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 assert(sk_out->refs != 0);
155 refs = --sk_out->refs;
160 pthread_setspecific(sk_out_key, NULL);
168 void sk_out_drop(void)
170 struct sk_out *sk_out;
172 sk_out = pthread_getspecific(sk_out_key);
173 __sk_out_drop(sk_out);
176 static void __fio_init_net_cmd(struct fio_net_cmd *cmd, uint16_t opcode,
177 uint32_t pdu_len, uint64_t tag)
179 memset(cmd, 0, sizeof(*cmd));
181 cmd->version = __cpu_to_le16(FIO_SERVER_VER);
182 cmd->opcode = cpu_to_le16(opcode);
183 cmd->tag = cpu_to_le64(tag);
184 cmd->pdu_len = cpu_to_le32(pdu_len);
188 static void fio_init_net_cmd(struct fio_net_cmd *cmd, uint16_t opcode,
189 const void *pdu, uint32_t pdu_len, uint64_t tag)
191 __fio_init_net_cmd(cmd, opcode, pdu_len, tag);
194 memcpy(&cmd->payload, pdu, pdu_len);
197 const char *fio_server_op(unsigned int op)
201 if (op < FIO_NET_CMD_NR)
202 return fio_server_ops[op];
204 sprintf(buf, "UNKNOWN/%d", op);
208 static ssize_t iov_total_len(const struct iovec *iov, int count)
220 static int fio_sendv_data(int sk, struct iovec *iov, int count)
222 ssize_t total_len = iov_total_len(iov, count);
226 ret = writev(sk, iov, count);
233 if (ret >= iov->iov_len) {
238 iov->iov_base += ret;
244 else if (errno == EAGAIN || errno == EINTR)
248 } while (!exit_backend);
256 static int fio_send_data(int sk, const void *p, unsigned int len)
258 struct iovec iov = { .iov_base = (void *) p, .iov_len = len };
260 assert(len <= sizeof(struct fio_net_cmd) + FIO_SERVER_MAX_FRAGMENT_PDU);
262 return fio_sendv_data(sk, &iov, 1);
265 static int fio_recv_data(int sk, void *p, unsigned int len, bool wait)
272 flags = OS_MSG_DONTWAIT;
275 int ret = recv(sk, p, len, flags);
285 else if (errno == EAGAIN || errno == EINTR) {
291 } while (!exit_backend);
299 static int verify_convert_cmd(struct fio_net_cmd *cmd)
303 cmd->cmd_crc16 = le16_to_cpu(cmd->cmd_crc16);
304 cmd->pdu_crc16 = le16_to_cpu(cmd->pdu_crc16);
306 crc = fio_crc16(cmd, FIO_NET_CMD_CRC_SZ);
307 if (crc != cmd->cmd_crc16) {
308 log_err("fio: server bad crc on command (got %x, wanted %x)\n",
309 cmd->cmd_crc16, crc);
313 cmd->version = le16_to_cpu(cmd->version);
314 cmd->opcode = le16_to_cpu(cmd->opcode);
315 cmd->flags = le32_to_cpu(cmd->flags);
316 cmd->tag = le64_to_cpu(cmd->tag);
317 cmd->pdu_len = le32_to_cpu(cmd->pdu_len);
319 switch (cmd->version) {
323 log_err("fio: bad server cmd version %d\n", cmd->version);
331 * Read (and defragment, if necessary) incoming commands
333 struct fio_net_cmd *fio_net_recv_cmd(int sk, bool wait)
335 struct fio_net_cmd cmd, *tmp, *cmdret = NULL;
336 size_t cmd_size = 0, pdu_offset = 0;
342 ret = fio_recv_data(sk, &cmd, sizeof(cmd), wait);
346 /* We have a command, verify it and swap if need be */
347 ret = verify_convert_cmd(&cmd);
352 /* if this is text, add room for \0 at the end */
353 cmd_size = sizeof(cmd) + cmd.pdu_len + 1;
356 cmd_size += cmd.pdu_len;
358 if (cmd_size / 1024 > FIO_SERVER_MAX_CMD_MB * 1024) {
359 log_err("fio: cmd+pdu too large (%llu)\n", (unsigned long long) cmd_size);
364 tmp = realloc(cmdret, cmd_size);
366 log_err("fio: server failed allocating cmd\n");
373 memcpy(cmdret, &cmd, sizeof(cmd));
374 else if (cmdret->opcode != cmd.opcode) {
375 log_err("fio: fragment opcode mismatch (%d != %d)\n",
376 cmdret->opcode, cmd.opcode);
384 /* There's payload, get it */
385 pdu = (void *) cmdret->payload + pdu_offset;
386 ret = fio_recv_data(sk, pdu, cmd.pdu_len, wait);
390 /* Verify payload crc */
391 crc = fio_crc16(pdu, cmd.pdu_len);
392 if (crc != cmd.pdu_crc16) {
393 log_err("fio: server bad crc on payload ");
394 log_err("(got %x, wanted %x)\n", cmd.pdu_crc16, crc);
399 pdu_offset += cmd.pdu_len;
401 cmdret->pdu_len += cmd.pdu_len;
403 } while (cmd.flags & FIO_NET_CMD_F_MORE);
409 /* zero-terminate text input */
410 if (cmdret->pdu_len) {
411 if (cmdret->opcode == FIO_NET_CMD_TEXT) {
412 struct cmd_text_pdu *__pdu = (struct cmd_text_pdu *) cmdret->payload;
413 char *buf = (char *) __pdu->buf;
415 buf[__pdu->buf_len] = '\0';
416 } else if (cmdret->opcode == FIO_NET_CMD_JOB) {
417 struct cmd_job_pdu *__pdu = (struct cmd_job_pdu *) cmdret->payload;
418 char *buf = (char *) __pdu->buf;
419 int len = le32_to_cpu(__pdu->buf_len);
425 /* frag flag is internal */
426 cmdret->flags &= ~FIO_NET_CMD_F_MORE;
432 static void add_reply(uint64_t tag, struct flist_head *list)
434 struct fio_net_cmd_reply *reply;
436 reply = (struct fio_net_cmd_reply *) (uintptr_t) tag;
437 flist_add_tail(&reply->list, list);
440 static uint64_t alloc_reply(uint64_t tag, uint16_t opcode)
442 struct fio_net_cmd_reply *reply;
444 reply = calloc(1, sizeof(*reply));
445 INIT_FLIST_HEAD(&reply->list);
446 fio_gettime(&reply->tv, NULL);
447 reply->saved_tag = tag;
448 reply->opcode = opcode;
450 return (uintptr_t) reply;
453 static void free_reply(uint64_t tag)
455 struct fio_net_cmd_reply *reply;
457 reply = (struct fio_net_cmd_reply *) (uintptr_t) tag;
461 static void fio_net_cmd_crc_pdu(struct fio_net_cmd *cmd, const void *pdu)
465 cmd->cmd_crc16 = __cpu_to_le16(fio_crc16(cmd, FIO_NET_CMD_CRC_SZ));
467 pdu_len = le32_to_cpu(cmd->pdu_len);
468 cmd->pdu_crc16 = __cpu_to_le16(fio_crc16(pdu, pdu_len));
471 static void fio_net_cmd_crc(struct fio_net_cmd *cmd)
473 fio_net_cmd_crc_pdu(cmd, cmd->payload);
476 int fio_net_send_cmd(int fd, uint16_t opcode, const void *buf, off_t size,
477 uint64_t *tagptr, struct flist_head *list)
479 struct fio_net_cmd *cmd = NULL;
480 size_t this_len, cur_len = 0;
486 tag = *tagptr = alloc_reply(*tagptr, opcode);
488 tag = tagptr ? *tagptr : 0;
492 if (this_len > FIO_SERVER_MAX_FRAGMENT_PDU)
493 this_len = FIO_SERVER_MAX_FRAGMENT_PDU;
495 if (!cmd || cur_len < sizeof(*cmd) + this_len) {
499 cur_len = sizeof(*cmd) + this_len;
500 cmd = malloc(cur_len);
503 fio_init_net_cmd(cmd, opcode, buf, this_len, tag);
506 cmd->flags = __cpu_to_le32(FIO_NET_CMD_F_MORE);
508 fio_net_cmd_crc(cmd);
510 ret = fio_send_data(fd, cmd, sizeof(*cmd) + this_len);
513 } while (!ret && size);
519 add_reply(tag, list);
528 static struct sk_entry *fio_net_prep_cmd(uint16_t opcode, void *buf,
529 size_t size, uint64_t *tagptr,
532 struct sk_entry *entry;
534 entry = smalloc(sizeof(*entry));
535 INIT_FLIST_HEAD(&entry->next);
536 entry->opcode = opcode;
537 if (flags & SK_F_COPY) {
538 entry->buf = smalloc(size);
539 memcpy(entry->buf, buf, size);
545 entry->tag = *tagptr;
548 entry->flags = flags;
552 static int handle_sk_entry(struct sk_out *sk_out, struct sk_entry *entry);
554 static void fio_net_queue_entry(struct sk_entry *entry)
556 struct sk_out *sk_out = pthread_getspecific(sk_out_key);
558 if (entry->flags & SK_F_INLINE)
559 handle_sk_entry(sk_out, entry);
562 flist_add_tail(&entry->list, &sk_out->list);
565 fio_mutex_up(&sk_out->wait);
569 static int fio_net_queue_cmd(uint16_t opcode, void *buf, off_t size,
570 uint64_t *tagptr, int flags)
572 struct sk_entry *entry;
574 entry = fio_net_prep_cmd(opcode, buf, size, tagptr, flags);
575 fio_net_queue_entry(entry);
579 static int fio_net_send_simple_stack_cmd(int sk, uint16_t opcode, uint64_t tag)
581 struct fio_net_cmd cmd;
583 fio_init_net_cmd(&cmd, opcode, NULL, 0, tag);
584 fio_net_cmd_crc(&cmd);
586 return fio_send_data(sk, &cmd, sizeof(cmd));
590 * If 'list' is non-NULL, then allocate and store the sent command for
591 * later verification.
593 int fio_net_send_simple_cmd(int sk, uint16_t opcode, uint64_t tag,
594 struct flist_head *list)
599 tag = alloc_reply(tag, opcode);
601 ret = fio_net_send_simple_stack_cmd(sk, opcode, tag);
610 add_reply(tag, list);
615 static int fio_net_queue_quit(void)
617 dprint(FD_NET, "server: sending quit\n");
619 return fio_net_queue_cmd(FIO_NET_CMD_QUIT, NULL, 0, 0, SK_F_SIMPLE);
622 int fio_net_send_quit(int sk)
624 dprint(FD_NET, "server: sending quit\n");
626 return fio_net_send_simple_cmd(sk, FIO_NET_CMD_QUIT, 0, NULL);
629 static int fio_net_send_ack(struct fio_net_cmd *cmd, int error, int signal)
631 struct cmd_end_pdu epdu;
637 epdu.error = __cpu_to_le32(error);
638 epdu.signal = __cpu_to_le32(signal);
639 return fio_net_queue_cmd(FIO_NET_CMD_STOP, &epdu, sizeof(epdu), &tag, SK_F_COPY);
642 static int fio_net_queue_stop(int error, int signal)
644 dprint(FD_NET, "server: sending stop (%d, %d)\n", error, signal);
645 return fio_net_send_ack(NULL, error, signal);
648 static void fio_server_add_fork_item(pid_t pid, struct flist_head *list)
650 struct fio_fork_item *ffi;
652 ffi = malloc(sizeof(*ffi));
657 flist_add_tail(&ffi->list, list);
660 static void fio_server_add_conn_pid(struct flist_head *conn_list, pid_t pid)
662 dprint(FD_NET, "server: forked off connection job (pid=%u)\n", (int) pid);
663 fio_server_add_fork_item(pid, conn_list);
666 static void fio_server_add_job_pid(struct flist_head *job_list, pid_t pid)
668 dprint(FD_NET, "server: forked off job job (pid=%u)\n", (int) pid);
669 fio_server_add_fork_item(pid, job_list);
672 static void fio_server_check_fork_item(struct fio_fork_item *ffi)
676 ret = waitpid(ffi->pid, &status, WNOHANG);
678 if (errno == ECHILD) {
679 log_err("fio: connection pid %u disappeared\n", (int) ffi->pid);
682 log_err("fio: waitpid: %s\n", strerror(errno));
683 } else if (ret == ffi->pid) {
684 if (WIFSIGNALED(status)) {
685 ffi->signal = WTERMSIG(status);
688 if (WIFEXITED(status)) {
689 if (WEXITSTATUS(status))
690 ffi->exitval = WEXITSTATUS(status);
696 static void fio_server_fork_item_done(struct fio_fork_item *ffi, bool stop)
698 dprint(FD_NET, "pid %u exited, sig=%u, exitval=%d\n", (int) ffi->pid, ffi->signal, ffi->exitval);
701 * Fold STOP and QUIT...
704 fio_net_queue_stop(ffi->exitval, ffi->signal);
705 fio_net_queue_quit();
708 flist_del(&ffi->list);
712 static void fio_server_check_fork_items(struct flist_head *list, bool stop)
714 struct flist_head *entry, *tmp;
715 struct fio_fork_item *ffi;
717 flist_for_each_safe(entry, tmp, list) {
718 ffi = flist_entry(entry, struct fio_fork_item, list);
720 fio_server_check_fork_item(ffi);
723 fio_server_fork_item_done(ffi, stop);
727 static void fio_server_check_jobs(struct flist_head *job_list)
729 fio_server_check_fork_items(job_list, true);
732 static void fio_server_check_conns(struct flist_head *conn_list)
734 fio_server_check_fork_items(conn_list, false);
737 static int handle_load_file_cmd(struct fio_net_cmd *cmd)
739 struct cmd_load_file_pdu *pdu = (struct cmd_load_file_pdu *) cmd->payload;
740 void *file_name = pdu->file;
741 struct cmd_start_pdu spdu;
743 dprint(FD_NET, "server: loading local file %s\n", (char *) file_name);
745 pdu->name_len = le16_to_cpu(pdu->name_len);
746 pdu->client_type = le16_to_cpu(pdu->client_type);
748 if (parse_jobs_ini(file_name, 0, 0, pdu->client_type)) {
749 fio_net_queue_quit();
753 spdu.jobs = cpu_to_le32(thread_number);
754 spdu.stat_outputs = cpu_to_le32(stat_number);
755 fio_net_queue_cmd(FIO_NET_CMD_START, &spdu, sizeof(spdu), NULL, SK_F_COPY);
759 static int handle_run_cmd(struct sk_out *sk_out, struct flist_head *job_list,
760 struct fio_net_cmd *cmd)
765 sk_out_assign(sk_out);
772 fio_server_add_job_pid(job_list, pid);
776 ret = fio_backend(sk_out);
782 static int handle_job_cmd(struct fio_net_cmd *cmd)
784 struct cmd_job_pdu *pdu = (struct cmd_job_pdu *) cmd->payload;
785 void *buf = pdu->buf;
786 struct cmd_start_pdu spdu;
788 pdu->buf_len = le32_to_cpu(pdu->buf_len);
789 pdu->client_type = le32_to_cpu(pdu->client_type);
791 if (parse_jobs_ini(buf, 1, 0, pdu->client_type)) {
792 fio_net_queue_quit();
796 spdu.jobs = cpu_to_le32(thread_number);
797 spdu.stat_outputs = cpu_to_le32(stat_number);
799 fio_net_queue_cmd(FIO_NET_CMD_START, &spdu, sizeof(spdu), NULL, SK_F_COPY);
803 static int handle_jobline_cmd(struct fio_net_cmd *cmd)
805 void *pdu = cmd->payload;
806 struct cmd_single_line_pdu *cslp;
807 struct cmd_line_pdu *clp;
808 unsigned long offset;
809 struct cmd_start_pdu spdu;
814 clp->lines = le16_to_cpu(clp->lines);
815 clp->client_type = le16_to_cpu(clp->client_type);
816 argv = malloc(clp->lines * sizeof(char *));
817 offset = sizeof(*clp);
819 dprint(FD_NET, "server: %d command line args\n", clp->lines);
821 for (i = 0; i < clp->lines; i++) {
823 argv[i] = (char *) cslp->text;
825 offset += sizeof(*cslp) + le16_to_cpu(cslp->len);
826 dprint(FD_NET, "server: %d: %s\n", i, argv[i]);
829 if (parse_cmd_line(clp->lines, argv, clp->client_type)) {
830 fio_net_queue_quit();
837 spdu.jobs = cpu_to_le32(thread_number);
838 spdu.stat_outputs = cpu_to_le32(stat_number);
840 fio_net_queue_cmd(FIO_NET_CMD_START, &spdu, sizeof(spdu), NULL, SK_F_COPY);
844 static int handle_probe_cmd(struct fio_net_cmd *cmd)
846 struct cmd_client_probe_pdu *pdu = (struct cmd_client_probe_pdu *) cmd->payload;
847 struct cmd_probe_reply_pdu probe;
848 uint64_t tag = cmd->tag;
850 dprint(FD_NET, "server: sending probe reply\n");
852 strcpy(me, (char *) pdu->server);
854 memset(&probe, 0, sizeof(probe));
855 gethostname((char *) probe.hostname, sizeof(probe.hostname));
856 #ifdef CONFIG_BIG_ENDIAN
859 strncpy((char *) probe.fio_version, fio_version_string, sizeof(probe.fio_version));
862 probe.arch = FIO_ARCH;
863 probe.bpp = sizeof(void *);
864 probe.cpus = __cpu_to_le32(cpus_online());
867 * If the client supports compression and we do too, then enable it
869 if (has_zlib && le64_to_cpu(pdu->flags) & FIO_PROBE_FLAG_ZLIB) {
870 probe.flags = __cpu_to_le64(FIO_PROBE_FLAG_ZLIB);
877 return fio_net_queue_cmd(FIO_NET_CMD_PROBE, &probe, sizeof(probe), &tag, SK_F_COPY);
880 static int handle_send_eta_cmd(struct fio_net_cmd *cmd)
883 uint64_t tag = cmd->tag;
887 dprint(FD_NET, "server sending status\n");
890 * Fake ETA return if we don't have a local one, otherwise the client
891 * will end up timing out waiting for a response to the ETA request
893 je = get_jobs_eta(true, &size);
896 je = calloc(1, size);
898 je->nr_running = cpu_to_le32(je->nr_running);
899 je->nr_ramp = cpu_to_le32(je->nr_ramp);
900 je->nr_pending = cpu_to_le32(je->nr_pending);
901 je->nr_setting_up = cpu_to_le32(je->nr_setting_up);
902 je->files_open = cpu_to_le32(je->files_open);
904 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
905 je->m_rate[i] = cpu_to_le32(je->m_rate[i]);
906 je->t_rate[i] = cpu_to_le32(je->t_rate[i]);
907 je->m_iops[i] = cpu_to_le32(je->m_iops[i]);
908 je->t_iops[i] = cpu_to_le32(je->t_iops[i]);
909 je->rate[i] = cpu_to_le32(je->rate[i]);
910 je->iops[i] = cpu_to_le32(je->iops[i]);
913 je->elapsed_sec = cpu_to_le64(je->elapsed_sec);
914 je->eta_sec = cpu_to_le64(je->eta_sec);
915 je->nr_threads = cpu_to_le32(je->nr_threads);
916 je->is_pow2 = cpu_to_le32(je->is_pow2);
917 je->unit_base = cpu_to_le32(je->unit_base);
920 fio_net_queue_cmd(FIO_NET_CMD_ETA, je, size, &tag, SK_F_FREE);
924 static int send_update_job_reply(uint64_t __tag, int error)
926 uint64_t tag = __tag;
929 pdu_error = __cpu_to_le32(error);
930 return fio_net_queue_cmd(FIO_NET_CMD_UPDATE_JOB, &pdu_error, sizeof(pdu_error), &tag, SK_F_COPY);
933 static int handle_update_job_cmd(struct fio_net_cmd *cmd)
935 struct cmd_add_job_pdu *pdu = (struct cmd_add_job_pdu *) cmd->payload;
936 struct thread_data *td;
939 tnumber = le32_to_cpu(pdu->thread_number);
941 dprint(FD_NET, "server: updating options for job %u\n", tnumber);
943 if (!tnumber || tnumber > thread_number) {
944 send_update_job_reply(cmd->tag, ENODEV);
948 td = &threads[tnumber - 1];
949 convert_thread_options_to_cpu(&td->o, &pdu->top);
950 send_update_job_reply(cmd->tag, 0);
954 static int handle_trigger_cmd(struct fio_net_cmd *cmd)
956 struct cmd_vtrigger_pdu *pdu = (struct cmd_vtrigger_pdu *) cmd->payload;
957 char *buf = (char *) pdu->cmd;
958 struct all_io_list *rep;
961 pdu->len = le16_to_cpu(pdu->len);
962 buf[pdu->len] = '\0';
964 rep = get_all_io_list(IO_LIST_ALL, &sz);
966 struct all_io_list state;
968 state.threads = cpu_to_le64((uint64_t) 0);
969 fio_net_queue_cmd(FIO_NET_CMD_VTRIGGER, &state, sizeof(state), NULL, SK_F_COPY);
971 fio_net_queue_cmd(FIO_NET_CMD_VTRIGGER, rep, sz, NULL, SK_F_FREE);
977 static int handle_command(struct sk_out *sk_out, struct flist_head *job_list,
978 struct fio_net_cmd *cmd)
982 dprint(FD_NET, "server: got op [%s], pdu=%u, tag=%llx\n",
983 fio_server_op(cmd->opcode), cmd->pdu_len,
984 (unsigned long long) cmd->tag);
986 switch (cmd->opcode) {
987 case FIO_NET_CMD_QUIT:
988 fio_terminate_threads(TERMINATE_ALL);
991 case FIO_NET_CMD_EXIT:
994 case FIO_NET_CMD_LOAD_FILE:
995 ret = handle_load_file_cmd(cmd);
997 case FIO_NET_CMD_JOB:
998 ret = handle_job_cmd(cmd);
1000 case FIO_NET_CMD_JOBLINE:
1001 ret = handle_jobline_cmd(cmd);
1003 case FIO_NET_CMD_PROBE:
1004 ret = handle_probe_cmd(cmd);
1006 case FIO_NET_CMD_SEND_ETA:
1007 ret = handle_send_eta_cmd(cmd);
1009 case FIO_NET_CMD_RUN:
1010 ret = handle_run_cmd(sk_out, job_list, cmd);
1012 case FIO_NET_CMD_UPDATE_JOB:
1013 ret = handle_update_job_cmd(cmd);
1015 case FIO_NET_CMD_VTRIGGER:
1016 ret = handle_trigger_cmd(cmd);
1018 case FIO_NET_CMD_SENDFILE: {
1019 struct cmd_sendfile_reply *in;
1020 struct cmd_reply *rep;
1022 rep = (struct cmd_reply *) (uintptr_t) cmd->tag;
1024 in = (struct cmd_sendfile_reply *) cmd->payload;
1025 in->size = le32_to_cpu(in->size);
1026 in->error = le32_to_cpu(in->error);
1029 rep->error = in->error;
1032 rep->data = smalloc(in->size);
1035 rep->error = ENOMEM;
1037 rep->size = in->size;
1038 memcpy(rep->data, in->data, in->size);
1041 fio_mutex_up(&rep->lock);
1045 log_err("fio: unknown opcode: %s\n", fio_server_op(cmd->opcode));
1053 * Send a command with a separate PDU, not inlined in the command
1055 static int fio_send_cmd_ext_pdu(int sk, uint16_t opcode, const void *buf,
1056 off_t size, uint64_t tag, uint32_t flags)
1058 struct fio_net_cmd cmd;
1059 struct iovec iov[2];
1061 iov[0].iov_base = (void *) &cmd;
1062 iov[0].iov_len = sizeof(cmd);
1063 iov[1].iov_base = (void *) buf;
1064 iov[1].iov_len = size;
1066 __fio_init_net_cmd(&cmd, opcode, size, tag);
1067 cmd.flags = __cpu_to_le32(flags);
1068 fio_net_cmd_crc_pdu(&cmd, buf);
1070 return fio_sendv_data(sk, iov, 2);
1073 static void finish_entry(struct sk_entry *entry)
1075 if (entry->flags & SK_F_FREE)
1077 else if (entry->flags & SK_F_COPY)
1083 static void entry_set_flags(struct sk_entry *entry, struct flist_head *list,
1084 unsigned int *flags)
1086 if (!flist_empty(list))
1087 *flags = FIO_NET_CMD_F_MORE;
1092 static int send_vec_entry(struct sk_out *sk_out, struct sk_entry *first)
1097 entry_set_flags(first, &first->next, &flags);
1099 ret = fio_send_cmd_ext_pdu(sk_out->sk, first->opcode, first->buf,
1100 first->size, first->tag, flags);
1102 while (!flist_empty(&first->next)) {
1103 struct sk_entry *next;
1105 next = flist_first_entry(&first->next, struct sk_entry, list);
1106 flist_del_init(&next->list);
1108 entry_set_flags(next, &first->next, &flags);
1110 ret += fio_send_cmd_ext_pdu(sk_out->sk, next->opcode, next->buf,
1111 next->size, next->tag, flags);
1118 static int handle_sk_entry(struct sk_out *sk_out, struct sk_entry *entry)
1122 fio_mutex_down(&sk_out->xmit);
1124 if (entry->flags & SK_F_VEC)
1125 ret = send_vec_entry(sk_out, entry);
1126 else if (entry->flags & SK_F_SIMPLE) {
1127 ret = fio_net_send_simple_cmd(sk_out->sk, entry->opcode,
1130 ret = fio_net_send_cmd(sk_out->sk, entry->opcode, entry->buf,
1131 entry->size, &entry->tag, NULL);
1134 fio_mutex_up(&sk_out->xmit);
1137 log_err("fio: failed handling cmd %s\n", fio_server_op(entry->opcode));
1139 finish_entry(entry);
1143 static int handle_xmits(struct sk_out *sk_out)
1145 struct sk_entry *entry;
1150 if (flist_empty(&sk_out->list)) {
1155 flist_splice_init(&sk_out->list, &list);
1158 while (!flist_empty(&list)) {
1159 entry = flist_entry(list.next, struct sk_entry, list);
1160 flist_del(&entry->list);
1161 ret += handle_sk_entry(sk_out, entry);
1167 static int handle_connection(struct sk_out *sk_out)
1169 struct fio_net_cmd *cmd = NULL;
1170 FLIST_HEAD(job_list);
1176 while (!exit_backend) {
1177 struct pollfd pfd = {
1186 if (!flist_empty(&job_list))
1189 handle_xmits(sk_out);
1191 ret = poll(&pfd, 1, 0);
1195 log_err("fio: poll: %s\n", strerror(errno));
1198 fio_server_check_jobs(&job_list);
1199 fio_mutex_down_timeout(&sk_out->wait, timeout);
1203 if (pfd.revents & POLLIN)
1205 if (pfd.revents & (POLLERR|POLLHUP)) {
1209 } while (!exit_backend);
1211 fio_server_check_jobs(&job_list);
1216 cmd = fio_net_recv_cmd(sk_out->sk, true);
1222 ret = handle_command(sk_out, &job_list, cmd);
1233 handle_xmits(sk_out);
1237 __sk_out_drop(sk_out);
1241 /* get the address on this host bound by the input socket,
1242 * whether it is ipv6 or ipv4 */
1244 static int get_my_addr_str(int sk)
1246 struct sockaddr_in6 myaddr6 = { 0, };
1247 struct sockaddr_in myaddr4 = { 0, };
1248 struct sockaddr *sockaddr_p;
1254 len = sizeof(myaddr6);
1255 sockaddr_p = (struct sockaddr * )&myaddr6;
1256 net_addr = (char * )&myaddr6.sin6_addr;
1258 len = sizeof(myaddr4);
1259 sockaddr_p = (struct sockaddr * )&myaddr4;
1260 net_addr = (char * )&myaddr4.sin_addr;
1263 ret = getsockname(sk, sockaddr_p, &len);
1265 log_err("fio: getsockaddr: %s\n", strerror(errno));
1269 if (!inet_ntop(use_ipv6?AF_INET6:AF_INET, net_addr, client_sockaddr_str, INET6_ADDRSTRLEN - 1)) {
1270 log_err("inet_ntop: failed to convert addr to string\n");
1274 dprint(FD_NET, "fio server bound to addr %s\n", client_sockaddr_str);
1278 static int accept_loop(int listen_sk)
1280 struct sockaddr_in addr;
1281 struct sockaddr_in6 addr6;
1282 socklen_t len = use_ipv6 ? sizeof(addr6) : sizeof(addr);
1284 int ret = 0, sk, exitval = 0;
1285 FLIST_HEAD(conn_list);
1287 dprint(FD_NET, "server enter accept loop\n");
1289 fio_set_fd_nonblocking(listen_sk, "server");
1291 while (!exit_backend) {
1292 struct sk_out *sk_out;
1298 pfd.events = POLLIN;
1302 if (!flist_empty(&conn_list))
1305 ret = poll(&pfd, 1, timeout);
1309 log_err("fio: poll: %s\n", strerror(errno));
1312 fio_server_check_conns(&conn_list);
1316 if (pfd.revents & POLLIN)
1318 } while (!exit_backend);
1320 fio_server_check_conns(&conn_list);
1322 if (exit_backend || ret < 0)
1326 sk = accept(listen_sk, (struct sockaddr *) &addr6, &len);
1328 sk = accept(listen_sk, (struct sockaddr *) &addr, &len);
1331 log_err("fio: accept: %s\n", strerror(errno));
1336 from = inet_ntop(AF_INET6, (struct sockaddr *) &addr6.sin6_addr, buf, sizeof(buf));
1338 from = inet_ntop(AF_INET, (struct sockaddr *) &addr.sin_addr, buf, sizeof(buf));
1340 dprint(FD_NET, "server: connect from %s\n", from);
1342 sk_out = smalloc(sizeof(*sk_out));
1344 INIT_FLIST_HEAD(&sk_out->list);
1345 __fio_mutex_init(&sk_out->lock, FIO_MUTEX_UNLOCKED);
1346 __fio_mutex_init(&sk_out->wait, FIO_MUTEX_LOCKED);
1347 __fio_mutex_init(&sk_out->xmit, FIO_MUTEX_UNLOCKED);
1352 fio_server_add_conn_pid(&conn_list, pid);
1356 /* if error, it's already logged, non-fatal */
1357 get_my_addr_str(sk);
1360 * Assign sk_out here, it'll be dropped in handle_connection()
1361 * since that function calls _exit() when done
1363 sk_out_assign(sk_out);
1364 handle_connection(sk_out);
1370 int fio_server_text_output(int level, const char *buf, size_t len)
1372 struct sk_out *sk_out = pthread_getspecific(sk_out_key);
1373 struct cmd_text_pdu *pdu;
1377 if (!sk_out || sk_out->sk == -1)
1380 tlen = sizeof(*pdu) + len;
1383 pdu->level = __cpu_to_le32(level);
1384 pdu->buf_len = __cpu_to_le32(len);
1386 gettimeofday(&tv, NULL);
1387 pdu->log_sec = __cpu_to_le64(tv.tv_sec);
1388 pdu->log_usec = __cpu_to_le64(tv.tv_usec);
1390 memcpy(pdu->buf, buf, len);
1392 fio_net_queue_cmd(FIO_NET_CMD_TEXT, pdu, tlen, NULL, SK_F_COPY);
1397 static void convert_io_stat(struct io_stat *dst, struct io_stat *src)
1399 dst->max_val = cpu_to_le64(src->max_val);
1400 dst->min_val = cpu_to_le64(src->min_val);
1401 dst->samples = cpu_to_le64(src->samples);
1404 * Encode to IEEE 754 for network transfer
1406 dst->mean.u.i = cpu_to_le64(fio_double_to_uint64(src->mean.u.f));
1407 dst->S.u.i = cpu_to_le64(fio_double_to_uint64(src->S.u.f));
1410 static void convert_gs(struct group_run_stats *dst, struct group_run_stats *src)
1414 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1415 dst->max_run[i] = cpu_to_le64(src->max_run[i]);
1416 dst->min_run[i] = cpu_to_le64(src->min_run[i]);
1417 dst->max_bw[i] = cpu_to_le64(src->max_bw[i]);
1418 dst->min_bw[i] = cpu_to_le64(src->min_bw[i]);
1419 dst->io_kb[i] = cpu_to_le64(src->io_kb[i]);
1420 dst->agg[i] = cpu_to_le64(src->agg[i]);
1423 dst->kb_base = cpu_to_le32(src->kb_base);
1424 dst->unit_base = cpu_to_le32(src->unit_base);
1425 dst->groupid = cpu_to_le32(src->groupid);
1426 dst->unified_rw_rep = cpu_to_le32(src->unified_rw_rep);
1430 * Send a CMD_TS, which packs struct thread_stat and group_run_stats
1431 * into a single payload.
1433 void fio_server_send_ts(struct thread_stat *ts, struct group_run_stats *rs)
1435 struct cmd_ts_pdu p;
1438 dprint(FD_NET, "server sending end stats\n");
1440 memset(&p, 0, sizeof(p));
1442 strncpy(p.ts.name, ts->name, FIO_JOBNAME_SIZE - 1);
1443 strncpy(p.ts.verror, ts->verror, FIO_VERROR_SIZE - 1);
1444 strncpy(p.ts.description, ts->description, FIO_JOBDESC_SIZE - 1);
1446 p.ts.error = cpu_to_le32(ts->error);
1447 p.ts.thread_number = cpu_to_le32(ts->thread_number);
1448 p.ts.groupid = cpu_to_le32(ts->groupid);
1449 p.ts.pid = cpu_to_le32(ts->pid);
1450 p.ts.members = cpu_to_le32(ts->members);
1451 p.ts.unified_rw_rep = cpu_to_le32(ts->unified_rw_rep);
1453 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1454 convert_io_stat(&p.ts.clat_stat[i], &ts->clat_stat[i]);
1455 convert_io_stat(&p.ts.slat_stat[i], &ts->slat_stat[i]);
1456 convert_io_stat(&p.ts.lat_stat[i], &ts->lat_stat[i]);
1457 convert_io_stat(&p.ts.bw_stat[i], &ts->bw_stat[i]);
1460 p.ts.usr_time = cpu_to_le64(ts->usr_time);
1461 p.ts.sys_time = cpu_to_le64(ts->sys_time);
1462 p.ts.ctx = cpu_to_le64(ts->ctx);
1463 p.ts.minf = cpu_to_le64(ts->minf);
1464 p.ts.majf = cpu_to_le64(ts->majf);
1465 p.ts.clat_percentiles = cpu_to_le64(ts->clat_percentiles);
1466 p.ts.percentile_precision = cpu_to_le64(ts->percentile_precision);
1468 for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) {
1469 fio_fp64_t *src = &ts->percentile_list[i];
1470 fio_fp64_t *dst = &p.ts.percentile_list[i];
1472 dst->u.i = cpu_to_le64(fio_double_to_uint64(src->u.f));
1475 for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
1476 p.ts.io_u_map[i] = cpu_to_le32(ts->io_u_map[i]);
1477 p.ts.io_u_submit[i] = cpu_to_le32(ts->io_u_submit[i]);
1478 p.ts.io_u_complete[i] = cpu_to_le32(ts->io_u_complete[i]);
1481 for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) {
1482 p.ts.io_u_lat_u[i] = cpu_to_le32(ts->io_u_lat_u[i]);
1483 p.ts.io_u_lat_m[i] = cpu_to_le32(ts->io_u_lat_m[i]);
1486 for (i = 0; i < DDIR_RWDIR_CNT; i++)
1487 for (j = 0; j < FIO_IO_U_PLAT_NR; j++)
1488 p.ts.io_u_plat[i][j] = cpu_to_le32(ts->io_u_plat[i][j]);
1490 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1491 p.ts.total_io_u[i] = cpu_to_le64(ts->total_io_u[i]);
1492 p.ts.short_io_u[i] = cpu_to_le64(ts->short_io_u[i]);
1493 p.ts.drop_io_u[i] = cpu_to_le64(ts->drop_io_u[i]);
1496 p.ts.total_submit = cpu_to_le64(ts->total_submit);
1497 p.ts.total_complete = cpu_to_le64(ts->total_complete);
1499 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1500 p.ts.io_bytes[i] = cpu_to_le64(ts->io_bytes[i]);
1501 p.ts.runtime[i] = cpu_to_le64(ts->runtime[i]);
1504 p.ts.total_run_time = cpu_to_le64(ts->total_run_time);
1505 p.ts.continue_on_error = cpu_to_le16(ts->continue_on_error);
1506 p.ts.total_err_count = cpu_to_le64(ts->total_err_count);
1507 p.ts.first_error = cpu_to_le32(ts->first_error);
1508 p.ts.kb_base = cpu_to_le32(ts->kb_base);
1509 p.ts.unit_base = cpu_to_le32(ts->unit_base);
1511 p.ts.latency_depth = cpu_to_le32(ts->latency_depth);
1512 p.ts.latency_target = cpu_to_le64(ts->latency_target);
1513 p.ts.latency_window = cpu_to_le64(ts->latency_window);
1514 p.ts.latency_percentile.u.i = cpu_to_le64(fio_double_to_uint64(ts->latency_percentile.u.f));
1516 p.ts.nr_block_infos = le64_to_cpu(ts->nr_block_infos);
1517 for (i = 0; i < p.ts.nr_block_infos; i++)
1518 p.ts.block_infos[i] = le32_to_cpu(ts->block_infos[i]);
1520 convert_gs(&p.rs, rs);
1522 fio_net_queue_cmd(FIO_NET_CMD_TS, &p, sizeof(p), NULL, SK_F_COPY);
1525 void fio_server_send_gs(struct group_run_stats *rs)
1527 struct group_run_stats gs;
1529 dprint(FD_NET, "server sending group run stats\n");
1531 convert_gs(&gs, rs);
1532 fio_net_queue_cmd(FIO_NET_CMD_GS, &gs, sizeof(gs), NULL, SK_F_COPY);
1535 void fio_server_send_job_options(struct flist_head *opt_list,
1536 unsigned int groupid)
1538 struct cmd_job_option pdu;
1539 struct flist_head *entry;
1541 if (flist_empty(opt_list))
1544 flist_for_each(entry, opt_list) {
1545 struct print_option *p;
1548 p = flist_entry(entry, struct print_option, list);
1549 memset(&pdu, 0, sizeof(pdu));
1551 if (groupid == -1U) {
1552 pdu.global = __cpu_to_le16(1);
1556 pdu.groupid = cpu_to_le32(groupid);
1558 len = strlen(p->name);
1559 if (len >= sizeof(pdu.name)) {
1560 len = sizeof(pdu.name) - 1;
1561 pdu.truncated = __cpu_to_le16(1);
1563 memcpy(pdu.name, p->name, len);
1565 len = strlen(p->value);
1566 if (len >= sizeof(pdu.value)) {
1567 len = sizeof(pdu.value) - 1;
1568 pdu.truncated = __cpu_to_le16(1);
1570 memcpy(pdu.value, p->value, len);
1572 fio_net_queue_cmd(FIO_NET_CMD_JOB_OPT, &pdu, sizeof(pdu), NULL, SK_F_COPY);
1576 static void convert_agg(struct disk_util_agg *dst, struct disk_util_agg *src)
1580 for (i = 0; i < 2; i++) {
1581 dst->ios[i] = cpu_to_le64(src->ios[i]);
1582 dst->merges[i] = cpu_to_le64(src->merges[i]);
1583 dst->sectors[i] = cpu_to_le64(src->sectors[i]);
1584 dst->ticks[i] = cpu_to_le64(src->ticks[i]);
1587 dst->io_ticks = cpu_to_le64(src->io_ticks);
1588 dst->time_in_queue = cpu_to_le64(src->time_in_queue);
1589 dst->slavecount = cpu_to_le32(src->slavecount);
1590 dst->max_util.u.i = cpu_to_le64(fio_double_to_uint64(src->max_util.u.f));
1593 static void convert_dus(struct disk_util_stat *dst, struct disk_util_stat *src)
1597 dst->name[FIO_DU_NAME_SZ - 1] = '\0';
1598 strncpy((char *) dst->name, (char *) src->name, FIO_DU_NAME_SZ - 1);
1600 for (i = 0; i < 2; i++) {
1601 dst->s.ios[i] = cpu_to_le64(src->s.ios[i]);
1602 dst->s.merges[i] = cpu_to_le64(src->s.merges[i]);
1603 dst->s.sectors[i] = cpu_to_le64(src->s.sectors[i]);
1604 dst->s.ticks[i] = cpu_to_le64(src->s.ticks[i]);
1607 dst->s.io_ticks = cpu_to_le64(src->s.io_ticks);
1608 dst->s.time_in_queue = cpu_to_le64(src->s.time_in_queue);
1609 dst->s.msec = cpu_to_le64(src->s.msec);
1612 void fio_server_send_du(void)
1614 struct disk_util *du;
1615 struct flist_head *entry;
1616 struct cmd_du_pdu pdu;
1618 dprint(FD_NET, "server: sending disk_util %d\n", !flist_empty(&disk_list));
1620 memset(&pdu, 0, sizeof(pdu));
1622 flist_for_each(entry, &disk_list) {
1623 du = flist_entry(entry, struct disk_util, list);
1625 convert_dus(&pdu.dus, &du->dus);
1626 convert_agg(&pdu.agg, &du->agg);
1628 fio_net_queue_cmd(FIO_NET_CMD_DU, &pdu, sizeof(pdu), NULL, SK_F_COPY);
1632 static int fio_append_iolog_gz(struct sk_entry *first, struct io_log *log)
1636 struct sk_entry *entry;
1641 * Dirty - since the log is potentially huge, compress it into
1642 * FIO_SERVER_MAX_FRAGMENT_PDU chunks and let the receiving
1643 * side defragment it.
1645 out_pdu = malloc(FIO_SERVER_MAX_FRAGMENT_PDU);
1647 stream.zalloc = Z_NULL;
1648 stream.zfree = Z_NULL;
1649 stream.opaque = Z_NULL;
1651 if (deflateInit(&stream, Z_DEFAULT_COMPRESSION) != Z_OK) {
1656 stream.next_in = (void *) log->log;
1657 stream.avail_in = log->nr_samples * log_entry_sz(log);
1660 unsigned int this_len;
1662 stream.avail_out = FIO_SERVER_MAX_FRAGMENT_PDU;
1663 stream.next_out = out_pdu;
1664 ret = deflate(&stream, Z_FINISH);
1665 /* may be Z_OK, or Z_STREAM_END */
1669 this_len = FIO_SERVER_MAX_FRAGMENT_PDU - stream.avail_out;
1671 entry = fio_net_prep_cmd(FIO_NET_CMD_IOLOG, out_pdu, this_len,
1672 NULL, SK_F_VEC | SK_F_INLINE | SK_F_FREE);
1674 flist_add_tail(&entry->list, &first->next);
1675 } while (stream.avail_in);
1678 deflateEnd(&stream);
1685 static int fio_append_gz_chunks(struct sk_entry *first, struct io_log *log)
1687 struct sk_entry *entry;
1688 struct flist_head *node;
1690 pthread_mutex_lock(&log->chunk_lock);
1691 flist_for_each(node, &log->chunk_list) {
1692 struct iolog_compress *c;
1694 c = flist_entry(node, struct iolog_compress, list);
1695 entry = fio_net_prep_cmd(FIO_NET_CMD_IOLOG, c->buf, c->len,
1696 NULL, SK_F_VEC | SK_F_INLINE);
1697 flist_add_tail(&entry->list, &first->next);
1699 pthread_mutex_unlock(&log->chunk_lock);
1704 static int fio_append_text_log(struct sk_entry *first, struct io_log *log)
1706 struct sk_entry *entry;
1707 size_t size = log->nr_samples * log_entry_sz(log);
1709 entry = fio_net_prep_cmd(FIO_NET_CMD_IOLOG, log->log, size,
1710 NULL, SK_F_VEC | SK_F_INLINE);
1711 flist_add_tail(&entry->list, &first->next);
1715 int fio_send_iolog(struct thread_data *td, struct io_log *log, const char *name)
1717 struct cmd_iolog_pdu pdu;
1718 struct sk_entry *first;
1721 pdu.nr_samples = cpu_to_le64(log->nr_samples);
1722 pdu.thread_number = cpu_to_le32(td->thread_number);
1723 pdu.log_type = cpu_to_le32(log->log_type);
1725 if (!flist_empty(&log->chunk_list))
1726 pdu.compressed = __cpu_to_le32(STORE_COMPRESSED);
1728 pdu.compressed = __cpu_to_le32(XMIT_COMPRESSED);
1732 strncpy((char *) pdu.name, name, FIO_NET_NAME_MAX);
1733 pdu.name[FIO_NET_NAME_MAX - 1] = '\0';
1736 * We can't do this for a pre-compressed log, but for that case,
1737 * log->nr_samples is zero anyway.
1739 for (i = 0; i < log->nr_samples; i++) {
1740 struct io_sample *s = get_sample(log, i);
1742 s->time = cpu_to_le64(s->time);
1743 s->val = cpu_to_le64(s->val);
1744 s->__ddir = cpu_to_le32(s->__ddir);
1745 s->bs = cpu_to_le32(s->bs);
1747 if (log->log_offset) {
1748 struct io_sample_offset *so = (void *) s;
1750 so->offset = cpu_to_le64(so->offset);
1755 * Assemble header entry first
1757 first = fio_net_prep_cmd(FIO_NET_CMD_IOLOG, &pdu, sizeof(pdu), NULL, SK_F_VEC | SK_F_INLINE | SK_F_COPY);
1760 * Now append actual log entries. If log compression was enabled on
1761 * the job, just send out the compressed chunks directly. If we
1762 * have a plain log, compress if we can, then send. Otherwise, send
1763 * the plain text output.
1765 if (!flist_empty(&log->chunk_list))
1766 ret = fio_append_gz_chunks(first, log);
1768 ret = fio_append_iolog_gz(first, log);
1770 ret = fio_append_text_log(first, log);
1772 fio_net_queue_entry(first);
1776 void fio_server_send_add_job(struct thread_data *td)
1778 struct cmd_add_job_pdu pdu;
1780 memset(&pdu, 0, sizeof(pdu));
1781 pdu.thread_number = cpu_to_le32(td->thread_number);
1782 pdu.groupid = cpu_to_le32(td->groupid);
1783 convert_thread_options_to_net(&pdu.top, &td->o);
1785 fio_net_queue_cmd(FIO_NET_CMD_ADD_JOB, &pdu, sizeof(pdu), NULL,
1789 void fio_server_send_start(struct thread_data *td)
1791 struct sk_out *sk_out = pthread_getspecific(sk_out_key);
1793 assert(sk_out->sk != -1);
1795 fio_net_queue_cmd(FIO_NET_CMD_SERVER_START, NULL, 0, 0, SK_F_SIMPLE);
1798 int fio_server_get_verify_state(const char *name, int threadnumber,
1799 void **datap, int *version)
1801 struct thread_io_list *s;
1802 struct cmd_sendfile out;
1803 struct cmd_reply *rep;
1808 dprint(FD_NET, "server: request verify state\n");
1810 rep = smalloc(sizeof(*rep));
1812 log_err("fio: smalloc pool too small\n");
1816 __fio_mutex_init(&rep->lock, FIO_MUTEX_LOCKED);
1820 verify_state_gen_name((char *) out.path, sizeof(out.path), name, me,
1822 tag = (uint64_t) (uintptr_t) rep;
1823 fio_net_queue_cmd(FIO_NET_CMD_SENDFILE, &out, sizeof(out), &tag,
1827 * Wait for the backend to receive the reply
1829 if (fio_mutex_down_timeout(&rep->lock, 10000)) {
1830 log_err("fio: timed out waiting for reply\n");
1836 log_err("fio: failure on receiving state file %s: %s\n",
1837 out.path, strerror(rep->error));
1842 fio_net_queue_quit();
1847 * The format is verify_state_hdr, then thread_io_list. Verify
1848 * the header, and the thread_io_list checksum
1850 s = rep->data + sizeof(struct verify_state_hdr);
1851 if (verify_state_hdr(rep->data, s, version)) {
1857 * Don't need the header from now, copy just the thread_io_list
1860 rep->size -= sizeof(struct verify_state_hdr);
1861 data = malloc(rep->size);
1862 memcpy(data, s, rep->size);
1866 __fio_mutex_remove(&rep->lock);
1871 static int fio_init_server_ip(void)
1873 struct sockaddr *addr;
1880 sk = socket(AF_INET6, SOCK_STREAM, 0);
1882 sk = socket(AF_INET, SOCK_STREAM, 0);
1885 log_err("fio: socket: %s\n", strerror(errno));
1890 if (setsockopt(sk, SOL_SOCKET, SO_REUSEADDR, (void *)&opt, sizeof(opt)) < 0) {
1891 log_err("fio: setsockopt(REUSEADDR): %s\n", strerror(errno));
1896 if (setsockopt(sk, SOL_SOCKET, SO_REUSEPORT, &opt, sizeof(opt)) < 0) {
1897 log_err("fio: setsockopt(REUSEPORT): %s\n", strerror(errno));
1904 const void *src = &saddr_in6.sin6_addr;
1906 addr = (struct sockaddr *) &saddr_in6;
1907 socklen = sizeof(saddr_in6);
1908 saddr_in6.sin6_family = AF_INET6;
1909 str = inet_ntop(AF_INET6, src, buf, sizeof(buf));
1911 const void *src = &saddr_in.sin_addr;
1913 addr = (struct sockaddr *) &saddr_in;
1914 socklen = sizeof(saddr_in);
1915 saddr_in.sin_family = AF_INET;
1916 str = inet_ntop(AF_INET, src, buf, sizeof(buf));
1919 if (bind(sk, addr, socklen) < 0) {
1920 log_err("fio: bind: %s\n", strerror(errno));
1921 log_info("fio: failed with IPv%c %s\n", use_ipv6 ? '6' : '4', str);
1929 static int fio_init_server_sock(void)
1931 struct sockaddr_un addr;
1936 sk = socket(AF_UNIX, SOCK_STREAM, 0);
1938 log_err("fio: socket: %s\n", strerror(errno));
1944 memset(&addr, 0, sizeof(addr));
1945 addr.sun_family = AF_UNIX;
1946 strncpy(addr.sun_path, bind_sock, sizeof(addr.sun_path) - 1);
1948 len = sizeof(addr.sun_family) + strlen(bind_sock) + 1;
1950 if (bind(sk, (struct sockaddr *) &addr, len) < 0) {
1951 log_err("fio: bind: %s\n", strerror(errno));
1960 static int fio_init_server_connection(void)
1965 dprint(FD_NET, "starting server\n");
1968 sk = fio_init_server_ip();
1970 sk = fio_init_server_sock();
1975 memset(bind_str, 0, sizeof(bind_str));
1984 src = &saddr_in6.sin6_addr;
1987 src = &saddr_in.sin_addr;
1990 p = (char *) inet_ntop(af, src, bind_str, sizeof(bind_str));
1992 sprintf(port, ",%u", fio_net_port);
1996 strncpy(bind_str, port, sizeof(bind_str) - 1);
1998 strncpy(bind_str, bind_sock, sizeof(bind_str) - 1);
2000 log_info("fio: server listening on %s\n", bind_str);
2002 if (listen(sk, 4) < 0) {
2003 log_err("fio: listen: %s\n", strerror(errno));
2011 int fio_server_parse_host(const char *host, int ipv6, struct in_addr *inp,
2012 struct in6_addr *inp6)
2018 ret = inet_pton(AF_INET6, host, inp6);
2020 ret = inet_pton(AF_INET, host, inp);
2023 struct addrinfo hints, *res;
2025 memset(&hints, 0, sizeof(hints));
2026 hints.ai_family = ipv6 ? AF_INET6 : AF_INET;
2027 hints.ai_socktype = SOCK_STREAM;
2029 ret = getaddrinfo(host, NULL, &hints, &res);
2031 log_err("fio: failed to resolve <%s> (%s)\n", host,
2037 memcpy(inp6, &((struct sockaddr_in6 *) res->ai_addr)->sin6_addr, sizeof(*inp6));
2039 memcpy(inp, &((struct sockaddr_in *) res->ai_addr)->sin_addr, sizeof(*inp));
2049 * Parse a host/ip/port string. Reads from 'str'.
2054 * *ptr is the host, *port is the port, inp is the destination.
2056 * *ptr is the host, *port is the port, inp6 is the dest, and *ipv6 is 1.
2057 * For local domain sockets:
2058 * *ptr is the filename, *is_sock is 1.
2060 int fio_server_parse_string(const char *str, char **ptr, int *is_sock,
2061 int *port, struct in_addr *inp,
2062 struct in6_addr *inp6, int *ipv6)
2064 const char *host = str;
2070 *port = fio_net_port;
2073 if (!strncmp(str, "sock:", 5)) {
2074 *ptr = strdup(str + 5);
2081 * Is it ip:<ip or host>:port
2083 if (!strncmp(host, "ip:", 3))
2085 else if (!strncmp(host, "ip4:", 4))
2087 else if (!strncmp(host, "ip6:", 4)) {
2090 } else if (host[0] == ':') {
2091 /* String is :port */
2094 if (!lport || lport > 65535) {
2095 log_err("fio: bad server port %u\n", lport);
2098 /* no hostname given, we are done */
2104 * If no port seen yet, check if there's a last ',' at the end
2107 portp = strchr(host, ',');
2111 lport = atoi(portp);
2112 if (!lport || lport > 65535) {
2113 log_err("fio: bad server port %u\n", lport);
2125 *ptr = strdup(host);
2127 if (fio_server_parse_host(*ptr, *ipv6, inp, inp6)) {
2134 *port = fio_net_port;
2140 * Server arg should be one of:
2142 * sock:/path/to/socket
2146 * Where sock uses unix domain sockets, and ip binds the server to
2147 * a specific interface. If no arguments are given to the server, it
2148 * uses IP and binds to 0.0.0.0.
2151 static int fio_handle_server_arg(void)
2153 int port = fio_net_port;
2154 int is_sock, ret = 0;
2156 saddr_in.sin_addr.s_addr = htonl(INADDR_ANY);
2158 if (!fio_server_arg)
2161 ret = fio_server_parse_string(fio_server_arg, &bind_sock, &is_sock,
2162 &port, &saddr_in.sin_addr,
2163 &saddr_in6.sin6_addr, &use_ipv6);
2165 if (!is_sock && bind_sock) {
2171 fio_net_port = port;
2172 saddr_in.sin_port = htons(port);
2173 saddr_in6.sin6_port = htons(port);
2177 static void sig_int(int sig)
2183 static void set_sig_handlers(void)
2185 struct sigaction act;
2187 memset(&act, 0, sizeof(act));
2188 act.sa_handler = sig_int;
2189 act.sa_flags = SA_RESTART;
2190 sigaction(SIGINT, &act, NULL);
2193 void fio_server_destroy_sk_key(void)
2195 pthread_key_delete(sk_out_key);
2198 int fio_server_create_sk_key(void)
2200 if (pthread_key_create(&sk_out_key, NULL)) {
2201 log_err("fio: can't create sk_out backend key\n");
2205 pthread_setspecific(sk_out_key, NULL);
2209 static int fio_server(void)
2213 dprint(FD_NET, "starting server\n");
2215 if (fio_handle_server_arg())
2218 sk = fio_init_server_connection();
2224 ret = accept_loop(sk);
2228 if (fio_server_arg) {
2229 free(fio_server_arg);
2230 fio_server_arg = NULL;
2238 void fio_server_got_signal(int signal)
2240 struct sk_out *sk_out = pthread_getspecific(sk_out_key);
2244 if (signal == SIGPIPE)
2247 log_info("\nfio: terminating on signal %d\n", signal);
2252 static int check_existing_pidfile(const char *pidfile)
2259 if (stat(pidfile, &sb))
2262 f = fopen(pidfile, "r");
2266 if (fread(buf, sb.st_size, 1, f) <= 0) {
2273 if (kill(pid, SIGCONT) < 0)
2274 return errno != ESRCH;
2279 static int write_pid(pid_t pid, const char *pidfile)
2283 fpid = fopen(pidfile, "w");
2285 log_err("fio: failed opening pid file %s\n", pidfile);
2289 fprintf(fpid, "%u\n", (unsigned int) pid);
2295 * If pidfile is specified, background us.
2297 int fio_start_server(char *pidfile)
2304 WSAStartup(MAKEWORD(2, 2), &wsd);
2308 return fio_server();
2310 if (check_existing_pidfile(pidfile)) {
2311 log_err("fio: pidfile %s exists and server appears alive\n",
2319 log_err("fio: failed server fork: %s", strerror(errno));
2323 ret = write_pid(pid, pidfile);
2329 openlog("fio", LOG_NDELAY|LOG_NOWAIT|LOG_PID, LOG_USER);
2331 close(STDIN_FILENO);
2332 close(STDOUT_FILENO);
2333 close(STDERR_FILENO);
2345 void fio_server_set_arg(const char *arg)
2347 fio_server_arg = strdup(arg);