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, off_t size,
524 uint64_t *tagptr, int flags)
526 struct sk_entry *entry;
528 entry = smalloc(sizeof(*entry));
529 INIT_FLIST_HEAD(&entry->next);
530 entry->opcode = opcode;
531 if (flags & SK_F_COPY) {
532 entry->buf = smalloc(size);
533 memcpy(entry->buf, buf, size);
538 entry->tagptr = tagptr;
539 entry->flags = flags;
543 static int handle_sk_entry(struct sk_out *sk_out, struct sk_entry *entry);
545 static void fio_net_queue_entry(struct sk_entry *entry)
547 struct sk_out *sk_out = pthread_getspecific(sk_out_key);
549 if (entry->flags & SK_F_INLINE)
550 handle_sk_entry(sk_out, entry);
553 flist_add_tail(&entry->list, &sk_out->list);
556 fio_mutex_up(&sk_out->wait);
560 static int fio_net_queue_cmd(uint16_t opcode, void *buf, off_t size,
561 uint64_t *tagptr, int flags)
563 struct sk_entry *entry;
565 entry = fio_net_prep_cmd(opcode, buf, size, tagptr, flags);
566 fio_net_queue_entry(entry);
570 static int fio_net_send_simple_stack_cmd(int sk, uint16_t opcode, uint64_t tag)
572 struct fio_net_cmd cmd;
574 fio_init_net_cmd(&cmd, opcode, NULL, 0, tag);
575 fio_net_cmd_crc(&cmd);
577 return fio_send_data(sk, &cmd, sizeof(cmd));
581 * If 'list' is non-NULL, then allocate and store the sent command for
582 * later verification.
584 int fio_net_send_simple_cmd(int sk, uint16_t opcode, uint64_t tag,
585 struct flist_head *list)
590 tag = alloc_reply(tag, opcode);
592 ret = fio_net_send_simple_stack_cmd(sk, opcode, tag);
601 add_reply(tag, list);
606 static int fio_net_queue_quit(void)
608 dprint(FD_NET, "server: sending quit\n");
610 return fio_net_queue_cmd(FIO_NET_CMD_QUIT, NULL, 0, 0, SK_F_SIMPLE);
613 int fio_net_send_quit(int sk)
615 dprint(FD_NET, "server: sending quit\n");
617 return fio_net_send_simple_cmd(sk, FIO_NET_CMD_QUIT, 0, NULL);
620 static int fio_net_send_ack(struct fio_net_cmd *cmd, int error, int signal)
622 struct cmd_end_pdu epdu;
628 epdu.error = __cpu_to_le32(error);
629 epdu.signal = __cpu_to_le32(signal);
630 return fio_net_queue_cmd(FIO_NET_CMD_STOP, &epdu, sizeof(epdu), &tag, SK_F_COPY);
633 static int fio_net_queue_stop(int error, int signal)
635 dprint(FD_NET, "server: sending stop (%d, %d)\n", error, signal);
636 return fio_net_send_ack(NULL, error, signal);
639 static void fio_server_add_fork_item(pid_t pid, struct flist_head *list)
641 struct fio_fork_item *ffi;
643 ffi = malloc(sizeof(*ffi));
648 flist_add_tail(&ffi->list, list);
651 static void fio_server_add_conn_pid(struct flist_head *conn_list, pid_t pid)
653 dprint(FD_NET, "server: forked off connection job (pid=%u)\n", (int) pid);
654 fio_server_add_fork_item(pid, conn_list);
657 static void fio_server_add_job_pid(struct flist_head *job_list, pid_t pid)
659 dprint(FD_NET, "server: forked off job job (pid=%u)\n", (int) pid);
660 fio_server_add_fork_item(pid, job_list);
663 static void fio_server_check_fork_item(struct fio_fork_item *ffi)
667 ret = waitpid(ffi->pid, &status, WNOHANG);
669 if (errno == ECHILD) {
670 log_err("fio: connection pid %u disappeared\n", (int) ffi->pid);
673 log_err("fio: waitpid: %s\n", strerror(errno));
674 } else if (ret == ffi->pid) {
675 if (WIFSIGNALED(status)) {
676 ffi->signal = WTERMSIG(status);
679 if (WIFEXITED(status)) {
680 if (WEXITSTATUS(status))
681 ffi->exitval = WEXITSTATUS(status);
687 static void fio_server_fork_item_done(struct fio_fork_item *ffi, bool stop)
689 dprint(FD_NET, "pid %u exited, sig=%u, exitval=%d\n", (int) ffi->pid, ffi->signal, ffi->exitval);
692 * Fold STOP and QUIT...
695 fio_net_queue_stop(ffi->exitval, ffi->signal);
696 fio_net_queue_quit();
699 flist_del(&ffi->list);
703 static void fio_server_check_fork_items(struct flist_head *list, bool stop)
705 struct flist_head *entry, *tmp;
706 struct fio_fork_item *ffi;
708 flist_for_each_safe(entry, tmp, list) {
709 ffi = flist_entry(entry, struct fio_fork_item, list);
711 fio_server_check_fork_item(ffi);
714 fio_server_fork_item_done(ffi, stop);
718 static void fio_server_check_jobs(struct flist_head *job_list)
720 fio_server_check_fork_items(job_list, true);
723 static void fio_server_check_conns(struct flist_head *conn_list)
725 fio_server_check_fork_items(conn_list, false);
728 static int handle_load_file_cmd(struct fio_net_cmd *cmd)
730 struct cmd_load_file_pdu *pdu = (struct cmd_load_file_pdu *) cmd->payload;
731 void *file_name = pdu->file;
732 struct cmd_start_pdu spdu;
734 dprint(FD_NET, "server: loading local file %s\n", (char *) file_name);
736 pdu->name_len = le16_to_cpu(pdu->name_len);
737 pdu->client_type = le16_to_cpu(pdu->client_type);
739 if (parse_jobs_ini(file_name, 0, 0, pdu->client_type)) {
740 fio_net_queue_quit();
744 spdu.jobs = cpu_to_le32(thread_number);
745 spdu.stat_outputs = cpu_to_le32(stat_number);
746 fio_net_queue_cmd(FIO_NET_CMD_START, &spdu, sizeof(spdu), NULL, SK_F_COPY);
750 static int handle_run_cmd(struct sk_out *sk_out, struct flist_head *job_list,
751 struct fio_net_cmd *cmd)
761 fio_server_add_job_pid(job_list, pid);
765 ret = fio_backend(sk_out);
770 static int handle_job_cmd(struct fio_net_cmd *cmd)
772 struct cmd_job_pdu *pdu = (struct cmd_job_pdu *) cmd->payload;
773 void *buf = pdu->buf;
774 struct cmd_start_pdu spdu;
776 pdu->buf_len = le32_to_cpu(pdu->buf_len);
777 pdu->client_type = le32_to_cpu(pdu->client_type);
779 if (parse_jobs_ini(buf, 1, 0, pdu->client_type)) {
780 fio_net_queue_quit();
784 spdu.jobs = cpu_to_le32(thread_number);
785 spdu.stat_outputs = cpu_to_le32(stat_number);
787 fio_net_queue_cmd(FIO_NET_CMD_START, &spdu, sizeof(spdu), NULL, SK_F_COPY);
791 static int handle_jobline_cmd(struct fio_net_cmd *cmd)
793 void *pdu = cmd->payload;
794 struct cmd_single_line_pdu *cslp;
795 struct cmd_line_pdu *clp;
796 unsigned long offset;
797 struct cmd_start_pdu spdu;
802 clp->lines = le16_to_cpu(clp->lines);
803 clp->client_type = le16_to_cpu(clp->client_type);
804 argv = malloc(clp->lines * sizeof(char *));
805 offset = sizeof(*clp);
807 dprint(FD_NET, "server: %d command line args\n", clp->lines);
809 for (i = 0; i < clp->lines; i++) {
811 argv[i] = (char *) cslp->text;
813 offset += sizeof(*cslp) + le16_to_cpu(cslp->len);
814 dprint(FD_NET, "server: %d: %s\n", i, argv[i]);
817 if (parse_cmd_line(clp->lines, argv, clp->client_type)) {
818 fio_net_queue_quit();
825 spdu.jobs = cpu_to_le32(thread_number);
826 spdu.stat_outputs = cpu_to_le32(stat_number);
828 fio_net_queue_cmd(FIO_NET_CMD_START, &spdu, sizeof(spdu), NULL, SK_F_COPY);
832 static int handle_probe_cmd(struct fio_net_cmd *cmd)
834 struct cmd_client_probe_pdu *pdu = (struct cmd_client_probe_pdu *) cmd->payload;
835 struct cmd_probe_reply_pdu probe;
836 uint64_t tag = cmd->tag;
838 dprint(FD_NET, "server: sending probe reply\n");
840 strcpy(me, (char *) pdu->server);
842 memset(&probe, 0, sizeof(probe));
843 gethostname((char *) probe.hostname, sizeof(probe.hostname));
844 #ifdef CONFIG_BIG_ENDIAN
847 strncpy((char *) probe.fio_version, fio_version_string, sizeof(probe.fio_version));
850 probe.arch = FIO_ARCH;
851 probe.bpp = sizeof(void *);
852 probe.cpus = __cpu_to_le32(cpus_online());
855 * If the client supports compression and we do too, then enable it
857 if (has_zlib && le64_to_cpu(pdu->flags) & FIO_PROBE_FLAG_ZLIB) {
858 probe.flags = __cpu_to_le64(FIO_PROBE_FLAG_ZLIB);
865 return fio_net_queue_cmd(FIO_NET_CMD_PROBE, &probe, sizeof(probe), &tag, SK_F_COPY);
868 static int handle_send_eta_cmd(struct fio_net_cmd *cmd)
871 uint64_t tag = cmd->tag;
875 dprint(FD_NET, "server sending status\n");
878 * Fake ETA return if we don't have a local one, otherwise the client
879 * will end up timing out waiting for a response to the ETA request
881 je = get_jobs_eta(true, &size);
884 je = calloc(1, size);
886 je->nr_running = cpu_to_le32(je->nr_running);
887 je->nr_ramp = cpu_to_le32(je->nr_ramp);
888 je->nr_pending = cpu_to_le32(je->nr_pending);
889 je->nr_setting_up = cpu_to_le32(je->nr_setting_up);
890 je->files_open = cpu_to_le32(je->files_open);
892 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
893 je->m_rate[i] = cpu_to_le32(je->m_rate[i]);
894 je->t_rate[i] = cpu_to_le32(je->t_rate[i]);
895 je->m_iops[i] = cpu_to_le32(je->m_iops[i]);
896 je->t_iops[i] = cpu_to_le32(je->t_iops[i]);
897 je->rate[i] = cpu_to_le32(je->rate[i]);
898 je->iops[i] = cpu_to_le32(je->iops[i]);
901 je->elapsed_sec = cpu_to_le64(je->elapsed_sec);
902 je->eta_sec = cpu_to_le64(je->eta_sec);
903 je->nr_threads = cpu_to_le32(je->nr_threads);
904 je->is_pow2 = cpu_to_le32(je->is_pow2);
905 je->unit_base = cpu_to_le32(je->unit_base);
908 fio_net_queue_cmd(FIO_NET_CMD_ETA, je, size, &tag, SK_F_FREE);
912 static int send_update_job_reply(uint64_t __tag, int error)
914 uint64_t tag = __tag;
917 pdu_error = __cpu_to_le32(error);
918 return fio_net_queue_cmd(FIO_NET_CMD_UPDATE_JOB, &pdu_error, sizeof(pdu_error), &tag, SK_F_COPY);
921 static int handle_update_job_cmd(struct fio_net_cmd *cmd)
923 struct cmd_add_job_pdu *pdu = (struct cmd_add_job_pdu *) cmd->payload;
924 struct thread_data *td;
927 tnumber = le32_to_cpu(pdu->thread_number);
929 dprint(FD_NET, "server: updating options for job %u\n", tnumber);
931 if (!tnumber || tnumber > thread_number) {
932 send_update_job_reply(cmd->tag, ENODEV);
936 td = &threads[tnumber - 1];
937 convert_thread_options_to_cpu(&td->o, &pdu->top);
938 send_update_job_reply(cmd->tag, 0);
942 static int handle_trigger_cmd(struct fio_net_cmd *cmd)
944 struct cmd_vtrigger_pdu *pdu = (struct cmd_vtrigger_pdu *) cmd->payload;
945 char *buf = (char *) pdu->cmd;
946 struct all_io_list *rep;
949 pdu->len = le16_to_cpu(pdu->len);
950 buf[pdu->len] = '\0';
952 rep = get_all_io_list(IO_LIST_ALL, &sz);
954 struct all_io_list state;
956 state.threads = cpu_to_le64((uint64_t) 0);
957 fio_net_queue_cmd(FIO_NET_CMD_VTRIGGER, &state, sizeof(state), NULL, SK_F_COPY);
959 fio_net_queue_cmd(FIO_NET_CMD_VTRIGGER, rep, sz, NULL, SK_F_FREE);
965 static int handle_command(struct sk_out *sk_out, struct flist_head *job_list,
966 struct fio_net_cmd *cmd)
970 dprint(FD_NET, "server: got op [%s], pdu=%u, tag=%llx\n",
971 fio_server_op(cmd->opcode), cmd->pdu_len,
972 (unsigned long long) cmd->tag);
974 switch (cmd->opcode) {
975 case FIO_NET_CMD_QUIT:
976 fio_terminate_threads(TERMINATE_ALL);
979 case FIO_NET_CMD_EXIT:
982 case FIO_NET_CMD_LOAD_FILE:
983 ret = handle_load_file_cmd(cmd);
985 case FIO_NET_CMD_JOB:
986 ret = handle_job_cmd(cmd);
988 case FIO_NET_CMD_JOBLINE:
989 ret = handle_jobline_cmd(cmd);
991 case FIO_NET_CMD_PROBE:
992 ret = handle_probe_cmd(cmd);
994 case FIO_NET_CMD_SEND_ETA:
995 ret = handle_send_eta_cmd(cmd);
997 case FIO_NET_CMD_RUN:
998 ret = handle_run_cmd(sk_out, job_list, cmd);
1000 case FIO_NET_CMD_UPDATE_JOB:
1001 ret = handle_update_job_cmd(cmd);
1003 case FIO_NET_CMD_VTRIGGER:
1004 ret = handle_trigger_cmd(cmd);
1006 case FIO_NET_CMD_SENDFILE: {
1007 struct cmd_sendfile_reply *in;
1008 struct cmd_reply *rep;
1010 rep = (struct cmd_reply *) (uintptr_t) cmd->tag;
1012 in = (struct cmd_sendfile_reply *) cmd->payload;
1013 in->size = le32_to_cpu(in->size);
1014 in->error = le32_to_cpu(in->error);
1017 rep->error = in->error;
1020 rep->data = smalloc(in->size);
1023 rep->error = ENOMEM;
1025 rep->size = in->size;
1026 memcpy(rep->data, in->data, in->size);
1029 fio_mutex_up(&rep->lock);
1033 log_err("fio: unknown opcode: %s\n", fio_server_op(cmd->opcode));
1041 * Send a command with a separate PDU, not inlined in the command
1043 static int fio_send_cmd_ext_pdu(int sk, uint16_t opcode, const void *buf,
1044 off_t size, uint64_t tag, uint32_t flags)
1046 struct fio_net_cmd cmd;
1047 struct iovec iov[2];
1049 iov[0].iov_base = (void *) &cmd;
1050 iov[0].iov_len = sizeof(cmd);
1051 iov[1].iov_base = (void *) buf;
1052 iov[1].iov_len = size;
1054 __fio_init_net_cmd(&cmd, opcode, size, tag);
1055 cmd.flags = __cpu_to_le32(flags);
1056 fio_net_cmd_crc_pdu(&cmd, buf);
1058 return fio_sendv_data(sk, iov, 2);
1061 static void finish_entry(struct sk_entry *entry)
1063 if (entry->flags & SK_F_FREE)
1065 else if (entry->flags & SK_F_COPY)
1071 static void entry_set_flags_tag(struct sk_entry *entry, struct flist_head *list,
1072 unsigned int *flags, uint64_t *tag)
1074 if (!flist_empty(list))
1075 *flags = FIO_NET_CMD_F_MORE;
1080 *tag = *entry->tagptr;
1085 static int send_vec_entry(struct sk_out *sk_out, struct sk_entry *first)
1091 entry_set_flags_tag(first, &first->next, &flags, &tag);
1093 ret = fio_send_cmd_ext_pdu(sk_out->sk, first->opcode, first->buf, first->size, tag, flags);
1095 while (!flist_empty(&first->next)) {
1096 struct sk_entry *next;
1098 next = flist_first_entry(&first->next, struct sk_entry, list);
1099 flist_del_init(&next->list);
1101 entry_set_flags_tag(next, &first->next, &flags, &tag);
1103 ret += fio_send_cmd_ext_pdu(sk_out->sk, next->opcode, next->buf, next->size, 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) {
1122 tag = *entry->tagptr;
1124 ret = fio_net_send_simple_cmd(sk_out->sk, entry->opcode, tag, NULL);
1126 ret = fio_net_send_cmd(sk_out->sk, entry->opcode, entry->buf, entry->size, entry->tagptr, NULL);
1128 fio_mutex_up(&sk_out->xmit);
1131 log_err("fio: failed handling cmd %s\n", fio_server_op(entry->opcode));
1133 finish_entry(entry);
1137 static int handle_xmits(struct sk_out *sk_out)
1139 struct sk_entry *entry;
1144 if (flist_empty(&sk_out->list)) {
1149 flist_splice_init(&sk_out->list, &list);
1152 while (!flist_empty(&list)) {
1153 entry = flist_entry(list.next, struct sk_entry, list);
1154 flist_del(&entry->list);
1155 ret += handle_sk_entry(sk_out, entry);
1161 static int handle_connection(struct sk_out *sk_out)
1163 struct fio_net_cmd *cmd = NULL;
1164 FLIST_HEAD(job_list);
1170 while (!exit_backend) {
1171 struct pollfd pfd = {
1180 if (!flist_empty(&job_list))
1183 handle_xmits(sk_out);
1185 ret = poll(&pfd, 1, 0);
1189 log_err("fio: poll: %s\n", strerror(errno));
1192 fio_server_check_jobs(&job_list);
1193 fio_mutex_down_timeout(&sk_out->wait, timeout);
1197 if (pfd.revents & POLLIN)
1199 if (pfd.revents & (POLLERR|POLLHUP)) {
1203 } while (!exit_backend);
1205 fio_server_check_jobs(&job_list);
1210 cmd = fio_net_recv_cmd(sk_out->sk);
1216 ret = handle_command(sk_out, &job_list, cmd);
1227 handle_xmits(sk_out);
1231 __sk_out_drop(sk_out);
1235 /* get the address on this host bound by the input socket,
1236 * whether it is ipv6 or ipv4 */
1238 static int get_my_addr_str(int sk)
1240 struct sockaddr_in6 myaddr6 = { 0, };
1241 struct sockaddr_in myaddr4 = { 0, };
1242 struct sockaddr *sockaddr_p;
1248 len = sizeof(myaddr6);
1249 sockaddr_p = (struct sockaddr * )&myaddr6;
1250 net_addr = (char * )&myaddr6.sin6_addr;
1252 len = sizeof(myaddr4);
1253 sockaddr_p = (struct sockaddr * )&myaddr4;
1254 net_addr = (char * )&myaddr4.sin_addr;
1257 ret = getsockname(sk, sockaddr_p, &len);
1259 log_err("fio: getsockaddr: %s\n", strerror(errno));
1263 if (!inet_ntop(use_ipv6?AF_INET6:AF_INET, net_addr, client_sockaddr_str, INET6_ADDRSTRLEN - 1)) {
1264 log_err("inet_ntop: failed to convert addr to string\n");
1268 dprint(FD_NET, "fio server bound to addr %s\n", client_sockaddr_str);
1272 static int accept_loop(int listen_sk)
1274 struct sockaddr_in addr;
1275 struct sockaddr_in6 addr6;
1276 socklen_t len = use_ipv6 ? sizeof(addr6) : sizeof(addr);
1278 int ret = 0, sk, exitval = 0;
1279 FLIST_HEAD(conn_list);
1281 dprint(FD_NET, "server enter accept loop\n");
1283 fio_set_fd_nonblocking(listen_sk, "server");
1285 while (!exit_backend) {
1286 struct sk_out *sk_out;
1292 pfd.events = POLLIN;
1296 if (!flist_empty(&conn_list))
1299 ret = poll(&pfd, 1, timeout);
1303 log_err("fio: poll: %s\n", strerror(errno));
1306 fio_server_check_conns(&conn_list);
1310 if (pfd.revents & POLLIN)
1312 } while (!exit_backend);
1314 fio_server_check_conns(&conn_list);
1316 if (exit_backend || ret < 0)
1320 sk = accept(listen_sk, (struct sockaddr *) &addr6, &len);
1322 sk = accept(listen_sk, (struct sockaddr *) &addr, &len);
1325 log_err("fio: accept: %s\n", strerror(errno));
1330 from = inet_ntop(AF_INET6, (struct sockaddr *) &addr6.sin6_addr, buf, sizeof(buf));
1332 from = inet_ntop(AF_INET, (struct sockaddr *) &addr.sin_addr, buf, sizeof(buf));
1334 dprint(FD_NET, "server: connect from %s\n", from);
1336 sk_out = smalloc(sizeof(*sk_out));
1338 INIT_FLIST_HEAD(&sk_out->list);
1339 __fio_mutex_init(&sk_out->lock, FIO_MUTEX_UNLOCKED);
1340 __fio_mutex_init(&sk_out->wait, FIO_MUTEX_LOCKED);
1341 __fio_mutex_init(&sk_out->xmit, FIO_MUTEX_UNLOCKED);
1346 fio_server_add_conn_pid(&conn_list, pid);
1350 /* if error, it's already logged, non-fatal */
1351 get_my_addr_str(sk);
1354 * Assign sk_out here, it'll be dropped in handle_connection()
1355 * since that function calls _exit() when done
1357 sk_out_assign(sk_out);
1358 handle_connection(sk_out);
1364 int fio_server_text_output(int level, const char *buf, size_t len)
1366 struct sk_out *sk_out = pthread_getspecific(sk_out_key);
1367 struct cmd_text_pdu *pdu;
1371 if (!sk_out || sk_out->sk == -1)
1374 tlen = sizeof(*pdu) + len;
1377 pdu->level = __cpu_to_le32(level);
1378 pdu->buf_len = __cpu_to_le32(len);
1380 gettimeofday(&tv, NULL);
1381 pdu->log_sec = __cpu_to_le64(tv.tv_sec);
1382 pdu->log_usec = __cpu_to_le64(tv.tv_usec);
1384 memcpy(pdu->buf, buf, len);
1386 fio_net_queue_cmd(FIO_NET_CMD_TEXT, pdu, tlen, NULL, SK_F_COPY);
1391 static void convert_io_stat(struct io_stat *dst, struct io_stat *src)
1393 dst->max_val = cpu_to_le64(src->max_val);
1394 dst->min_val = cpu_to_le64(src->min_val);
1395 dst->samples = cpu_to_le64(src->samples);
1398 * Encode to IEEE 754 for network transfer
1400 dst->mean.u.i = cpu_to_le64(fio_double_to_uint64(src->mean.u.f));
1401 dst->S.u.i = cpu_to_le64(fio_double_to_uint64(src->S.u.f));
1404 static void convert_gs(struct group_run_stats *dst, struct group_run_stats *src)
1408 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1409 dst->max_run[i] = cpu_to_le64(src->max_run[i]);
1410 dst->min_run[i] = cpu_to_le64(src->min_run[i]);
1411 dst->max_bw[i] = cpu_to_le64(src->max_bw[i]);
1412 dst->min_bw[i] = cpu_to_le64(src->min_bw[i]);
1413 dst->io_kb[i] = cpu_to_le64(src->io_kb[i]);
1414 dst->agg[i] = cpu_to_le64(src->agg[i]);
1417 dst->kb_base = cpu_to_le32(src->kb_base);
1418 dst->unit_base = cpu_to_le32(src->unit_base);
1419 dst->groupid = cpu_to_le32(src->groupid);
1420 dst->unified_rw_rep = cpu_to_le32(src->unified_rw_rep);
1424 * Send a CMD_TS, which packs struct thread_stat and group_run_stats
1425 * into a single payload.
1427 void fio_server_send_ts(struct thread_stat *ts, struct group_run_stats *rs)
1429 struct cmd_ts_pdu p;
1432 dprint(FD_NET, "server sending end stats\n");
1434 memset(&p, 0, sizeof(p));
1436 strncpy(p.ts.name, ts->name, FIO_JOBNAME_SIZE - 1);
1437 strncpy(p.ts.verror, ts->verror, FIO_VERROR_SIZE - 1);
1438 strncpy(p.ts.description, ts->description, FIO_JOBDESC_SIZE - 1);
1440 p.ts.error = cpu_to_le32(ts->error);
1441 p.ts.thread_number = cpu_to_le32(ts->thread_number);
1442 p.ts.groupid = cpu_to_le32(ts->groupid);
1443 p.ts.pid = cpu_to_le32(ts->pid);
1444 p.ts.members = cpu_to_le32(ts->members);
1445 p.ts.unified_rw_rep = cpu_to_le32(ts->unified_rw_rep);
1447 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1448 convert_io_stat(&p.ts.clat_stat[i], &ts->clat_stat[i]);
1449 convert_io_stat(&p.ts.slat_stat[i], &ts->slat_stat[i]);
1450 convert_io_stat(&p.ts.lat_stat[i], &ts->lat_stat[i]);
1451 convert_io_stat(&p.ts.bw_stat[i], &ts->bw_stat[i]);
1454 p.ts.usr_time = cpu_to_le64(ts->usr_time);
1455 p.ts.sys_time = cpu_to_le64(ts->sys_time);
1456 p.ts.ctx = cpu_to_le64(ts->ctx);
1457 p.ts.minf = cpu_to_le64(ts->minf);
1458 p.ts.majf = cpu_to_le64(ts->majf);
1459 p.ts.clat_percentiles = cpu_to_le64(ts->clat_percentiles);
1460 p.ts.percentile_precision = cpu_to_le64(ts->percentile_precision);
1462 for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) {
1463 fio_fp64_t *src = &ts->percentile_list[i];
1464 fio_fp64_t *dst = &p.ts.percentile_list[i];
1466 dst->u.i = cpu_to_le64(fio_double_to_uint64(src->u.f));
1469 for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
1470 p.ts.io_u_map[i] = cpu_to_le32(ts->io_u_map[i]);
1471 p.ts.io_u_submit[i] = cpu_to_le32(ts->io_u_submit[i]);
1472 p.ts.io_u_complete[i] = cpu_to_le32(ts->io_u_complete[i]);
1475 for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) {
1476 p.ts.io_u_lat_u[i] = cpu_to_le32(ts->io_u_lat_u[i]);
1477 p.ts.io_u_lat_m[i] = cpu_to_le32(ts->io_u_lat_m[i]);
1480 for (i = 0; i < DDIR_RWDIR_CNT; i++)
1481 for (j = 0; j < FIO_IO_U_PLAT_NR; j++)
1482 p.ts.io_u_plat[i][j] = cpu_to_le32(ts->io_u_plat[i][j]);
1484 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1485 p.ts.total_io_u[i] = cpu_to_le64(ts->total_io_u[i]);
1486 p.ts.short_io_u[i] = cpu_to_le64(ts->short_io_u[i]);
1487 p.ts.drop_io_u[i] = cpu_to_le64(ts->drop_io_u[i]);
1490 p.ts.total_submit = cpu_to_le64(ts->total_submit);
1491 p.ts.total_complete = cpu_to_le64(ts->total_complete);
1493 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1494 p.ts.io_bytes[i] = cpu_to_le64(ts->io_bytes[i]);
1495 p.ts.runtime[i] = cpu_to_le64(ts->runtime[i]);
1498 p.ts.total_run_time = cpu_to_le64(ts->total_run_time);
1499 p.ts.continue_on_error = cpu_to_le16(ts->continue_on_error);
1500 p.ts.total_err_count = cpu_to_le64(ts->total_err_count);
1501 p.ts.first_error = cpu_to_le32(ts->first_error);
1502 p.ts.kb_base = cpu_to_le32(ts->kb_base);
1503 p.ts.unit_base = cpu_to_le32(ts->unit_base);
1505 p.ts.latency_depth = cpu_to_le32(ts->latency_depth);
1506 p.ts.latency_target = cpu_to_le64(ts->latency_target);
1507 p.ts.latency_window = cpu_to_le64(ts->latency_window);
1508 p.ts.latency_percentile.u.i = cpu_to_le64(fio_double_to_uint64(ts->latency_percentile.u.f));
1510 p.ts.nr_block_infos = le64_to_cpu(ts->nr_block_infos);
1511 for (i = 0; i < p.ts.nr_block_infos; i++)
1512 p.ts.block_infos[i] = le32_to_cpu(ts->block_infos[i]);
1514 convert_gs(&p.rs, rs);
1516 fio_net_queue_cmd(FIO_NET_CMD_TS, &p, sizeof(p), NULL, SK_F_COPY);
1519 void fio_server_send_gs(struct group_run_stats *rs)
1521 struct group_run_stats gs;
1523 dprint(FD_NET, "server sending group run stats\n");
1525 convert_gs(&gs, rs);
1526 fio_net_queue_cmd(FIO_NET_CMD_GS, &gs, sizeof(gs), NULL, SK_F_COPY);
1529 void fio_server_send_job_options(struct flist_head *opt_list,
1530 unsigned int groupid)
1532 struct cmd_job_option pdu;
1533 struct flist_head *entry;
1535 if (flist_empty(opt_list))
1538 flist_for_each(entry, opt_list) {
1539 struct print_option *p;
1542 p = flist_entry(entry, struct print_option, list);
1543 memset(&pdu, 0, sizeof(pdu));
1545 if (groupid == -1U) {
1546 pdu.global = __cpu_to_le16(1);
1550 pdu.groupid = cpu_to_le32(groupid);
1552 len = strlen(p->name);
1553 if (len >= sizeof(pdu.name)) {
1554 len = sizeof(pdu.name) - 1;
1555 pdu.truncated = __cpu_to_le16(1);
1557 memcpy(pdu.name, p->name, len);
1559 len = strlen(p->value);
1560 if (len >= sizeof(pdu.value)) {
1561 len = sizeof(pdu.value) - 1;
1562 pdu.truncated = __cpu_to_le16(1);
1564 memcpy(pdu.value, p->value, len);
1566 fio_net_queue_cmd(FIO_NET_CMD_JOB_OPT, &pdu, sizeof(pdu), NULL, SK_F_COPY);
1570 static void convert_agg(struct disk_util_agg *dst, struct disk_util_agg *src)
1574 for (i = 0; i < 2; i++) {
1575 dst->ios[i] = cpu_to_le64(src->ios[i]);
1576 dst->merges[i] = cpu_to_le64(src->merges[i]);
1577 dst->sectors[i] = cpu_to_le64(src->sectors[i]);
1578 dst->ticks[i] = cpu_to_le64(src->ticks[i]);
1581 dst->io_ticks = cpu_to_le64(src->io_ticks);
1582 dst->time_in_queue = cpu_to_le64(src->time_in_queue);
1583 dst->slavecount = cpu_to_le32(src->slavecount);
1584 dst->max_util.u.i = cpu_to_le64(fio_double_to_uint64(src->max_util.u.f));
1587 static void convert_dus(struct disk_util_stat *dst, struct disk_util_stat *src)
1591 dst->name[FIO_DU_NAME_SZ - 1] = '\0';
1592 strncpy((char *) dst->name, (char *) src->name, FIO_DU_NAME_SZ - 1);
1594 for (i = 0; i < 2; i++) {
1595 dst->s.ios[i] = cpu_to_le64(src->s.ios[i]);
1596 dst->s.merges[i] = cpu_to_le64(src->s.merges[i]);
1597 dst->s.sectors[i] = cpu_to_le64(src->s.sectors[i]);
1598 dst->s.ticks[i] = cpu_to_le64(src->s.ticks[i]);
1601 dst->s.io_ticks = cpu_to_le64(src->s.io_ticks);
1602 dst->s.time_in_queue = cpu_to_le64(src->s.time_in_queue);
1603 dst->s.msec = cpu_to_le64(src->s.msec);
1606 void fio_server_send_du(void)
1608 struct disk_util *du;
1609 struct flist_head *entry;
1610 struct cmd_du_pdu pdu;
1612 dprint(FD_NET, "server: sending disk_util %d\n", !flist_empty(&disk_list));
1614 memset(&pdu, 0, sizeof(pdu));
1616 flist_for_each(entry, &disk_list) {
1617 du = flist_entry(entry, struct disk_util, list);
1619 convert_dus(&pdu.dus, &du->dus);
1620 convert_agg(&pdu.agg, &du->agg);
1622 fio_net_queue_cmd(FIO_NET_CMD_DU, &pdu, sizeof(pdu), NULL, SK_F_COPY);
1626 static int fio_send_iolog_gz(struct sk_entry *first, struct io_log *log)
1630 struct sk_entry *entry;
1635 * Dirty - since the log is potentially huge, compress it into
1636 * FIO_SERVER_MAX_FRAGMENT_PDU chunks and let the receiving
1637 * side defragment it.
1639 out_pdu = malloc(FIO_SERVER_MAX_FRAGMENT_PDU);
1641 stream.zalloc = Z_NULL;
1642 stream.zfree = Z_NULL;
1643 stream.opaque = Z_NULL;
1645 if (deflateInit(&stream, Z_DEFAULT_COMPRESSION) != Z_OK) {
1650 stream.next_in = (void *) log->log;
1651 stream.avail_in = log->nr_samples * log_entry_sz(log);
1654 unsigned int this_len;
1656 stream.avail_out = FIO_SERVER_MAX_FRAGMENT_PDU;
1657 stream.next_out = out_pdu;
1658 ret = deflate(&stream, Z_FINISH);
1659 /* may be Z_OK, or Z_STREAM_END */
1663 this_len = FIO_SERVER_MAX_FRAGMENT_PDU - stream.avail_out;
1665 entry = fio_net_prep_cmd(FIO_NET_CMD_IOLOG, out_pdu, this_len,
1666 NULL, SK_F_VEC | SK_F_INLINE | SK_F_FREE);
1668 flist_add_tail(&entry->list, &first->next);
1669 } while (stream.avail_in);
1672 deflateEnd(&stream);
1679 int fio_send_iolog(struct thread_data *td, struct io_log *log, const char *name)
1681 struct cmd_iolog_pdu pdu;
1682 struct sk_entry *first;
1685 pdu.nr_samples = cpu_to_le64(log->nr_samples);
1686 pdu.thread_number = cpu_to_le32(td->thread_number);
1687 pdu.log_type = cpu_to_le32(log->log_type);
1688 pdu.compressed = cpu_to_le32(use_zlib);
1690 strncpy((char *) pdu.name, name, FIO_NET_NAME_MAX);
1691 pdu.name[FIO_NET_NAME_MAX - 1] = '\0';
1693 for (i = 0; i < log->nr_samples; i++) {
1694 struct io_sample *s = get_sample(log, i);
1696 s->time = cpu_to_le64(s->time);
1697 s->val = cpu_to_le64(s->val);
1698 s->__ddir = cpu_to_le32(s->__ddir);
1699 s->bs = cpu_to_le32(s->bs);
1701 if (log->log_offset) {
1702 struct io_sample_offset *so = (void *) s;
1704 so->offset = cpu_to_le64(so->offset);
1709 * Assemble header entry first
1711 first = fio_net_prep_cmd(FIO_NET_CMD_IOLOG, &pdu, sizeof(pdu), NULL, SK_F_VEC | SK_F_INLINE | SK_F_COPY);
1714 * Now append actual log entries. Compress if we can, otherwise just
1715 * plain text output.
1718 ret = fio_send_iolog_gz(first, log);
1720 struct sk_entry *entry;
1722 entry = fio_net_prep_cmd(FIO_NET_CMD_IOLOG, log->log,
1723 log->nr_samples * log_entry_sz(log),
1724 NULL, SK_F_VEC | SK_F_INLINE);
1725 flist_add_tail(&entry->list, &first->next);
1728 fio_net_queue_entry(first);
1732 void fio_server_send_add_job(struct thread_data *td)
1734 struct cmd_add_job_pdu pdu;
1736 memset(&pdu, 0, sizeof(pdu));
1737 pdu.thread_number = cpu_to_le32(td->thread_number);
1738 pdu.groupid = cpu_to_le32(td->groupid);
1739 convert_thread_options_to_net(&pdu.top, &td->o);
1741 fio_net_queue_cmd(FIO_NET_CMD_ADD_JOB, &pdu, sizeof(pdu), NULL, SK_F_COPY);
1744 void fio_server_send_start(struct thread_data *td)
1746 struct sk_out *sk_out = pthread_getspecific(sk_out_key);
1748 assert(sk_out->sk != -1);
1750 fio_net_queue_cmd(FIO_NET_CMD_SERVER_START, NULL, 0, 0, SK_F_SIMPLE);
1753 int fio_server_get_verify_state(const char *name, int threadnumber,
1754 void **datap, int *version)
1756 struct thread_io_list *s;
1757 struct cmd_sendfile out;
1758 struct cmd_reply *rep;
1762 dprint(FD_NET, "server: request verify state\n");
1764 rep = smalloc(sizeof(*rep));
1766 log_err("fio: smalloc pool too small\n");
1770 __fio_mutex_init(&rep->lock, FIO_MUTEX_LOCKED);
1774 verify_state_gen_name((char *) out.path, sizeof(out.path), name, me,
1776 tag = (uint64_t) (uintptr_t) rep;
1777 fio_net_queue_cmd(FIO_NET_CMD_SENDFILE, &out, sizeof(out), &tag, SK_F_COPY);
1780 * Wait for the backend to receive the reply
1782 if (fio_mutex_down_timeout(&rep->lock, 10000)) {
1783 log_err("fio: timed out waiting for reply\n");
1788 log_err("fio: failure on receiving state file: %s\n", strerror(rep->error));
1792 fio_net_queue_quit();
1797 * The format is verify_state_hdr, then thread_io_list. Verify
1798 * the header, and the thread_io_list checksum
1800 s = rep->data + sizeof(struct verify_state_hdr);
1801 if (verify_state_hdr(rep->data, s, version))
1805 * Don't need the header from now, copy just the thread_io_list
1807 rep->size -= sizeof(struct verify_state_hdr);
1808 data = malloc(rep->size);
1809 memcpy(data, s, rep->size);
1813 __fio_mutex_remove(&rep->lock);
1818 static int fio_init_server_ip(void)
1820 struct sockaddr *addr;
1827 sk = socket(AF_INET6, SOCK_STREAM, 0);
1829 sk = socket(AF_INET, SOCK_STREAM, 0);
1832 log_err("fio: socket: %s\n", strerror(errno));
1837 if (setsockopt(sk, SOL_SOCKET, SO_REUSEADDR, (void *)&opt, sizeof(opt)) < 0) {
1838 log_err("fio: setsockopt(REUSEADDR): %s\n", strerror(errno));
1843 if (setsockopt(sk, SOL_SOCKET, SO_REUSEPORT, &opt, sizeof(opt)) < 0) {
1844 log_err("fio: setsockopt(REUSEPORT): %s\n", strerror(errno));
1851 const void *src = &saddr_in6.sin6_addr;
1853 addr = (struct sockaddr *) &saddr_in6;
1854 socklen = sizeof(saddr_in6);
1855 saddr_in6.sin6_family = AF_INET6;
1856 str = inet_ntop(AF_INET6, src, buf, sizeof(buf));
1858 const void *src = &saddr_in.sin_addr;
1860 addr = (struct sockaddr *) &saddr_in;
1861 socklen = sizeof(saddr_in);
1862 saddr_in.sin_family = AF_INET;
1863 str = inet_ntop(AF_INET, src, buf, sizeof(buf));
1866 if (bind(sk, addr, socklen) < 0) {
1867 log_err("fio: bind: %s\n", strerror(errno));
1868 log_info("fio: failed with IPv%c %s\n", use_ipv6 ? '6' : '4', str);
1876 static int fio_init_server_sock(void)
1878 struct sockaddr_un addr;
1883 sk = socket(AF_UNIX, SOCK_STREAM, 0);
1885 log_err("fio: socket: %s\n", strerror(errno));
1891 memset(&addr, 0, sizeof(addr));
1892 addr.sun_family = AF_UNIX;
1893 strncpy(addr.sun_path, bind_sock, sizeof(addr.sun_path) - 1);
1895 len = sizeof(addr.sun_family) + strlen(bind_sock) + 1;
1897 if (bind(sk, (struct sockaddr *) &addr, len) < 0) {
1898 log_err("fio: bind: %s\n", strerror(errno));
1907 static int fio_init_server_connection(void)
1912 dprint(FD_NET, "starting server\n");
1915 sk = fio_init_server_ip();
1917 sk = fio_init_server_sock();
1922 memset(bind_str, 0, sizeof(bind_str));
1931 src = &saddr_in6.sin6_addr;
1934 src = &saddr_in.sin_addr;
1937 p = (char *) inet_ntop(af, src, bind_str, sizeof(bind_str));
1939 sprintf(port, ",%u", fio_net_port);
1943 strncpy(bind_str, port, sizeof(bind_str) - 1);
1945 strncpy(bind_str, bind_sock, sizeof(bind_str) - 1);
1947 log_info("fio: server listening on %s\n", bind_str);
1949 if (listen(sk, 4) < 0) {
1950 log_err("fio: listen: %s\n", strerror(errno));
1958 int fio_server_parse_host(const char *host, int ipv6, struct in_addr *inp,
1959 struct in6_addr *inp6)
1965 ret = inet_pton(AF_INET6, host, inp6);
1967 ret = inet_pton(AF_INET, host, inp);
1970 struct addrinfo hints, *res;
1972 memset(&hints, 0, sizeof(hints));
1973 hints.ai_family = ipv6 ? AF_INET6 : AF_INET;
1974 hints.ai_socktype = SOCK_STREAM;
1976 ret = getaddrinfo(host, NULL, &hints, &res);
1978 log_err("fio: failed to resolve <%s> (%s)\n", host,
1984 memcpy(inp6, &((struct sockaddr_in6 *) res->ai_addr)->sin6_addr, sizeof(*inp6));
1986 memcpy(inp, &((struct sockaddr_in *) res->ai_addr)->sin_addr, sizeof(*inp));
1996 * Parse a host/ip/port string. Reads from 'str'.
2001 * *ptr is the host, *port is the port, inp is the destination.
2003 * *ptr is the host, *port is the port, inp6 is the dest, and *ipv6 is 1.
2004 * For local domain sockets:
2005 * *ptr is the filename, *is_sock is 1.
2007 int fio_server_parse_string(const char *str, char **ptr, int *is_sock,
2008 int *port, struct in_addr *inp,
2009 struct in6_addr *inp6, int *ipv6)
2011 const char *host = str;
2017 *port = fio_net_port;
2020 if (!strncmp(str, "sock:", 5)) {
2021 *ptr = strdup(str + 5);
2028 * Is it ip:<ip or host>:port
2030 if (!strncmp(host, "ip:", 3))
2032 else if (!strncmp(host, "ip4:", 4))
2034 else if (!strncmp(host, "ip6:", 4)) {
2037 } else if (host[0] == ':') {
2038 /* String is :port */
2041 if (!lport || lport > 65535) {
2042 log_err("fio: bad server port %u\n", lport);
2045 /* no hostname given, we are done */
2051 * If no port seen yet, check if there's a last ',' at the end
2054 portp = strchr(host, ',');
2058 lport = atoi(portp);
2059 if (!lport || lport > 65535) {
2060 log_err("fio: bad server port %u\n", lport);
2072 *ptr = strdup(host);
2074 if (fio_server_parse_host(*ptr, *ipv6, inp, inp6)) {
2081 *port = fio_net_port;
2087 * Server arg should be one of:
2089 * sock:/path/to/socket
2093 * Where sock uses unix domain sockets, and ip binds the server to
2094 * a specific interface. If no arguments are given to the server, it
2095 * uses IP and binds to 0.0.0.0.
2098 static int fio_handle_server_arg(void)
2100 int port = fio_net_port;
2101 int is_sock, ret = 0;
2103 saddr_in.sin_addr.s_addr = htonl(INADDR_ANY);
2105 if (!fio_server_arg)
2108 ret = fio_server_parse_string(fio_server_arg, &bind_sock, &is_sock,
2109 &port, &saddr_in.sin_addr,
2110 &saddr_in6.sin6_addr, &use_ipv6);
2112 if (!is_sock && bind_sock) {
2118 fio_net_port = port;
2119 saddr_in.sin_port = htons(port);
2120 saddr_in6.sin6_port = htons(port);
2124 static void sig_int(int sig)
2130 static void set_sig_handlers(void)
2132 struct sigaction act;
2134 memset(&act, 0, sizeof(act));
2135 act.sa_handler = sig_int;
2136 act.sa_flags = SA_RESTART;
2137 sigaction(SIGINT, &act, NULL);
2140 static int fio_server(void)
2144 if (pthread_key_create(&sk_out_key, NULL)) {
2145 log_err("fio: can't create sk_out backend key\n");
2149 pthread_setspecific(sk_out_key, NULL);
2151 dprint(FD_NET, "starting server\n");
2153 if (fio_handle_server_arg())
2156 sk = fio_init_server_connection();
2162 ret = accept_loop(sk);
2166 if (fio_server_arg) {
2167 free(fio_server_arg);
2168 fio_server_arg = NULL;
2176 void fio_server_got_signal(int signal)
2178 struct sk_out *sk_out = pthread_getspecific(sk_out_key);
2182 if (signal == SIGPIPE)
2185 log_info("\nfio: terminating on signal %d\n", signal);
2190 static int check_existing_pidfile(const char *pidfile)
2197 if (stat(pidfile, &sb))
2200 f = fopen(pidfile, "r");
2204 if (fread(buf, sb.st_size, 1, f) <= 0) {
2211 if (kill(pid, SIGCONT) < 0)
2212 return errno != ESRCH;
2217 static int write_pid(pid_t pid, const char *pidfile)
2221 fpid = fopen(pidfile, "w");
2223 log_err("fio: failed opening pid file %s\n", pidfile);
2227 fprintf(fpid, "%u\n", (unsigned int) pid);
2233 * If pidfile is specified, background us.
2235 int fio_start_server(char *pidfile)
2242 WSAStartup(MAKEWORD(2, 2), &wsd);
2246 return fio_server();
2248 if (check_existing_pidfile(pidfile)) {
2249 log_err("fio: pidfile %s exists and server appears alive\n",
2257 log_err("fio: failed server fork: %s", strerror(errno));
2261 ret = write_pid(pid, pidfile);
2267 openlog("fio", LOG_NDELAY|LOG_NOWAIT|LOG_PID, LOG_USER);
2269 close(STDIN_FILENO);
2270 close(STDOUT_FILENO);
2271 close(STDERR_FILENO);
2283 void fio_server_set_arg(const char *arg)
2285 fio_server_arg = strdup(arg);