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;
43 struct flist_head list;
49 struct flist_head next;
54 struct fio_mutex *lock;
55 struct flist_head list;
56 struct fio_mutex *wait;
59 static char *fio_server_arg;
60 static char *bind_sock;
61 static struct sockaddr_in saddr_in;
62 static struct sockaddr_in6 saddr_in6;
65 static unsigned int has_zlib = 1;
67 static unsigned int has_zlib = 0;
69 static unsigned int use_zlib;
72 static pthread_key_t sk_out_key;
74 struct fio_fork_item {
75 struct flist_head list;
83 struct fio_mutex lock;
89 static const char *fio_server_ops[FIO_NET_CMD_NR] = {
114 static void sk_lock(struct sk_out *sk_out)
116 fio_mutex_down(sk_out->lock);
119 static void sk_unlock(struct sk_out *sk_out)
121 fio_mutex_up(sk_out->lock);
124 const char *fio_server_op(unsigned int op)
128 if (op < FIO_NET_CMD_NR)
129 return fio_server_ops[op];
131 sprintf(buf, "UNKNOWN/%d", op);
135 static ssize_t iov_total_len(const struct iovec *iov, int count)
147 static int fio_sendv_data(int sk, struct iovec *iov, int count)
149 ssize_t total_len = iov_total_len(iov, count);
153 ret = writev(sk, iov, count);
160 if (ret >= iov->iov_len) {
165 iov->iov_base += ret;
171 else if (errno == EAGAIN || errno == EINTR)
175 } while (!exit_backend);
183 int fio_send_data(int sk, const void *p, unsigned int len)
185 struct iovec iov = { .iov_base = (void *) p, .iov_len = len };
187 assert(len <= sizeof(struct fio_net_cmd) + FIO_SERVER_MAX_FRAGMENT_PDU);
189 return fio_sendv_data(sk, &iov, 1);
192 int fio_recv_data(int sk, void *p, unsigned int len)
195 int ret = recv(sk, p, len, MSG_WAITALL);
205 else if (errno == EAGAIN || errno == EINTR)
209 } while (!exit_backend);
217 static int verify_convert_cmd(struct fio_net_cmd *cmd)
221 cmd->cmd_crc16 = le16_to_cpu(cmd->cmd_crc16);
222 cmd->pdu_crc16 = le16_to_cpu(cmd->pdu_crc16);
224 crc = fio_crc16(cmd, FIO_NET_CMD_CRC_SZ);
225 if (crc != cmd->cmd_crc16) {
226 log_err("fio: server bad crc on command (got %x, wanted %x)\n",
227 cmd->cmd_crc16, crc);
231 cmd->version = le16_to_cpu(cmd->version);
232 cmd->opcode = le16_to_cpu(cmd->opcode);
233 cmd->flags = le32_to_cpu(cmd->flags);
234 cmd->tag = le64_to_cpu(cmd->tag);
235 cmd->pdu_len = le32_to_cpu(cmd->pdu_len);
237 switch (cmd->version) {
241 log_err("fio: bad server cmd version %d\n", cmd->version);
245 if (cmd->pdu_len > FIO_SERVER_MAX_FRAGMENT_PDU) {
246 log_err("fio: command payload too large: %u\n", cmd->pdu_len);
254 * Read (and defragment, if necessary) incoming commands
256 struct fio_net_cmd *fio_net_recv_cmd(int sk)
258 struct fio_net_cmd cmd, *tmp, *cmdret = NULL;
259 size_t cmd_size = 0, pdu_offset = 0;
265 ret = fio_recv_data(sk, &cmd, sizeof(cmd));
269 /* We have a command, verify it and swap if need be */
270 ret = verify_convert_cmd(&cmd);
275 /* if this is text, add room for \0 at the end */
276 cmd_size = sizeof(cmd) + cmd.pdu_len + 1;
279 cmd_size += cmd.pdu_len;
281 if (cmd_size / 1024 > FIO_SERVER_MAX_CMD_MB * 1024) {
282 log_err("fio: cmd+pdu too large (%llu)\n", (unsigned long long) cmd_size);
287 tmp = realloc(cmdret, cmd_size);
289 log_err("fio: server failed allocating cmd\n");
296 memcpy(cmdret, &cmd, sizeof(cmd));
297 else if (cmdret->opcode != cmd.opcode) {
298 log_err("fio: fragment opcode mismatch (%d != %d)\n",
299 cmdret->opcode, cmd.opcode);
307 /* There's payload, get it */
308 pdu = (void *) cmdret->payload + pdu_offset;
309 ret = fio_recv_data(sk, pdu, cmd.pdu_len);
313 /* Verify payload crc */
314 crc = fio_crc16(pdu, cmd.pdu_len);
315 if (crc != cmd.pdu_crc16) {
316 log_err("fio: server bad crc on payload ");
317 log_err("(got %x, wanted %x)\n", cmd.pdu_crc16, crc);
322 pdu_offset += cmd.pdu_len;
324 cmdret->pdu_len += cmd.pdu_len;
326 } while (cmd.flags & FIO_NET_CMD_F_MORE);
332 /* zero-terminate text input */
333 if (cmdret->pdu_len) {
334 if (cmdret->opcode == FIO_NET_CMD_TEXT) {
335 struct cmd_text_pdu *__pdu = (struct cmd_text_pdu *) cmdret->payload;
336 char *buf = (char *) __pdu->buf;
338 buf[__pdu->buf_len] = '\0';
339 } else if (cmdret->opcode == FIO_NET_CMD_JOB) {
340 struct cmd_job_pdu *__pdu = (struct cmd_job_pdu *) cmdret->payload;
341 char *buf = (char *) __pdu->buf;
342 int len = le32_to_cpu(__pdu->buf_len);
348 /* frag flag is internal */
349 cmdret->flags &= ~FIO_NET_CMD_F_MORE;
355 static void add_reply(uint64_t tag, struct flist_head *list)
357 struct fio_net_cmd_reply *reply;
359 reply = (struct fio_net_cmd_reply *) (uintptr_t) tag;
360 flist_add_tail(&reply->list, list);
363 static uint64_t alloc_reply(uint64_t tag, uint16_t opcode)
365 struct fio_net_cmd_reply *reply;
367 reply = calloc(1, sizeof(*reply));
368 INIT_FLIST_HEAD(&reply->list);
369 fio_gettime(&reply->tv, NULL);
370 reply->saved_tag = tag;
371 reply->opcode = opcode;
373 return (uintptr_t) reply;
376 static void free_reply(uint64_t tag)
378 struct fio_net_cmd_reply *reply;
380 reply = (struct fio_net_cmd_reply *) (uintptr_t) tag;
384 void fio_net_cmd_crc_pdu(struct fio_net_cmd *cmd, const void *pdu)
388 cmd->cmd_crc16 = __cpu_to_le16(fio_crc16(cmd, FIO_NET_CMD_CRC_SZ));
390 pdu_len = le32_to_cpu(cmd->pdu_len);
391 cmd->pdu_crc16 = __cpu_to_le16(fio_crc16(pdu, pdu_len));
394 void fio_net_cmd_crc(struct fio_net_cmd *cmd)
396 fio_net_cmd_crc_pdu(cmd, cmd->payload);
399 int fio_net_send_cmd(int fd, uint16_t opcode, const void *buf, off_t size,
400 uint64_t *tagptr, struct flist_head *list)
402 struct fio_net_cmd *cmd = NULL;
403 size_t this_len, cur_len = 0;
409 tag = *tagptr = alloc_reply(*tagptr, opcode);
411 tag = tagptr ? *tagptr : 0;
415 if (this_len > FIO_SERVER_MAX_FRAGMENT_PDU)
416 this_len = FIO_SERVER_MAX_FRAGMENT_PDU;
418 if (!cmd || cur_len < sizeof(*cmd) + this_len) {
422 cur_len = sizeof(*cmd) + this_len;
423 cmd = malloc(cur_len);
426 fio_init_net_cmd(cmd, opcode, buf, this_len, tag);
429 cmd->flags = __cpu_to_le32(FIO_NET_CMD_F_MORE);
431 fio_net_cmd_crc(cmd);
433 ret = fio_send_data(fd, cmd, sizeof(*cmd) + this_len);
436 } while (!ret && size);
442 add_reply(tag, list);
451 struct sk_entry *fio_net_prep_cmd(uint16_t opcode, void *buf, off_t size,
452 uint64_t *tagptr, int flags)
454 struct sk_entry *entry;
456 entry = smalloc(sizeof(*entry));
457 INIT_FLIST_HEAD(&entry->next);
458 entry->opcode = opcode;
459 if (flags & SK_F_COPY) {
460 entry->buf = smalloc(size);
461 memcpy(entry->buf, buf, size);
465 entry->tagptr = tagptr;
466 entry->flags = flags;
471 static void fio_net_queue_entry(struct sk_entry *entry)
473 struct sk_out *sk_out = pthread_getspecific(sk_out_key);
476 flist_add_tail(&entry->list, &sk_out->list);
479 fio_mutex_up(sk_out->wait);
482 static int fio_net_queue_cmd(uint16_t opcode, void *buf, off_t size,
483 uint64_t *tagptr, int flags)
485 struct sk_entry *entry;
487 entry = fio_net_prep_cmd(opcode, buf, size, tagptr, flags);
488 fio_net_queue_entry(entry);
492 static int fio_net_send_simple_stack_cmd(int sk, uint16_t opcode, uint64_t tag)
494 struct fio_net_cmd cmd;
496 fio_init_net_cmd(&cmd, opcode, NULL, 0, tag);
497 fio_net_cmd_crc(&cmd);
499 return fio_send_data(sk, &cmd, sizeof(cmd));
503 * If 'list' is non-NULL, then allocate and store the sent command for
504 * later verification.
506 int fio_net_send_simple_cmd(int sk, uint16_t opcode, uint64_t tag,
507 struct flist_head *list)
512 tag = alloc_reply(tag, opcode);
514 ret = fio_net_send_simple_stack_cmd(sk, opcode, tag);
523 add_reply(tag, list);
528 static int fio_net_queue_quit(void)
530 dprint(FD_NET, "server: sending quit\n");
532 return fio_net_queue_cmd(FIO_NET_CMD_QUIT, NULL, 0, 0, SK_F_SIMPLE);
535 int fio_net_send_quit(int sk)
537 dprint(FD_NET, "server: sending quit\n");
539 return fio_net_send_simple_cmd(sk, FIO_NET_CMD_QUIT, 0, NULL);
542 static int fio_net_send_ack(struct fio_net_cmd *cmd, int error, int signal)
544 struct cmd_end_pdu epdu;
550 epdu.error = __cpu_to_le32(error);
551 epdu.signal = __cpu_to_le32(signal);
552 return fio_net_queue_cmd(FIO_NET_CMD_STOP, &epdu, sizeof(epdu), &tag, SK_F_COPY);
555 static int fio_net_queue_stop(int error, int signal)
557 dprint(FD_NET, "server: sending stop (%d, %d)\n", error, signal);
558 return fio_net_send_ack(NULL, error, signal);
561 static void fio_server_add_fork_item(pid_t pid, struct flist_head *list)
563 struct fio_fork_item *ffi;
565 ffi = malloc(sizeof(*ffi));
570 flist_add_tail(&ffi->list, list);
573 static void fio_server_add_conn_pid(struct flist_head *conn_list, pid_t pid)
575 dprint(FD_NET, "server: forked off connection job (pid=%u)\n", (int) pid);
576 fio_server_add_fork_item(pid, conn_list);
579 static void fio_server_add_job_pid(struct flist_head *job_list, pid_t pid)
581 dprint(FD_NET, "server: forked off job job (pid=%u)\n", (int) pid);
582 fio_server_add_fork_item(pid, job_list);
585 static void fio_server_check_fork_item(struct fio_fork_item *ffi)
589 ret = waitpid(ffi->pid, &status, WNOHANG);
591 if (errno == ECHILD) {
592 log_err("fio: connection pid %u disappeared\n", (int) ffi->pid);
595 log_err("fio: waitpid: %s\n", strerror(errno));
596 } else if (ret == ffi->pid) {
597 if (WIFSIGNALED(status)) {
598 ffi->signal = WTERMSIG(status);
601 if (WIFEXITED(status)) {
602 if (WEXITSTATUS(status))
603 ffi->exitval = WEXITSTATUS(status);
609 static void fio_server_fork_item_done(struct fio_fork_item *ffi, bool stop)
611 dprint(FD_NET, "pid %u exited, sig=%u, exitval=%d\n", (int) ffi->pid, ffi->signal, ffi->exitval);
614 * Fold STOP and QUIT...
617 fio_net_queue_stop(ffi->exitval, ffi->signal);
618 fio_net_queue_quit();
621 flist_del(&ffi->list);
625 static void fio_server_check_fork_items(struct flist_head *list, bool stop)
627 struct flist_head *entry, *tmp;
628 struct fio_fork_item *ffi;
630 flist_for_each_safe(entry, tmp, list) {
631 ffi = flist_entry(entry, struct fio_fork_item, list);
633 fio_server_check_fork_item(ffi);
636 fio_server_fork_item_done(ffi, stop);
640 static void fio_server_check_jobs(struct flist_head *job_list)
642 fio_server_check_fork_items(job_list, true);
645 static void fio_server_check_conns(struct flist_head *conn_list)
647 fio_server_check_fork_items(conn_list, false);
650 static int handle_load_file_cmd(struct fio_net_cmd *cmd)
652 struct cmd_load_file_pdu *pdu = (struct cmd_load_file_pdu *) cmd->payload;
653 void *file_name = pdu->file;
654 struct cmd_start_pdu spdu;
656 dprint(FD_NET, "server: loading local file %s\n", (char *) file_name);
658 pdu->name_len = le16_to_cpu(pdu->name_len);
659 pdu->client_type = le16_to_cpu(pdu->client_type);
661 if (parse_jobs_ini(file_name, 0, 0, pdu->client_type)) {
662 fio_net_queue_quit();
666 spdu.jobs = cpu_to_le32(thread_number);
667 spdu.stat_outputs = cpu_to_le32(stat_number);
668 fio_net_queue_cmd(FIO_NET_CMD_START, &spdu, sizeof(spdu), NULL, SK_F_COPY);
672 static int handle_run_cmd(struct sk_out *sk_out, struct flist_head *job_list,
673 struct fio_net_cmd *cmd)
675 struct backend_data data;
684 fio_server_add_job_pid(job_list, pid);
688 data.key = sk_out_key;
690 //pthread_setspecific(sk_out_key, sk_out);
691 ret = fio_backend(&data);
696 static int handle_job_cmd(struct fio_net_cmd *cmd)
698 struct cmd_job_pdu *pdu = (struct cmd_job_pdu *) cmd->payload;
699 void *buf = pdu->buf;
700 struct cmd_start_pdu spdu;
702 pdu->buf_len = le32_to_cpu(pdu->buf_len);
703 pdu->client_type = le32_to_cpu(pdu->client_type);
705 if (parse_jobs_ini(buf, 1, 0, pdu->client_type)) {
706 fio_net_queue_quit();
710 spdu.jobs = cpu_to_le32(thread_number);
711 spdu.stat_outputs = cpu_to_le32(stat_number);
713 fio_net_queue_cmd(FIO_NET_CMD_START, &spdu, sizeof(spdu), NULL, SK_F_COPY);
717 static int handle_jobline_cmd(struct fio_net_cmd *cmd)
719 void *pdu = cmd->payload;
720 struct cmd_single_line_pdu *cslp;
721 struct cmd_line_pdu *clp;
722 unsigned long offset;
723 struct cmd_start_pdu spdu;
728 clp->lines = le16_to_cpu(clp->lines);
729 clp->client_type = le16_to_cpu(clp->client_type);
730 argv = malloc(clp->lines * sizeof(char *));
731 offset = sizeof(*clp);
733 dprint(FD_NET, "server: %d command line args\n", clp->lines);
735 for (i = 0; i < clp->lines; i++) {
737 argv[i] = (char *) cslp->text;
739 offset += sizeof(*cslp) + le16_to_cpu(cslp->len);
740 dprint(FD_NET, "server: %d: %s\n", i, argv[i]);
743 if (parse_cmd_line(clp->lines, argv, clp->client_type)) {
744 fio_net_queue_quit();
751 spdu.jobs = cpu_to_le32(thread_number);
752 spdu.stat_outputs = cpu_to_le32(stat_number);
754 fio_net_queue_cmd(FIO_NET_CMD_START, &spdu, sizeof(spdu), NULL, SK_F_COPY);
758 static int handle_probe_cmd(struct fio_net_cmd *cmd)
760 struct cmd_client_probe_pdu *pdu = (struct cmd_client_probe_pdu *) cmd->payload;
761 struct cmd_probe_reply_pdu probe;
762 uint64_t tag = cmd->tag;
764 dprint(FD_NET, "server: sending probe reply\n");
766 strcpy(me, (char *) pdu->server);
768 memset(&probe, 0, sizeof(probe));
769 gethostname((char *) probe.hostname, sizeof(probe.hostname));
770 #ifdef CONFIG_BIG_ENDIAN
773 strncpy((char *) probe.fio_version, fio_version_string, sizeof(probe.fio_version));
776 probe.arch = FIO_ARCH;
777 probe.bpp = sizeof(void *);
778 probe.cpus = __cpu_to_le32(cpus_online());
781 * If the client supports compression and we do too, then enable it
783 if (has_zlib && le64_to_cpu(pdu->flags) & FIO_PROBE_FLAG_ZLIB) {
784 probe.flags = __cpu_to_le64(FIO_PROBE_FLAG_ZLIB);
791 return fio_net_queue_cmd(FIO_NET_CMD_PROBE, &probe, sizeof(probe), &tag, SK_F_COPY);
794 static int handle_send_eta_cmd(struct fio_net_cmd *cmd)
797 uint64_t tag = cmd->tag;
801 dprint(FD_NET, "server sending status\n");
804 * Fake ETA return if we don't have a local one, otherwise the client
805 * will end up timing out waiting for a response to the ETA request
807 je = get_jobs_eta(true, &size);
810 je = calloc(1, size);
812 je->nr_running = cpu_to_le32(je->nr_running);
813 je->nr_ramp = cpu_to_le32(je->nr_ramp);
814 je->nr_pending = cpu_to_le32(je->nr_pending);
815 je->nr_setting_up = cpu_to_le32(je->nr_setting_up);
816 je->files_open = cpu_to_le32(je->files_open);
818 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
819 je->m_rate[i] = cpu_to_le32(je->m_rate[i]);
820 je->t_rate[i] = cpu_to_le32(je->t_rate[i]);
821 je->m_iops[i] = cpu_to_le32(je->m_iops[i]);
822 je->t_iops[i] = cpu_to_le32(je->t_iops[i]);
823 je->rate[i] = cpu_to_le32(je->rate[i]);
824 je->iops[i] = cpu_to_le32(je->iops[i]);
827 je->elapsed_sec = cpu_to_le64(je->elapsed_sec);
828 je->eta_sec = cpu_to_le64(je->eta_sec);
829 je->nr_threads = cpu_to_le32(je->nr_threads);
830 je->is_pow2 = cpu_to_le32(je->is_pow2);
831 je->unit_base = cpu_to_le32(je->unit_base);
834 fio_net_queue_cmd(FIO_NET_CMD_ETA, je, size, &tag, SK_F_FREE);
838 static int send_update_job_reply(uint64_t __tag, int error)
840 uint64_t tag = __tag;
843 pdu_error = __cpu_to_le32(error);
844 return fio_net_queue_cmd(FIO_NET_CMD_UPDATE_JOB, &pdu_error, sizeof(pdu_error), &tag, SK_F_COPY);
847 static int handle_update_job_cmd(struct fio_net_cmd *cmd)
849 struct cmd_add_job_pdu *pdu = (struct cmd_add_job_pdu *) cmd->payload;
850 struct thread_data *td;
853 tnumber = le32_to_cpu(pdu->thread_number);
855 dprint(FD_NET, "server: updating options for job %u\n", tnumber);
857 if (!tnumber || tnumber > thread_number) {
858 send_update_job_reply(cmd->tag, ENODEV);
862 td = &threads[tnumber - 1];
863 convert_thread_options_to_cpu(&td->o, &pdu->top);
864 send_update_job_reply(cmd->tag, 0);
868 static int handle_trigger_cmd(struct fio_net_cmd *cmd)
870 struct cmd_vtrigger_pdu *pdu = (struct cmd_vtrigger_pdu *) cmd->payload;
871 char *buf = (char *) pdu->cmd;
872 struct all_io_list *rep;
875 pdu->len = le16_to_cpu(pdu->len);
876 buf[pdu->len] = '\0';
878 rep = get_all_io_list(IO_LIST_ALL, &sz);
880 struct all_io_list state;
882 state.threads = cpu_to_le64((uint64_t) 0);
883 fio_net_queue_cmd(FIO_NET_CMD_VTRIGGER, &state, sizeof(state), NULL, SK_F_COPY);
885 fio_net_queue_cmd(FIO_NET_CMD_VTRIGGER, rep, sz, NULL, SK_F_FREE);
891 static int handle_command(struct sk_out *sk_out, struct flist_head *job_list,
892 struct fio_net_cmd *cmd)
896 dprint(FD_NET, "server: got op [%s], pdu=%u, tag=%llx\n",
897 fio_server_op(cmd->opcode), cmd->pdu_len,
898 (unsigned long long) cmd->tag);
900 switch (cmd->opcode) {
901 case FIO_NET_CMD_QUIT:
902 fio_terminate_threads(TERMINATE_ALL);
905 case FIO_NET_CMD_EXIT:
908 case FIO_NET_CMD_LOAD_FILE:
909 ret = handle_load_file_cmd(cmd);
911 case FIO_NET_CMD_JOB:
912 ret = handle_job_cmd(cmd);
914 case FIO_NET_CMD_JOBLINE:
915 ret = handle_jobline_cmd(cmd);
917 case FIO_NET_CMD_PROBE:
918 ret = handle_probe_cmd(cmd);
920 case FIO_NET_CMD_SEND_ETA:
921 ret = handle_send_eta_cmd(cmd);
923 case FIO_NET_CMD_RUN:
924 ret = handle_run_cmd(sk_out, job_list, cmd);
926 case FIO_NET_CMD_UPDATE_JOB:
927 ret = handle_update_job_cmd(cmd);
929 case FIO_NET_CMD_VTRIGGER:
930 ret = handle_trigger_cmd(cmd);
932 case FIO_NET_CMD_SENDFILE: {
933 struct cmd_sendfile_reply *in;
934 struct cmd_reply *rep;
936 rep = (struct cmd_reply *) (uintptr_t) cmd->tag;
938 in = (struct cmd_sendfile_reply *) cmd->payload;
939 in->size = le32_to_cpu(in->size);
940 in->error = le32_to_cpu(in->error);
943 rep->error = in->error;
946 rep->data = smalloc(in->size);
951 rep->size = in->size;
952 memcpy(rep->data, in->data, in->size);
955 fio_mutex_up(&rep->lock);
959 log_err("fio: unknown opcode: %s\n", fio_server_op(cmd->opcode));
967 * Send a command with a separate PDU, not inlined in the command
969 static int fio_send_cmd_ext_pdu(int sk, uint16_t opcode, const void *buf,
970 off_t size, uint64_t tag, uint32_t flags)
972 struct fio_net_cmd cmd;
975 iov[0].iov_base = (void *) &cmd;
976 iov[0].iov_len = sizeof(cmd);
977 iov[1].iov_base = (void *) buf;
978 iov[1].iov_len = size;
980 __fio_init_net_cmd(&cmd, opcode, size, tag);
981 cmd.flags = __cpu_to_le32(flags);
982 fio_net_cmd_crc_pdu(&cmd, buf);
984 return fio_sendv_data(sk, iov, 2);
987 static void finish_entry(struct sk_entry *entry)
989 if (entry->flags & SK_F_FREE)
991 else if (entry->flags & SK_F_COPY)
997 static void entry_set_flags_tag(struct sk_entry *entry, struct flist_head *list,
998 unsigned int *flags, uint64_t *tag)
1000 if (!flist_empty(list))
1001 *flags = FIO_NET_CMD_F_MORE;
1006 *tag = *entry->tagptr;
1011 static int send_vec_entry(struct sk_out *sk_out, struct sk_entry *first)
1017 entry_set_flags_tag(first, &first->next, &flags, &tag);
1019 ret = fio_send_cmd_ext_pdu(sk_out->sk, first->opcode, first->buf, first->size, tag, flags);
1021 while (!flist_empty(&first->next)) {
1022 struct sk_entry *next;
1024 next = flist_first_entry(&first->next, struct sk_entry, list);
1025 flist_del_init(&next->list);
1027 entry_set_flags_tag(next, &first->next, &flags, &tag);
1029 ret += fio_send_cmd_ext_pdu(sk_out->sk, next->opcode, next->buf, next->size, tag, flags);
1036 static int handle_sk_entry(struct sk_out *sk_out, struct sk_entry *entry)
1040 if (entry->flags & SK_F_VEC)
1041 ret = send_vec_entry(sk_out, entry);
1042 if (entry->flags & SK_F_SIMPLE) {
1046 tag = *entry->tagptr;
1048 ret = fio_net_send_simple_cmd(sk_out->sk, entry->opcode, tag, NULL);
1050 ret = fio_net_send_cmd(sk_out->sk, entry->opcode, entry->buf, entry->size, entry->tagptr, NULL);
1053 log_err("fio: failed handling cmd %s\n", fio_server_op(entry->opcode));
1055 finish_entry(entry);
1059 static int handle_xmits(struct sk_out *sk_out)
1061 struct sk_entry *entry;
1066 if (flist_empty(&sk_out->list)) {
1071 flist_splice_init(&sk_out->list, &list);
1074 while (!flist_empty(&list)) {
1075 entry = flist_entry(list.next, struct sk_entry, list);
1076 flist_del(&entry->list);
1077 ret += handle_sk_entry(sk_out, entry);
1083 static int handle_connection(struct sk_out *sk_out)
1085 struct fio_net_cmd *cmd = NULL;
1086 FLIST_HEAD(job_list);
1092 while (!exit_backend) {
1093 struct pollfd pfd = {
1102 if (!flist_empty(&job_list))
1105 handle_xmits(sk_out);
1107 ret = poll(&pfd, 1, 0);
1111 log_err("fio: poll: %s\n", strerror(errno));
1114 fio_server_check_jobs(&job_list);
1115 fio_mutex_down_timeout(sk_out->wait, timeout);
1119 if (pfd.revents & POLLIN)
1121 if (pfd.revents & (POLLERR|POLLHUP)) {
1125 } while (!exit_backend);
1127 fio_server_check_jobs(&job_list);
1132 cmd = fio_net_recv_cmd(sk_out->sk);
1138 ret = handle_command(sk_out, &job_list, cmd);
1149 handle_xmits(sk_out);
1155 /* get the address on this host bound by the input socket,
1156 * whether it is ipv6 or ipv4 */
1158 int get_my_addr_str(int sk)
1160 struct sockaddr_in6 myaddr6 = { 0, };
1161 struct sockaddr_in myaddr4 = { 0, };
1162 struct sockaddr *sockaddr_p;
1168 len = sizeof(myaddr6);
1169 sockaddr_p = (struct sockaddr * )&myaddr6;
1170 net_addr = (char * )&myaddr6.sin6_addr;
1172 len = sizeof(myaddr4);
1173 sockaddr_p = (struct sockaddr * )&myaddr4;
1174 net_addr = (char * )&myaddr4.sin_addr;
1177 ret = getsockname(sk, sockaddr_p, &len);
1179 log_err("fio: getsockaddr: %s\n", strerror(errno));
1183 if (!inet_ntop(use_ipv6?AF_INET6:AF_INET, net_addr, client_sockaddr_str, INET6_ADDRSTRLEN - 1)) {
1184 log_err("inet_ntop: failed to convert addr to string\n");
1188 dprint(FD_NET, "fio server bound to addr %s\n", client_sockaddr_str);
1192 static int accept_loop(int listen_sk)
1194 struct sockaddr_in addr;
1195 struct sockaddr_in6 addr6;
1196 socklen_t len = use_ipv6 ? sizeof(addr6) : sizeof(addr);
1198 int ret = 0, sk, exitval = 0;
1199 struct sk_out *sk_out;
1200 FLIST_HEAD(conn_list);
1202 dprint(FD_NET, "server enter accept loop\n");
1204 fio_set_fd_nonblocking(listen_sk, "server");
1206 sk_out = smalloc(sizeof(*sk_out));
1207 INIT_FLIST_HEAD(&sk_out->list);
1208 sk_out->lock = fio_mutex_init(FIO_MUTEX_UNLOCKED);
1209 sk_out->wait = fio_mutex_init(FIO_MUTEX_LOCKED);
1211 pthread_setspecific(sk_out_key, sk_out);
1213 while (!exit_backend) {
1219 pfd.events = POLLIN;
1223 if (!flist_empty(&conn_list))
1226 ret = poll(&pfd, 1, timeout);
1230 log_err("fio: poll: %s\n", strerror(errno));
1233 fio_server_check_conns(&conn_list);
1237 if (pfd.revents & POLLIN)
1239 } while (!exit_backend);
1241 fio_server_check_conns(&conn_list);
1243 if (exit_backend || ret < 0)
1247 sk = accept(listen_sk, (struct sockaddr *) &addr6, &len);
1249 sk = accept(listen_sk, (struct sockaddr *) &addr, &len);
1252 log_err("fio: accept: %s\n", strerror(errno));
1257 from = inet_ntop(AF_INET6, (struct sockaddr *) &addr6.sin6_addr, buf, sizeof(buf));
1259 from = inet_ntop(AF_INET, (struct sockaddr *) &addr.sin_addr, buf, sizeof(buf));
1261 dprint(FD_NET, "server: connect from %s\n", from);
1268 fio_server_add_conn_pid(&conn_list, pid);
1269 pthread_setspecific(sk_out_key, sk_out);
1274 get_my_addr_str(sk); /* if error, it's already logged, non-fatal */
1275 handle_connection(sk_out);
1279 fio_mutex_remove(sk_out->lock);
1280 fio_mutex_remove(sk_out->wait);
1282 pthread_setspecific(sk_out_key, NULL);
1288 int fio_server_text_output(int level, const char *buf, size_t len)
1290 struct sk_out *sk_out = pthread_getspecific(sk_out_key);
1291 struct cmd_text_pdu *pdu;
1295 if (!sk_out || sk_out->sk == -1)
1298 tlen = sizeof(*pdu) + len;
1301 pdu->level = __cpu_to_le32(level);
1302 pdu->buf_len = __cpu_to_le32(len);
1304 gettimeofday(&tv, NULL);
1305 pdu->log_sec = __cpu_to_le64(tv.tv_sec);
1306 pdu->log_usec = __cpu_to_le64(tv.tv_usec);
1308 memcpy(pdu->buf, buf, len);
1310 fio_net_queue_cmd(FIO_NET_CMD_TEXT, pdu, tlen, NULL, SK_F_COPY);
1315 static void convert_io_stat(struct io_stat *dst, struct io_stat *src)
1317 dst->max_val = cpu_to_le64(src->max_val);
1318 dst->min_val = cpu_to_le64(src->min_val);
1319 dst->samples = cpu_to_le64(src->samples);
1322 * Encode to IEEE 754 for network transfer
1324 dst->mean.u.i = cpu_to_le64(fio_double_to_uint64(src->mean.u.f));
1325 dst->S.u.i = cpu_to_le64(fio_double_to_uint64(src->S.u.f));
1328 static void convert_gs(struct group_run_stats *dst, struct group_run_stats *src)
1332 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1333 dst->max_run[i] = cpu_to_le64(src->max_run[i]);
1334 dst->min_run[i] = cpu_to_le64(src->min_run[i]);
1335 dst->max_bw[i] = cpu_to_le64(src->max_bw[i]);
1336 dst->min_bw[i] = cpu_to_le64(src->min_bw[i]);
1337 dst->io_kb[i] = cpu_to_le64(src->io_kb[i]);
1338 dst->agg[i] = cpu_to_le64(src->agg[i]);
1341 dst->kb_base = cpu_to_le32(src->kb_base);
1342 dst->unit_base = cpu_to_le32(src->unit_base);
1343 dst->groupid = cpu_to_le32(src->groupid);
1344 dst->unified_rw_rep = cpu_to_le32(src->unified_rw_rep);
1348 * Send a CMD_TS, which packs struct thread_stat and group_run_stats
1349 * into a single payload.
1351 void fio_server_send_ts(struct thread_stat *ts, struct group_run_stats *rs)
1353 struct cmd_ts_pdu p;
1356 dprint(FD_NET, "server sending end stats\n");
1358 memset(&p, 0, sizeof(p));
1360 strncpy(p.ts.name, ts->name, FIO_JOBNAME_SIZE - 1);
1361 strncpy(p.ts.verror, ts->verror, FIO_VERROR_SIZE - 1);
1362 strncpy(p.ts.description, ts->description, FIO_JOBDESC_SIZE - 1);
1364 p.ts.error = cpu_to_le32(ts->error);
1365 p.ts.thread_number = cpu_to_le32(ts->thread_number);
1366 p.ts.groupid = cpu_to_le32(ts->groupid);
1367 p.ts.pid = cpu_to_le32(ts->pid);
1368 p.ts.members = cpu_to_le32(ts->members);
1369 p.ts.unified_rw_rep = cpu_to_le32(ts->unified_rw_rep);
1371 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1372 convert_io_stat(&p.ts.clat_stat[i], &ts->clat_stat[i]);
1373 convert_io_stat(&p.ts.slat_stat[i], &ts->slat_stat[i]);
1374 convert_io_stat(&p.ts.lat_stat[i], &ts->lat_stat[i]);
1375 convert_io_stat(&p.ts.bw_stat[i], &ts->bw_stat[i]);
1378 p.ts.usr_time = cpu_to_le64(ts->usr_time);
1379 p.ts.sys_time = cpu_to_le64(ts->sys_time);
1380 p.ts.ctx = cpu_to_le64(ts->ctx);
1381 p.ts.minf = cpu_to_le64(ts->minf);
1382 p.ts.majf = cpu_to_le64(ts->majf);
1383 p.ts.clat_percentiles = cpu_to_le64(ts->clat_percentiles);
1384 p.ts.percentile_precision = cpu_to_le64(ts->percentile_precision);
1386 for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) {
1387 fio_fp64_t *src = &ts->percentile_list[i];
1388 fio_fp64_t *dst = &p.ts.percentile_list[i];
1390 dst->u.i = cpu_to_le64(fio_double_to_uint64(src->u.f));
1393 for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
1394 p.ts.io_u_map[i] = cpu_to_le32(ts->io_u_map[i]);
1395 p.ts.io_u_submit[i] = cpu_to_le32(ts->io_u_submit[i]);
1396 p.ts.io_u_complete[i] = cpu_to_le32(ts->io_u_complete[i]);
1399 for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) {
1400 p.ts.io_u_lat_u[i] = cpu_to_le32(ts->io_u_lat_u[i]);
1401 p.ts.io_u_lat_m[i] = cpu_to_le32(ts->io_u_lat_m[i]);
1404 for (i = 0; i < DDIR_RWDIR_CNT; i++)
1405 for (j = 0; j < FIO_IO_U_PLAT_NR; j++)
1406 p.ts.io_u_plat[i][j] = cpu_to_le32(ts->io_u_plat[i][j]);
1408 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1409 p.ts.total_io_u[i] = cpu_to_le64(ts->total_io_u[i]);
1410 p.ts.short_io_u[i] = cpu_to_le64(ts->short_io_u[i]);
1411 p.ts.drop_io_u[i] = cpu_to_le64(ts->drop_io_u[i]);
1414 p.ts.total_submit = cpu_to_le64(ts->total_submit);
1415 p.ts.total_complete = cpu_to_le64(ts->total_complete);
1417 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1418 p.ts.io_bytes[i] = cpu_to_le64(ts->io_bytes[i]);
1419 p.ts.runtime[i] = cpu_to_le64(ts->runtime[i]);
1422 p.ts.total_run_time = cpu_to_le64(ts->total_run_time);
1423 p.ts.continue_on_error = cpu_to_le16(ts->continue_on_error);
1424 p.ts.total_err_count = cpu_to_le64(ts->total_err_count);
1425 p.ts.first_error = cpu_to_le32(ts->first_error);
1426 p.ts.kb_base = cpu_to_le32(ts->kb_base);
1427 p.ts.unit_base = cpu_to_le32(ts->unit_base);
1429 p.ts.latency_depth = cpu_to_le32(ts->latency_depth);
1430 p.ts.latency_target = cpu_to_le64(ts->latency_target);
1431 p.ts.latency_window = cpu_to_le64(ts->latency_window);
1432 p.ts.latency_percentile.u.i = cpu_to_le64(fio_double_to_uint64(ts->latency_percentile.u.f));
1434 p.ts.nr_block_infos = le64_to_cpu(ts->nr_block_infos);
1435 for (i = 0; i < p.ts.nr_block_infos; i++)
1436 p.ts.block_infos[i] = le32_to_cpu(ts->block_infos[i]);
1438 convert_gs(&p.rs, rs);
1440 fio_net_queue_cmd(FIO_NET_CMD_TS, &p, sizeof(p), NULL, SK_F_COPY);
1443 void fio_server_send_gs(struct group_run_stats *rs)
1445 struct group_run_stats gs;
1447 dprint(FD_NET, "server sending group run stats\n");
1449 convert_gs(&gs, rs);
1450 fio_net_queue_cmd(FIO_NET_CMD_GS, &gs, sizeof(gs), NULL, SK_F_COPY);
1453 static void convert_agg(struct disk_util_agg *dst, struct disk_util_agg *src)
1457 for (i = 0; i < 2; i++) {
1458 dst->ios[i] = cpu_to_le64(src->ios[i]);
1459 dst->merges[i] = cpu_to_le64(src->merges[i]);
1460 dst->sectors[i] = cpu_to_le64(src->sectors[i]);
1461 dst->ticks[i] = cpu_to_le64(src->ticks[i]);
1464 dst->io_ticks = cpu_to_le64(src->io_ticks);
1465 dst->time_in_queue = cpu_to_le64(src->time_in_queue);
1466 dst->slavecount = cpu_to_le32(src->slavecount);
1467 dst->max_util.u.i = cpu_to_le64(fio_double_to_uint64(src->max_util.u.f));
1470 static void convert_dus(struct disk_util_stat *dst, struct disk_util_stat *src)
1474 dst->name[FIO_DU_NAME_SZ - 1] = '\0';
1475 strncpy((char *) dst->name, (char *) src->name, FIO_DU_NAME_SZ - 1);
1477 for (i = 0; i < 2; i++) {
1478 dst->s.ios[i] = cpu_to_le64(src->s.ios[i]);
1479 dst->s.merges[i] = cpu_to_le64(src->s.merges[i]);
1480 dst->s.sectors[i] = cpu_to_le64(src->s.sectors[i]);
1481 dst->s.ticks[i] = cpu_to_le64(src->s.ticks[i]);
1484 dst->s.io_ticks = cpu_to_le64(src->s.io_ticks);
1485 dst->s.time_in_queue = cpu_to_le64(src->s.time_in_queue);
1486 dst->s.msec = cpu_to_le64(src->s.msec);
1489 void fio_server_send_du(void)
1491 struct disk_util *du;
1492 struct flist_head *entry;
1493 struct cmd_du_pdu pdu;
1495 dprint(FD_NET, "server: sending disk_util %d\n", !flist_empty(&disk_list));
1497 memset(&pdu, 0, sizeof(pdu));
1499 flist_for_each(entry, &disk_list) {
1500 du = flist_entry(entry, struct disk_util, list);
1502 convert_dus(&pdu.dus, &du->dus);
1503 convert_agg(&pdu.agg, &du->agg);
1505 fio_net_queue_cmd(FIO_NET_CMD_DU, &pdu, sizeof(pdu), NULL, SK_F_COPY);
1509 static int fio_send_iolog_gz(struct sk_entry *first, struct io_log *log)
1513 struct sk_entry *entry;
1518 * Dirty - since the log is potentially huge, compress it into
1519 * FIO_SERVER_MAX_FRAGMENT_PDU chunks and let the receiving
1520 * side defragment it.
1522 out_pdu = malloc(FIO_SERVER_MAX_FRAGMENT_PDU);
1524 stream.zalloc = Z_NULL;
1525 stream.zfree = Z_NULL;
1526 stream.opaque = Z_NULL;
1528 if (deflateInit(&stream, Z_DEFAULT_COMPRESSION) != Z_OK) {
1533 stream.next_in = (void *) log->log;
1534 stream.avail_in = log->nr_samples * log_entry_sz(log);
1537 unsigned int this_len;
1539 stream.avail_out = FIO_SERVER_MAX_FRAGMENT_PDU;
1540 stream.next_out = out_pdu;
1541 ret = deflate(&stream, Z_FINISH);
1542 /* may be Z_OK, or Z_STREAM_END */
1546 this_len = FIO_SERVER_MAX_FRAGMENT_PDU - stream.avail_out;
1548 entry = fio_net_prep_cmd(FIO_NET_CMD_IOLOG, out_pdu, this_len,
1549 NULL, SK_F_FREE | SK_F_VEC);
1550 flist_add_tail(&entry->list, &first->next);
1551 } while (stream.avail_in);
1554 deflateEnd(&stream);
1561 int fio_send_iolog(struct thread_data *td, struct io_log *log, const char *name)
1563 struct cmd_iolog_pdu pdu;
1564 struct sk_entry *first;
1567 pdu.nr_samples = cpu_to_le64(log->nr_samples);
1568 pdu.thread_number = cpu_to_le32(td->thread_number);
1569 pdu.log_type = cpu_to_le32(log->log_type);
1570 pdu.compressed = cpu_to_le32(use_zlib);
1572 strncpy((char *) pdu.name, name, FIO_NET_NAME_MAX);
1573 pdu.name[FIO_NET_NAME_MAX - 1] = '\0';
1575 for (i = 0; i < log->nr_samples; i++) {
1576 struct io_sample *s = get_sample(log, i);
1578 s->time = cpu_to_le64(s->time);
1579 s->val = cpu_to_le64(s->val);
1580 s->__ddir = cpu_to_le32(s->__ddir);
1581 s->bs = cpu_to_le32(s->bs);
1583 if (log->log_offset) {
1584 struct io_sample_offset *so = (void *) s;
1586 so->offset = cpu_to_le64(so->offset);
1591 * Assemble header entry first
1593 first = fio_net_prep_cmd(FIO_NET_CMD_IOLOG, &pdu, sizeof(pdu), NULL, SK_F_COPY | SK_F_VEC);
1596 * Now append actual log entries. Compress if we can, otherwise just
1597 * plain text output.
1600 ret = fio_send_iolog_gz(first, log);
1602 struct sk_entry *entry;
1604 entry = fio_net_prep_cmd(FIO_NET_CMD_IOLOG, log->log,
1605 log->nr_samples * log_entry_sz(log),
1606 NULL, SK_F_FREE | SK_F_VEC);
1607 flist_add_tail(&entry->list, &first->next);
1613 void fio_server_send_add_job(struct thread_data *td)
1615 struct cmd_add_job_pdu pdu;
1617 memset(&pdu, 0, sizeof(pdu));
1618 pdu.thread_number = cpu_to_le32(td->thread_number);
1619 pdu.groupid = cpu_to_le32(td->groupid);
1620 convert_thread_options_to_net(&pdu.top, &td->o);
1622 fio_net_queue_cmd(FIO_NET_CMD_ADD_JOB, &pdu, sizeof(pdu), NULL, SK_F_COPY);
1625 void fio_server_send_start(struct thread_data *td)
1627 struct sk_out *sk_out = pthread_getspecific(sk_out_key);
1629 assert(sk_out->sk != -1);
1631 fio_net_queue_cmd(FIO_NET_CMD_SERVER_START, NULL, 0, 0, SK_F_SIMPLE);
1634 int fio_server_get_verify_state(const char *name, int threadnumber,
1635 void **datap, int *version)
1637 struct thread_io_list *s;
1638 struct cmd_sendfile out;
1639 struct cmd_reply *rep;
1643 dprint(FD_NET, "server: request verify state\n");
1645 rep = smalloc(sizeof(*rep));
1647 log_err("fio: smalloc pool too small\n");
1651 __fio_mutex_init(&rep->lock, FIO_MUTEX_LOCKED);
1655 verify_state_gen_name((char *) out.path, sizeof(out.path), name, me,
1657 tag = (uint64_t) (uintptr_t) rep;
1658 fio_net_queue_cmd(FIO_NET_CMD_SENDFILE, &out, sizeof(out), &tag, SK_F_COPY);
1661 * Wait for the backend to receive the reply
1663 if (fio_mutex_down_timeout(&rep->lock, 10000)) {
1664 log_err("fio: timed out waiting for reply\n");
1669 log_err("fio: failure on receiving state file: %s\n", strerror(rep->error));
1673 fio_net_queue_quit();
1678 * The format is verify_state_hdr, then thread_io_list. Verify
1679 * the header, and the thread_io_list checksum
1681 s = rep->data + sizeof(struct verify_state_hdr);
1682 if (verify_state_hdr(rep->data, s, version))
1686 * Don't need the header from now, copy just the thread_io_list
1688 rep->size -= sizeof(struct verify_state_hdr);
1689 data = malloc(rep->size);
1690 memcpy(data, s, rep->size);
1694 __fio_mutex_remove(&rep->lock);
1699 static int fio_init_server_ip(void)
1701 struct sockaddr *addr;
1708 sk = socket(AF_INET6, SOCK_STREAM, 0);
1710 sk = socket(AF_INET, SOCK_STREAM, 0);
1713 log_err("fio: socket: %s\n", strerror(errno));
1718 if (setsockopt(sk, SOL_SOCKET, SO_REUSEADDR, (void *)&opt, sizeof(opt)) < 0) {
1719 log_err("fio: setsockopt(REUSEADDR): %s\n", strerror(errno));
1724 if (setsockopt(sk, SOL_SOCKET, SO_REUSEPORT, &opt, sizeof(opt)) < 0) {
1725 log_err("fio: setsockopt(REUSEPORT): %s\n", strerror(errno));
1732 const void *src = &saddr_in6.sin6_addr;
1734 addr = (struct sockaddr *) &saddr_in6;
1735 socklen = sizeof(saddr_in6);
1736 saddr_in6.sin6_family = AF_INET6;
1737 str = inet_ntop(AF_INET6, src, buf, sizeof(buf));
1739 const void *src = &saddr_in.sin_addr;
1741 addr = (struct sockaddr *) &saddr_in;
1742 socklen = sizeof(saddr_in);
1743 saddr_in.sin_family = AF_INET;
1744 str = inet_ntop(AF_INET, src, buf, sizeof(buf));
1747 if (bind(sk, addr, socklen) < 0) {
1748 log_err("fio: bind: %s\n", strerror(errno));
1749 log_info("fio: failed with IPv%c %s\n", use_ipv6 ? '6' : '4', str);
1757 static int fio_init_server_sock(void)
1759 struct sockaddr_un addr;
1764 sk = socket(AF_UNIX, SOCK_STREAM, 0);
1766 log_err("fio: socket: %s\n", strerror(errno));
1772 memset(&addr, 0, sizeof(addr));
1773 addr.sun_family = AF_UNIX;
1774 strncpy(addr.sun_path, bind_sock, sizeof(addr.sun_path) - 1);
1776 len = sizeof(addr.sun_family) + strlen(bind_sock) + 1;
1778 if (bind(sk, (struct sockaddr *) &addr, len) < 0) {
1779 log_err("fio: bind: %s\n", strerror(errno));
1788 static int fio_init_server_connection(void)
1793 dprint(FD_NET, "starting server\n");
1796 sk = fio_init_server_ip();
1798 sk = fio_init_server_sock();
1803 memset(bind_str, 0, sizeof(bind_str));
1812 src = &saddr_in6.sin6_addr;
1815 src = &saddr_in.sin_addr;
1818 p = (char *) inet_ntop(af, src, bind_str, sizeof(bind_str));
1820 sprintf(port, ",%u", fio_net_port);
1824 strncpy(bind_str, port, sizeof(bind_str) - 1);
1826 strncpy(bind_str, bind_sock, sizeof(bind_str) - 1);
1828 log_info("fio: server listening on %s\n", bind_str);
1830 if (listen(sk, 0) < 0) {
1831 log_err("fio: listen: %s\n", strerror(errno));
1839 int fio_server_parse_host(const char *host, int ipv6, struct in_addr *inp,
1840 struct in6_addr *inp6)
1846 ret = inet_pton(AF_INET6, host, inp6);
1848 ret = inet_pton(AF_INET, host, inp);
1851 struct addrinfo hints, *res;
1853 memset(&hints, 0, sizeof(hints));
1854 hints.ai_family = ipv6 ? AF_INET6 : AF_INET;
1855 hints.ai_socktype = SOCK_STREAM;
1857 ret = getaddrinfo(host, NULL, &hints, &res);
1859 log_err("fio: failed to resolve <%s> (%s)\n", host,
1865 memcpy(inp6, &((struct sockaddr_in6 *) res->ai_addr)->sin6_addr, sizeof(*inp6));
1867 memcpy(inp, &((struct sockaddr_in *) res->ai_addr)->sin_addr, sizeof(*inp));
1877 * Parse a host/ip/port string. Reads from 'str'.
1882 * *ptr is the host, *port is the port, inp is the destination.
1884 * *ptr is the host, *port is the port, inp6 is the dest, and *ipv6 is 1.
1885 * For local domain sockets:
1886 * *ptr is the filename, *is_sock is 1.
1888 int fio_server_parse_string(const char *str, char **ptr, int *is_sock,
1889 int *port, struct in_addr *inp,
1890 struct in6_addr *inp6, int *ipv6)
1892 const char *host = str;
1898 *port = fio_net_port;
1901 if (!strncmp(str, "sock:", 5)) {
1902 *ptr = strdup(str + 5);
1909 * Is it ip:<ip or host>:port
1911 if (!strncmp(host, "ip:", 3))
1913 else if (!strncmp(host, "ip4:", 4))
1915 else if (!strncmp(host, "ip6:", 4)) {
1918 } else if (host[0] == ':') {
1919 /* String is :port */
1922 if (!lport || lport > 65535) {
1923 log_err("fio: bad server port %u\n", lport);
1926 /* no hostname given, we are done */
1932 * If no port seen yet, check if there's a last ',' at the end
1935 portp = strchr(host, ',');
1939 lport = atoi(portp);
1940 if (!lport || lport > 65535) {
1941 log_err("fio: bad server port %u\n", lport);
1953 *ptr = strdup(host);
1955 if (fio_server_parse_host(*ptr, *ipv6, inp, inp6)) {
1962 *port = fio_net_port;
1968 * Server arg should be one of:
1970 * sock:/path/to/socket
1974 * Where sock uses unix domain sockets, and ip binds the server to
1975 * a specific interface. If no arguments are given to the server, it
1976 * uses IP and binds to 0.0.0.0.
1979 static int fio_handle_server_arg(void)
1981 int port = fio_net_port;
1982 int is_sock, ret = 0;
1984 saddr_in.sin_addr.s_addr = htonl(INADDR_ANY);
1986 if (!fio_server_arg)
1989 ret = fio_server_parse_string(fio_server_arg, &bind_sock, &is_sock,
1990 &port, &saddr_in.sin_addr,
1991 &saddr_in6.sin6_addr, &use_ipv6);
1993 if (!is_sock && bind_sock) {
1999 fio_net_port = port;
2000 saddr_in.sin_port = htons(port);
2001 saddr_in6.sin6_port = htons(port);
2005 static void sig_int(int sig)
2011 static void set_sig_handlers(void)
2013 struct sigaction act;
2015 memset(&act, 0, sizeof(act));
2016 act.sa_handler = sig_int;
2017 act.sa_flags = SA_RESTART;
2018 sigaction(SIGINT, &act, NULL);
2021 static int fio_server(void)
2025 dprint(FD_NET, "starting server\n");
2027 if (fio_handle_server_arg())
2030 sk = fio_init_server_connection();
2036 if (pthread_key_create(&sk_out_key, NULL))
2037 log_err("fio: can't create sk_out backend key\n");
2039 ret = accept_loop(sk);
2043 if (fio_server_arg) {
2044 free(fio_server_arg);
2045 fio_server_arg = NULL;
2053 void fio_server_got_signal(int signal)
2055 struct sk_out *sk_out = pthread_getspecific(sk_out_key);
2059 if (signal == SIGPIPE)
2062 log_info("\nfio: terminating on signal %d\n", signal);
2067 static int check_existing_pidfile(const char *pidfile)
2074 if (stat(pidfile, &sb))
2077 f = fopen(pidfile, "r");
2081 if (fread(buf, sb.st_size, 1, f) <= 0) {
2088 if (kill(pid, SIGCONT) < 0)
2089 return errno != ESRCH;
2094 static int write_pid(pid_t pid, const char *pidfile)
2098 fpid = fopen(pidfile, "w");
2100 log_err("fio: failed opening pid file %s\n", pidfile);
2104 fprintf(fpid, "%u\n", (unsigned int) pid);
2110 * If pidfile is specified, background us.
2112 int fio_start_server(char *pidfile)
2119 WSAStartup(MAKEWORD(2, 2), &wsd);
2123 return fio_server();
2125 if (check_existing_pidfile(pidfile)) {
2126 log_err("fio: pidfile %s exists and server appears alive\n",
2134 log_err("fio: failed server fork: %s", strerror(errno));
2138 ret = write_pid(pid, pidfile);
2144 openlog("fio", LOG_NDELAY|LOG_NOWAIT|LOG_PID, LOG_USER);
2146 close(STDIN_FILENO);
2147 close(STDOUT_FILENO);
2148 close(STDERR_FILENO);
2160 void fio_server_set_arg(const char *arg)
2162 fio_server_arg = strdup(arg);