdu = (void *) cmdret->payload + pdu_offset;
206 ret = fio_recv_data(sk, pdu, cmd.pdu_len);
210 /* Verify payload crc */
211 crc = fio_crc16(pdu, cmd.pdu_len);
212 if (crc != cmd.pdu_crc16) {
213 log_err("fio: server bad crc on payload ");
214 log_err("(got %x, wanted %x)\n", cmd.pdu_crc16, crc);
219 pdu_offset += cmd.pdu_len;
221 cmdret->pdu_len += cmd.pdu_len;
223 } while (cmd.flags & FIO_NET_CMD_F_MORE);
229 /* zero-terminate text input */
230 if (cmdret->pdu_len) {
231 if (cmdret->opcode == FIO_NET_CMD_TEXT) {
232 struct cmd_text_pdu *pdu = (struct cmd_text_pdu *) cmdret->payload;
233 char *buf = (char *) pdu->buf;
235 buf[pdu->buf_len ] = '\0';
236 } else if (cmdret->opcode == FIO_NET_CMD_JOB) {
237 struct cmd_job_pdu *pdu = (struct cmd_job_pdu *) cmdret->payload;
238 char *buf = (char *) pdu->buf;
239 int len = le32_to_cpu(pdu->buf_len);
245 /* frag flag is internal */
246 cmdret->flags &= ~FIO_NET_CMD_F_MORE;
252 void fio_net_cmd_crc_pdu(struct fio_net_cmd *cmd, void *pdu)
256 cmd->cmd_crc16 = __cpu_to_le16(fio_crc16(cmd, FIO_NET_CMD_CRC_SZ));
258 pdu_len = le32_to_cpu(cmd->pdu_len);
259 cmd->pdu_crc16 = __cpu_to_le16(fio_crc16(pdu, pdu_len));
262 void fio_net_cmd_crc(struct fio_net_cmd *cmd)
264 fio_net_cmd_crc_pdu(cmd, cmd->payload);
267 int fio_net_send_cmd(int fd, uint16_t opcode, const void *buf, off_t size,
270 struct fio_net_cmd *cmd = NULL;
271 size_t this_len, cur_len = 0;
276 if (this_len > FIO_SERVER_MAX_FRAGMENT_PDU)
277 this_len = FIO_SERVER_MAX_FRAGMENT_PDU;
279 if (!cmd || cur_len < sizeof(*cmd) + this_len) {
283 cur_len = sizeof(*cmd) + this_len;
284 cmd = malloc(cur_len);
287 fio_init_net_cmd(cmd, opcode, buf, this_len, tag);
290 cmd->flags = __cpu_to_le32(FIO_NET_CMD_F_MORE);
292 fio_net_cmd_crc(cmd);
294 ret = fio_send_data(fd, cmd, sizeof(*cmd) + this_len);
297 } while (!ret && size);
305 static int fio_net_send_simple_stack_cmd(int sk, uint16_t opcode, uint64_t tag)
307 struct fio_net_cmd cmd;
309 fio_init_net_cmd(&cmd, opcode, NULL, 0, tag);
310 fio_net_cmd_crc(&cmd);
312 return fio_send_data(sk, &cmd, sizeof(cmd));
316 * If 'list' is non-NULL, then allocate and store the sent command for
317 * later verification.
319 int fio_net_send_simple_cmd(int sk, uint16_t opcode, uint64_t tag,
320 struct flist_head *list)
322 struct fio_net_int_cmd *cmd;
326 return fio_net_send_simple_stack_cmd(sk, opcode, tag);
328 cmd = malloc(sizeof(*cmd));
330 fio_init_net_cmd(&cmd->cmd, opcode, NULL, 0, (uintptr_t) cmd);
331 fio_net_cmd_crc(&cmd->cmd);
333 INIT_FLIST_HEAD(&cmd->list);
334 gettimeofday(&cmd->tv, NULL);
335 cmd->saved_tag = tag;
337 ret = fio_send_data(sk, &cmd->cmd, sizeof(cmd->cmd));
343 flist_add_tail(&cmd->list, list);
347 static int fio_server_send_quit_cmd(void)
349 dprint(FD_NET, "server: sending quit\n");
350 return fio_net_send_simple_cmd(server_fd, FIO_NET_CMD_QUIT, 0, NULL);
353 static int handle_run_cmd(struct fio_net_cmd *cmd)
355 struct cmd_end_pdu epdu;
361 fio_net_send_cmd(server_fd, FIO_NET_CMD_STOP, &epdu, sizeof(epdu), 0);
363 fio_server_send_quit_cmd();
369 static int handle_job_cmd(struct fio_net_cmd *cmd)
371 struct cmd_job_pdu *pdu = (struct cmd_job_pdu *) cmd->payload;
372 void *buf = pdu->buf;
373 struct cmd_start_pdu spdu;
375 pdu->buf_len = le32_to_cpu(pdu->buf_len);
376 pdu->client_type = le32_to_cpu(pdu->client_type);
378 if (parse_jobs_ini(buf, 1, 0, pdu->client_type)) {
379 fio_server_send_quit_cmd();
383 spdu.jobs = cpu_to_le32(thread_number);
384 fio_net_send_cmd(server_fd, FIO_NET_CMD_START, &spdu, sizeof(spdu), 0);
388 static int handle_jobline_cmd(struct fio_net_cmd *cmd)
390 void *pdu = cmd->payload;
391 struct cmd_single_line_pdu *cslp;
392 struct cmd_line_pdu *clp;
393 unsigned long offset;
394 struct cmd_start_pdu spdu;
399 clp->lines = le16_to_cpu(clp->lines);
400 clp->client_type = le16_to_cpu(clp->client_type);
401 argv = malloc(clp->lines * sizeof(char *));
402 offset = sizeof(*clp);
404 dprint(FD_NET, "server: %d command line args\n", clp->lines);
406 for (i = 0; i < clp->lines; i++) {
408 argv[i] = (char *) cslp->text;
410 offset += sizeof(*cslp) + le16_to_cpu(cslp->len);
411 dprint(FD_NET, "server: %d: %s\n", i, argv[i]);
414 if (parse_cmd_line(clp->lines, argv, clp->client_type)) {
415 fio_server_send_quit_cmd();
422 spdu.jobs = cpu_to_le32(thread_number);
423 fio_net_send_cmd(server_fd, FIO_NET_CMD_START, &spdu, sizeof(spdu), 0);
427 static int handle_probe_cmd(struct fio_net_cmd *cmd)
429 struct cmd_probe_pdu probe;
431 dprint(FD_NET, "server: sending probe reply\n");
433 memset(&probe, 0, sizeof(probe));
434 gethostname((char *) probe.hostname, sizeof(probe.hostname));
435 #ifdef FIO_BIG_ENDIAN
438 probe.fio_major = FIO_MAJOR;
439 probe.fio_minor = FIO_MINOR;
440 probe.fio_patch = FIO_PATCH;
443 probe.arch = FIO_ARCH;
445 probe.bpp = sizeof(void *);
447 return fio_net_send_cmd(server_fd, FIO_NET_CMD_PROBE, &probe, sizeof(probe), cmd->tag);
450 static int handle_send_eta_cmd(struct fio_net_cmd *cmd)
459 size = sizeof(*je) + thread_number * sizeof(char) + 1;
463 if (!calc_thread_status(je, 1)) {
468 dprint(FD_NET, "server sending status\n");
470 je->nr_running = cpu_to_le32(je->nr_running);
471 je->nr_ramp = cpu_to_le32(je->nr_ramp);
472 je->nr_pending = cpu_to_le32(je->nr_pending);
473 je->files_open = cpu_to_le32(je->files_open);
475 for (i = 0; i < 2; i++) {
476 je->m_rate[i] = cpu_to_le32(je->m_rate[i]);
477 je->t_rate[i] = cpu_to_le32(je->t_rate[i]);
478 je->m_iops[i] = cpu_to_le32(je->m_iops[i]);
479 je->t_iops[i] = cpu_to_le32(je->t_iops[i]);
480 je->rate[i] = cpu_to_le32(je->rate[i]);
481 je->iops[i] = cpu_to_le32(je->iops[i]);
484 je->elapsed_sec = cpu_to_le64(je->elapsed_sec);
485 je->eta_sec = cpu_to_le64(je->eta_sec);
486 je->nr_threads = cpu_to_le32(je->nr_threads);
488 fio_net_send_cmd(server_fd, FIO_NET_CMD_ETA, je, size, cmd->tag);
493 static int handle_command(struct fio_net_cmd *cmd)
497 dprint(FD_NET, "server: got op [%s], pdu=%u, tag=%lx\n",
498 fio_server_op(cmd->opcode), cmd->pdu_len, cmd->tag);
500 switch (cmd->opcode) {
501 case FIO_NET_CMD_QUIT:
502 fio_terminate_threads(TERMINATE_ALL);
504 case FIO_NET_CMD_EXIT:
507 case FIO_NET_CMD_JOB:
508 ret = handle_job_cmd(cmd);
510 case FIO_NET_CMD_JOBLINE:
511 ret = handle_jobline_cmd(cmd);
513 case FIO_NET_CMD_PROBE:
514 ret = handle_probe_cmd(cmd);
516 case FIO_NET_CMD_SEND_ETA:
517 ret = handle_send_eta_cmd(cmd);
519 case FIO_NET_CMD_RUN:
520 ret = handle_run_cmd(cmd);
523 log_err("fio: unknown opcode: %s\n",fio_server_op(cmd->opcode));
530 static int handle_connection(int sk, int block)
532 struct fio_net_cmd *cmd = NULL;
536 while (!exit_backend) {
537 struct pollfd pfd = {
544 ret = poll(&pfd, 1, 100);
548 log_err("fio: poll: %s\n", strerror(errno));
556 if (pfd.revents & POLLIN)
558 if (pfd.revents & (POLLERR|POLLHUP)) {
562 } while (!exit_backend);
567 cmd = fio_net_recv_cmd(sk);
573 ret = handle_command(cmd);
587 void fio_server_idle_loop(void)
589 if (!first_cmd_check) {
590 fio_net_send_simple_cmd(server_fd, FIO_NET_CMD_SERVER_START, 0, NULL);
594 handle_connection(server_fd, 0);
597 static int accept_loop(int listen_sk)
599 struct sockaddr_in addr;
600 fio_socklen_t len = sizeof(addr);
602 int ret, sk, flags, exitval = 0;
604 dprint(FD_NET, "server enter accept loop\n");
606 flags = fcntl(listen_sk, F_GETFL);
608 fcntl(listen_sk, F_SETFL, flags);
613 ret = poll(&pfd, 1, 100);
617 log_err("fio: poll: %s\n", strerror(errno));
622 if (pfd.revents & POLLIN)
624 } while (!exit_backend);
629 sk = accept(listen_sk, (struct sockaddr *) &addr, &len);
631 log_err("fio: accept: %s\n", strerror(errno));
635 dprint(FD_NET, "server: connect from %s\n", inet_ntoa(addr.sin_addr));
639 exitval = handle_connection(sk, 1);
651 int fio_server_text_output(int level, const char *buf, size_t len)
653 struct cmd_text_pdu *pdu;
658 return log_local_buf(buf, len);
660 tlen = sizeof(*pdu) + len;
663 pdu->level = __cpu_to_le32(level);
664 pdu->buf_len = __cpu_to_le32(len);
666 gettimeofday(&tv, NULL);
667 pdu->log_sec = __cpu_to_le64(tv.tv_sec);
668 pdu->log_usec = __cpu_to_le64(tv.tv_usec);
670 memcpy(pdu->buf, buf, len);
672 fio_net_send_cmd(server_fd, FIO_NET_CMD_TEXT, pdu, tlen, 0);
677 static void convert_io_stat(struct io_stat *dst, struct io_stat *src)
679 dst->max_val = cpu_to_le64(src->max_val);
680 dst->min_val = cpu_to_le64(src->min_val);
681 dst->samples = cpu_to_le64(src->samples);
684 * Encode to IEEE 754 for network transfer
686 dst->mean.u.i = __cpu_to_le64(fio_double_to_uint64(src->mean.u.f));
687 dst->S.u.i = __cpu_to_le64(fio_double_to_uint64(src->S.u.f));
690 static void convert_gs(struct group_run_stats *dst, struct group_run_stats *src)
694 for (i = 0; i < 2; i++) {
695 dst->max_run[i] = cpu_to_le64(src->max_run[i]);
696 dst->min_run[i] = cpu_to_le64(src->min_run[i]);
697 dst->max_bw[i] = cpu_to_le64(src->max_bw[i]);
698 dst->min_bw[i] = cpu_to_le64(src->min_bw[i]);
699 dst->io_kb[i] = cpu_to_le64(src->io_kb[i]);
700 dst->agg[i] = cpu_to_le64(src->agg[i]);
703 dst->kb_base = cpu_to_le32(src->kb_base);
704 dst->groupid = cpu_to_le32(src->groupid);
708 * Send a CMD_TS, which packs struct thread_stat and group_run_stats
709 * into a single payload.
711 void fio_server_send_ts(struct thread_stat *ts, struct group_run_stats *rs)
716 dprint(FD_NET, "server sending end stats\n");
718 memset(&p, 0, sizeof(p));
720 strcpy(p.ts.name, ts->name);
721 strcpy(p.ts.verror, ts->verror);
722 strcpy(p.ts.description, ts->description);
724 p.ts.error = cpu_to_le32(ts->error);
725 p.ts.groupid = cpu_to_le32(ts->groupid);
726 p.ts.pid = cpu_to_le32(ts->pid);
727 p.ts.members = cpu_to_le32(ts->members);
729 for (i = 0; i < 2; i++) {
730 convert_io_stat(&p.ts.clat_stat[i], &ts->clat_stat[i]);
731 convert_io_stat(&p.ts.slat_stat[i], &ts->slat_stat[i]);
732 convert_io_stat(&p.ts.lat_stat[i], &ts->lat_stat[i]);
733 convert_io_stat(&p.ts.bw_stat[i], &ts->bw_stat[i]);
736 p.ts.usr_time = cpu_to_le64(ts->usr_time);
737 p.ts.sys_time = cpu_to_le64(ts->sys_time);
738 p.ts.ctx = cpu_to_le64(ts->ctx);
739 p.ts.minf = cpu_to_le64(ts->minf);
740 p.ts.majf = cpu_to_le64(ts->majf);
741 p.ts.clat_percentiles = cpu_to_le64(ts->clat_percentiles);
743 for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) {
744 fio_fp64_t *src = &ts->percentile_list[i];
745 fio_fp64_t *dst = &p.ts.percentile_list[i];
747 dst->u.i = __cpu_to_le64(fio_double_to_uint64(src->u.f));
750 for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
751 p.ts.io_u_map[i] = cpu_to_le32(ts->io_u_map[i]);
752 p.ts.io_u_submit[i] = cpu_to_le32(ts->io_u_submit[i]);
753 p.ts.io_u_complete[i] = cpu_to_le32(ts->io_u_complete[i]);
756 for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) {
757 p.ts.io_u_lat_u[i] = cpu_to_le32(ts->io_u_lat_u[i]);
758 p.ts.io_u_lat_m[i] = cpu_to_le32(ts->io_u_lat_m[i]);
761 for (i = 0; i < 2; i++)
762 for (j = 0; j < FIO_IO_U_PLAT_NR; j++)
763 p.ts.io_u_plat[i][j] = cpu_to_le32(ts->io_u_plat[i][j]);
765 for (i = 0; i < 3; i++) {
766 p.ts.total_io_u[i] = cpu_to_le64(ts->total_io_u[i]);
767 p.ts.short_io_u[i] = cpu_to_le64(ts->short_io_u[i]);
770 p.ts.total_submit = cpu_to_le64(ts->total_submit);
771 p.ts.total_complete = cpu_to_le64(ts->total_complete);
773 for (i = 0; i < 2; i++) {
774 p.ts.io_bytes[i] = cpu_to_le64(ts->io_bytes[i]);
775 p.ts.runtime[i] = cpu_to_le64(ts->runtime[i]);
778 p.ts.total_run_time = cpu_to_le64(ts->total_run_time);
779 p.ts.continue_on_error = cpu_to_le16(ts->continue_on_error);
780 p.ts.total_err_count = cpu_to_le64(ts->total_err_count);
781 p.ts.first_error = cpu_to_le32(ts->first_error);
782 p.ts.kb_base = cpu_to_le32(ts->kb_base);
784 convert_gs(&p.rs, rs);
786 fio_net_send_cmd(server_fd, FIO_NET_CMD_TS, &p, sizeof(p), 0);
789 void fio_server_send_gs(struct group_run_stats *rs)
791 struct group_run_stats gs;
793 dprint(FD_NET, "server sending group run stats\n");
796 fio_net_send_cmd(server_fd, FIO_NET_CMD_GS, &gs, sizeof(gs), 0);
799 static void convert_agg(struct disk_util_agg *dst, struct disk_util_agg *src)
803 for (i = 0; i < 2; i++) {
804 dst->ios[i] = cpu_to_le32(src->ios[i]);
805 dst->merges[i] = cpu_to_le32(src->merges[i]);
806 dst->sectors[i] = cpu_to_le64(src->sectors[i]);
807 dst->ticks[i] = cpu_to_le32(src->ticks[i]);
810 dst->io_ticks = cpu_to_le32(src->io_ticks);
811 dst->time_in_queue = cpu_to_le32(src->time_in_queue);
812 dst->slavecount = cpu_to_le32(src->slavecount);
813 dst->max_util.u.i = __cpu_to_le64(fio_double_to_uint64(src->max_util.u.f));
816 static void convert_dus(struct disk_util_stat *dst, struct disk_util_stat *src)
820 strcpy((char *) dst->name, (char *) src->name);
822 for (i = 0; i < 2; i++) {
823 dst->ios[i] = cpu_to_le32(src->ios[i]);
824 dst->merges[i] = cpu_to_le32(src->merges[i]);
825 dst->sectors[i] = cpu_to_le64(src->sectors[i]);
826 dst->ticks[i] = cpu_to_le32(src->ticks[i]);
829 dst->io_ticks = cpu_to_le32(src->io_ticks);
830 dst->time_in_queue = cpu_to_le32(src->time_in_queue);
831 dst->msec = cpu_to_le64(src->msec);
834 void fio_server_send_du(void)
836 struct disk_util *du;
837 struct flist_head *entry;
838 struct cmd_du_pdu pdu;
840 dprint(FD_NET, "server: sending disk_util %d\n", !flist_empty(&disk_list));
842 memset(&pdu, 0, sizeof(pdu));
844 flist_for_each(entry, &disk_list) {
845 du = flist_entry(entry, struct disk_util, list);
847 convert_dus(&pdu.dus, &du->dus);
848 convert_agg(&pdu.agg, &du->agg);
850 fio_net_send_cmd(server_fd, FIO_NET_CMD_DU, &pdu, sizeof(pdu), 0);
854 int fio_send_iolog(struct thread_data *td, struct io_log *log, const char *name)
856 struct cmd_iolog_pdu pdu;
857 struct fio_net_cmd cmd;
862 pdu.nr_samples = __cpu_to_le32(log->nr_samples);
863 pdu.log_type = cpu_to_le32(log->log_type);
864 strcpy((char *) pdu.name, name);
866 for (i = 0; i < log->nr_samples; i++) {
867 struct io_sample *s = &log->log[i];
869 s->time = cpu_to_le64(s->time);
870 s->val = cpu_to_le64(s->val);
871 s->ddir = cpu_to_le32(s->ddir);
872 s->bs = cpu_to_le32(s->bs);
876 * Dirty - since the log is potentially huge, compress it into
877 * FIO_SERVER_MAX_FRAGMENT_PDU chunks and let the receiving
878 * side defragment it.
880 out_pdu = malloc(FIO_SERVER_MAX_FRAGMENT_PDU);
882 stream.zalloc = Z_NULL;
883 stream.zfree = Z_NULL;
884 stream.opaque = Z_NULL;
886 if (deflateInit(&stream, Z_DEFAULT_COMPRESSION) != Z_OK) {
892 * Send header first, it's not compressed.
894 __fio_init_net_cmd(&cmd, FIO_NET_CMD_IOLOG, sizeof(pdu), 0);
895 cmd.flags = __cpu_to_le32(FIO_NET_CMD_F_MORE);
896 fio_net_cmd_crc_pdu(&cmd, &pdu);
897 fio_send_data(server_fd, &cmd, sizeof(cmd));
898 fio_send_data(server_fd, &pdu, sizeof(pdu));
900 stream.next_in = (void *) log->log;
901 stream.avail_in = log->nr_samples * sizeof(struct io_sample);
904 unsigned int this_len;
906 stream.avail_out = FIO_SERVER_MAX_FRAGMENT_PDU;
907 stream.next_out = out_pdu;
908 assert(deflate(&stream, Z_FINISH) == Z_OK);
910 this_len = FIO_SERVER_MAX_FRAGMENT_PDU - stream.avail_out;
912 __fio_init_net_cmd(&cmd, FIO_NET_CMD_IOLOG, this_len, 0);
915 cmd.flags = __cpu_to_le32(FIO_NET_CMD_F_MORE);
917 fio_net_cmd_crc_pdu(&cmd, out_pdu);
919 fio_send_data(server_fd, &cmd, sizeof(cmd));
920 fio_send_data(server_fd, out_pdu, this_len);
921 } while (stream.avail_in);
928 void fio_server_send_add_job(struct thread_options *o, const char *ioengine)
930 struct cmd_add_job_pdu pdu;
932 memset(&pdu, 0, sizeof(pdu));
933 convert_thread_options_to_net(&pdu.top, o);
935 fio_net_send_cmd(server_fd, FIO_NET_CMD_ADD_JOB, &pdu, sizeof(pdu), 0);
938 static int fio_init_server_ip(void)
940 struct sockaddr *addr;
941 fio_socklen_t socklen;
945 sk = socket(AF_INET6, SOCK_STREAM, 0);
947 sk = socket(AF_INET, SOCK_STREAM, 0);
950 log_err("fio: socket: %s\n", strerror(errno));
955 if (setsockopt(sk, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt)) < 0) {
956 log_err("fio: setsockopt: %s\n", strerror(errno));
961 if (setsockopt(sk, SOL_SOCKET, SO_REUSEPORT, &opt, sizeof(opt)) < 0) {
962 log_err("fio: setsockopt: %s\n", strerror(errno));
969 addr = (struct sockaddr *) &saddr_in6;
970 socklen = sizeof(saddr_in6);
971 saddr_in6.sin6_family = AF_INET6;
973 addr = (struct sockaddr *) &saddr_in;
974 socklen = sizeof(saddr_in);
975 saddr_in.sin_family = AF_INET;
978 if (bind(sk, addr, socklen) < 0) {
979 log_err("fio: bind: %s\n", strerror(errno));
987 static int fio_init_server_sock(void)
989 struct sockaddr_un addr;
994 sk = socket(AF_UNIX, SOCK_STREAM, 0);
996 log_err("fio: socket: %s\n", strerror(errno));
1002 memset(&addr, 0, sizeof(addr));
1003 addr.sun_family = AF_UNIX;
1004 strcpy(addr.sun_path, bind_sock);
1007 len = sizeof(addr.sun_family) + strlen(bind_sock) + 1;
1009 if (bind(sk, (struct sockaddr *) &addr, len) < 0) {
1010 log_err("fio: bind: %s\n", strerror(errno));
1019 static int fio_init_server_connection(void)
1024 dprint(FD_NET, "starting server\n");
1027 sk = fio_init_server_ip();
1029 sk = fio_init_server_sock();
1041 src = &saddr_in6.sin6_addr;
1044 src = &saddr_in.sin_addr;
1047 p = (char *) inet_ntop(af, src, bind_str, sizeof(bind_str));
1049 sprintf(port, ",%u", fio_net_port);
1053 strcpy(bind_str, port);
1055 strcpy(bind_str, bind_sock);
1057 log_info("fio: server listening on %s\n", bind_str);
1059 if (listen(sk, 0) < 0) {
1060 log_err("fio: listen: %s\n", strerror(errno));
1067 int fio_server_parse_host(const char *host, int *ipv6, struct in_addr *inp,
1068 struct in6_addr *inp6)
1074 ret = inet_pton(AF_INET6, host, inp6);
1076 ret = inet_pton(AF_INET, host, inp);
1079 struct hostent *hent;
1081 hent = gethostbyname(host);
1083 log_err("fio: failed to resolve <%s>\n", host);
1088 if (hent->h_addrtype != AF_INET6) {
1089 log_info("fio: falling back to IPv4\n");
1092 memcpy(inp6, hent->h_addr_list[0], 16);
1095 if (hent->h_addrtype != AF_INET) {
1096 log_err("fio: lookup type mismatch\n");
1099 memcpy(inp, hent->h_addr_list[0], 4);
1108 * Parse a host/ip/port string. Reads from 'str'.
1113 * *ptr is the host, *port is the port, inp is the destination.
1115 * *ptr is the host, *port is the port, inp6 is the dest, and *ipv6 is 1.
1116 * For local domain sockets:
1117 * *ptr is the filename, *is_sock is 1.
1119 int fio_server_parse_string(const char *str, char **ptr, int *is_sock,
1120 int *port, struct in_addr *inp,
1121 struct in6_addr *inp6, int *ipv6)
1123 const char *host = str;
1129 *port = fio_net_port;
1132 if (!strncmp(str, "sock:", 5)) {
1133 *ptr = strdup(str + 5);
1140 * Is it ip:<ip or host>:port
1142 if (!strncmp(host, "ip:", 3))
1144 else if (!strncmp(host, "ip4:", 4))
1146 else if (!strncmp(host, "ip6:", 4)) {
1149 } else if (host[0] == ':') {
1150 /* String is :port */
1153 if (!lport || lport > 65535) {
1154 log_err("fio: bad server port %u\n", port);
1157 /* no hostname given, we are done */
1163 * If no port seen yet, check if there's a last ':' at the end
1166 portp = strchr(host, ',');
1170 lport = atoi(portp);
1171 if (!lport || lport > 65535) {
1172 log_err("fio: bad server port %u\n", port);
1184 *ptr = strdup(host);
1186 if (fio_server_parse_host(*ptr, ipv6, inp, inp6)) {
1193 *port = fio_net_port;
1199 * Server arg should be one of:
1201 * sock:/path/to/socket
1205 * Where sock uses unix domain sockets, and ip binds the server to
1206 * a specific interface. If no arguments are given to the server, it
1207 * uses IP and binds to 0.0.0.0.
1210 static int fio_handle_server_arg(void)
1212 int port = fio_net_port;
1213 int is_sock, ret = 0;
1215 saddr_in.sin_addr.s_addr = htonl(INADDR_ANY);
1217 if (!fio_server_arg)
1220 ret = fio_server_parse_string(fio_server_arg, &bind_sock, &is_sock,
1221 &port, &saddr_in.sin_addr,
1222 &saddr_in6.sin6_addr, &use_ipv6);
1224 if (!is_sock && bind_sock) {
1230 fio_net_port = port;
1231 saddr_in.sin_port = htons(port);
1232 saddr_in6.sin6_port = htons(port);
1236 static int fio_server(void)
1240 dprint(FD_NET, "starting server\n");
1242 if (fio_handle_server_arg())
1245 sk = fio_init_server_connection();
1249 ret = accept_loop(sk);
1253 if (fio_server_arg) {
1254 free(fio_server_arg);
1255 fio_server_arg = NULL;
1263 void fio_server_got_signal(int signal)
1265 if (signal == SIGPIPE)
1268 log_info("\nfio: terminating on signal %d\n", signal);
1273 static int check_existing_pidfile(const char *pidfile)
1280 if (stat(pidfile, &sb))
1283 f = fopen(pidfile, "r");
1287 if (fread(buf, sb.st_size, 1, f) <= 0) {
1294 if (kill(pid, SIGCONT) < 0)
1295 return errno != ESRCH;
1300 static int write_pid(pid_t pid, const char *pidfile)
1304 fpid = fopen(pidfile, "w");
1306 log_err("fio: failed opening pid file %s\n", pidfile);
1310 fprintf(fpid, "%u\n", (unsigned int) pid);
1316 * If pidfile is specified, background us.
1318 int fio_start_server(char *pidfile)
1325 WSAStartup(MAKEWORD(2,2), &wsd);
1329 return fio_server();
1331 if (check_existing_pidfile(pidfile)) {
1332 log_err("fio: pidfile %s exists and server appears alive\n",
1339 log_err("fio: failed server fork: %s", strerror(errno));
1343 int ret = write_pid(pid, pidfile);
1349 openlog("fio", LOG_NDELAY|LOG_NOWAIT|LOG_PID, LOG_USER);
1351 close(STDIN_FILENO);
1352 close(STDOUT_FILENO);
1353 close(STDERR_FILENO);
1365 void fio_server_set_arg(const char *arg)
1367 fio_server_arg = strdup(arg);