10 #include <sys/socket.h>
14 #include <netinet/in.h>
15 #include <arpa/inet.h>
26 #include "crc/crc16.h"
27 #include "lib/ieee754.h"
31 int fio_net_port = FIO_NET_PORT;
44 struct flist_head list; /* link on sk_out->list */
45 int flags; /* SK_F_* */
46 int opcode; /* Actual command fields */
50 struct flist_head next; /* Other sk_entry's, if linked command */
54 unsigned int refs; /* frees sk_out when it drops to zero.
55 * protected by below ->lock */
57 int sk; /* socket fd to talk to client */
58 struct fio_mutex lock; /* protects ref and below list */
59 struct flist_head list; /* list of pending transmit work */
60 struct fio_mutex wait; /* wake backend when items added to list */
61 struct fio_mutex xmit; /* held while sending data */
64 static char *fio_server_arg;
65 static char *bind_sock;
66 static struct sockaddr_in saddr_in;
67 static struct sockaddr_in6 saddr_in6;
70 static unsigned int has_zlib = 1;
72 static unsigned int has_zlib = 0;
74 static unsigned int use_zlib;
77 static pthread_key_t sk_out_key;
79 struct fio_fork_item {
80 struct flist_head list;
88 struct fio_mutex lock;
94 static const char *fio_server_ops[FIO_NET_CMD_NR] = {
119 static void sk_lock(struct sk_out *sk_out)
121 fio_mutex_down(&sk_out->lock);
124 static void sk_unlock(struct sk_out *sk_out)
126 fio_mutex_up(&sk_out->lock);
129 void sk_out_assign(struct sk_out *sk_out)
137 pthread_setspecific(sk_out_key, sk_out);
140 static void sk_out_free(struct sk_out *sk_out)
142 __fio_mutex_remove(&sk_out->lock);
143 __fio_mutex_remove(&sk_out->wait);
144 __fio_mutex_remove(&sk_out->xmit);
148 static int __sk_out_drop(struct sk_out *sk_out)
154 refs = --sk_out->refs;
166 void sk_out_drop(void)
168 struct sk_out *sk_out;
170 sk_out = pthread_getspecific(sk_out_key);
171 if (!__sk_out_drop(sk_out))
172 pthread_setspecific(sk_out_key, NULL);
175 static void __fio_init_net_cmd(struct fio_net_cmd *cmd, uint16_t opcode,
176 uint32_t pdu_len, uint64_t tag)
178 memset(cmd, 0, sizeof(*cmd));
180 cmd->version = __cpu_to_le16(FIO_SERVER_VER);
181 cmd->opcode = cpu_to_le16(opcode);
182 cmd->tag = cpu_to_le64(tag);
183 cmd->pdu_len = cpu_to_le32(pdu_len);
187 static void fio_init_net_cmd(struct fio_net_cmd *cmd, uint16_t opcode,
188 const void *pdu, uint32_t pdu_len, uint64_t tag)
190 __fio_init_net_cmd(cmd, opcode, pdu_len, tag);
193 memcpy(&cmd->payload, pdu, pdu_len);
196 const char *fio_server_op(unsigned int op)
200 if (op < FIO_NET_CMD_NR)
201 return fio_server_ops[op];
203 sprintf(buf, "UNKNOWN/%d", op);
207 static ssize_t iov_total_len(const struct iovec *iov, int count)
219 static int fio_sendv_data(int sk, struct iovec *iov, int count)
221 ssize_t total_len = iov_total_len(iov, count);
225 ret = writev(sk, iov, count);
232 if (ret >= iov->iov_len) {
237 iov->iov_base += ret;
243 else if (errno == EAGAIN || errno == EINTR)
247 } while (!exit_backend);
255 static int fio_send_data(int sk, const void *p, unsigned int len)
257 struct iovec iov = { .iov_base = (void *) p, .iov_len = len };
259 assert(len <= sizeof(struct fio_net_cmd) + FIO_SERVER_MAX_FRAGMENT_PDU);
261 return fio_sendv_data(sk, &iov, 1);
264 static int fio_recv_data(int sk, void *p, unsigned int len)
267 int ret = recv(sk, p, len, MSG_WAITALL);
277 else if (errno == EAGAIN || errno == EINTR)
281 } while (!exit_backend);
289 static int verify_convert_cmd(struct fio_net_cmd *cmd)
293 cmd->cmd_crc16 = le16_to_cpu(cmd->cmd_crc16);
294 cmd->pdu_crc16 = le16_to_cpu(cmd->pdu_crc16);
296 crc = fio_crc16(cmd, FIO_NET_CMD_CRC_SZ);
297 if (crc != cmd->cmd_crc16) {
298 log_err("fio: server bad crc on command (got %x, wanted %x)\n",
299 cmd->cmd_crc16, crc);
303 cmd->version = le16_to_cpu(cmd->version);
304 cmd->opcode = le16_to_cpu(cmd->opcode);
305 cmd->flags = le32_to_cpu(cmd->flags);
306 cmd->tag = le64_to_cpu(cmd->tag);
307 cmd->pdu_len = le32_to_cpu(cmd->pdu_len);
309 switch (cmd->version) {
313 log_err("fio: bad server cmd version %d\n", cmd->version);
317 if (cmd->pdu_len > FIO_SERVER_MAX_FRAGMENT_PDU) {
318 log_err("fio: command payload too large: %u\n", cmd->pdu_len);
326 * Read (and defragment, if necessary) incoming commands
328 struct fio_net_cmd *fio_net_recv_cmd(int sk)
330 struct fio_net_cmd cmd, *tmp, *cmdret = NULL;
331 size_t cmd_size = 0, pdu_offset = 0;
337 ret = fio_recv_data(sk, &cmd, sizeof(cmd));
341 /* We have a command, verify it and swap if need be */
342 ret = verify_convert_cmd(&cmd);
347 /* if this is text, add room for \0 at the end */
348 cmd_size = sizeof(cmd) + cmd.pdu_len + 1;
351 cmd_size += cmd.pdu_len;
353 if (cmd_size / 1024 > FIO_SERVER_MAX_CMD_MB * 1024) {
354 log_err("fio: cmd+pdu too large (%llu)\n", (unsigned long long) cmd_size);
359 tmp = realloc(cmdret, cmd_size);
361 log_err("fio: server failed allocating cmd\n");
368 memcpy(cmdret, &cmd, sizeof(cmd));
369 else if (cmdret->opcode != cmd.opcode) {
370 log_err("fio: fragment opcode mismatch (%d != %d)\n",
371 cmdret->opcode, cmd.opcode);
379 /* There's payload, get it */
380 pdu = (void *) cmdret->payload + pdu_offset;
381 ret = fio_recv_data(sk, pdu, cmd.pdu_len);
385 /* Verify payload crc */
386 crc = fio_crc16(pdu, cmd.pdu_len);
387 if (crc != cmd.pdu_crc16) {
388 log_err("fio: server bad crc on payload ");
389 log_err("(got %x, wanted %x)\n", cmd.pdu_crc16, crc);
394 pdu_offset += cmd.pdu_len;
396 cmdret->pdu_len += cmd.pdu_len;
398 } while (cmd.flags & FIO_NET_CMD_F_MORE);
404 /* zero-terminate text input */
405 if (cmdret->pdu_len) {
406 if (cmdret->opcode == FIO_NET_CMD_TEXT) {
407 struct cmd_text_pdu *__pdu = (struct cmd_text_pdu *) cmdret->payload;
408 char *buf = (char *) __pdu->buf;
410 buf[__pdu->buf_len] = '\0';
411 } else if (cmdret->opcode == FIO_NET_CMD_JOB) {
412 struct cmd_job_pdu *__pdu = (struct cmd_job_pdu *) cmdret->payload;
413 char *buf = (char *) __pdu->buf;
414 int len = le32_to_cpu(__pdu->buf_len);
420 /* frag flag is internal */
421 cmdret->flags &= ~FIO_NET_CMD_F_MORE;
427 static void add_reply(uint64_t tag, struct flist_head *list)
429 struct fio_net_cmd_reply *reply;
431 reply = (struct fio_net_cmd_reply *) (uintptr_t) tag;
432 flist_add_tail(&reply->list, list);
435 static uint64_t alloc_reply(uint64_t tag, uint16_t opcode)
437 struct fio_net_cmd_reply *reply;
439 reply = calloc(1, sizeof(*reply));
440 INIT_FLIST_HEAD(&reply->list);
441 fio_gettime(&reply->tv, NULL);
442 reply->saved_tag = tag;
443 reply->opcode = opcode;
445 return (uintptr_t) reply;
448 static void free_reply(uint64_t tag)
450 struct fio_net_cmd_reply *reply;
452 reply = (struct fio_net_cmd_reply *) (uintptr_t) tag;
456 static void fio_net_cmd_crc_pdu(struct fio_net_cmd *cmd, const void *pdu)
460 cmd->cmd_crc16 = __cpu_to_le16(fio_crc16(cmd, FIO_NET_CMD_CRC_SZ));
462 pdu_len = le32_to_cpu(cmd->pdu_len);
463 cmd->pdu_crc16 = __cpu_to_le16(fio_crc16(pdu, pdu_len));
466 static void fio_net_cmd_crc(struct fio_net_cmd *cmd)
468 fio_net_cmd_crc_pdu(cmd, cmd->payload);
471 int fio_net_send_cmd(int fd, uint16_t opcode, const void *buf, off_t size,
472 uint64_t *tagptr, struct flist_head *list)
474 struct fio_net_cmd *cmd = NULL;
475 size_t this_len, cur_len = 0;
481 tag = *tagptr = alloc_reply(*tagptr, opcode);
483 tag = tagptr ? *tagptr : 0;
487 if (this_len > FIO_SERVER_MAX_FRAGMENT_PDU)
488 this_len = FIO_SERVER_MAX_FRAGMENT_PDU;
490 if (!cmd || cur_len < sizeof(*cmd) + this_len) {
494 cur_len = sizeof(*cmd) + this_len;
495 cmd = malloc(cur_len);
498 fio_init_net_cmd(cmd, opcode, buf, this_len, tag);
501 cmd->flags = __cpu_to_le32(FIO_NET_CMD_F_MORE);
503 fio_net_cmd_crc(cmd);
505 ret = fio_send_data(fd, cmd, sizeof(*cmd) + this_len);
508 } while (!ret && size);
514 add_reply(tag, list);
523 static struct sk_entry *fio_net_prep_cmd(uint16_t opcode, void *buf,
524 size_t size, uint64_t *tagptr,
527 struct sk_entry *entry;
529 entry = smalloc(sizeof(*entry));
530 INIT_FLIST_HEAD(&entry->next);
531 entry->opcode = opcode;
532 if (flags & SK_F_COPY) {
533 entry->buf = smalloc(size);
534 memcpy(entry->buf, buf, size);
540 entry->tag = *tagptr;
543 entry->flags = flags;
547 static int handle_sk_entry(struct sk_out *sk_out, struct sk_entry *entry);
549 static void fio_net_queue_entry(struct sk_entry *entry)
551 struct sk_out *sk_out = pthread_getspecific(sk_out_key);
553 if (entry->flags & SK_F_INLINE)
554 handle_sk_entry(sk_out, entry);
557 flist_add_tail(&entry->list, &sk_out->list);
560 fio_mutex_up(&sk_out->wait);
564 static int fio_net_queue_cmd(uint16_t opcode, void *buf, off_t size,
565 uint64_t *tagptr, int flags)
567 struct sk_entry *entry;
569 entry = fio_net_prep_cmd(opcode, buf, size, tagptr, flags);
570 fio_net_queue_entry(entry);
574 static int fio_net_send_simple_stack_cmd(int sk, uint16_t opcode, uint64_t tag)
576 struct fio_net_cmd cmd;
578 fio_init_net_cmd(&cmd, opcode, NULL, 0, tag);
579 fio_net_cmd_crc(&cmd);
581 return fio_send_data(sk, &cmd, sizeof(cmd));
585 * If 'list' is non-NULL, then allocate and store the sent command for
586 * later verification.
588 int fio_net_send_simple_cmd(int sk, uint16_t opcode, uint64_t tag,
589 struct flist_head *list)
594 tag = alloc_reply(tag, opcode);
596 ret = fio_net_send_simple_stack_cmd(sk, opcode, tag);
605 add_reply(tag, list);
610 static int fio_net_queue_quit(void)
612 dprint(FD_NET, "server: sending quit\n");
614 return fio_net_queue_cmd(FIO_NET_CMD_QUIT, NULL, 0, 0, SK_F_SIMPLE);
617 int fio_net_send_quit(int sk)
619 dprint(FD_NET, "server: sending quit\n");
621 return fio_net_send_simple_cmd(sk, FIO_NET_CMD_QUIT, 0, NULL);
624 static int fio_net_send_ack(struct fio_net_cmd *cmd, int error, int signal)
626 struct cmd_end_pdu epdu;
632 epdu.error = __cpu_to_le32(error);
633 epdu.signal = __cpu_to_le32(signal);
634 return fio_net_queue_cmd(FIO_NET_CMD_STOP, &epdu, sizeof(epdu), &tag, SK_F_COPY);
637 static int fio_net_queue_stop(int error, int signal)
639 dprint(FD_NET, "server: sending stop (%d, %d)\n", error, signal);
640 return fio_net_send_ack(NULL, error, signal);
643 static void fio_server_add_fork_item(pid_t pid, struct flist_head *list)
645 struct fio_fork_item *ffi;
647 ffi = malloc(sizeof(*ffi));
652 flist_add_tail(&ffi->list, list);
655 static void fio_server_add_conn_pid(struct flist_head *conn_list, pid_t pid)
657 dprint(FD_NET, "server: forked off connection job (pid=%u)\n", (int) pid);
658 fio_server_add_fork_item(pid, conn_list);
661 static void fio_server_add_job_pid(struct flist_head *job_list, pid_t pid)
663 dprint(FD_NET, "server: forked off job job (pid=%u)\n", (int) pid);
664 fio_server_add_fork_item(pid, job_list);
667 static void fio_server_check_fork_item(struct fio_fork_item *ffi)
671 ret = waitpid(ffi->pid, &status, WNOHANG);
673 if (errno == ECHILD) {
674 log_err("fio: connection pid %u disappeared\n", (int) ffi->pid);
677 log_err("fio: waitpid: %s\n", strerror(errno));
678 } else if (ret == ffi->pid) {
679 if (WIFSIGNALED(status)) {
680 ffi->signal = WTERMSIG(status);
683 if (WIFEXITED(status)) {
684 if (WEXITSTATUS(status))
685 ffi->exitval = WEXITSTATUS(status);
691 static void fio_server_fork_item_done(struct fio_fork_item *ffi, bool stop)
693 dprint(FD_NET, "pid %u exited, sig=%u, exitval=%d\n", (int) ffi->pid, ffi->signal, ffi->exitval);
696 * Fold STOP and QUIT...
699 fio_net_queue_stop(ffi->exitval, ffi->signal);
700 fio_net_queue_quit();
703 flist_del(&ffi->list);
707 static void fio_server_check_fork_items(struct flist_head *list, bool stop)
709 struct flist_head *entry, *tmp;
710 struct fio_fork_item *ffi;
712 flist_for_each_safe(entry, tmp, list) {
713 ffi = flist_entry(entry, struct fio_fork_item, list);
715 fio_server_check_fork_item(ffi);
718 fio_server_fork_item_done(ffi, stop);
722 static void fio_server_check_jobs(struct flist_head *job_list)
724 fio_server_check_fork_items(job_list, true);
727 static void fio_server_check_conns(struct flist_head *conn_list)
729 fio_server_check_fork_items(conn_list, false);
732 static int handle_load_file_cmd(struct fio_net_cmd *cmd)
734 struct cmd_load_file_pdu *pdu = (struct cmd_load_file_pdu *) cmd->payload;
735 void *file_name = pdu->file;
736 struct cmd_start_pdu spdu;
738 dprint(FD_NET, "server: loading local file %s\n", (char *) file_name);
740 pdu->name_len = le16_to_cpu(pdu->name_len);
741 pdu->client_type = le16_to_cpu(pdu->client_type);
743 if (parse_jobs_ini(file_name, 0, 0, pdu->client_type)) {
744 fio_net_queue_quit();
748 spdu.jobs = cpu_to_le32(thread_number);
749 spdu.stat_outputs = cpu_to_le32(stat_number);
750 fio_net_queue_cmd(FIO_NET_CMD_START, &spdu, sizeof(spdu), NULL, SK_F_COPY);
754 static int handle_run_cmd(struct sk_out *sk_out, struct flist_head *job_list,
755 struct fio_net_cmd *cmd)
765 fio_server_add_job_pid(job_list, pid);
769 ret = fio_backend(sk_out);
774 static int handle_job_cmd(struct fio_net_cmd *cmd)
776 struct cmd_job_pdu *pdu = (struct cmd_job_pdu *) cmd->payload;
777 void *buf = pdu->buf;
778 struct cmd_start_pdu spdu;
780 pdu->buf_len = le32_to_cpu(pdu->buf_len);
781 pdu->client_type = le32_to_cpu(pdu->client_type);
783 if (parse_jobs_ini(buf, 1, 0, pdu->client_type)) {
784 fio_net_queue_quit();
788 spdu.jobs = cpu_to_le32(thread_number);
789 spdu.stat_outputs = cpu_to_le32(stat_number);
791 fio_net_queue_cmd(FIO_NET_CMD_START, &spdu, sizeof(spdu), NULL, SK_F_COPY);
795 static int handle_jobline_cmd(struct fio_net_cmd *cmd)
797 void *pdu = cmd->payload;
798 struct cmd_single_line_pdu *cslp;
799 struct cmd_line_pdu *clp;
800 unsigned long offset;
801 struct cmd_start_pdu spdu;
806 clp->lines = le16_to_cpu(clp->lines);
807 clp->client_type = le16_to_cpu(clp->client_type);
808 argv = malloc(clp->lines * sizeof(char *));
809 offset = sizeof(*clp);
811 dprint(FD_NET, "server: %d command line args\n", clp->lines);
813 for (i = 0; i < clp->lines; i++) {
815 argv[i] = (char *) cslp->text;
817 offset += sizeof(*cslp) + le16_to_cpu(cslp->len);
818 dprint(FD_NET, "server: %d: %s\n", i, argv[i]);
821 if (parse_cmd_line(clp->lines, argv, clp->client_type)) {
822 fio_net_queue_quit();
829 spdu.jobs = cpu_to_le32(thread_number);
830 spdu.stat_outputs = cpu_to_le32(stat_number);
832 fio_net_queue_cmd(FIO_NET_CMD_START, &spdu, sizeof(spdu), NULL, SK_F_COPY);
836 static int handle_probe_cmd(struct fio_net_cmd *cmd)
838 struct cmd_client_probe_pdu *pdu = (struct cmd_client_probe_pdu *) cmd->payload;
839 struct cmd_probe_reply_pdu probe;
840 uint64_t tag = cmd->tag;
842 dprint(FD_NET, "server: sending probe reply\n");
844 strcpy(me, (char *) pdu->server);
846 memset(&probe, 0, sizeof(probe));
847 gethostname((char *) probe.hostname, sizeof(probe.hostname));
848 #ifdef CONFIG_BIG_ENDIAN
851 strncpy((char *) probe.fio_version, fio_version_string, sizeof(probe.fio_version));
854 probe.arch = FIO_ARCH;
855 probe.bpp = sizeof(void *);
856 probe.cpus = __cpu_to_le32(cpus_online());
859 * If the client supports compression and we do too, then enable it
861 if (has_zlib && le64_to_cpu(pdu->flags) & FIO_PROBE_FLAG_ZLIB) {
862 probe.flags = __cpu_to_le64(FIO_PROBE_FLAG_ZLIB);
869 return fio_net_queue_cmd(FIO_NET_CMD_PROBE, &probe, sizeof(probe), &tag, SK_F_COPY);
872 static int handle_send_eta_cmd(struct fio_net_cmd *cmd)
875 uint64_t tag = cmd->tag;
879 dprint(FD_NET, "server sending status\n");
882 * Fake ETA return if we don't have a local one, otherwise the client
883 * will end up timing out waiting for a response to the ETA request
885 je = get_jobs_eta(true, &size);
888 je = calloc(1, size);
890 je->nr_running = cpu_to_le32(je->nr_running);
891 je->nr_ramp = cpu_to_le32(je->nr_ramp);
892 je->nr_pending = cpu_to_le32(je->nr_pending);
893 je->nr_setting_up = cpu_to_le32(je->nr_setting_up);
894 je->files_open = cpu_to_le32(je->files_open);
896 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
897 je->m_rate[i] = cpu_to_le32(je->m_rate[i]);
898 je->t_rate[i] = cpu_to_le32(je->t_rate[i]);
899 je->m_iops[i] = cpu_to_le32(je->m_iops[i]);
900 je->t_iops[i] = cpu_to_le32(je->t_iops[i]);
901 je->rate[i] = cpu_to_le32(je->rate[i]);
902 je->iops[i] = cpu_to_le32(je->iops[i]);
905 je->elapsed_sec = cpu_to_le64(je->elapsed_sec);
906 je->eta_sec = cpu_to_le64(je->eta_sec);
907 je->nr_threads = cpu_to_le32(je->nr_threads);
908 je->is_pow2 = cpu_to_le32(je->is_pow2);
909 je->unit_base = cpu_to_le32(je->unit_base);
912 fio_net_queue_cmd(FIO_NET_CMD_ETA, je, size, &tag, SK_F_FREE);
916 static int send_update_job_reply(uint64_t __tag, int error)
918 uint64_t tag = __tag;
921 pdu_error = __cpu_to_le32(error);
922 return fio_net_queue_cmd(FIO_NET_CMD_UPDATE_JOB, &pdu_error, sizeof(pdu_error), &tag, SK_F_COPY);
925 static int handle_update_job_cmd(struct fio_net_cmd *cmd)
927 struct cmd_add_job_pdu *pdu = (struct cmd_add_job_pdu *) cmd->payload;
928 struct thread_data *td;
931 tnumber = le32_to_cpu(pdu->thread_number);
933 dprint(FD_NET, "server: updating options for job %u\n", tnumber);
935 if (!tnumber || tnumber > thread_number) {
936 send_update_job_reply(cmd->tag, ENODEV);
940 td = &threads[tnumber - 1];
941 convert_thread_options_to_cpu(&td->o, &pdu->top);
942 send_update_job_reply(cmd->tag, 0);
946 static int handle_trigger_cmd(struct fio_net_cmd *cmd)
948 struct cmd_vtrigger_pdu *pdu = (struct cmd_vtrigger_pdu *) cmd->payload;
949 char *buf = (char *) pdu->cmd;
950 struct all_io_list *rep;
953 pdu->len = le16_to_cpu(pdu->len);
954 buf[pdu->len] = '\0';
956 rep = get_all_io_list(IO_LIST_ALL, &sz);
958 struct all_io_list state;
960 state.threads = cpu_to_le64((uint64_t) 0);
961 fio_net_queue_cmd(FIO_NET_CMD_VTRIGGER, &state, sizeof(state), NULL, SK_F_COPY);
963 fio_net_queue_cmd(FIO_NET_CMD_VTRIGGER, rep, sz, NULL, SK_F_FREE);
969 static int handle_command(struct sk_out *sk_out, struct flist_head *job_list,
970 struct fio_net_cmd *cmd)
974 dprint(FD_NET, "server: got op [%s], pdu=%u, tag=%llx\n",
975 fio_server_op(cmd->opcode), cmd->pdu_len,
976 (unsigned long long) cmd->tag);
978 switch (cmd->opcode) {
979 case FIO_NET_CMD_QUIT:
980 fio_terminate_threads(TERMINATE_ALL);
983 case FIO_NET_CMD_EXIT:
986 case FIO_NET_CMD_LOAD_FILE:
987 ret = handle_load_file_cmd(cmd);
989 case FIO_NET_CMD_JOB:
990 ret = handle_job_cmd(cmd);
992 case FIO_NET_CMD_JOBLINE:
993 ret = handle_jobline_cmd(cmd);
995 case FIO_NET_CMD_PROBE:
996 ret = handle_probe_cmd(cmd);
998 case FIO_NET_CMD_SEND_ETA:
999 ret = handle_send_eta_cmd(cmd);
1001 case FIO_NET_CMD_RUN:
1002 ret = handle_run_cmd(sk_out, job_list, cmd);
1004 case FIO_NET_CMD_UPDATE_JOB:
1005 ret = handle_update_job_cmd(cmd);
1007 case FIO_NET_CMD_VTRIGGER:
1008 ret = handle_trigger_cmd(cmd);
1010 case FIO_NET_CMD_SENDFILE: {
1011 struct cmd_sendfile_reply *in;
1012 struct cmd_reply *rep;
1014 rep = (struct cmd_reply *) (uintptr_t) cmd->tag;
1016 in = (struct cmd_sendfile_reply *) cmd->payload;
1017 in->size = le32_to_cpu(in->size);
1018 in->error = le32_to_cpu(in->error);
1021 rep->error = in->error;
1024 rep->data = smalloc(in->size);
1027 rep->error = ENOMEM;
1029 rep->size = in->size;
1030 memcpy(rep->data, in->data, in->size);
1033 fio_mutex_up(&rep->lock);
1037 log_err("fio: unknown opcode: %s\n", fio_server_op(cmd->opcode));
1045 * Send a command with a separate PDU, not inlined in the command
1047 static int fio_send_cmd_ext_pdu(int sk, uint16_t opcode, const void *buf,
1048 off_t size, uint64_t tag, uint32_t flags)
1050 struct fio_net_cmd cmd;
1051 struct iovec iov[2];
1053 iov[0].iov_base = (void *) &cmd;
1054 iov[0].iov_len = sizeof(cmd);
1055 iov[1].iov_base = (void *) buf;
1056 iov[1].iov_len = size;
1058 __fio_init_net_cmd(&cmd, opcode, size, tag);
1059 cmd.flags = __cpu_to_le32(flags);
1060 fio_net_cmd_crc_pdu(&cmd, buf);
1062 return fio_sendv_data(sk, iov, 2);
1065 static void finish_entry(struct sk_entry *entry)
1067 if (entry->flags & SK_F_FREE)
1069 else if (entry->flags & SK_F_COPY)
1075 static void entry_set_flags(struct sk_entry *entry, struct flist_head *list,
1076 unsigned int *flags)
1078 if (!flist_empty(list))
1079 *flags = FIO_NET_CMD_F_MORE;
1084 static int send_vec_entry(struct sk_out *sk_out, struct sk_entry *first)
1089 entry_set_flags(first, &first->next, &flags);
1091 ret = fio_send_cmd_ext_pdu(sk_out->sk, first->opcode, first->buf,
1092 first->size, first->tag, flags);
1094 while (!flist_empty(&first->next)) {
1095 struct sk_entry *next;
1097 next = flist_first_entry(&first->next, struct sk_entry, list);
1098 flist_del_init(&next->list);
1100 entry_set_flags(next, &first->next, &flags);
1102 ret += fio_send_cmd_ext_pdu(sk_out->sk, next->opcode, next->buf,
1103 next->size, next->tag, flags);
1110 static int handle_sk_entry(struct sk_out *sk_out, struct sk_entry *entry)
1114 fio_mutex_down(&sk_out->xmit);
1116 if (entry->flags & SK_F_VEC)
1117 ret = send_vec_entry(sk_out, entry);
1118 else if (entry->flags & SK_F_SIMPLE) {
1119 ret = fio_net_send_simple_cmd(sk_out->sk, entry->opcode,
1122 ret = fio_net_send_cmd(sk_out->sk, entry->opcode, entry->buf,
1123 entry->size, &entry->tag, NULL);
1126 fio_mutex_up(&sk_out->xmit);
1129 log_err("fio: failed handling cmd %s\n", fio_server_op(entry->opcode));
1131 finish_entry(entry);
1135 static int handle_xmits(struct sk_out *sk_out)
1137 struct sk_entry *entry;
1142 if (flist_empty(&sk_out->list)) {
1147 flist_splice_init(&sk_out->list, &list);
1150 while (!flist_empty(&list)) {
1151 entry = flist_entry(list.next, struct sk_entry, list);
1152 flist_del(&entry->list);
1153 ret += handle_sk_entry(sk_out, entry);
1159 static int handle_connection(struct sk_out *sk_out)
1161 struct fio_net_cmd *cmd = NULL;
1162 FLIST_HEAD(job_list);
1168 while (!exit_backend) {
1169 struct pollfd pfd = {
1178 if (!flist_empty(&job_list))
1181 handle_xmits(sk_out);
1183 ret = poll(&pfd, 1, 0);
1187 log_err("fio: poll: %s\n", strerror(errno));
1190 fio_server_check_jobs(&job_list);
1191 fio_mutex_down_timeout(&sk_out->wait, timeout);
1195 if (pfd.revents & POLLIN)
1197 if (pfd.revents & (POLLERR|POLLHUP)) {
1201 } while (!exit_backend);
1203 fio_server_check_jobs(&job_list);
1208 cmd = fio_net_recv_cmd(sk_out->sk);
1214 ret = handle_command(sk_out, &job_list, cmd);
1225 handle_xmits(sk_out);
1229 __sk_out_drop(sk_out);
1233 /* get the address on this host bound by the input socket,
1234 * whether it is ipv6 or ipv4 */
1236 static int get_my_addr_str(int sk)
1238 struct sockaddr_in6 myaddr6 = { 0, };
1239 struct sockaddr_in myaddr4 = { 0, };
1240 struct sockaddr *sockaddr_p;
1246 len = sizeof(myaddr6);
1247 sockaddr_p = (struct sockaddr * )&myaddr6;
1248 net_addr = (char * )&myaddr6.sin6_addr;
1250 len = sizeof(myaddr4);
1251 sockaddr_p = (struct sockaddr * )&myaddr4;
1252 net_addr = (char * )&myaddr4.sin_addr;
1255 ret = getsockname(sk, sockaddr_p, &len);
1257 log_err("fio: getsockaddr: %s\n", strerror(errno));
1261 if (!inet_ntop(use_ipv6?AF_INET6:AF_INET, net_addr, client_sockaddr_str, INET6_ADDRSTRLEN - 1)) {
1262 log_err("inet_ntop: failed to convert addr to string\n");
1266 dprint(FD_NET, "fio server bound to addr %s\n", client_sockaddr_str);
1270 static int accept_loop(int listen_sk)
1272 struct sockaddr_in addr;
1273 struct sockaddr_in6 addr6;
1274 socklen_t len = use_ipv6 ? sizeof(addr6) : sizeof(addr);
1276 int ret = 0, sk, exitval = 0;
1277 FLIST_HEAD(conn_list);
1279 dprint(FD_NET, "server enter accept loop\n");
1281 fio_set_fd_nonblocking(listen_sk, "server");
1283 while (!exit_backend) {
1284 struct sk_out *sk_out;
1290 pfd.events = POLLIN;
1294 if (!flist_empty(&conn_list))
1297 ret = poll(&pfd, 1, timeout);
1301 log_err("fio: poll: %s\n", strerror(errno));
1304 fio_server_check_conns(&conn_list);
1308 if (pfd.revents & POLLIN)
1310 } while (!exit_backend);
1312 fio_server_check_conns(&conn_list);
1314 if (exit_backend || ret < 0)
1318 sk = accept(listen_sk, (struct sockaddr *) &addr6, &len);
1320 sk = accept(listen_sk, (struct sockaddr *) &addr, &len);
1323 log_err("fio: accept: %s\n", strerror(errno));
1328 from = inet_ntop(AF_INET6, (struct sockaddr *) &addr6.sin6_addr, buf, sizeof(buf));
1330 from = inet_ntop(AF_INET, (struct sockaddr *) &addr.sin_addr, buf, sizeof(buf));
1332 dprint(FD_NET, "server: connect from %s\n", from);
1334 sk_out = smalloc(sizeof(*sk_out));
1336 INIT_FLIST_HEAD(&sk_out->list);
1337 __fio_mutex_init(&sk_out->lock, FIO_MUTEX_UNLOCKED);
1338 __fio_mutex_init(&sk_out->wait, FIO_MUTEX_LOCKED);
1339 __fio_mutex_init(&sk_out->xmit, FIO_MUTEX_UNLOCKED);
1344 fio_server_add_conn_pid(&conn_list, pid);
1348 /* if error, it's already logged, non-fatal */
1349 get_my_addr_str(sk);
1352 * Assign sk_out here, it'll be dropped in handle_connection()
1353 * since that function calls _exit() when done
1355 sk_out_assign(sk_out);
1356 handle_connection(sk_out);
1362 int fio_server_text_output(int level, const char *buf, size_t len)
1364 struct sk_out *sk_out = pthread_getspecific(sk_out_key);
1365 struct cmd_text_pdu *pdu;
1369 if (!sk_out || sk_out->sk == -1)
1372 tlen = sizeof(*pdu) + len;
1375 pdu->level = __cpu_to_le32(level);
1376 pdu->buf_len = __cpu_to_le32(len);
1378 gettimeofday(&tv, NULL);
1379 pdu->log_sec = __cpu_to_le64(tv.tv_sec);
1380 pdu->log_usec = __cpu_to_le64(tv.tv_usec);
1382 memcpy(pdu->buf, buf, len);
1384 fio_net_queue_cmd(FIO_NET_CMD_TEXT, pdu, tlen, NULL, SK_F_COPY);
1389 static void convert_io_stat(struct io_stat *dst, struct io_stat *src)
1391 dst->max_val = cpu_to_le64(src->max_val);
1392 dst->min_val = cpu_to_le64(src->min_val);
1393 dst->samples = cpu_to_le64(src->samples);
1396 * Encode to IEEE 754 for network transfer
1398 dst->mean.u.i = cpu_to_le64(fio_double_to_uint64(src->mean.u.f));
1399 dst->S.u.i = cpu_to_le64(fio_double_to_uint64(src->S.u.f));
1402 static void convert_gs(struct group_run_stats *dst, struct group_run_stats *src)
1406 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1407 dst->max_run[i] = cpu_to_le64(src->max_run[i]);
1408 dst->min_run[i] = cpu_to_le64(src->min_run[i]);
1409 dst->max_bw[i] = cpu_to_le64(src->max_bw[i]);
1410 dst->min_bw[i] = cpu_to_le64(src->min_bw[i]);
1411 dst->io_kb[i] = cpu_to_le64(src->io_kb[i]);
1412 dst->agg[i] = cpu_to_le64(src->agg[i]);
1415 dst->kb_base = cpu_to_le32(src->kb_base);
1416 dst->unit_base = cpu_to_le32(src->unit_base);
1417 dst->groupid = cpu_to_le32(src->groupid);
1418 dst->unified_rw_rep = cpu_to_le32(src->unified_rw_rep);
1422 * Send a CMD_TS, which packs struct thread_stat and group_run_stats
1423 * into a single payload.
1425 void fio_server_send_ts(struct thread_stat *ts, struct group_run_stats *rs)
1427 struct cmd_ts_pdu p;
1430 dprint(FD_NET, "server sending end stats\n");
1432 memset(&p, 0, sizeof(p));
1434 strncpy(p.ts.name, ts->name, FIO_JOBNAME_SIZE - 1);
1435 strncpy(p.ts.verror, ts->verror, FIO_VERROR_SIZE - 1);
1436 strncpy(p.ts.description, ts->description, FIO_JOBDESC_SIZE - 1);
1438 p.ts.error = cpu_to_le32(ts->error);
1439 p.ts.thread_number = cpu_to_le32(ts->thread_number);
1440 p.ts.groupid = cpu_to_le32(ts->groupid);
1441 p.ts.pid = cpu_to_le32(ts->pid);
1442 p.ts.members = cpu_to_le32(ts->members);
1443 p.ts.unified_rw_rep = cpu_to_le32(ts->unified_rw_rep);
1445 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1446 convert_io_stat(&p.ts.clat_stat[i], &ts->clat_stat[i]);
1447 convert_io_stat(&p.ts.slat_stat[i], &ts->slat_stat[i]);
1448 convert_io_stat(&p.ts.lat_stat[i], &ts->lat_stat[i]);
1449 convert_io_stat(&p.ts.bw_stat[i], &ts->bw_stat[i]);
1452 p.ts.usr_time = cpu_to_le64(ts->usr_time);
1453 p.ts.sys_time = cpu_to_le64(ts->sys_time);
1454 p.ts.ctx = cpu_to_le64(ts->ctx);
1455 p.ts.minf = cpu_to_le64(ts->minf);
1456 p.ts.majf = cpu_to_le64(ts->majf);
1457 p.ts.clat_percentiles = cpu_to_le64(ts->clat_percentiles);
1458 p.ts.percentile_precision = cpu_to_le64(ts->percentile_precision);
1460 for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) {
1461 fio_fp64_t *src = &ts->percentile_list[i];
1462 fio_fp64_t *dst = &p.ts.percentile_list[i];
1464 dst->u.i = cpu_to_le64(fio_double_to_uint64(src->u.f));
1467 for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
1468 p.ts.io_u_map[i] = cpu_to_le32(ts->io_u_map[i]);
1469 p.ts.io_u_submit[i] = cpu_to_le32(ts->io_u_submit[i]);
1470 p.ts.io_u_complete[i] = cpu_to_le32(ts->io_u_complete[i]);
1473 for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) {
1474 p.ts.io_u_lat_u[i] = cpu_to_le32(ts->io_u_lat_u[i]);
1475 p.ts.io_u_lat_m[i] = cpu_to_le32(ts->io_u_lat_m[i]);
1478 for (i = 0; i < DDIR_RWDIR_CNT; i++)
1479 for (j = 0; j < FIO_IO_U_PLAT_NR; j++)
1480 p.ts.io_u_plat[i][j] = cpu_to_le32(ts->io_u_plat[i][j]);
1482 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1483 p.ts.total_io_u[i] = cpu_to_le64(ts->total_io_u[i]);
1484 p.ts.short_io_u[i] = cpu_to_le64(ts->short_io_u[i]);
1485 p.ts.drop_io_u[i] = cpu_to_le64(ts->drop_io_u[i]);
1488 p.ts.total_submit = cpu_to_le64(ts->total_submit);
1489 p.ts.total_complete = cpu_to_le64(ts->total_complete);
1491 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1492 p.ts.io_bytes[i] = cpu_to_le64(ts->io_bytes[i]);
1493 p.ts.runtime[i] = cpu_to_le64(ts->runtime[i]);
1496 p.ts.total_run_time = cpu_to_le64(ts->total_run_time);
1497 p.ts.continue_on_error = cpu_to_le16(ts->continue_on_error);
1498 p.ts.total_err_count = cpu_to_le64(ts->total_err_count);
1499 p.ts.first_error = cpu_to_le32(ts->first_error);
1500 p.ts.kb_base = cpu_to_le32(ts->kb_base);
1501 p.ts.unit_base = cpu_to_le32(ts->unit_base);
1503 p.ts.latency_depth = cpu_to_le32(ts->latency_depth);
1504 p.ts.latency_target = cpu_to_le64(ts->latency_target);
1505 p.ts.latency_window = cpu_to_le64(ts->latency_window);
1506 p.ts.latency_percentile.u.i = cpu_to_le64(fio_double_to_uint64(ts->latency_percentile.u.f));
1508 p.ts.nr_block_infos = le64_to_cpu(ts->nr_block_infos);
1509 for (i = 0; i < p.ts.nr_block_infos; i++)
1510 p.ts.block_infos[i] = le32_to_cpu(ts->block_infos[i]);
1512 convert_gs(&p.rs, rs);
1514 fio_net_queue_cmd(FIO_NET_CMD_TS, &p, sizeof(p), NULL, SK_F_COPY);
1517 void fio_server_send_gs(struct group_run_stats *rs)
1519 struct group_run_stats gs;
1521 dprint(FD_NET, "server sending group run stats\n");
1523 convert_gs(&gs, rs);
1524 fio_net_queue_cmd(FIO_NET_CMD_GS, &gs, sizeof(gs), NULL, SK_F_COPY);
1527 void fio_server_send_job_options(struct flist_head *opt_list,
1528 unsigned int groupid)
1530 struct cmd_job_option pdu;
1531 struct flist_head *entry;
1533 if (flist_empty(opt_list))
1536 flist_for_each(entry, opt_list) {
1537 struct print_option *p;
1540 p = flist_entry(entry, struct print_option, list);
1541 memset(&pdu, 0, sizeof(pdu));
1543 if (groupid == -1U) {
1544 pdu.global = __cpu_to_le16(1);
1548 pdu.groupid = cpu_to_le32(groupid);
1550 len = strlen(p->name);
1551 if (len >= sizeof(pdu.name)) {
1552 len = sizeof(pdu.name) - 1;
1553 pdu.truncated = __cpu_to_le16(1);
1555 memcpy(pdu.name, p->name, len);
1557 len = strlen(p->value);
1558 if (len >= sizeof(pdu.value)) {
1559 len = sizeof(pdu.value) - 1;
1560 pdu.truncated = __cpu_to_le16(1);
1562 memcpy(pdu.value, p->value, len);
1564 fio_net_queue_cmd(FIO_NET_CMD_JOB_OPT, &pdu, sizeof(pdu), NULL, SK_F_COPY);
1568 static void convert_agg(struct disk_util_agg *dst, struct disk_util_agg *src)
1572 for (i = 0; i < 2; i++) {
1573 dst->ios[i] = cpu_to_le64(src->ios[i]);
1574 dst->merges[i] = cpu_to_le64(src->merges[i]);
1575 dst->sectors[i] = cpu_to_le64(src->sectors[i]);
1576 dst->ticks[i] = cpu_to_le64(src->ticks[i]);
1579 dst->io_ticks = cpu_to_le64(src->io_ticks);
1580 dst->time_in_queue = cpu_to_le64(src->time_in_queue);
1581 dst->slavecount = cpu_to_le32(src->slavecount);
1582 dst->max_util.u.i = cpu_to_le64(fio_double_to_uint64(src->max_util.u.f));
1585 static void convert_dus(struct disk_util_stat *dst, struct disk_util_stat *src)
1589 dst->name[FIO_DU_NAME_SZ - 1] = '\0';
1590 strncpy((char *) dst->name, (char *) src->name, FIO_DU_NAME_SZ - 1);
1592 for (i = 0; i < 2; i++) {
1593 dst->s.ios[i] = cpu_to_le64(src->s.ios[i]);
1594 dst->s.merges[i] = cpu_to_le64(src->s.merges[i]);
1595 dst->s.sectors[i] = cpu_to_le64(src->s.sectors[i]);
1596 dst->s.ticks[i] = cpu_to_le64(src->s.ticks[i]);
1599 dst->s.io_ticks = cpu_to_le64(src->s.io_ticks);
1600 dst->s.time_in_queue = cpu_to_le64(src->s.time_in_queue);
1601 dst->s.msec = cpu_to_le64(src->s.msec);
1604 void fio_server_send_du(void)
1606 struct disk_util *du;
1607 struct flist_head *entry;
1608 struct cmd_du_pdu pdu;
1610 dprint(FD_NET, "server: sending disk_util %d\n", !flist_empty(&disk_list));
1612 memset(&pdu, 0, sizeof(pdu));
1614 flist_for_each(entry, &disk_list) {
1615 du = flist_entry(entry, struct disk_util, list);
1617 convert_dus(&pdu.dus, &du->dus);
1618 convert_agg(&pdu.agg, &du->agg);
1620 fio_net_queue_cmd(FIO_NET_CMD_DU, &pdu, sizeof(pdu), NULL, SK_F_COPY);
1624 static int fio_append_iolog_gz(struct sk_entry *first, struct io_log *log)
1628 struct sk_entry *entry;
1633 * Dirty - since the log is potentially huge, compress it into
1634 * FIO_SERVER_MAX_FRAGMENT_PDU chunks and let the receiving
1635 * side defragment it.
1637 out_pdu = malloc(FIO_SERVER_MAX_FRAGMENT_PDU);
1639 stream.zalloc = Z_NULL;
1640 stream.zfree = Z_NULL;
1641 stream.opaque = Z_NULL;
1643 if (deflateInit(&stream, Z_DEFAULT_COMPRESSION) != Z_OK) {
1648 stream.next_in = (void *) log->log;
1649 stream.avail_in = log->nr_samples * log_entry_sz(log);
1652 unsigned int this_len;
1654 stream.avail_out = FIO_SERVER_MAX_FRAGMENT_PDU;
1655 stream.next_out = out_pdu;
1656 ret = deflate(&stream, Z_FINISH);
1657 /* may be Z_OK, or Z_STREAM_END */
1661 this_len = FIO_SERVER_MAX_FRAGMENT_PDU - stream.avail_out;
1663 entry = fio_net_prep_cmd(FIO_NET_CMD_IOLOG, out_pdu, this_len,
1664 NULL, SK_F_VEC | SK_F_INLINE | SK_F_FREE);
1666 flist_add_tail(&entry->list, &first->next);
1667 } while (stream.avail_in);
1670 deflateEnd(&stream);
1677 static int fio_append_gz_chunks(struct sk_entry *first, struct io_log *log)
1679 struct sk_entry *entry;
1680 struct flist_head *node;
1682 pthread_mutex_lock(&log->chunk_lock);
1683 flist_for_each(node, &log->chunk_list) {
1684 struct iolog_compress *c;
1686 c = flist_entry(node, struct iolog_compress, list);
1687 entry = fio_net_prep_cmd(FIO_NET_CMD_IOLOG, c->buf, c->len,
1688 NULL, SK_F_VEC | SK_F_INLINE);
1689 flist_add_tail(&entry->list, &first->next);
1691 pthread_mutex_unlock(&log->chunk_lock);
1696 static int fio_append_text_log(struct sk_entry *first, struct io_log *log)
1698 struct sk_entry *entry;
1699 size_t size = log->nr_samples * log_entry_sz(log);
1701 entry = fio_net_prep_cmd(FIO_NET_CMD_IOLOG, log->log, size,
1702 NULL, SK_F_VEC | SK_F_INLINE);
1703 flist_add_tail(&entry->list, &first->next);
1707 int fio_send_iolog(struct thread_data *td, struct io_log *log, const char *name)
1709 struct cmd_iolog_pdu pdu;
1710 struct sk_entry *first;
1713 pdu.nr_samples = cpu_to_le64(log->nr_samples);
1714 pdu.thread_number = cpu_to_le32(td->thread_number);
1715 pdu.log_type = cpu_to_le32(log->log_type);
1717 if (!flist_empty(&log->chunk_list))
1718 pdu.compressed = __cpu_to_le32(STORE_COMPRESSED);
1720 pdu.compressed = __cpu_to_le32(XMIT_COMPRESSED);
1724 strncpy((char *) pdu.name, name, FIO_NET_NAME_MAX);
1725 pdu.name[FIO_NET_NAME_MAX - 1] = '\0';
1728 * We can't do this for a pre-compressed log, but for that case,
1729 * log->nr_samples is zero anyway.
1731 for (i = 0; i < log->nr_samples; i++) {
1732 struct io_sample *s = get_sample(log, i);
1734 s->time = cpu_to_le64(s->time);
1735 s->val = cpu_to_le64(s->val);
1736 s->__ddir = cpu_to_le32(s->__ddir);
1737 s->bs = cpu_to_le32(s->bs);
1739 if (log->log_offset) {
1740 struct io_sample_offset *so = (void *) s;
1742 so->offset = cpu_to_le64(so->offset);
1747 * Assemble header entry first
1749 first = fio_net_prep_cmd(FIO_NET_CMD_IOLOG, &pdu, sizeof(pdu), NULL, SK_F_VEC | SK_F_INLINE | SK_F_COPY);
1752 * Now append actual log entries. If log compression was enabled on
1753 * the job, just send out the compressed chunks directly. If we
1754 * have a plain log, compress if we can, then send. Otherwise, send
1755 * the plain text output.
1757 if (!flist_empty(&log->chunk_list))
1758 ret = fio_append_gz_chunks(first, log);
1760 ret = fio_append_iolog_gz(first, log);
1762 ret = fio_append_text_log(first, log);
1764 fio_net_queue_entry(first);
1768 void fio_server_send_add_job(struct thread_data *td)
1770 struct cmd_add_job_pdu pdu;
1772 memset(&pdu, 0, sizeof(pdu));
1773 pdu.thread_number = cpu_to_le32(td->thread_number);
1774 pdu.groupid = cpu_to_le32(td->groupid);
1775 convert_thread_options_to_net(&pdu.top, &td->o);
1777 fio_net_queue_cmd(FIO_NET_CMD_ADD_JOB, &pdu, sizeof(pdu), NULL,
1781 void fio_server_send_start(struct thread_data *td)
1783 struct sk_out *sk_out = pthread_getspecific(sk_out_key);
1785 assert(sk_out->sk != -1);
1787 fio_net_queue_cmd(FIO_NET_CMD_SERVER_START, NULL, 0, 0, SK_F_SIMPLE);
1790 int fio_server_get_verify_state(const char *name, int threadnumber,
1791 void **datap, int *version)
1793 struct thread_io_list *s;
1794 struct cmd_sendfile out;
1795 struct cmd_reply *rep;
1799 dprint(FD_NET, "server: request verify state\n");
1801 rep = smalloc(sizeof(*rep));
1803 log_err("fio: smalloc pool too small\n");
1807 __fio_mutex_init(&rep->lock, FIO_MUTEX_LOCKED);
1811 verify_state_gen_name((char *) out.path, sizeof(out.path), name, me,
1813 tag = (uint64_t) (uintptr_t) rep;
1814 fio_net_queue_cmd(FIO_NET_CMD_SENDFILE, &out, sizeof(out), &tag,
1818 * Wait for the backend to receive the reply
1820 if (fio_mutex_down_timeout(&rep->lock, 10000)) {
1821 log_err("fio: timed out waiting for reply\n");
1826 log_err("fio: failure on receiving state file: %s\n",
1827 strerror(rep->error));
1831 fio_net_queue_quit();
1836 * The format is verify_state_hdr, then thread_io_list. Verify
1837 * the header, and the thread_io_list checksum
1839 s = rep->data + sizeof(struct verify_state_hdr);
1840 if (verify_state_hdr(rep->data, s, version))
1844 * Don't need the header from now, copy just the thread_io_list
1846 rep->size -= sizeof(struct verify_state_hdr);
1847 data = malloc(rep->size);
1848 memcpy(data, s, rep->size);
1852 __fio_mutex_remove(&rep->lock);
1857 static int fio_init_server_ip(void)
1859 struct sockaddr *addr;
1866 sk = socket(AF_INET6, SOCK_STREAM, 0);
1868 sk = socket(AF_INET, SOCK_STREAM, 0);
1871 log_err("fio: socket: %s\n", strerror(errno));
1876 if (setsockopt(sk, SOL_SOCKET, SO_REUSEADDR, (void *)&opt, sizeof(opt)) < 0) {
1877 log_err("fio: setsockopt(REUSEADDR): %s\n", strerror(errno));
1882 if (setsockopt(sk, SOL_SOCKET, SO_REUSEPORT, &opt, sizeof(opt)) < 0) {
1883 log_err("fio: setsockopt(REUSEPORT): %s\n", strerror(errno));
1890 const void *src = &saddr_in6.sin6_addr;
1892 addr = (struct sockaddr *) &saddr_in6;
1893 socklen = sizeof(saddr_in6);
1894 saddr_in6.sin6_family = AF_INET6;
1895 str = inet_ntop(AF_INET6, src, buf, sizeof(buf));
1897 const void *src = &saddr_in.sin_addr;
1899 addr = (struct sockaddr *) &saddr_in;
1900 socklen = sizeof(saddr_in);
1901 saddr_in.sin_family = AF_INET;
1902 str = inet_ntop(AF_INET, src, buf, sizeof(buf));
1905 if (bind(sk, addr, socklen) < 0) {
1906 log_err("fio: bind: %s\n", strerror(errno));
1907 log_info("fio: failed with IPv%c %s\n", use_ipv6 ? '6' : '4', str);
1915 static int fio_init_server_sock(void)
1917 struct sockaddr_un addr;
1922 sk = socket(AF_UNIX, SOCK_STREAM, 0);
1924 log_err("fio: socket: %s\n", strerror(errno));
1930 memset(&addr, 0, sizeof(addr));
1931 addr.sun_family = AF_UNIX;
1932 strncpy(addr.sun_path, bind_sock, sizeof(addr.sun_path) - 1);
1934 len = sizeof(addr.sun_family) + strlen(bind_sock) + 1;
1936 if (bind(sk, (struct sockaddr *) &addr, len) < 0) {
1937 log_err("fio: bind: %s\n", strerror(errno));
1946 static int fio_init_server_connection(void)
1951 dprint(FD_NET, "starting server\n");
1954 sk = fio_init_server_ip();
1956 sk = fio_init_server_sock();
1961 memset(bind_str, 0, sizeof(bind_str));
1970 src = &saddr_in6.sin6_addr;
1973 src = &saddr_in.sin_addr;
1976 p = (char *) inet_ntop(af, src, bind_str, sizeof(bind_str));
1978 sprintf(port, ",%u", fio_net_port);
1982 strncpy(bind_str, port, sizeof(bind_str) - 1);
1984 strncpy(bind_str, bind_sock, sizeof(bind_str) - 1);
1986 log_info("fio: server listening on %s\n", bind_str);
1988 if (listen(sk, 4) < 0) {
1989 log_err("fio: listen: %s\n", strerror(errno));
1997 int fio_server_parse_host(const char *host, int ipv6, struct in_addr *inp,
1998 struct in6_addr *inp6)
2004 ret = inet_pton(AF_INET6, host, inp6);
2006 ret = inet_pton(AF_INET, host, inp);
2009 struct addrinfo hints, *res;
2011 memset(&hints, 0, sizeof(hints));
2012 hints.ai_family = ipv6 ? AF_INET6 : AF_INET;
2013 hints.ai_socktype = SOCK_STREAM;
2015 ret = getaddrinfo(host, NULL, &hints, &res);
2017 log_err("fio: failed to resolve <%s> (%s)\n", host,
2023 memcpy(inp6, &((struct sockaddr_in6 *) res->ai_addr)->sin6_addr, sizeof(*inp6));
2025 memcpy(inp, &((struct sockaddr_in *) res->ai_addr)->sin_addr, sizeof(*inp));
2035 * Parse a host/ip/port string. Reads from 'str'.
2040 * *ptr is the host, *port is the port, inp is the destination.
2042 * *ptr is the host, *port is the port, inp6 is the dest, and *ipv6 is 1.
2043 * For local domain sockets:
2044 * *ptr is the filename, *is_sock is 1.
2046 int fio_server_parse_string(const char *str, char **ptr, int *is_sock,
2047 int *port, struct in_addr *inp,
2048 struct in6_addr *inp6, int *ipv6)
2050 const char *host = str;
2056 *port = fio_net_port;
2059 if (!strncmp(str, "sock:", 5)) {
2060 *ptr = strdup(str + 5);
2067 * Is it ip:<ip or host>:port
2069 if (!strncmp(host, "ip:", 3))
2071 else if (!strncmp(host, "ip4:", 4))
2073 else if (!strncmp(host, "ip6:", 4)) {
2076 } else if (host[0] == ':') {
2077 /* String is :port */
2080 if (!lport || lport > 65535) {
2081 log_err("fio: bad server port %u\n", lport);
2084 /* no hostname given, we are done */
2090 * If no port seen yet, check if there's a last ',' at the end
2093 portp = strchr(host, ',');
2097 lport = atoi(portp);
2098 if (!lport || lport > 65535) {
2099 log_err("fio: bad server port %u\n", lport);
2111 *ptr = strdup(host);
2113 if (fio_server_parse_host(*ptr, *ipv6, inp, inp6)) {
2120 *port = fio_net_port;
2126 * Server arg should be one of:
2128 * sock:/path/to/socket
2132 * Where sock uses unix domain sockets, and ip binds the server to
2133 * a specific interface. If no arguments are given to the server, it
2134 * uses IP and binds to 0.0.0.0.
2137 static int fio_handle_server_arg(void)
2139 int port = fio_net_port;
2140 int is_sock, ret = 0;
2142 saddr_in.sin_addr.s_addr = htonl(INADDR_ANY);
2144 if (!fio_server_arg)
2147 ret = fio_server_parse_string(fio_server_arg, &bind_sock, &is_sock,
2148 &port, &saddr_in.sin_addr,
2149 &saddr_in6.sin6_addr, &use_ipv6);
2151 if (!is_sock && bind_sock) {
2157 fio_net_port = port;
2158 saddr_in.sin_port = htons(port);
2159 saddr_in6.sin6_port = htons(port);
2163 static void sig_int(int sig)
2169 static void set_sig_handlers(void)
2171 struct sigaction act;
2173 memset(&act, 0, sizeof(act));
2174 act.sa_handler = sig_int;
2175 act.sa_flags = SA_RESTART;
2176 sigaction(SIGINT, &act, NULL);
2179 static int fio_server(void)
2183 if (pthread_key_create(&sk_out_key, NULL)) {
2184 log_err("fio: can't create sk_out backend key\n");
2188 pthread_setspecific(sk_out_key, NULL);
2190 dprint(FD_NET, "starting server\n");
2192 if (fio_handle_server_arg())
2195 sk = fio_init_server_connection();
2201 ret = accept_loop(sk);
2205 if (fio_server_arg) {
2206 free(fio_server_arg);
2207 fio_server_arg = NULL;
2215 void fio_server_got_signal(int signal)
2217 struct sk_out *sk_out = pthread_getspecific(sk_out_key);
2221 if (signal == SIGPIPE)
2224 log_info("\nfio: terminating on signal %d\n", signal);
2229 static int check_existing_pidfile(const char *pidfile)
2236 if (stat(pidfile, &sb))
2239 f = fopen(pidfile, "r");
2243 if (fread(buf, sb.st_size, 1, f) <= 0) {
2250 if (kill(pid, SIGCONT) < 0)
2251 return errno != ESRCH;
2256 static int write_pid(pid_t pid, const char *pidfile)
2260 fpid = fopen(pidfile, "w");
2262 log_err("fio: failed opening pid file %s\n", pidfile);
2266 fprintf(fpid, "%u\n", (unsigned int) pid);
2272 * If pidfile is specified, background us.
2274 int fio_start_server(char *pidfile)
2281 WSAStartup(MAKEWORD(2, 2), &wsd);
2285 return fio_server();
2287 if (check_existing_pidfile(pidfile)) {
2288 log_err("fio: pidfile %s exists and server appears alive\n",
2296 log_err("fio: failed server fork: %s", strerror(errno));
2300 ret = write_pid(pid, pidfile);
2306 openlog("fio", LOG_NDELAY|LOG_NOWAIT|LOG_PID, LOG_USER);
2308 close(STDIN_FILENO);
2309 close(STDOUT_FILENO);
2310 close(STDERR_FILENO);
2322 void fio_server_set_arg(const char *arg)
2324 fio_server_arg = strdup(arg);