#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/crc32.h"
+#include "crc/crc16.h"
+#include "ieee754.h"
+
+#include "fio_version.h"
int fio_net_port = 8765;
int exit_backend = 0;
-static char *job_buf;
-static unsigned int job_cur_len;
-static unsigned int job_max_len;
-
-static int server_fd;
+static int server_fd = -1;
+static char *fio_server_arg;
+static char *bind_sock;
+static struct sockaddr_in saddr_in;
int fio_send_data(int sk, const void *p, unsigned int len)
{
+ assert(len <= sizeof(struct fio_net_cmd) + FIO_SERVER_MAX_PDU);
+
do {
int ret = send(sk, p, len, 0);
static int verify_convert_cmd(struct fio_net_cmd *cmd)
{
- uint32_t crc;
+ uint16_t crc;
- cmd->cmd_crc32 = le32_to_cpu(cmd->cmd_crc32);
- cmd->pdu_crc32 = le32_to_cpu(cmd->pdu_crc32);
+ cmd->cmd_crc16 = le16_to_cpu(cmd->cmd_crc16);
+ cmd->pdu_crc16 = le16_to_cpu(cmd->pdu_crc16);
- crc = crc32(cmd, sizeof(*cmd) - 2 * sizeof(uint32_t));
- if (crc != cmd->cmd_crc32) {
+ crc = crc16(cmd, FIO_NET_CMD_CRC_SZ);
+ if (crc != cmd->cmd_crc16) {
log_err("fio: server bad crc on command (got %x, wanted %x)\n",
- cmd->cmd_crc32, crc);
+ cmd->cmd_crc16, crc);
return 1;
}
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);
return 0;
}
-struct fio_net_cmd *fio_net_cmd_read(int sk)
+/*
+ * Read (and defragment, if necessary) incoming commands
+ */
+struct fio_net_cmd *fio_net_recv_cmd(int sk)
{
- struct fio_net_cmd cmd, *ret = NULL;
- uint32_t crc;
+ struct fio_net_cmd cmd, *cmdret = NULL;
+ size_t cmd_size = 0, pdu_offset = 0;
+ uint16_t crc;
+ int ret, first = 1;
+ void *pdu = NULL;
+
+ do {
+ ret = fio_recv_data(sk, &cmd, sizeof(cmd));
+ if (ret)
+ break;
- if (fio_recv_data(sk, &cmd, sizeof(cmd)))
- return NULL;
+ /* We have a command, verify it and swap if need be */
+ ret = verify_convert_cmd(&cmd);
+ if (ret)
+ break;
- /* We have a command, verify it and swap if need be */
- if (verify_convert_cmd(&cmd))
- return NULL;
+ 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;
- /* Command checks out, alloc real command and fill in */
- ret = malloc(sizeof(cmd) + cmd.pdu_len);
- memcpy(ret, &cmd, sizeof(cmd));
+ cmdret = realloc(cmdret, cmd_size);
- if (!ret->pdu_len)
- return ret;
+ if (first)
+ memcpy(cmdret, &cmd, sizeof(cmd));
+ else
+ assert(cmdret->opcode == cmd.opcode);
- /* There's payload, get it */
- if (fio_recv_data(sk, (void *) ret + sizeof(*ret), ret->pdu_len)) {
- free(ret);
- return NULL;
- }
+ if (!cmd.pdu_len)
+ break;
- /* Verify payload crc */
- crc = crc32(ret->payload, ret->pdu_len);
- if (crc != ret->pdu_crc32) {
- log_err("fio: server bad crc on payload (got %x, wanted %x)\n",
- ret->pdu_crc32, crc);
- free(ret);
- return NULL;
+ /* There's payload, get it */
+ pdu = (void *) cmdret->payload + pdu_offset;
+ ret = fio_recv_data(sk, pdu, cmd.pdu_len);
+ if (ret)
+ break;
+
+ /* Verify payload crc */
+ crc = crc16(pdu, cmd.pdu_len);
+ if (crc != cmd.pdu_crc16) {
+ log_err("fio: server bad crc on payload ");
+ log_err("(got %x, wanted %x)\n", cmd.pdu_crc16, crc);
+ ret = 1;
+ break;
+ }
+
+ pdu_offset += cmd.pdu_len;
+ if (!first)
+ cmdret->pdu_len += cmd.pdu_len;
+ first = 0;
+ } while (cmd.flags & FIO_NET_CMD_F_MORE);
+
+ if (ret) {
+ free(cmdret);
+ cmdret = NULL;
+ } 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 ret;
+ return cmdret;
}
void fio_net_cmd_crc(struct fio_net_cmd *cmd)
{
uint32_t pdu_len;
- cmd->cmd_crc32 = cpu_to_le32(crc32(cmd,
- sizeof(*cmd) - 2 * sizeof(uint32_t)));
+ cmd->cmd_crc16 = __cpu_to_le16(crc16(cmd, FIO_NET_CMD_CRC_SZ));
pdu_len = le32_to_cpu(cmd->pdu_len);
if (pdu_len)
- cmd->pdu_crc32 = cpu_to_le32(crc32(cmd->payload, pdu_len));
+ 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,
+ uint64_t tag)
+{
+ struct fio_net_cmd *cmd = NULL;
+ size_t this_len, cur_len = 0;
+ int ret;
+
+ do {
+ this_len = size;
+ if (this_len > FIO_SERVER_MAX_PDU)
+ this_len = FIO_SERVER_MAX_PDU;
+
+ 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, 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);
+ size -= this_len;
+ buf += this_len;
+ } while (!ret && size);
+
+ if (cmd)
+ free(cmd);
+
+ return ret;
}
-static int send_simple_command(int sk, uint16_t opcode, uint64_t serial)
+int fio_net_send_simple_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_le16(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));
}
-/*
- * Send an ack for this command
- */
-static int ack_command(int sk, struct fio_net_cmd *cmd)
+static int fio_server_send_quit_cmd(void)
{
- return send_simple_command(sk, FIO_NET_CMD_ACK, cmd->serial);
+ dprint(FD_NET, "server: sending quit\n");
+ return fio_net_send_simple_cmd(server_fd, FIO_NET_CMD_QUIT, 0);
}
-#if 0
-static int nak_command(int sk, struct fio_net_cmd *cmd)
+static int handle_job_cmd(struct fio_net_cmd *cmd)
{
- return send_simple_command(sk, FIO_NET_CMD_NAK, cmd->serial);
+ char *buf = (char *) cmd->payload;
+ int ret;
+
+ if (parse_jobs_ini(buf, 1, 0)) {
+ fio_server_send_quit_cmd();
+ return -1;
+ }
+
+ fio_net_send_simple_cmd(server_fd, FIO_NET_CMD_START, 0);
+
+ ret = exec_run();
+ 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);
+
+ ret = exec_run();
+ fio_server_send_quit_cmd();
+ reset_fio_state();
+ return ret;
+}
+
+static int handle_probe_cmd(struct fio_net_cmd *cmd)
+{
+ struct cmd_probe_pdu probe;
+
+ memset(&probe, 0, sizeof(probe));
+ gethostname((char *) probe.hostname, sizeof(probe.hostname));
+#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;
+
+ return fio_net_send_cmd(server_fd, FIO_NET_CMD_PROBE, &probe, sizeof(probe), 0);
+}
-static int handle_cur_job(struct fio_net_cmd *cmd, int done)
+static int handle_send_eta_cmd(struct fio_net_cmd *cmd)
{
- unsigned int left = job_max_len - job_cur_len;
- int ret = 0;
+ struct jobs_eta *je;
+ size_t size;
+ int i;
- if (left < cmd->pdu_len) {
- job_buf = realloc(job_buf, job_max_len + 2 * cmd->pdu_len);
- job_max_len += 2 * cmd->pdu_len;
+ size = sizeof(*je) + thread_number * sizeof(char);
+ je = malloc(size);
+ memset(je, 0, size);
+
+ if (!calc_thread_status(je, 1)) {
+ free(je);
+ return 0;
}
- memcpy(job_buf + job_cur_len, cmd->payload, cmd->pdu_len);
- job_cur_len += cmd->pdu_len;
+ dprint(FD_NET, "server sending status\n");
- if (done) {
- parse_jobs_ini(job_buf, 1, 0);
- ret = exec_run();
- reset_fio_state();
- free(job_buf);
- job_buf = NULL;
- job_cur_len = job_max_len = 0;
+ 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]);
}
- return ret;
+ 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, pdu=%u\n", cmd->opcode, cmd->pdu_len);
+
switch (cmd->opcode) {
case FIO_NET_CMD_QUIT:
+ fio_terminate_threads(TERMINATE_ALL);
+ return -1;
+ case FIO_NET_CMD_EXIT:
exit_backend = 1;
- return 1;
- case FIO_NET_CMD_ACK:
- return 0;
- case FIO_NET_CMD_NAK:
- return 1;
+ return -1;
case FIO_NET_CMD_JOB:
- ret = handle_cur_job(cmd, 0);
+ 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_JOB_END:
- ret = handle_cur_job(cmd, 1);
+ case FIO_NET_CMD_SEND_ETA:
+ ret = handle_send_eta_cmd(cmd);
break;
default:
log_err("fio: unknown opcode: %d\n", cmd->opcode);
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) {
- cmd = fio_net_cmd_read(sk);
- if (!cmd) {
- ret = 1;
+ 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;
- }
- ret = ack_command(sk, cmd);
- if (ret)
+ cmd = fio_net_recv_cmd(sk);
+ if (!cmd) {
+ ret = -1;
break;
+ }
ret = handle_command(cmd);
if (ret)
break;
free(cmd);
+ cmd = NULL;
}
if (cmd)
return ret;
}
+void fio_server_idle_loop(void)
+{
+ if (server_fd != -1)
+ 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 (ret < 0) {
if (errno == EINTR)
break;
- perror("poll");
+ log_err("fio: poll: %s\n", strerror(errno));
goto out;
} else if (!ret)
continue;
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: 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;
}
-int fio_server(void)
+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, 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);
+
+ /*
+ * 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)
+{
+ int i;
+
+ for (i = 0; i < 2; i++) {
+ dst->max_run[i] = cpu_to_le64(src->max_run[i]);
+ dst->min_run[i] = cpu_to_le64(src->min_run[i]);
+ dst->max_bw[i] = cpu_to_le64(src->max_bw[i]);
+ dst->min_bw[i] = cpu_to_le64(src->min_bw[i]);
+ dst->io_kb[i] = cpu_to_le64(src->io_kb[i]);
+ dst->agg[i] = cpu_to_le64(src->agg[i]);
+ }
+
+ dst->kb_base = cpu_to_le32(src->kb_base);
+ dst->groupid = cpu_to_le32(src->groupid);
+}
+
+/*
+ * Send a CMD_TS, which packs struct thread_stat and group_run_stats
+ * into a single payload.
+ */
+void fio_server_send_ts(struct thread_stat *ts, struct group_run_stats *rs)
+{
+ 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);
+ strcpy(p.ts.verror, ts->verror);
+ strcpy(p.ts.description, ts->description);
+
+ p.ts.error = cpu_to_le32(ts->error);
+ p.ts.groupid = cpu_to_le32(ts->groupid);
+ p.ts.pid = cpu_to_le32(ts->pid);
+ p.ts.members = cpu_to_le32(ts->members);
+
+ for (i = 0; i < 2; i++) {
+ convert_io_stat(&p.ts.clat_stat[i], &ts->clat_stat[i]);
+ convert_io_stat(&p.ts.slat_stat[i], &ts->slat_stat[i]);
+ convert_io_stat(&p.ts.lat_stat[i], &ts->lat_stat[i]);
+ convert_io_stat(&p.ts.bw_stat[i], &ts->bw_stat[i]);
+ }
+
+ p.ts.usr_time = cpu_to_le64(ts->usr_time);
+ p.ts.sys_time = cpu_to_le64(ts->sys_time);
+ p.ts.ctx = cpu_to_le64(ts->ctx);
+ 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);
+
+ for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) {
+ fio_fp64_t *fp = &p.ts.percentile_list[i];
+
+ fp->u.i = __cpu_to_le64(fio_double_to_uint64(fp->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]);
+ p.ts.io_u_submit[i] = cpu_to_le32(ts->io_u_submit[i]);
+ p.ts.io_u_complete[i] = cpu_to_le32(ts->io_u_complete[i]);
+ }
+
+ for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) {
+ p.ts.io_u_lat_u[i] = cpu_to_le32(ts->io_u_lat_u[i]);
+ p.ts.io_u_lat_m[i] = cpu_to_le32(ts->io_u_lat_m[i]);
+ }
+
+ for (i = 0; i < 2; i++)
+ for (j = 0; j < FIO_IO_U_PLAT_NR; j++)
+ p.ts.io_u_plat[i][j] = cpu_to_le32(ts->io_u_plat[i][j]);
+
+ for (i = 0; i < 3; i++) {
+ p.ts.total_io_u[i] = cpu_to_le64(ts->total_io_u[i]);
+ p.ts.short_io_u[i] = cpu_to_le64(ts->short_io_u[i]);
+ }
+
+ p.ts.total_submit = cpu_to_le64(ts->total_submit);
+ p.ts.total_complete = cpu_to_le64(ts->total_complete);
+
+ for (i = 0; i < 2; i++) {
+ p.ts.io_bytes[i] = cpu_to_le64(ts->io_bytes[i]);
+ p.ts.runtime[i] = cpu_to_le64(ts->runtime[i]);
+ }
+
+ p.ts.total_run_time = cpu_to_le64(ts->total_run_time);
+ p.ts.continue_on_error = cpu_to_le16(ts->continue_on_error);
+ p.ts.total_err_count = cpu_to_le64(ts->total_err_count);
+ p.ts.first_error = cpu_to_le32(ts->first_error);
+ p.ts.kb_base = cpu_to_le32(ts->kb_base);
+
+ convert_gs(&p.rs, rs);
+
+ 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), 0);
+}
+
+int fio_server_log(const char *format, ...)
+{
+ char buffer[1024];
+ 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);
+}
+
+static int fio_init_server_ip(void)
{
- struct sockaddr_in saddr_in;
- struct sockaddr addr;
- unsigned int len;
- int sk, opt, ret;
+ int sk, opt;
sk = socket(AF_INET, SOCK_STREAM, 0);
if (sk < 0) {
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(fd, SOL_SOCKET, SO_REUSEPORT, &opt, sizeof(opt)) < 0) {
+ if (setsockopt(sk, SOL_SOCKET, SO_REUSEPORT, &opt, sizeof(opt)) < 0) {
log_err("fio: setsockopt: %s\n", strerror(errno));
- return 1;
+ close(sk);
+ 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));
+ 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, 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;
+ 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;
}
-int fio_server_text_output(const char *buf, unsigned int len)
+static void sig_int(int sig)
{
- struct fio_net_cmd *cmd;
- int size = sizeof(*cmd) + len;
+ fio_terminate_threads(TERMINATE_ALL);
+ exit_backend = 1;
+}
- cmd = malloc(size);
- fio_init_net_cmd(cmd, FIO_NET_CMD_TEXT, buf, len);
- fio_net_cmd_crc(cmd);
+static void server_signal_handler(void)
+{
+ struct sigaction act;
- fio_send_data(server_fd, cmd, size);
- free(cmd);
- return size;
+ memset(&act, 0, sizeof(act));
+ act.sa_handler = sig_int;
+ act.sa_flags = SA_RESTART;
+ sigaction(SIGINT, &act, NULL);
+
+ memset(&act, 0, sizeof(act));
+ act.sa_handler = sig_int;
+ act.sa_flags = SA_RESTART;
+ sigaction(SIGTERM, &act, NULL);
}
-int fio_server_log(const char *format, ...)
+static int check_existing_pidfile(const char *pidfile)
{
- char buffer[1024];
- va_list args;
- size_t len;
+ struct stat sb;
+ char buf[16];
+ pid_t pid;
+ FILE *f;
- va_start(args, format);
- len = vsnprintf(buffer, sizeof(buffer), format, args);
- va_end(args);
+ if (stat(pidfile, &sb))
+ return 0;
- return fio_server_text_output(buffer, len);
+ 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 0;
+
+ return 1;
+}
+
+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;
+
+ server_signal_handler();
+
+ if (!pidfile)
+ return fio_server();
+
+ if (check_existing_pidfile(pidfile)) {
+ log_err("fio: pidfile %s exists and server appears alive\n",
+ pidfile);
+ return -1;
+ }
+
+ pid = fork();
+ if (pid < 0) {
+ log_err("fio: failed server fork: %s", strerror(errno));
+ free(pidfile);
+ return -1;
+ } 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;
+
+ 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