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; /* link on sk_out->list */
44 int flags; /* SK_F_* */
45 int opcode; /* Actual command fields */
49 struct flist_head next; /* Other sk_entry's, if linked command */
53 unsigned int refs; /* frees sk_out when it drops to zero.
54 * protected by below ->lock */
56 int sk; /* socket fd to talk to client */
57 struct fio_mutex *lock; /* protects ref and below list */
58 struct flist_head list; /* list of pending transmit work */
59 struct fio_mutex *wait; /* wake backend when items added to list */
62 static char *fio_server_arg;
63 static char *bind_sock;
64 static struct sockaddr_in saddr_in;
65 static struct sockaddr_in6 saddr_in6;
68 static unsigned int has_zlib = 1;
70 static unsigned int has_zlib = 0;
72 static unsigned int use_zlib;
75 static pthread_key_t sk_out_key;
77 struct fio_fork_item {
78 struct flist_head list;
86 struct fio_mutex lock;
92 static const char *fio_server_ops[FIO_NET_CMD_NR] = {
117 static void sk_lock(struct sk_out *sk_out)
119 fio_mutex_down(sk_out->lock);
122 static void sk_unlock(struct sk_out *sk_out)
124 fio_mutex_up(sk_out->lock);
127 void sk_out_assign(struct sk_out *sk_out)
135 pthread_setspecific(sk_out_key, sk_out);
138 static void sk_out_free(struct sk_out *sk_out)
140 fio_mutex_remove(sk_out->lock);
141 fio_mutex_remove(sk_out->wait);
145 static int __sk_out_drop(struct sk_out *sk_out)
151 refs = --sk_out->refs;
163 void sk_out_drop(void)
165 struct sk_out *sk_out;
167 sk_out = pthread_getspecific(sk_out_key);
168 if (!__sk_out_drop(sk_out))
169 pthread_setspecific(sk_out_key, NULL);
172 const char *fio_server_op(unsigned int op)
176 if (op < FIO_NET_CMD_NR)
177 return fio_server_ops[op];
179 sprintf(buf, "UNKNOWN/%d", op);
183 static ssize_t iov_total_len(const struct iovec *iov, int count)
195 static int fio_sendv_data(int sk, struct iovec *iov, int count)
197 ssize_t total_len = iov_total_len(iov, count);
201 ret = writev(sk, iov, count);
208 if (ret >= iov->iov_len) {
213 iov->iov_base += ret;
219 else if (errno == EAGAIN || errno == EINTR)
223 } while (!exit_backend);
231 int fio_send_data(int sk, const void *p, unsigned int len)
233 struct iovec iov = { .iov_base = (void *) p, .iov_len = len };
235 assert(len <= sizeof(struct fio_net_cmd) + FIO_SERVER_MAX_FRAGMENT_PDU);
237 return fio_sendv_data(sk, &iov, 1);
240 int fio_recv_data(int sk, void *p, unsigned int len)
243 int ret = recv(sk, p, len, MSG_WAITALL);
253 else if (errno == EAGAIN || errno == EINTR)
257 } while (!exit_backend);
265 static int verify_convert_cmd(struct fio_net_cmd *cmd)
269 cmd->cmd_crc16 = le16_to_cpu(cmd->cmd_crc16);
270 cmd->pdu_crc16 = le16_to_cpu(cmd->pdu_crc16);
272 crc = fio_crc16(cmd, FIO_NET_CMD_CRC_SZ);
273 if (crc != cmd->cmd_crc16) {
274 log_err("fio: server bad crc on command (got %x, wanted %x)\n",
275 cmd->cmd_crc16, crc);
279 cmd->version = le16_to_cpu(cmd->version);
280 cmd->opcode = le16_to_cpu(cmd->opcode);
281 cmd->flags = le32_to_cpu(cmd->flags);
282 cmd->tag = le64_to_cpu(cmd->tag);
283 cmd->pdu_len = le32_to_cpu(cmd->pdu_len);
285 switch (cmd->version) {
289 log_err("fio: bad server cmd version %d\n", cmd->version);
293 if (cmd->pdu_len > FIO_SERVER_MAX_FRAGMENT_PDU) {
294 log_err("fio: command payload too large: %u\n", cmd->pdu_len);
302 * Read (and defragment, if necessary) incoming commands
304 struct fio_net_cmd *fio_net_recv_cmd(int sk)
306 struct fio_net_cmd cmd, *tmp, *cmdret = NULL;
307 size_t cmd_size = 0, pdu_offset = 0;
313 ret = fio_recv_data(sk, &cmd, sizeof(cmd));
317 /* We have a command, verify it and swap if need be */
318 ret = verify_convert_cmd(&cmd);
323 /* if this is text, add room for \0 at the end */
324 cmd_size = sizeof(cmd) + cmd.pdu_len + 1;
327 cmd_size += cmd.pdu_len;
329 if (cmd_size / 1024 > FIO_SERVER_MAX_CMD_MB * 1024) {
330 log_err("fio: cmd+pdu too large (%llu)\n", (unsigned long long) cmd_size);
335 tmp = realloc(cmdret, cmd_size);
337 log_err("fio: server failed allocating cmd\n");
344 memcpy(cmdret, &cmd, sizeof(cmd));
345 else if (cmdret->opcode != cmd.opcode) {
346 log_err("fio: fragment opcode mismatch (%d != %d)\n",
347 cmdret->opcode, cmd.opcode);
355 /* There's payload, get it */
356 pdu = (void *) cmdret->payload + pdu_offset;
357 ret = fio_recv_data(sk, pdu, cmd.pdu_len);
361 /* Verify payload crc */
362 crc = fio_crc16(pdu, cmd.pdu_len);
363 if (crc != cmd.pdu_crc16) {
364 log_err("fio: server bad crc on payload ");
365 log_err("(got %x, wanted %x)\n", cmd.pdu_crc16, crc);
370 pdu_offset += cmd.pdu_len;
372 cmdret->pdu_len += cmd.pdu_len;
374 } while (cmd.flags & FIO_NET_CMD_F_MORE);
380 /* zero-terminate text input */
381 if (cmdret->pdu_len) {
382 if (cmdret->opcode == FIO_NET_CMD_TEXT) {
383 struct cmd_text_pdu *__pdu = (struct cmd_text_pdu *) cmdret->payload;
384 char *buf = (char *) __pdu->buf;
386 buf[__pdu->buf_len] = '\0';
387 } else if (cmdret->opcode == FIO_NET_CMD_JOB) {
388 struct cmd_job_pdu *__pdu = (struct cmd_job_pdu *) cmdret->payload;
389 char *buf = (char *) __pdu->buf;
390 int len = le32_to_cpu(__pdu->buf_len);
396 /* frag flag is internal */
397 cmdret->flags &= ~FIO_NET_CMD_F_MORE;
403 static void add_reply(uint64_t tag, struct flist_head *list)
405 struct fio_net_cmd_reply *reply;
407 reply = (struct fio_net_cmd_reply *) (uintptr_t) tag;
408 flist_add_tail(&reply->list, list);
411 static uint64_t alloc_reply(uint64_t tag, uint16_t opcode)
413 struct fio_net_cmd_reply *reply;
415 reply = calloc(1, sizeof(*reply));
416 INIT_FLIST_HEAD(&reply->list);
417 fio_gettime(&reply->tv, NULL);
418 reply->saved_tag = tag;
419 reply->opcode = opcode;
421 return (uintptr_t) reply;
424 static void free_reply(uint64_t tag)
426 struct fio_net_cmd_reply *reply;
428 reply = (struct fio_net_cmd_reply *) (uintptr_t) tag;
432 void fio_net_cmd_crc_pdu(struct fio_net_cmd *cmd, const void *pdu)
436 cmd->cmd_crc16 = __cpu_to_le16(fio_crc16(cmd, FIO_NET_CMD_CRC_SZ));
438 pdu_len = le32_to_cpu(cmd->pdu_len);
439 cmd->pdu_crc16 = __cpu_to_le16(fio_crc16(pdu, pdu_len));
442 void fio_net_cmd_crc(struct fio_net_cmd *cmd)
444 fio_net_cmd_crc_pdu(cmd, cmd->payload);
447 int fio_net_send_cmd(int fd, uint16_t opcode, const void *buf, off_t size,
448 uint64_t *tagptr, struct flist_head *list)
450 struct fio_net_cmd *cmd = NULL;
451 size_t this_len, cur_len = 0;
457 tag = *tagptr = alloc_reply(*tagptr, opcode);
459 tag = tagptr ? *tagptr : 0;
463 if (this_len > FIO_SERVER_MAX_FRAGMENT_PDU)
464 this_len = FIO_SERVER_MAX_FRAGMENT_PDU;
466 if (!cmd || cur_len < sizeof(*cmd) + this_len) {
470 cur_len = sizeof(*cmd) + this_len;
471 cmd = malloc(cur_len);
474 fio_init_net_cmd(cmd, opcode, buf, this_len, tag);
477 cmd->flags = __cpu_to_le32(FIO_NET_CMD_F_MORE);
479 fio_net_cmd_crc(cmd);
481 ret = fio_send_data(fd, cmd, sizeof(*cmd) + this_len);
484 } while (!ret && size);
490 add_reply(tag, list);
499 struct sk_entry *fio_net_prep_cmd(uint16_t opcode, void *buf, off_t size,
500 uint64_t *tagptr, int flags)
502 struct sk_entry *entry;
504 entry = smalloc(sizeof(*entry));
505 INIT_FLIST_HEAD(&entry->next);
506 entry->opcode = opcode;
507 if (flags & SK_F_COPY) {
508 entry->buf = smalloc(size);
509 memcpy(entry->buf, buf, size);
513 entry->tagptr = tagptr;
514 entry->flags = flags;
519 static void fio_net_queue_entry(struct sk_entry *entry)
521 struct sk_out *sk_out = pthread_getspecific(sk_out_key);
524 flist_add_tail(&entry->list, &sk_out->list);
527 fio_mutex_up(sk_out->wait);
530 static int fio_net_queue_cmd(uint16_t opcode, void *buf, off_t size,
531 uint64_t *tagptr, int flags)
533 struct sk_entry *entry;
535 entry = fio_net_prep_cmd(opcode, buf, size, tagptr, flags);
536 fio_net_queue_entry(entry);
540 static int fio_net_send_simple_stack_cmd(int sk, uint16_t opcode, uint64_t tag)
542 struct fio_net_cmd cmd;
544 fio_init_net_cmd(&cmd, opcode, NULL, 0, tag);
545 fio_net_cmd_crc(&cmd);
547 return fio_send_data(sk, &cmd, sizeof(cmd));
551 * If 'list' is non-NULL, then allocate and store the sent command for
552 * later verification.
554 int fio_net_send_simple_cmd(int sk, uint16_t opcode, uint64_t tag,
555 struct flist_head *list)
560 tag = alloc_reply(tag, opcode);
562 ret = fio_net_send_simple_stack_cmd(sk, opcode, tag);
571 add_reply(tag, list);
576 static int fio_net_queue_quit(void)
578 dprint(FD_NET, "server: sending quit\n");
580 return fio_net_queue_cmd(FIO_NET_CMD_QUIT, NULL, 0, 0, SK_F_SIMPLE);
583 int fio_net_send_quit(int sk)
585 dprint(FD_NET, "server: sending quit\n");
587 return fio_net_send_simple_cmd(sk, FIO_NET_CMD_QUIT, 0, NULL);
590 static int fio_net_send_ack(struct fio_net_cmd *cmd, int error, int signal)
592 struct cmd_end_pdu epdu;
598 epdu.error = __cpu_to_le32(error);
599 epdu.signal = __cpu_to_le32(signal);
600 return fio_net_queue_cmd(FIO_NET_CMD_STOP, &epdu, sizeof(epdu), &tag, SK_F_COPY);
603 static int fio_net_queue_stop(int error, int signal)
605 dprint(FD_NET, "server: sending stop (%d, %d)\n", error, signal);
606 return fio_net_send_ack(NULL, error, signal);
609 static void fio_server_add_fork_item(pid_t pid, struct flist_head *list)
611 struct fio_fork_item *ffi;
613 ffi = malloc(sizeof(*ffi));
618 flist_add_tail(&ffi->list, list);
621 static void fio_server_add_conn_pid(struct flist_head *conn_list, pid_t pid)
623 dprint(FD_NET, "server: forked off connection job (pid=%u)\n", (int) pid);
624 fio_server_add_fork_item(pid, conn_list);
627 static void fio_server_add_job_pid(struct flist_head *job_list, pid_t pid)
629 dprint(FD_NET, "server: forked off job job (pid=%u)\n", (int) pid);
630 fio_server_add_fork_item(pid, job_list);
633 static void fio_server_check_fork_item(struct fio_fork_item *ffi)
637 ret = waitpid(ffi->pid, &status, WNOHANG);
639 if (errno == ECHILD) {
640 log_err("fio: connection pid %u disappeared\n", (int) ffi->pid);
643 log_err("fio: waitpid: %s\n", strerror(errno));
644 } else if (ret == ffi->pid) {
645 if (WIFSIGNALED(status)) {
646 ffi->signal = WTERMSIG(status);
649 if (WIFEXITED(status)) {
650 if (WEXITSTATUS(status))
651 ffi->exitval = WEXITSTATUS(status);
657 static void fio_server_fork_item_done(struct fio_fork_item *ffi, bool stop)
659 dprint(FD_NET, "pid %u exited, sig=%u, exitval=%d\n", (int) ffi->pid, ffi->signal, ffi->exitval);
662 * Fold STOP and QUIT...
665 fio_net_queue_stop(ffi->exitval, ffi->signal);
666 fio_net_queue_quit();
669 flist_del(&ffi->list);
673 static void fio_server_check_fork_items(struct flist_head *list, bool stop)
675 struct flist_head *entry, *tmp;
676 struct fio_fork_item *ffi;
678 flist_for_each_safe(entry, tmp, list) {
679 ffi = flist_entry(entry, struct fio_fork_item, list);
681 fio_server_check_fork_item(ffi);
684 fio_server_fork_item_done(ffi, stop);
688 static void fio_server_check_jobs(struct flist_head *job_list)
690 fio_server_check_fork_items(job_list, true);
693 static void fio_server_check_conns(struct flist_head *conn_list)
695 fio_server_check_fork_items(conn_list, false);
698 static int handle_load_file_cmd(struct fio_net_cmd *cmd)
700 struct cmd_load_file_pdu *pdu = (struct cmd_load_file_pdu *) cmd->payload;
701 void *file_name = pdu->file;
702 struct cmd_start_pdu spdu;
704 dprint(FD_NET, "server: loading local file %s\n", (char *) file_name);
706 pdu->name_len = le16_to_cpu(pdu->name_len);
707 pdu->client_type = le16_to_cpu(pdu->client_type);
709 if (parse_jobs_ini(file_name, 0, 0, pdu->client_type)) {
710 fio_net_queue_quit();
714 spdu.jobs = cpu_to_le32(thread_number);
715 spdu.stat_outputs = cpu_to_le32(stat_number);
716 fio_net_queue_cmd(FIO_NET_CMD_START, &spdu, sizeof(spdu), NULL, SK_F_COPY);
720 static int handle_run_cmd(struct sk_out *sk_out, struct flist_head *job_list,
721 struct fio_net_cmd *cmd)
731 fio_server_add_job_pid(job_list, pid);
735 ret = fio_backend(sk_out);
740 static int handle_job_cmd(struct fio_net_cmd *cmd)
742 struct cmd_job_pdu *pdu = (struct cmd_job_pdu *) cmd->payload;
743 void *buf = pdu->buf;
744 struct cmd_start_pdu spdu;
746 pdu->buf_len = le32_to_cpu(pdu->buf_len);
747 pdu->client_type = le32_to_cpu(pdu->client_type);
749 if (parse_jobs_ini(buf, 1, 0, pdu->client_type)) {
750 fio_net_queue_quit();
754 spdu.jobs = cpu_to_le32(thread_number);
755 spdu.stat_outputs = cpu_to_le32(stat_number);
757 fio_net_queue_cmd(FIO_NET_CMD_START, &spdu, sizeof(spdu), NULL, SK_F_COPY);
761 static int handle_jobline_cmd(struct fio_net_cmd *cmd)
763 void *pdu = cmd->payload;
764 struct cmd_single_line_pdu *cslp;
765 struct cmd_line_pdu *clp;
766 unsigned long offset;
767 struct cmd_start_pdu spdu;
772 clp->lines = le16_to_cpu(clp->lines);
773 clp->client_type = le16_to_cpu(clp->client_type);
774 argv = malloc(clp->lines * sizeof(char *));
775 offset = sizeof(*clp);
777 dprint(FD_NET, "server: %d command line args\n", clp->lines);
779 for (i = 0; i < clp->lines; i++) {
781 argv[i] = (char *) cslp->text;
783 offset += sizeof(*cslp) + le16_to_cpu(cslp->len);
784 dprint(FD_NET, "server: %d: %s\n", i, argv[i]);
787 if (parse_cmd_line(clp->lines, argv, clp->client_type)) {
788 fio_net_queue_quit();
795 spdu.jobs = cpu_to_le32(thread_number);
796 spdu.stat_outputs = cpu_to_le32(stat_number);
798 fio_net_queue_cmd(FIO_NET_CMD_START, &spdu, sizeof(spdu), NULL, SK_F_COPY);
802 static int handle_probe_cmd(struct fio_net_cmd *cmd)
804 struct cmd_client_probe_pdu *pdu = (struct cmd_client_probe_pdu *) cmd->payload;
805 struct cmd_probe_reply_pdu probe;
806 uint64_t tag = cmd->tag;
808 dprint(FD_NET, "server: sending probe reply\n");
810 strcpy(me, (char *) pdu->server);
812 memset(&probe, 0, sizeof(probe));
813 gethostname((char *) probe.hostname, sizeof(probe.hostname));
814 #ifdef CONFIG_BIG_ENDIAN
817 strncpy((char *) probe.fio_version, fio_version_string, sizeof(probe.fio_version));
820 probe.arch = FIO_ARCH;
821 probe.bpp = sizeof(void *);
822 probe.cpus = __cpu_to_le32(cpus_online());
825 * If the client supports compression and we do too, then enable it
827 if (has_zlib && le64_to_cpu(pdu->flags) & FIO_PROBE_FLAG_ZLIB) {
828 probe.flags = __cpu_to_le64(FIO_PROBE_FLAG_ZLIB);
835 return fio_net_queue_cmd(FIO_NET_CMD_PROBE, &probe, sizeof(probe), &tag, SK_F_COPY);
838 static int handle_send_eta_cmd(struct fio_net_cmd *cmd)
841 uint64_t tag = cmd->tag;
845 dprint(FD_NET, "server sending status\n");
848 * Fake ETA return if we don't have a local one, otherwise the client
849 * will end up timing out waiting for a response to the ETA request
851 je = get_jobs_eta(true, &size);
854 je = calloc(1, size);
856 je->nr_running = cpu_to_le32(je->nr_running);
857 je->nr_ramp = cpu_to_le32(je->nr_ramp);
858 je->nr_pending = cpu_to_le32(je->nr_pending);
859 je->nr_setting_up = cpu_to_le32(je->nr_setting_up);
860 je->files_open = cpu_to_le32(je->files_open);
862 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
863 je->m_rate[i] = cpu_to_le32(je->m_rate[i]);
864 je->t_rate[i] = cpu_to_le32(je->t_rate[i]);
865 je->m_iops[i] = cpu_to_le32(je->m_iops[i]);
866 je->t_iops[i] = cpu_to_le32(je->t_iops[i]);
867 je->rate[i] = cpu_to_le32(je->rate[i]);
868 je->iops[i] = cpu_to_le32(je->iops[i]);
871 je->elapsed_sec = cpu_to_le64(je->elapsed_sec);
872 je->eta_sec = cpu_to_le64(je->eta_sec);
873 je->nr_threads = cpu_to_le32(je->nr_threads);
874 je->is_pow2 = cpu_to_le32(je->is_pow2);
875 je->unit_base = cpu_to_le32(je->unit_base);
878 fio_net_queue_cmd(FIO_NET_CMD_ETA, je, size, &tag, SK_F_FREE);
882 static int send_update_job_reply(uint64_t __tag, int error)
884 uint64_t tag = __tag;
887 pdu_error = __cpu_to_le32(error);
888 return fio_net_queue_cmd(FIO_NET_CMD_UPDATE_JOB, &pdu_error, sizeof(pdu_error), &tag, SK_F_COPY);
891 static int handle_update_job_cmd(struct fio_net_cmd *cmd)
893 struct cmd_add_job_pdu *pdu = (struct cmd_add_job_pdu *) cmd->payload;
894 struct thread_data *td;
897 tnumber = le32_to_cpu(pdu->thread_number);
899 dprint(FD_NET, "server: updating options for job %u\n", tnumber);
901 if (!tnumber || tnumber > thread_number) {
902 send_update_job_reply(cmd->tag, ENODEV);
906 td = &threads[tnumber - 1];
907 convert_thread_options_to_cpu(&td->o, &pdu->top);
908 send_update_job_reply(cmd->tag, 0);
912 static int handle_trigger_cmd(struct fio_net_cmd *cmd)
914 struct cmd_vtrigger_pdu *pdu = (struct cmd_vtrigger_pdu *) cmd->payload;
915 char *buf = (char *) pdu->cmd;
916 struct all_io_list *rep;
919 pdu->len = le16_to_cpu(pdu->len);
920 buf[pdu->len] = '\0';
922 rep = get_all_io_list(IO_LIST_ALL, &sz);
924 struct all_io_list state;
926 state.threads = cpu_to_le64((uint64_t) 0);
927 fio_net_queue_cmd(FIO_NET_CMD_VTRIGGER, &state, sizeof(state), NULL, SK_F_COPY);
929 fio_net_queue_cmd(FIO_NET_CMD_VTRIGGER, rep, sz, NULL, SK_F_FREE);
935 static int handle_command(struct sk_out *sk_out, struct flist_head *job_list,
936 struct fio_net_cmd *cmd)
940 dprint(FD_NET, "server: got op [%s], pdu=%u, tag=%llx\n",
941 fio_server_op(cmd->opcode), cmd->pdu_len,
942 (unsigned long long) cmd->tag);
944 switch (cmd->opcode) {
945 case FIO_NET_CMD_QUIT:
946 fio_terminate_threads(TERMINATE_ALL);
949 case FIO_NET_CMD_EXIT:
952 case FIO_NET_CMD_LOAD_FILE:
953 ret = handle_load_file_cmd(cmd);
955 case FIO_NET_CMD_JOB:
956 ret = handle_job_cmd(cmd);
958 case FIO_NET_CMD_JOBLINE:
959 ret = handle_jobline_cmd(cmd);
961 case FIO_NET_CMD_PROBE:
962 ret = handle_probe_cmd(cmd);
964 case FIO_NET_CMD_SEND_ETA:
965 ret = handle_send_eta_cmd(cmd);
967 case FIO_NET_CMD_RUN:
968 ret = handle_run_cmd(sk_out, job_list, cmd);
970 case FIO_NET_CMD_UPDATE_JOB:
971 ret = handle_update_job_cmd(cmd);
973 case FIO_NET_CMD_VTRIGGER:
974 ret = handle_trigger_cmd(cmd);
976 case FIO_NET_CMD_SENDFILE: {
977 struct cmd_sendfile_reply *in;
978 struct cmd_reply *rep;
980 rep = (struct cmd_reply *) (uintptr_t) cmd->tag;
982 in = (struct cmd_sendfile_reply *) cmd->payload;
983 in->size = le32_to_cpu(in->size);
984 in->error = le32_to_cpu(in->error);
987 rep->error = in->error;
990 rep->data = smalloc(in->size);
995 rep->size = in->size;
996 memcpy(rep->data, in->data, in->size);
999 fio_mutex_up(&rep->lock);
1003 log_err("fio: unknown opcode: %s\n", fio_server_op(cmd->opcode));
1011 * Send a command with a separate PDU, not inlined in the command
1013 static int fio_send_cmd_ext_pdu(int sk, uint16_t opcode, const void *buf,
1014 off_t size, uint64_t tag, uint32_t flags)
1016 struct fio_net_cmd cmd;
1017 struct iovec iov[2];
1019 iov[0].iov_base = (void *) &cmd;
1020 iov[0].iov_len = sizeof(cmd);
1021 iov[1].iov_base = (void *) buf;
1022 iov[1].iov_len = size;
1024 __fio_init_net_cmd(&cmd, opcode, size, tag);
1025 cmd.flags = __cpu_to_le32(flags);
1026 fio_net_cmd_crc_pdu(&cmd, buf);
1028 return fio_sendv_data(sk, iov, 2);
1031 static void finish_entry(struct sk_entry *entry)
1033 if (entry->flags & SK_F_FREE)
1035 else if (entry->flags & SK_F_COPY)
1041 static void entry_set_flags_tag(struct sk_entry *entry, struct flist_head *list,
1042 unsigned int *flags, uint64_t *tag)
1044 if (!flist_empty(list))
1045 *flags = FIO_NET_CMD_F_MORE;
1050 *tag = *entry->tagptr;
1055 static int send_vec_entry(struct sk_out *sk_out, struct sk_entry *first)
1061 entry_set_flags_tag(first, &first->next, &flags, &tag);
1063 ret = fio_send_cmd_ext_pdu(sk_out->sk, first->opcode, first->buf, first->size, tag, flags);
1065 while (!flist_empty(&first->next)) {
1066 struct sk_entry *next;
1068 next = flist_first_entry(&first->next, struct sk_entry, list);
1069 flist_del_init(&next->list);
1071 entry_set_flags_tag(next, &first->next, &flags, &tag);
1073 ret += fio_send_cmd_ext_pdu(sk_out->sk, next->opcode, next->buf, next->size, tag, flags);
1080 static int handle_sk_entry(struct sk_out *sk_out, struct sk_entry *entry)
1084 if (entry->flags & SK_F_VEC)
1085 ret = send_vec_entry(sk_out, entry);
1086 if (entry->flags & SK_F_SIMPLE) {
1090 tag = *entry->tagptr;
1092 ret = fio_net_send_simple_cmd(sk_out->sk, entry->opcode, tag, NULL);
1094 ret = fio_net_send_cmd(sk_out->sk, entry->opcode, entry->buf, entry->size, entry->tagptr, NULL);
1097 log_err("fio: failed handling cmd %s\n", fio_server_op(entry->opcode));
1099 finish_entry(entry);
1103 static int handle_xmits(struct sk_out *sk_out)
1105 struct sk_entry *entry;
1110 if (flist_empty(&sk_out->list)) {
1115 flist_splice_init(&sk_out->list, &list);
1118 while (!flist_empty(&list)) {
1119 entry = flist_entry(list.next, struct sk_entry, list);
1120 flist_del(&entry->list);
1121 ret += handle_sk_entry(sk_out, entry);
1127 static int handle_connection(struct sk_out *sk_out)
1129 struct fio_net_cmd *cmd = NULL;
1130 FLIST_HEAD(job_list);
1136 while (!exit_backend) {
1137 struct pollfd pfd = {
1146 if (!flist_empty(&job_list))
1149 handle_xmits(sk_out);
1151 ret = poll(&pfd, 1, 0);
1155 log_err("fio: poll: %s\n", strerror(errno));
1158 fio_server_check_jobs(&job_list);
1159 fio_mutex_down_timeout(sk_out->wait, timeout);
1163 if (pfd.revents & POLLIN)
1165 if (pfd.revents & (POLLERR|POLLHUP)) {
1169 } while (!exit_backend);
1171 fio_server_check_jobs(&job_list);
1176 cmd = fio_net_recv_cmd(sk_out->sk);
1182 ret = handle_command(sk_out, &job_list, cmd);
1193 handle_xmits(sk_out);
1197 __sk_out_drop(sk_out);
1201 /* get the address on this host bound by the input socket,
1202 * whether it is ipv6 or ipv4 */
1204 int get_my_addr_str(int sk)
1206 struct sockaddr_in6 myaddr6 = { 0, };
1207 struct sockaddr_in myaddr4 = { 0, };
1208 struct sockaddr *sockaddr_p;
1214 len = sizeof(myaddr6);
1215 sockaddr_p = (struct sockaddr * )&myaddr6;
1216 net_addr = (char * )&myaddr6.sin6_addr;
1218 len = sizeof(myaddr4);
1219 sockaddr_p = (struct sockaddr * )&myaddr4;
1220 net_addr = (char * )&myaddr4.sin_addr;
1223 ret = getsockname(sk, sockaddr_p, &len);
1225 log_err("fio: getsockaddr: %s\n", strerror(errno));
1229 if (!inet_ntop(use_ipv6?AF_INET6:AF_INET, net_addr, client_sockaddr_str, INET6_ADDRSTRLEN - 1)) {
1230 log_err("inet_ntop: failed to convert addr to string\n");
1234 dprint(FD_NET, "fio server bound to addr %s\n", client_sockaddr_str);
1238 static int accept_loop(struct sk_out *sk_out, int listen_sk)
1240 struct sockaddr_in addr;
1241 struct sockaddr_in6 addr6;
1242 socklen_t len = use_ipv6 ? sizeof(addr6) : sizeof(addr);
1244 int ret = 0, sk, exitval = 0;
1245 FLIST_HEAD(conn_list);
1247 dprint(FD_NET, "server enter accept loop\n");
1249 fio_set_fd_nonblocking(listen_sk, "server");
1251 while (!exit_backend) {
1257 pfd.events = POLLIN;
1261 if (!flist_empty(&conn_list))
1264 ret = poll(&pfd, 1, timeout);
1268 log_err("fio: poll: %s\n", strerror(errno));
1271 fio_server_check_conns(&conn_list);
1275 if (pfd.revents & POLLIN)
1277 } while (!exit_backend);
1279 fio_server_check_conns(&conn_list);
1281 if (exit_backend || ret < 0)
1285 sk = accept(listen_sk, (struct sockaddr *) &addr6, &len);
1287 sk = accept(listen_sk, (struct sockaddr *) &addr, &len);
1290 log_err("fio: accept: %s\n", strerror(errno));
1295 from = inet_ntop(AF_INET6, (struct sockaddr *) &addr6.sin6_addr, buf, sizeof(buf));
1297 from = inet_ntop(AF_INET, (struct sockaddr *) &addr.sin_addr, buf, sizeof(buf));
1299 dprint(FD_NET, "server: connect from %s\n", from);
1301 sk_out = smalloc(sizeof(*sk_out));
1303 INIT_FLIST_HEAD(&sk_out->list);
1304 sk_out->lock = fio_mutex_init(FIO_MUTEX_UNLOCKED);
1305 sk_out->wait = fio_mutex_init(FIO_MUTEX_LOCKED);
1310 fio_server_add_conn_pid(&conn_list, pid);
1314 /* if error, it's already logged, non-fatal */
1315 get_my_addr_str(sk);
1318 * Assign sk_out here, it'll be dropped in handle_connection()
1319 * since that function calls _exit() when done
1321 sk_out_assign(sk_out);
1322 handle_connection(sk_out);
1328 int fio_server_text_output(int level, const char *buf, size_t len)
1330 struct sk_out *sk_out = pthread_getspecific(sk_out_key);
1331 struct cmd_text_pdu *pdu;
1335 if (!sk_out || sk_out->sk == -1)
1338 tlen = sizeof(*pdu) + len;
1341 pdu->level = __cpu_to_le32(level);
1342 pdu->buf_len = __cpu_to_le32(len);
1344 gettimeofday(&tv, NULL);
1345 pdu->log_sec = __cpu_to_le64(tv.tv_sec);
1346 pdu->log_usec = __cpu_to_le64(tv.tv_usec);
1348 memcpy(pdu->buf, buf, len);
1350 fio_net_queue_cmd(FIO_NET_CMD_TEXT, pdu, tlen, NULL, SK_F_COPY);
1355 static void convert_io_stat(struct io_stat *dst, struct io_stat *src)
1357 dst->max_val = cpu_to_le64(src->max_val);
1358 dst->min_val = cpu_to_le64(src->min_val);
1359 dst->samples = cpu_to_le64(src->samples);
1362 * Encode to IEEE 754 for network transfer
1364 dst->mean.u.i = cpu_to_le64(fio_double_to_uint64(src->mean.u.f));
1365 dst->S.u.i = cpu_to_le64(fio_double_to_uint64(src->S.u.f));
1368 static void convert_gs(struct group_run_stats *dst, struct group_run_stats *src)
1372 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1373 dst->max_run[i] = cpu_to_le64(src->max_run[i]);
1374 dst->min_run[i] = cpu_to_le64(src->min_run[i]);
1375 dst->max_bw[i] = cpu_to_le64(src->max_bw[i]);
1376 dst->min_bw[i] = cpu_to_le64(src->min_bw[i]);
1377 dst->io_kb[i] = cpu_to_le64(src->io_kb[i]);
1378 dst->agg[i] = cpu_to_le64(src->agg[i]);
1381 dst->kb_base = cpu_to_le32(src->kb_base);
1382 dst->unit_base = cpu_to_le32(src->unit_base);
1383 dst->groupid = cpu_to_le32(src->groupid);
1384 dst->unified_rw_rep = cpu_to_le32(src->unified_rw_rep);
1388 * Send a CMD_TS, which packs struct thread_stat and group_run_stats
1389 * into a single payload.
1391 void fio_server_send_ts(struct thread_stat *ts, struct group_run_stats *rs)
1393 struct cmd_ts_pdu p;
1396 dprint(FD_NET, "server sending end stats\n");
1398 memset(&p, 0, sizeof(p));
1400 strncpy(p.ts.name, ts->name, FIO_JOBNAME_SIZE - 1);
1401 strncpy(p.ts.verror, ts->verror, FIO_VERROR_SIZE - 1);
1402 strncpy(p.ts.description, ts->description, FIO_JOBDESC_SIZE - 1);
1404 p.ts.error = cpu_to_le32(ts->error);
1405 p.ts.thread_number = cpu_to_le32(ts->thread_number);
1406 p.ts.groupid = cpu_to_le32(ts->groupid);
1407 p.ts.pid = cpu_to_le32(ts->pid);
1408 p.ts.members = cpu_to_le32(ts->members);
1409 p.ts.unified_rw_rep = cpu_to_le32(ts->unified_rw_rep);
1411 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1412 convert_io_stat(&p.ts.clat_stat[i], &ts->clat_stat[i]);
1413 convert_io_stat(&p.ts.slat_stat[i], &ts->slat_stat[i]);
1414 convert_io_stat(&p.ts.lat_stat[i], &ts->lat_stat[i]);
1415 convert_io_stat(&p.ts.bw_stat[i], &ts->bw_stat[i]);
1418 p.ts.usr_time = cpu_to_le64(ts->usr_time);
1419 p.ts.sys_time = cpu_to_le64(ts->sys_time);
1420 p.ts.ctx = cpu_to_le64(ts->ctx);
1421 p.ts.minf = cpu_to_le64(ts->minf);
1422 p.ts.majf = cpu_to_le64(ts->majf);
1423 p.ts.clat_percentiles = cpu_to_le64(ts->clat_percentiles);
1424 p.ts.percentile_precision = cpu_to_le64(ts->percentile_precision);
1426 for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) {
1427 fio_fp64_t *src = &ts->percentile_list[i];
1428 fio_fp64_t *dst = &p.ts.percentile_list[i];
1430 dst->u.i = cpu_to_le64(fio_double_to_uint64(src->u.f));
1433 for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
1434 p.ts.io_u_map[i] = cpu_to_le32(ts->io_u_map[i]);
1435 p.ts.io_u_submit[i] = cpu_to_le32(ts->io_u_submit[i]);
1436 p.ts.io_u_complete[i] = cpu_to_le32(ts->io_u_complete[i]);
1439 for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) {
1440 p.ts.io_u_lat_u[i] = cpu_to_le32(ts->io_u_lat_u[i]);
1441 p.ts.io_u_lat_m[i] = cpu_to_le32(ts->io_u_lat_m[i]);
1444 for (i = 0; i < DDIR_RWDIR_CNT; i++)
1445 for (j = 0; j < FIO_IO_U_PLAT_NR; j++)
1446 p.ts.io_u_plat[i][j] = cpu_to_le32(ts->io_u_plat[i][j]);
1448 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1449 p.ts.total_io_u[i] = cpu_to_le64(ts->total_io_u[i]);
1450 p.ts.short_io_u[i] = cpu_to_le64(ts->short_io_u[i]);
1451 p.ts.drop_io_u[i] = cpu_to_le64(ts->drop_io_u[i]);
1454 p.ts.total_submit = cpu_to_le64(ts->total_submit);
1455 p.ts.total_complete = cpu_to_le64(ts->total_complete);
1457 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1458 p.ts.io_bytes[i] = cpu_to_le64(ts->io_bytes[i]);
1459 p.ts.runtime[i] = cpu_to_le64(ts->runtime[i]);
1462 p.ts.total_run_time = cpu_to_le64(ts->total_run_time);
1463 p.ts.continue_on_error = cpu_to_le16(ts->continue_on_error);
1464 p.ts.total_err_count = cpu_to_le64(ts->total_err_count);
1465 p.ts.first_error = cpu_to_le32(ts->first_error);
1466 p.ts.kb_base = cpu_to_le32(ts->kb_base);
1467 p.ts.unit_base = cpu_to_le32(ts->unit_base);
1469 p.ts.latency_depth = cpu_to_le32(ts->latency_depth);
1470 p.ts.latency_target = cpu_to_le64(ts->latency_target);
1471 p.ts.latency_window = cpu_to_le64(ts->latency_window);
1472 p.ts.latency_percentile.u.i = cpu_to_le64(fio_double_to_uint64(ts->latency_percentile.u.f));
1474 p.ts.nr_block_infos = le64_to_cpu(ts->nr_block_infos);
1475 for (i = 0; i < p.ts.nr_block_infos; i++)
1476 p.ts.block_infos[i] = le32_to_cpu(ts->block_infos[i]);
1478 convert_gs(&p.rs, rs);
1480 fio_net_queue_cmd(FIO_NET_CMD_TS, &p, sizeof(p), NULL, SK_F_COPY);
1483 void fio_server_send_gs(struct group_run_stats *rs)
1485 struct group_run_stats gs;
1487 dprint(FD_NET, "server sending group run stats\n");
1489 convert_gs(&gs, rs);
1490 fio_net_queue_cmd(FIO_NET_CMD_GS, &gs, sizeof(gs), NULL, SK_F_COPY);
1493 static void convert_agg(struct disk_util_agg *dst, struct disk_util_agg *src)
1497 for (i = 0; i < 2; i++) {
1498 dst->ios[i] = cpu_to_le64(src->ios[i]);
1499 dst->merges[i] = cpu_to_le64(src->merges[i]);
1500 dst->sectors[i] = cpu_to_le64(src->sectors[i]);
1501 dst->ticks[i] = cpu_to_le64(src->ticks[i]);
1504 dst->io_ticks = cpu_to_le64(src->io_ticks);
1505 dst->time_in_queue = cpu_to_le64(src->time_in_queue);
1506 dst->slavecount = cpu_to_le32(src->slavecount);
1507 dst->max_util.u.i = cpu_to_le64(fio_double_to_uint64(src->max_util.u.f));
1510 static void convert_dus(struct disk_util_stat *dst, struct disk_util_stat *src)
1514 dst->name[FIO_DU_NAME_SZ - 1] = '\0';
1515 strncpy((char *) dst->name, (char *) src->name, FIO_DU_NAME_SZ - 1);
1517 for (i = 0; i < 2; i++) {
1518 dst->s.ios[i] = cpu_to_le64(src->s.ios[i]);
1519 dst->s.merges[i] = cpu_to_le64(src->s.merges[i]);
1520 dst->s.sectors[i] = cpu_to_le64(src->s.sectors[i]);
1521 dst->s.ticks[i] = cpu_to_le64(src->s.ticks[i]);
1524 dst->s.io_ticks = cpu_to_le64(src->s.io_ticks);
1525 dst->s.time_in_queue = cpu_to_le64(src->s.time_in_queue);
1526 dst->s.msec = cpu_to_le64(src->s.msec);
1529 void fio_server_send_du(void)
1531 struct disk_util *du;
1532 struct flist_head *entry;
1533 struct cmd_du_pdu pdu;
1535 dprint(FD_NET, "server: sending disk_util %d\n", !flist_empty(&disk_list));
1537 memset(&pdu, 0, sizeof(pdu));
1539 flist_for_each(entry, &disk_list) {
1540 du = flist_entry(entry, struct disk_util, list);
1542 convert_dus(&pdu.dus, &du->dus);
1543 convert_agg(&pdu.agg, &du->agg);
1545 fio_net_queue_cmd(FIO_NET_CMD_DU, &pdu, sizeof(pdu), NULL, SK_F_COPY);
1549 static int fio_send_iolog_gz(struct sk_entry *first, struct io_log *log)
1553 struct sk_entry *entry;
1558 * Dirty - since the log is potentially huge, compress it into
1559 * FIO_SERVER_MAX_FRAGMENT_PDU chunks and let the receiving
1560 * side defragment it.
1562 out_pdu = malloc(FIO_SERVER_MAX_FRAGMENT_PDU);
1564 stream.zalloc = Z_NULL;
1565 stream.zfree = Z_NULL;
1566 stream.opaque = Z_NULL;
1568 if (deflateInit(&stream, Z_DEFAULT_COMPRESSION) != Z_OK) {
1573 stream.next_in = (void *) log->log;
1574 stream.avail_in = log->nr_samples * log_entry_sz(log);
1577 unsigned int this_len;
1579 stream.avail_out = FIO_SERVER_MAX_FRAGMENT_PDU;
1580 stream.next_out = out_pdu;
1581 ret = deflate(&stream, Z_FINISH);
1582 /* may be Z_OK, or Z_STREAM_END */
1586 this_len = FIO_SERVER_MAX_FRAGMENT_PDU - stream.avail_out;
1588 entry = fio_net_prep_cmd(FIO_NET_CMD_IOLOG, out_pdu, this_len,
1589 NULL, SK_F_FREE | SK_F_VEC);
1590 flist_add_tail(&entry->list, &first->next);
1591 } while (stream.avail_in);
1594 deflateEnd(&stream);
1601 int fio_send_iolog(struct thread_data *td, struct io_log *log, const char *name)
1603 struct cmd_iolog_pdu pdu;
1604 struct sk_entry *first;
1607 pdu.nr_samples = cpu_to_le64(log->nr_samples);
1608 pdu.thread_number = cpu_to_le32(td->thread_number);
1609 pdu.log_type = cpu_to_le32(log->log_type);
1610 pdu.compressed = cpu_to_le32(use_zlib);
1612 strncpy((char *) pdu.name, name, FIO_NET_NAME_MAX);
1613 pdu.name[FIO_NET_NAME_MAX - 1] = '\0';
1615 for (i = 0; i < log->nr_samples; i++) {
1616 struct io_sample *s = get_sample(log, i);
1618 s->time = cpu_to_le64(s->time);
1619 s->val = cpu_to_le64(s->val);
1620 s->__ddir = cpu_to_le32(s->__ddir);
1621 s->bs = cpu_to_le32(s->bs);
1623 if (log->log_offset) {
1624 struct io_sample_offset *so = (void *) s;
1626 so->offset = cpu_to_le64(so->offset);
1631 * Assemble header entry first
1633 first = fio_net_prep_cmd(FIO_NET_CMD_IOLOG, &pdu, sizeof(pdu), NULL, SK_F_COPY | SK_F_VEC);
1636 * Now append actual log entries. Compress if we can, otherwise just
1637 * plain text output.
1640 ret = fio_send_iolog_gz(first, log);
1642 struct sk_entry *entry;
1644 entry = fio_net_prep_cmd(FIO_NET_CMD_IOLOG, log->log,
1645 log->nr_samples * log_entry_sz(log),
1646 NULL, SK_F_FREE | SK_F_VEC);
1647 flist_add_tail(&entry->list, &first->next);
1653 void fio_server_send_add_job(struct thread_data *td)
1655 struct cmd_add_job_pdu pdu;
1657 memset(&pdu, 0, sizeof(pdu));
1658 pdu.thread_number = cpu_to_le32(td->thread_number);
1659 pdu.groupid = cpu_to_le32(td->groupid);
1660 convert_thread_options_to_net(&pdu.top, &td->o);
1662 fio_net_queue_cmd(FIO_NET_CMD_ADD_JOB, &pdu, sizeof(pdu), NULL, SK_F_COPY);
1665 void fio_server_send_start(struct thread_data *td)
1667 struct sk_out *sk_out = pthread_getspecific(sk_out_key);
1669 assert(sk_out->sk != -1);
1671 fio_net_queue_cmd(FIO_NET_CMD_SERVER_START, NULL, 0, 0, SK_F_SIMPLE);
1674 int fio_server_get_verify_state(const char *name, int threadnumber,
1675 void **datap, int *version)
1677 struct thread_io_list *s;
1678 struct cmd_sendfile out;
1679 struct cmd_reply *rep;
1683 dprint(FD_NET, "server: request verify state\n");
1685 rep = smalloc(sizeof(*rep));
1687 log_err("fio: smalloc pool too small\n");
1691 __fio_mutex_init(&rep->lock, FIO_MUTEX_LOCKED);
1695 verify_state_gen_name((char *) out.path, sizeof(out.path), name, me,
1697 tag = (uint64_t) (uintptr_t) rep;
1698 fio_net_queue_cmd(FIO_NET_CMD_SENDFILE, &out, sizeof(out), &tag, SK_F_COPY);
1701 * Wait for the backend to receive the reply
1703 if (fio_mutex_down_timeout(&rep->lock, 10000)) {
1704 log_err("fio: timed out waiting for reply\n");
1709 log_err("fio: failure on receiving state file: %s\n", strerror(rep->error));
1713 fio_net_queue_quit();
1718 * The format is verify_state_hdr, then thread_io_list. Verify
1719 * the header, and the thread_io_list checksum
1721 s = rep->data + sizeof(struct verify_state_hdr);
1722 if (verify_state_hdr(rep->data, s, version))
1726 * Don't need the header from now, copy just the thread_io_list
1728 rep->size -= sizeof(struct verify_state_hdr);
1729 data = malloc(rep->size);
1730 memcpy(data, s, rep->size);
1734 __fio_mutex_remove(&rep->lock);
1739 static int fio_init_server_ip(void)
1741 struct sockaddr *addr;
1748 sk = socket(AF_INET6, SOCK_STREAM, 0);
1750 sk = socket(AF_INET, SOCK_STREAM, 0);
1753 log_err("fio: socket: %s\n", strerror(errno));
1758 if (setsockopt(sk, SOL_SOCKET, SO_REUSEADDR, (void *)&opt, sizeof(opt)) < 0) {
1759 log_err("fio: setsockopt(REUSEADDR): %s\n", strerror(errno));
1764 if (setsockopt(sk, SOL_SOCKET, SO_REUSEPORT, &opt, sizeof(opt)) < 0) {
1765 log_err("fio: setsockopt(REUSEPORT): %s\n", strerror(errno));
1772 const void *src = &saddr_in6.sin6_addr;
1774 addr = (struct sockaddr *) &saddr_in6;
1775 socklen = sizeof(saddr_in6);
1776 saddr_in6.sin6_family = AF_INET6;
1777 str = inet_ntop(AF_INET6, src, buf, sizeof(buf));
1779 const void *src = &saddr_in.sin_addr;
1781 addr = (struct sockaddr *) &saddr_in;
1782 socklen = sizeof(saddr_in);
1783 saddr_in.sin_family = AF_INET;
1784 str = inet_ntop(AF_INET, src, buf, sizeof(buf));
1787 if (bind(sk, addr, socklen) < 0) {
1788 log_err("fio: bind: %s\n", strerror(errno));
1789 log_info("fio: failed with IPv%c %s\n", use_ipv6 ? '6' : '4', str);
1797 static int fio_init_server_sock(void)
1799 struct sockaddr_un addr;
1804 sk = socket(AF_UNIX, SOCK_STREAM, 0);
1806 log_err("fio: socket: %s\n", strerror(errno));
1812 memset(&addr, 0, sizeof(addr));
1813 addr.sun_family = AF_UNIX;
1814 strncpy(addr.sun_path, bind_sock, sizeof(addr.sun_path) - 1);
1816 len = sizeof(addr.sun_family) + strlen(bind_sock) + 1;
1818 if (bind(sk, (struct sockaddr *) &addr, len) < 0) {
1819 log_err("fio: bind: %s\n", strerror(errno));
1828 static int fio_init_server_connection(void)
1833 dprint(FD_NET, "starting server\n");
1836 sk = fio_init_server_ip();
1838 sk = fio_init_server_sock();
1843 memset(bind_str, 0, sizeof(bind_str));
1852 src = &saddr_in6.sin6_addr;
1855 src = &saddr_in.sin_addr;
1858 p = (char *) inet_ntop(af, src, bind_str, sizeof(bind_str));
1860 sprintf(port, ",%u", fio_net_port);
1864 strncpy(bind_str, port, sizeof(bind_str) - 1);
1866 strncpy(bind_str, bind_sock, sizeof(bind_str) - 1);
1868 log_info("fio: server listening on %s\n", bind_str);
1870 if (listen(sk, 0) < 0) {
1871 log_err("fio: listen: %s\n", strerror(errno));
1879 int fio_server_parse_host(const char *host, int ipv6, struct in_addr *inp,
1880 struct in6_addr *inp6)
1886 ret = inet_pton(AF_INET6, host, inp6);
1888 ret = inet_pton(AF_INET, host, inp);
1891 struct addrinfo hints, *res;
1893 memset(&hints, 0, sizeof(hints));
1894 hints.ai_family = ipv6 ? AF_INET6 : AF_INET;
1895 hints.ai_socktype = SOCK_STREAM;
1897 ret = getaddrinfo(host, NULL, &hints, &res);
1899 log_err("fio: failed to resolve <%s> (%s)\n", host,
1905 memcpy(inp6, &((struct sockaddr_in6 *) res->ai_addr)->sin6_addr, sizeof(*inp6));
1907 memcpy(inp, &((struct sockaddr_in *) res->ai_addr)->sin_addr, sizeof(*inp));
1917 * Parse a host/ip/port string. Reads from 'str'.
1922 * *ptr is the host, *port is the port, inp is the destination.
1924 * *ptr is the host, *port is the port, inp6 is the dest, and *ipv6 is 1.
1925 * For local domain sockets:
1926 * *ptr is the filename, *is_sock is 1.
1928 int fio_server_parse_string(const char *str, char **ptr, int *is_sock,
1929 int *port, struct in_addr *inp,
1930 struct in6_addr *inp6, int *ipv6)
1932 const char *host = str;
1938 *port = fio_net_port;
1941 if (!strncmp(str, "sock:", 5)) {
1942 *ptr = strdup(str + 5);
1949 * Is it ip:<ip or host>:port
1951 if (!strncmp(host, "ip:", 3))
1953 else if (!strncmp(host, "ip4:", 4))
1955 else if (!strncmp(host, "ip6:", 4)) {
1958 } else if (host[0] == ':') {
1959 /* String is :port */
1962 if (!lport || lport > 65535) {
1963 log_err("fio: bad server port %u\n", lport);
1966 /* no hostname given, we are done */
1972 * If no port seen yet, check if there's a last ',' at the end
1975 portp = strchr(host, ',');
1979 lport = atoi(portp);
1980 if (!lport || lport > 65535) {
1981 log_err("fio: bad server port %u\n", lport);
1993 *ptr = strdup(host);
1995 if (fio_server_parse_host(*ptr, *ipv6, inp, inp6)) {
2002 *port = fio_net_port;
2008 * Server arg should be one of:
2010 * sock:/path/to/socket
2014 * Where sock uses unix domain sockets, and ip binds the server to
2015 * a specific interface. If no arguments are given to the server, it
2016 * uses IP and binds to 0.0.0.0.
2019 static int fio_handle_server_arg(void)
2021 int port = fio_net_port;
2022 int is_sock, ret = 0;
2024 saddr_in.sin_addr.s_addr = htonl(INADDR_ANY);
2026 if (!fio_server_arg)
2029 ret = fio_server_parse_string(fio_server_arg, &bind_sock, &is_sock,
2030 &port, &saddr_in.sin_addr,
2031 &saddr_in6.sin6_addr, &use_ipv6);
2033 if (!is_sock && bind_sock) {
2039 fio_net_port = port;
2040 saddr_in.sin_port = htons(port);
2041 saddr_in6.sin6_port = htons(port);
2045 static void sig_int(int sig)
2051 static void set_sig_handlers(void)
2053 struct sigaction act;
2055 memset(&act, 0, sizeof(act));
2056 act.sa_handler = sig_int;
2057 act.sa_flags = SA_RESTART;
2058 sigaction(SIGINT, &act, NULL);
2061 static int fio_server(void)
2063 struct sk_out *sk_out;
2066 dprint(FD_NET, "starting server\n");
2068 if (fio_handle_server_arg())
2071 sk = fio_init_server_connection();
2077 if (pthread_key_create(&sk_out_key, NULL))
2078 log_err("fio: can't create sk_out backend key\n");
2080 ret = accept_loop(sk_out, sk);
2084 if (fio_server_arg) {
2085 free(fio_server_arg);
2086 fio_server_arg = NULL;
2094 void fio_server_got_signal(int signal)
2096 struct sk_out *sk_out = pthread_getspecific(sk_out_key);
2100 if (signal == SIGPIPE)
2103 log_info("\nfio: terminating on signal %d\n", signal);
2108 static int check_existing_pidfile(const char *pidfile)
2115 if (stat(pidfile, &sb))
2118 f = fopen(pidfile, "r");
2122 if (fread(buf, sb.st_size, 1, f) <= 0) {
2129 if (kill(pid, SIGCONT) < 0)
2130 return errno != ESRCH;
2135 static int write_pid(pid_t pid, const char *pidfile)
2139 fpid = fopen(pidfile, "w");
2141 log_err("fio: failed opening pid file %s\n", pidfile);
2145 fprintf(fpid, "%u\n", (unsigned int) pid);
2151 * If pidfile is specified, background us.
2153 int fio_start_server(char *pidfile)
2160 WSAStartup(MAKEWORD(2, 2), &wsd);
2164 return fio_server();
2166 if (check_existing_pidfile(pidfile)) {
2167 log_err("fio: pidfile %s exists and server appears alive\n",
2175 log_err("fio: failed server fork: %s", strerror(errno));
2179 ret = write_pid(pid, pidfile);
2185 openlog("fio", LOG_NDELAY|LOG_NOWAIT|LOG_PID, LOG_USER);
2187 close(STDIN_FILENO);
2188 close(STDOUT_FILENO);
2189 close(STDERR_FILENO);
2201 void fio_server_set_arg(const char *arg)
2203 fio_server_arg = strdup(arg);