#include <sys/poll.h>
#include <sys/types.h>
#include <sys/wait.h>
-#include <sys/mman.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+#include <sys/un.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <netdb.h>
#include <syslog.h>
+#include <signal.h>
#include "fio.h"
#include "server.h"
#include "crc/crc16.h"
+#include "lib/ieee754.h"
+
+#include "fio_version.h"
int fio_net_port = 8765;
int exit_backend = 0;
static int server_fd = -1;
+static char *fio_server_arg;
+static char *bind_sock;
+static struct sockaddr_in saddr_in;
+static int first_cmd_check;
+
+static const char *fio_server_ops[FIO_NET_CMD_NR] = {
+ "",
+ "QUIT",
+ "EXIT",
+ "JOB",
+ "JOBLINE",
+ "TEXT",
+ "TS",
+ "GS",
+ "SEND_ETA",
+ "ETA",
+ "PROBE",
+ "START",
+ "STOP",
+ "DISK_UTIL",
+ "RUN",
+};
+
+const char *fio_server_op(unsigned int op)
+{
+ static char buf[32];
+
+ if (op < FIO_NET_CMD_NR)
+ return fio_server_ops[op];
+
+ sprintf(buf, "UNKNOWN/%d", op);
+ return buf;
+}
int fio_send_data(int sk, const void *p, unsigned int len)
{
break;
else if (errno == EAGAIN || errno == EINTR)
continue;
+ else
+ break;
} while (!exit_backend);
if (!len)
break;
else if (errno == EAGAIN || errno == EINTR)
continue;
+ else
+ break;
} while (!exit_backend);
if (!len)
cmd->version = le16_to_cpu(cmd->version);
cmd->opcode = le16_to_cpu(cmd->opcode);
cmd->flags = le32_to_cpu(cmd->flags);
- cmd->serial = le64_to_cpu(cmd->serial);
+ cmd->tag = le64_to_cpu(cmd->tag);
cmd->pdu_len = le32_to_cpu(cmd->pdu_len);
switch (cmd->version) {
- case FIO_SERVER_VER1:
+ case FIO_SERVER_VER:
break;
default:
log_err("fio: bad server cmd version %d\n", cmd->version);
void *pdu = NULL;
do {
- struct pollfd pfd;
-
- pfd.fd = sk;
- pfd.events = POLLIN;
- ret = 0;
- do {
- ret = poll(&pfd, 1, 100);
- if (ret < 0) {
- if (errno == EINTR)
- break;
- log_err("fio: poll: %s\n", strerror(errno));
- break;
- } else if (!ret)
- continue;
-
- if (pfd.revents & POLLIN)
- break;
- if (pfd.revents & (POLLERR|POLLHUP)) {
- ret = 1;
- break;
- }
- } while (ret >= 0);
-
- if (ret < 0)
- break;
-
ret = fio_recv_data(sk, &cmd, sizeof(cmd));
if (ret)
break;
if (ret)
break;
- if (first)
- cmd_size = sizeof(cmd) + cmd.pdu_len;
- else
+ if (first) {
+ /* if this is text, add room for \0 at the end */
+ cmd_size = sizeof(cmd) + cmd.pdu_len + 1;
+ assert(!cmdret);
+ } else
cmd_size += cmd.pdu_len;
cmdret = realloc(cmdret, cmd_size);
if (first)
memcpy(cmdret, &cmd, sizeof(cmd));
- else
- assert(cmdret->opcode == cmd.opcode);
+ else if (cmdret->opcode != cmd.opcode) {
+ log_err("fio: fragment opcode mismatch (%d != %d)\n",
+ cmdret->opcode, cmd.opcode);
+ ret = 1;
+ break;
+ }
if (!cmd.pdu_len)
break;
if (ret) {
free(cmdret);
cmdret = NULL;
- } else if (cmdret)
+ } else if (cmdret) {
+ /* zero-terminate text input */
+ if (cmdret->pdu_len && (cmdret->opcode == FIO_NET_CMD_TEXT ||
+ cmdret->opcode == FIO_NET_CMD_JOB)) {
+ char *buf = (char *) cmdret->payload;
+
+ buf[cmdret->pdu_len ] = '\0';
+ }
+ /* frag flag is internal */
cmdret->flags &= ~FIO_NET_CMD_F_MORE;
+ }
return cmdret;
}
cmd->pdu_crc16 = __cpu_to_le16(crc16(cmd->payload, pdu_len));
}
-int fio_net_send_cmd(int fd, uint16_t opcode, const void *buf, off_t size)
+int fio_net_send_cmd(int fd, uint16_t opcode, const void *buf, off_t size,
+ uint64_t tag)
{
- struct fio_net_cmd *cmd;
- size_t this_len;
+ struct fio_net_cmd *cmd = NULL;
+ size_t this_len, cur_len = 0;
int ret;
do {
if (this_len > FIO_SERVER_MAX_PDU)
this_len = FIO_SERVER_MAX_PDU;
- cmd = malloc(sizeof(*cmd) + this_len);
+ if (!cmd || cur_len < sizeof(*cmd) + this_len) {
+ if (cmd)
+ free(cmd);
+
+ cur_len = sizeof(*cmd) + this_len;
+ cmd = malloc(cur_len);
+ }
- fio_init_net_cmd(cmd, opcode, buf, this_len);
+ fio_init_net_cmd(cmd, opcode, buf, this_len, tag);
if (this_len < size)
cmd->flags = __cpu_to_le32(FIO_NET_CMD_F_MORE);
fio_net_cmd_crc(cmd);
ret = fio_send_data(fd, cmd, sizeof(*cmd) + this_len);
- free(cmd);
size -= this_len;
buf += this_len;
} while (!ret && size);
+ if (cmd)
+ free(cmd);
+
return ret;
}
-int fio_net_send_simple_cmd(int sk, uint16_t opcode, uint64_t serial)
+static int fio_net_send_simple_stack_cmd(int sk, uint16_t opcode, uint64_t tag)
{
- struct fio_net_cmd cmd = {
- .version = __cpu_to_le16(FIO_SERVER_VER1),
- .opcode = cpu_to_le16(opcode),
- .serial = cpu_to_le64(serial),
- };
+ struct fio_net_cmd cmd;
+ fio_init_net_cmd(&cmd, opcode, NULL, 0, tag);
fio_net_cmd_crc(&cmd);
return fio_send_data(sk, &cmd, sizeof(cmd));
}
-static int send_quit_command(void)
+/*
+ * If 'list' is non-NULL, then allocate and store the sent command for
+ * later verification.
+ */
+int fio_net_send_simple_cmd(int sk, uint16_t opcode, uint64_t tag,
+ struct flist_head *list)
+{
+ struct fio_net_int_cmd *cmd;
+ int ret;
+
+ if (!list)
+ return fio_net_send_simple_stack_cmd(sk, opcode, tag);
+
+ cmd = malloc(sizeof(*cmd));
+
+ fio_init_net_cmd(&cmd->cmd, opcode, NULL, 0, (uintptr_t) cmd);
+ fio_net_cmd_crc(&cmd->cmd);
+
+ INIT_FLIST_HEAD(&cmd->list);
+ gettimeofday(&cmd->tv, NULL);
+ cmd->saved_tag = tag;
+
+ ret = fio_send_data(sk, &cmd->cmd, sizeof(cmd->cmd));
+ if (ret) {
+ free(cmd);
+ return ret;
+ }
+
+ flist_add_tail(&cmd->list, list);
+ return 0;
+}
+
+static int fio_server_send_quit_cmd(void)
{
dprint(FD_NET, "server: sending quit\n");
- return fio_net_send_simple_cmd(server_fd, FIO_NET_CMD_QUIT, 0);
+ return fio_net_send_simple_cmd(server_fd, FIO_NET_CMD_QUIT, 0, NULL);
}
-static int handle_cur_job(struct fio_net_cmd *cmd)
+static int handle_job_cmd(struct fio_net_cmd *cmd)
{
- void *buf = cmd->payload;
+ char *buf = (char *) cmd->payload;
+ struct cmd_start_pdu spdu;
+ struct cmd_end_pdu epdu;
int ret;
- parse_jobs_ini(buf, 1, 0);
+ if (parse_jobs_ini(buf, 1, 0)) {
+ fio_server_send_quit_cmd();
+ return -1;
+ }
+
+ spdu.jobs = cpu_to_le32(thread_number);
+ fio_net_send_cmd(server_fd, FIO_NET_CMD_START, &spdu, sizeof(spdu), 0);
+
ret = exec_run();
- send_quit_command();
+
+ epdu.error = ret;
+ fio_net_send_cmd(server_fd, FIO_NET_CMD_STOP, &epdu, sizeof(epdu), 0);
+
+ fio_server_send_quit_cmd();
+ reset_fio_state();
+ return ret;
+}
+
+static int handle_jobline_cmd(struct fio_net_cmd *cmd)
+{
+ void *pdu = cmd->payload;
+ struct cmd_single_line_pdu *cslp;
+ struct cmd_line_pdu *clp;
+ unsigned long offset;
+ char **argv;
+ int ret, i;
+
+ clp = pdu;
+ clp->lines = le16_to_cpu(clp->lines);
+ argv = malloc(clp->lines * sizeof(char *));
+ offset = sizeof(*clp);
+
+ dprint(FD_NET, "server: %d command line args\n", clp->lines);
+
+ for (i = 0; i < clp->lines; i++) {
+ cslp = pdu + offset;
+ argv[i] = (char *) cslp->text;
+
+ offset += sizeof(*cslp) + le16_to_cpu(cslp->len);
+ dprint(FD_NET, "server: %d: %s\n", i, argv[i]);
+ }
+
+ if (parse_cmd_line(clp->lines, argv)) {
+ fio_server_send_quit_cmd();
+ free(argv);
+ return -1;
+ }
+
+ free(argv);
+
+ fio_net_send_simple_cmd(server_fd, FIO_NET_CMD_START, 0, NULL);
+
+ ret = exec_run();
+ fio_server_send_quit_cmd();
reset_fio_state();
return ret;
}
{
struct cmd_probe_pdu probe;
+ dprint(FD_NET, "server: sending probe reply\n");
+
memset(&probe, 0, sizeof(probe));
gethostname((char *) probe.hostname, sizeof(probe.hostname));
- probe.fio_major = 1;
- probe.fio_minor = 58;
- probe.fio_patch = 0;
+#ifdef FIO_BIG_ENDIAN
+ probe.bigendian = 1;
+#endif
+ probe.fio_major = FIO_MAJOR;
+ probe.fio_minor = FIO_MINOR;
+ probe.fio_patch = FIO_PATCH;
+
+ probe.os = FIO_OS;
+ probe.arch = FIO_ARCH;
+
+ probe.bpp = sizeof(void *);
+
+ return fio_net_send_cmd(server_fd, FIO_NET_CMD_PROBE, &probe, sizeof(probe), cmd->tag);
+}
+
+static int handle_send_eta_cmd(struct fio_net_cmd *cmd)
+{
+ struct jobs_eta *je;
+ size_t size;
+ int i;
+
+ if (!thread_number)
+ return 0;
+
+ size = sizeof(*je) + thread_number * sizeof(char) + 1;
+ je = malloc(size);
+ memset(je, 0, size);
- return fio_net_send_cmd(server_fd, FIO_NET_CMD_PROBE, &probe, sizeof(probe));
+ if (!calc_thread_status(je, 1)) {
+ free(je);
+ return 0;
+ }
+
+ dprint(FD_NET, "server sending status\n");
+
+ je->nr_running = cpu_to_le32(je->nr_running);
+ je->nr_ramp = cpu_to_le32(je->nr_ramp);
+ je->nr_pending = cpu_to_le32(je->nr_pending);
+ je->files_open = cpu_to_le32(je->files_open);
+ je->m_rate = cpu_to_le32(je->m_rate);
+ je->t_rate = cpu_to_le32(je->t_rate);
+ je->m_iops = cpu_to_le32(je->m_iops);
+ je->t_iops = cpu_to_le32(je->t_iops);
+
+ for (i = 0; i < 2; i++) {
+ je->rate[i] = cpu_to_le32(je->rate[i]);
+ je->iops[i] = cpu_to_le32(je->iops[i]);
+ }
+
+ je->elapsed_sec = cpu_to_le32(je->nr_running);
+ je->eta_sec = cpu_to_le64(je->eta_sec);
+
+ fio_net_send_cmd(server_fd, FIO_NET_CMD_ETA, je, size, cmd->tag);
+ free(je);
+ return 0;
}
static int handle_command(struct fio_net_cmd *cmd)
{
int ret;
- dprint(FD_NET, "server: got opcode %d\n", cmd->opcode);
+ dprint(FD_NET, "server: got op [%s], pdu=%u, tag=%lx\n",
+ fio_server_op(cmd->opcode), cmd->pdu_len, cmd->tag);
switch (cmd->opcode) {
case FIO_NET_CMD_QUIT:
exit_backend = 1;
return -1;
case FIO_NET_CMD_JOB:
- ret = handle_cur_job(cmd);
+ ret = handle_job_cmd(cmd);
+ break;
+ case FIO_NET_CMD_JOBLINE:
+ ret = handle_jobline_cmd(cmd);
break;
case FIO_NET_CMD_PROBE:
ret = handle_probe_cmd(cmd);
break;
+ case FIO_NET_CMD_SEND_ETA:
+ ret = handle_send_eta_cmd(cmd);
+ break;
default:
- log_err("fio: unknown opcode: %d\n", cmd->opcode);
+ log_err("fio: unknown opcode: %s\n",fio_server_op(cmd->opcode));
ret = 1;
}
return ret;
}
-static int handle_connection(int sk)
+static int handle_connection(int sk, int block)
{
struct fio_net_cmd *cmd = NULL;
int ret = 0;
/* read forever */
while (!exit_backend) {
+ struct pollfd pfd = {
+ .fd = sk,
+ .events = POLLIN,
+ };
+
+ ret = 0;
+ do {
+ ret = poll(&pfd, 1, 100);
+ if (ret < 0) {
+ if (errno == EINTR)
+ break;
+ log_err("fio: poll: %s\n", strerror(errno));
+ break;
+ } else if (!ret) {
+ if (!block)
+ return 0;
+ continue;
+ }
+
+ if (pfd.revents & POLLIN)
+ break;
+ if (pfd.revents & (POLLERR|POLLHUP)) {
+ ret = 1;
+ break;
+ }
+ } while (!exit_backend);
+
+ if (ret < 0)
+ break;
+
cmd = fio_net_recv_cmd(sk);
if (!cmd) {
ret = -1;
void fio_server_idle_loop(void)
{
+ if (!first_cmd_check)
+ fio_net_send_simple_cmd(server_fd, FIO_NET_CMD_RUN, 0, NULL);
if (server_fd != -1)
- handle_connection(server_fd);
+ handle_connection(server_fd, 0);
}
static int accept_loop(int listen_sk)
{
- struct sockaddr addr;
- unsigned int len = sizeof(addr);
+ struct sockaddr_in addr;
+ fio_socklen_t len = sizeof(addr);
struct pollfd pfd;
int ret, sk, flags, exitval = 0;
+ dprint(FD_NET, "server enter accept loop\n");
+
flags = fcntl(listen_sk, F_GETFL);
flags |= O_NONBLOCK;
fcntl(listen_sk, F_SETFL, flags);
if (exit_backend)
goto out;
- sk = accept(listen_sk, &addr, &len);
+ sk = accept(listen_sk, (struct sockaddr *) &addr, &len);
if (sk < 0) {
log_err("fio: accept: %s\n", strerror(errno));
return -1;
}
- dprint(FD_NET, "server got a connection\n");
+ dprint(FD_NET, "server: connect from %s\n", inet_ntoa(addr.sin_addr));
server_fd = sk;
- exitval = handle_connection(sk);
+ exitval = handle_connection(sk, 1);
server_fd = -1;
close(sk);
return exitval;
}
-static int fio_server(void)
-{
- struct sockaddr_in saddr_in;
- struct sockaddr addr;
- unsigned int len;
- int sk, opt, ret;
-
- dprint(FD_NET, "starting server\n");
-
- sk = socket(AF_INET, SOCK_STREAM, 0);
- if (sk < 0) {
- log_err("fio: socket: %s\n", strerror(errno));
- return -1;
- }
-
- opt = 1;
- if (setsockopt(sk, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt)) < 0) {
- log_err("fio: setsockopt: %s\n", strerror(errno));
- return -1;
- }
-#ifdef SO_REUSEPORT
- if (setsockopt(fd, SOL_SOCKET, SO_REUSEPORT, &opt, sizeof(opt)) < 0) {
- log_err("fio: setsockopt: %s\n", strerror(errno));
- return -1;
- }
-#endif
-
- saddr_in.sin_family = AF_INET;
- saddr_in.sin_addr.s_addr = htonl(INADDR_ANY);
- saddr_in.sin_port = htons(fio_net_port);
-
- if (bind(sk, (struct sockaddr *) &saddr_in, sizeof(saddr_in)) < 0) {
- log_err("fio: bind: %s\n", strerror(errno));
- return -1;
- }
-
- if (listen(sk, 1) < 0) {
- log_err("fio: listen: %s\n", strerror(errno));
- return -1;
- }
-
- len = sizeof(addr);
- if (getsockname(sk, &addr, &len) < 0) {
- log_err("fio: getsockname: %s\n", strerror(errno));
- return -1;
- }
-
- ret = accept_loop(sk);
- close(sk);
- return ret;
-}
-
-int fio_server_text_output(const char *buf, unsigned int len)
+int fio_server_text_output(const char *buf, size_t len)
{
if (server_fd != -1)
- return fio_net_send_cmd(server_fd, FIO_NET_CMD_TEXT, buf, len);
+ return fio_net_send_cmd(server_fd, FIO_NET_CMD_TEXT, buf, len, 0);
- return 0;
+ return log_local_buf(buf, len);
}
static void convert_io_stat(struct io_stat *dst, struct io_stat *src)
dst->max_val = cpu_to_le64(src->max_val);
dst->min_val = cpu_to_le64(src->min_val);
dst->samples = cpu_to_le64(src->samples);
- /* FIXME */
- dst->mean = __cpu_to_le64(src->mean);
- dst->S = __cpu_to_le64(src->S);
+
+ /*
+ * Encode to IEEE 754 for network transfer
+ */
+ dst->mean.u.i = __cpu_to_le64(fio_double_to_uint64(src->mean.u.f));
+ dst->S.u.i = __cpu_to_le64(fio_double_to_uint64(src->S.u.f));
}
static void convert_gs(struct group_run_stats *dst, struct group_run_stats *src)
struct cmd_ts_pdu p;
int i, j;
+ dprint(FD_NET, "server sending end stats\n");
+
memset(&p, 0, sizeof(p));
strcpy(p.ts.name, ts->name);
p.ts.minf = cpu_to_le64(ts->minf);
p.ts.majf = cpu_to_le64(ts->majf);
p.ts.clat_percentiles = cpu_to_le64(ts->clat_percentiles);
- p.ts.percentile_list = NULL;
+
+ for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) {
+ fio_fp64_t *src = &ts->percentile_list[i];
+ fio_fp64_t *dst = &p.ts.percentile_list[i];
+
+ dst->u.i = __cpu_to_le64(fio_double_to_uint64(src->u.f));
+ }
for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
p.ts.io_u_map[i] = cpu_to_le32(ts->io_u_map[i]);
convert_gs(&p.rs, rs);
- fio_net_send_cmd(server_fd, FIO_NET_CMD_TS, &p, sizeof(p));
+ fio_net_send_cmd(server_fd, FIO_NET_CMD_TS, &p, sizeof(p), 0);
}
void fio_server_send_gs(struct group_run_stats *rs)
{
struct group_run_stats gs;
+ dprint(FD_NET, "server sending group run stats\n");
+
convert_gs(&gs, rs);
- fio_net_send_cmd(server_fd, FIO_NET_CMD_GS, &gs, sizeof(gs));
+ fio_net_send_cmd(server_fd, FIO_NET_CMD_GS, &gs, sizeof(gs), 0);
}
-void fio_server_send_status(void)
+static void convert_agg(struct disk_util_agg *dst, struct disk_util_agg *src)
{
- struct jobs_eta *je;
- size_t size;
- void *buf;
int i;
- size = sizeof(*je) + thread_number * sizeof(char);
- buf = malloc(size);
- memset(buf, 0, size);
- je = buf;
-
- if (!calc_thread_status(je)) {
- free(je);
- return;
+ for (i = 0; i < 2; i++) {
+ dst->ios[i] = cpu_to_le32(src->ios[i]);
+ dst->merges[i] = cpu_to_le32(src->merges[i]);
+ dst->sectors[i] = cpu_to_le64(src->sectors[i]);
+ dst->ticks[i] = cpu_to_le32(src->ticks[i]);
}
- je->nr_running = cpu_to_le32(je->nr_running);
- je->nr_ramp = cpu_to_le32(je->nr_ramp);
- je->nr_pending = cpu_to_le32(je->nr_pending);
- je->files_open = cpu_to_le32(je->files_open);
- je->m_rate = cpu_to_le32(je->m_rate);
- je->t_rate = cpu_to_le32(je->t_rate);
- je->m_iops = cpu_to_le32(je->m_iops);
- je->t_iops = cpu_to_le32(je->t_iops);
+ dst->io_ticks = cpu_to_le32(src->io_ticks);
+ dst->time_in_queue = cpu_to_le32(src->time_in_queue);
+ dst->slavecount = cpu_to_le32(src->slavecount);
+ dst->max_util.u.i = __cpu_to_le64(fio_double_to_uint64(src->max_util.u.f));
+}
+
+static void convert_dus(struct disk_util_stat *dst, struct disk_util_stat *src)
+{
+ int i;
+
+ strcpy((char *) dst->name, (char *) src->name);
for (i = 0; i < 2; i++) {
- je->rate[i] = cpu_to_le32(je->rate[i]);
- je->iops[i] = cpu_to_le32(je->iops[i]);
+ dst->ios[i] = cpu_to_le32(src->ios[i]);
+ dst->merges[i] = cpu_to_le32(src->merges[i]);
+ dst->sectors[i] = cpu_to_le64(src->sectors[i]);
+ dst->ticks[i] = cpu_to_le32(src->ticks[i]);
}
- je->elapsed_sec = cpu_to_le32(je->nr_running);
- je->eta_sec = cpu_to_le64(je->eta_sec);
+ dst->io_ticks = cpu_to_le32(src->io_ticks);
+ dst->time_in_queue = cpu_to_le32(src->time_in_queue);
+ dst->msec = cpu_to_le64(src->msec);
+}
- fio_net_send_cmd(server_fd, FIO_NET_CMD_ETA, buf, size);
- free(je);
+void fio_server_send_du(void)
+{
+ struct disk_util *du;
+ struct flist_head *entry;
+ struct cmd_du_pdu pdu;
+
+ dprint(FD_NET, "server: sending disk_util %d\n", !flist_empty(&disk_list));
+
+ memset(&pdu, 0, sizeof(pdu));
+
+ flist_for_each(entry, &disk_list) {
+ du = flist_entry(entry, struct disk_util, list);
+
+ convert_dus(&pdu.dus, &du->dus);
+ convert_agg(&pdu.agg, &du->agg);
+
+ fio_net_send_cmd(server_fd, FIO_NET_CMD_DU, &pdu, sizeof(pdu), 0);
+ }
}
int fio_server_log(const char *format, ...)
va_list args;
size_t len;
+ dprint(FD_NET, "server log\n");
+
va_start(args, format);
len = vsnprintf(buffer, sizeof(buffer), format, args);
va_end(args);
return fio_server_text_output(buffer, len);
}
-int fio_start_server(int daemonize)
+static int fio_init_server_ip(void)
+{
+ int sk, opt;
+
+ sk = socket(AF_INET, SOCK_STREAM, 0);
+ if (sk < 0) {
+ log_err("fio: socket: %s\n", strerror(errno));
+ return -1;
+ }
+
+ opt = 1;
+ if (setsockopt(sk, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt)) < 0) {
+ log_err("fio: setsockopt: %s\n", strerror(errno));
+ close(sk);
+ return -1;
+ }
+#ifdef SO_REUSEPORT
+ if (setsockopt(sk, SOL_SOCKET, SO_REUSEPORT, &opt, sizeof(opt)) < 0) {
+ log_err("fio: setsockopt: %s\n", strerror(errno));
+ close(sk);
+ return -1;
+ }
+#endif
+
+ saddr_in.sin_family = AF_INET;
+
+ if (bind(sk, (struct sockaddr *) &saddr_in, sizeof(saddr_in)) < 0) {
+ log_err("fio: bind: %s\n", strerror(errno));
+ close(sk);
+ return -1;
+ }
+
+ return sk;
+}
+
+static int fio_init_server_sock(void)
+{
+ struct sockaddr_un addr;
+ fio_socklen_t len;
+ mode_t mode;
+ int sk;
+
+ sk = socket(AF_UNIX, SOCK_STREAM, 0);
+ if (sk < 0) {
+ log_err("fio: socket: %s\n", strerror(errno));
+ return -1;
+ }
+
+ mode = umask(000);
+
+ memset(&addr, 0, sizeof(addr));
+ addr.sun_family = AF_UNIX;
+ strcpy(addr.sun_path, bind_sock);
+ unlink(bind_sock);
+
+ len = sizeof(addr.sun_family) + strlen(bind_sock) + 1;
+
+ if (bind(sk, (struct sockaddr *) &addr, len) < 0) {
+ log_err("fio: bind: %s\n", strerror(errno));
+ close(sk);
+ return -1;
+ }
+
+ umask(mode);
+ return sk;
+}
+
+static int fio_init_server_connection(void)
+{
+ char bind_str[128];
+ int sk;
+
+ dprint(FD_NET, "starting server\n");
+
+ if (!bind_sock)
+ sk = fio_init_server_ip();
+ else
+ sk = fio_init_server_sock();
+
+ if (sk < 0)
+ return sk;
+
+ if (!bind_sock)
+ sprintf(bind_str, "%s:%u", inet_ntoa(saddr_in.sin_addr), fio_net_port);
+ else
+ strcpy(bind_str, bind_sock);
+
+ log_info("fio: server listening on %s\n", bind_str);
+
+ if (listen(sk, 0) < 0) {
+ log_err("fio: listen: %s\n", strerror(errno));
+ return -1;
+ }
+
+ return sk;
+}
+
+int fio_server_parse_string(const char *str, char **ptr, int *is_sock,
+ int *port, struct in_addr *inp)
+{
+ *ptr = NULL;
+ *is_sock = 0;
+ *port = fio_net_port;
+
+ if (!strncmp(str, "sock:", 5)) {
+ *ptr = strdup(str + 5);
+ *is_sock = 1;
+ } else {
+ const char *host = str;
+ char *portp;
+ int lport = 0;
+
+ /*
+ * Is it ip:<ip or host>:port
+ */
+ if (!strncmp(host, "ip:", 3))
+ host += 3;
+ else if (host[0] == ':') {
+ /* String is :port */
+ host++;
+ lport = atoi(host);
+ if (!lport || lport > 65535) {
+ log_err("fio: bad server port %u\n", port);
+ return 1;
+ }
+ /* no hostname given, we are done */
+ *port = lport;
+ return 0;
+ }
+
+ /*
+ * If no port seen yet, check if there's a last ':' at the end
+ */
+ if (!lport) {
+ portp = strchr(host, ':');
+ if (portp) {
+ *portp = '\0';
+ portp++;
+ lport = atoi(portp);
+ if (!lport || lport > 65535) {
+ log_err("fio: bad server port %u\n", port);
+ return 1;
+ }
+ }
+ }
+
+ if (lport)
+ *port = lport;
+
+ *ptr = strdup(host);
+
+ if (inet_aton(host, inp) != 1) {
+ struct hostent *hent;
+
+ hent = gethostbyname(host);
+ if (!hent) {
+ free(*ptr);
+ *ptr = NULL;
+ return 1;
+ }
+
+ memcpy(inp, hent->h_addr, 4);
+ }
+ }
+
+ if (*port == 0)
+ *port = fio_net_port;
+
+ return 0;
+}
+
+/*
+ * Server arg should be one of:
+ *
+ * sock:/path/to/socket
+ * ip:1.2.3.4
+ * 1.2.3.4
+ *
+ * Where sock uses unix domain sockets, and ip binds the server to
+ * a specific interface. If no arguments are given to the server, it
+ * uses IP and binds to 0.0.0.0.
+ *
+ */
+static int fio_handle_server_arg(void)
+{
+ int port = fio_net_port;
+ int is_sock, ret = 0;
+
+ saddr_in.sin_addr.s_addr = htonl(INADDR_ANY);
+
+ if (!fio_server_arg)
+ goto out;
+
+ ret = fio_server_parse_string(fio_server_arg, &bind_sock, &is_sock,
+ &port, &saddr_in.sin_addr);
+
+ if (!is_sock && bind_sock) {
+ free(bind_sock);
+ bind_sock = NULL;
+ }
+
+out:
+ fio_net_port = port;
+ saddr_in.sin_port = htons(port);
+ return ret;
+}
+
+static int fio_server(void)
{
+ int sk, ret;
+
+ dprint(FD_NET, "starting server\n");
+
+ if (fio_handle_server_arg())
+ return -1;
+
+ sk = fio_init_server_connection();
+ if (sk < 0)
+ return -1;
+
+ ret = accept_loop(sk);
+
+ close(sk);
+
+ if (fio_server_arg) {
+ free(fio_server_arg);
+ fio_server_arg = NULL;
+ }
+ if (bind_sock)
+ free(bind_sock);
+
+ return ret;
+}
+
+void fio_server_got_signal(int signal)
+{
+ if (signal == SIGPIPE)
+ server_fd = -1;
+ else {
+ log_info("\nfio: terminating on signal %d\n", signal);
+ exit_backend = 1;
+ }
+}
+
+static int check_existing_pidfile(const char *pidfile)
+{
+ struct stat sb;
+ char buf[16];
pid_t pid;
+ FILE *f;
+
+ if (stat(pidfile, &sb))
+ return 0;
+
+ f = fopen(pidfile, "r");
+ if (!f)
+ return 0;
+
+ if (fread(buf, sb.st_size, 1, f) <= 0) {
+ fclose(f);
+ return 1;
+ }
+ fclose(f);
+
+ pid = atoi(buf);
+ if (kill(pid, SIGCONT) < 0)
+ return errno != ESRCH;
+
+ return 1;
+}
- if (!daemonize)
+static int write_pid(pid_t pid, const char *pidfile)
+{
+ FILE *fpid;
+
+ fpid = fopen(pidfile, "w");
+ if (!fpid) {
+ log_err("fio: failed opening pid file %s\n", pidfile);
+ return 1;
+ }
+
+ fprintf(fpid, "%u\n", (unsigned int) pid);
+ fclose(fpid);
+ return 0;
+}
+
+/*
+ * If pidfile is specified, background us.
+ */
+int fio_start_server(char *pidfile)
+{
+ pid_t pid;
+ int ret;
+
+ if (!pidfile)
return fio_server();
- openlog("fio", LOG_NDELAY|LOG_NOWAIT|LOG_PID, LOG_USER);
+ if (check_existing_pidfile(pidfile)) {
+ log_err("fio: pidfile %s exists and server appears alive\n",
+ pidfile);
+ return -1;
+ }
+
pid = fork();
if (pid < 0) {
- syslog(LOG_ERR, "failed server fork");
+ log_err("fio: failed server fork: %s", strerror(errno));
+ free(pidfile);
return -1;
- } else if (pid)
- exit(0);
+ } else if (pid) {
+ int ret = write_pid(pid, pidfile);
+
+ exit(ret);
+ }
setsid();
+ openlog("fio", LOG_NDELAY|LOG_NOWAIT|LOG_PID, LOG_USER);
+ log_syslog = 1;
close(STDIN_FILENO);
close(STDOUT_FILENO);
close(STDERR_FILENO);
f_out = NULL;
f_err = NULL;
- log_syslog = 1;
- return fio_server();
+
+ ret = fio_server();
+
+ closelog();
+ unlink(pidfile);
+ free(pidfile);
+ return ret;
+}
+
+void fio_server_set_arg(const char *arg)
+{
+ fio_server_arg = strdup(arg);
}
projects / fio.git / blobdiff