blob: c3502cd1570907a24ef8e80062631015de91ee4e [file] [log] [blame]
Jens Axboe50d16972011-09-29 17:45:28 -06001#include <stdio.h>
2#include <stdlib.h>
Jens Axboe142575e2011-09-30 17:35:45 -06003#include <stdarg.h>
Jens Axboe50d16972011-09-29 17:45:28 -06004#include <unistd.h>
5#include <limits.h>
Jens Axboe50d16972011-09-29 17:45:28 -06006#include <errno.h>
7#include <fcntl.h>
8#include <sys/poll.h>
Jens Axboe50d16972011-09-29 17:45:28 -06009#include <sys/types.h>
10#include <sys/wait.h>
Jens Axboed05c4a02011-10-05 00:16:11 +020011#include <sys/socket.h>
Jens Axboe87aa8f12011-10-06 21:24:13 +020012#include <sys/stat.h>
13#include <sys/un.h>
Jens Axboe50d16972011-09-29 17:45:28 -060014#include <netinet/in.h>
15#include <arpa/inet.h>
16#include <netdb.h>
Jens Axboee46d8092011-10-03 09:11:02 +020017#include <syslog.h>
Jens Axboe9e22ecb2011-10-04 14:50:21 +020018#include <signal.h>
Jens Axboe50d16972011-09-29 17:45:28 -060019
20#include "fio.h"
Jens Axboe132159a2011-09-30 15:01:32 -060021#include "server.h"
Jens Axboefcee5ff2011-09-30 22:50:39 -060022#include "crc/crc16.h"
Jens Axboe802ad4a2011-10-05 09:51:58 +020023#include "ieee754.h"
Jens Axboe50d16972011-09-29 17:45:28 -060024
Jens Axboe89cf1482011-10-07 10:10:18 +020025#include "fio_version.h"
26
Jens Axboe132159a2011-09-30 15:01:32 -060027int fio_net_port = 8765;
Jens Axboe50d16972011-09-29 17:45:28 -060028
Jens Axboe009b1be2011-09-29 18:27:02 -060029int exit_backend = 0;
30
Jens Axboe46c48f12011-10-01 12:50:51 -060031static int server_fd = -1;
Jens Axboe87aa8f12011-10-06 21:24:13 +020032static char *fio_server_arg;
33static char *bind_sock;
34static struct sockaddr_in saddr_in;
Jens Axboe37db14f2011-09-30 17:00:42 -060035
Jens Axboe132159a2011-09-30 15:01:32 -060036int fio_send_data(int sk, const void *p, unsigned int len)
37{
Jens Axboe794d69c2011-10-01 08:48:50 -060038 assert(len <= sizeof(struct fio_net_cmd) + FIO_SERVER_MAX_PDU);
39
Jens Axboe132159a2011-09-30 15:01:32 -060040 do {
41 int ret = send(sk, p, len, 0);
42
43 if (ret > 0) {
44 len -= ret;
45 if (!len)
46 break;
47 p += ret;
48 continue;
49 } else if (!ret)
50 break;
51 else if (errno == EAGAIN || errno == EINTR)
52 continue;
53 } while (!exit_backend);
54
55 if (!len)
56 return 0;
57
58 return 1;
59}
60
61int fio_recv_data(int sk, void *p, unsigned int len)
62{
63 do {
64 int ret = recv(sk, p, len, MSG_WAITALL);
65
66 if (ret > 0) {
67 len -= ret;
68 if (!len)
69 break;
70 p += ret;
71 continue;
72 } else if (!ret)
73 break;
74 else if (errno == EAGAIN || errno == EINTR)
75 continue;
76 } while (!exit_backend);
77
78 if (!len)
79 return 0;
80
81 return -1;
82}
83
84static int verify_convert_cmd(struct fio_net_cmd *cmd)
85{
Jens Axboefcee5ff2011-09-30 22:50:39 -060086 uint16_t crc;
Jens Axboe132159a2011-09-30 15:01:32 -060087
Jens Axboefcee5ff2011-09-30 22:50:39 -060088 cmd->cmd_crc16 = le16_to_cpu(cmd->cmd_crc16);
89 cmd->pdu_crc16 = le16_to_cpu(cmd->pdu_crc16);
Jens Axboe132159a2011-09-30 15:01:32 -060090
Jens Axboefcee5ff2011-09-30 22:50:39 -060091 crc = crc16(cmd, FIO_NET_CMD_CRC_SZ);
92 if (crc != cmd->cmd_crc16) {
Jens Axboe132159a2011-09-30 15:01:32 -060093 log_err("fio: server bad crc on command (got %x, wanted %x)\n",
Jens Axboefcee5ff2011-09-30 22:50:39 -060094 cmd->cmd_crc16, crc);
Jens Axboe132159a2011-09-30 15:01:32 -060095 return 1;
96 }
97
98 cmd->version = le16_to_cpu(cmd->version);
99 cmd->opcode = le16_to_cpu(cmd->opcode);
100 cmd->flags = le32_to_cpu(cmd->flags);
101 cmd->serial = le64_to_cpu(cmd->serial);
102 cmd->pdu_len = le32_to_cpu(cmd->pdu_len);
103
104 switch (cmd->version) {
Jens Axboe178cde92011-10-05 22:14:31 +0200105 case FIO_SERVER_VER2:
Jens Axboe132159a2011-09-30 15:01:32 -0600106 break;
107 default:
108 log_err("fio: bad server cmd version %d\n", cmd->version);
109 return 1;
110 }
111
112 if (cmd->pdu_len > FIO_SERVER_MAX_PDU) {
113 log_err("fio: command payload too large: %u\n", cmd->pdu_len);
114 return 1;
115 }
116
117 return 0;
118}
119
Jens Axboea64e88d2011-10-03 14:20:01 +0200120/*
121 * Read (and defragment, if necessary) incoming commands
122 */
Jens Axboee951bdc2011-10-05 21:58:45 +0200123struct fio_net_cmd *fio_net_recv_cmd(int sk)
Jens Axboe132159a2011-09-30 15:01:32 -0600124{
Jens Axboea64e88d2011-10-03 14:20:01 +0200125 struct fio_net_cmd cmd, *cmdret = NULL;
126 size_t cmd_size = 0, pdu_offset = 0;
Jens Axboefcee5ff2011-09-30 22:50:39 -0600127 uint16_t crc;
Jens Axboea64e88d2011-10-03 14:20:01 +0200128 int ret, first = 1;
129 void *pdu = NULL;
Jens Axboe132159a2011-09-30 15:01:32 -0600130
Jens Axboea64e88d2011-10-03 14:20:01 +0200131 do {
132 ret = fio_recv_data(sk, &cmd, sizeof(cmd));
133 if (ret)
134 break;
Jens Axboe132159a2011-09-30 15:01:32 -0600135
Jens Axboea64e88d2011-10-03 14:20:01 +0200136 /* We have a command, verify it and swap if need be */
137 ret = verify_convert_cmd(&cmd);
138 if (ret)
139 break;
Jens Axboe132159a2011-09-30 15:01:32 -0600140
Jens Axboe0b8f30a2011-10-04 10:31:53 +0200141 if (first) {
142 /* if this is text, add room for \0 at the end */
143 cmd_size = sizeof(cmd) + cmd.pdu_len + 1;
144 assert(!cmdret);
145 } else
Jens Axboea64e88d2011-10-03 14:20:01 +0200146 cmd_size += cmd.pdu_len;
Jens Axboe132159a2011-09-30 15:01:32 -0600147
Jens Axboea64e88d2011-10-03 14:20:01 +0200148 cmdret = realloc(cmdret, cmd_size);
Jens Axboe132159a2011-09-30 15:01:32 -0600149
Jens Axboea64e88d2011-10-03 14:20:01 +0200150 if (first)
151 memcpy(cmdret, &cmd, sizeof(cmd));
152 else
153 assert(cmdret->opcode == cmd.opcode);
154
155 if (!cmd.pdu_len)
156 break;
157
158 /* There's payload, get it */
159 pdu = (void *) cmdret->payload + pdu_offset;
160 ret = fio_recv_data(sk, pdu, cmd.pdu_len);
161 if (ret)
162 break;
163
164 /* Verify payload crc */
165 crc = crc16(pdu, cmd.pdu_len);
166 if (crc != cmd.pdu_crc16) {
167 log_err("fio: server bad crc on payload ");
168 log_err("(got %x, wanted %x)\n", cmd.pdu_crc16, crc);
169 ret = 1;
170 break;
171 }
172
173 pdu_offset += cmd.pdu_len;
Jens Axboe817f06b2011-10-03 15:03:08 +0200174 if (!first)
175 cmdret->pdu_len += cmd.pdu_len;
Jens Axboea64e88d2011-10-03 14:20:01 +0200176 first = 0;
177 } while (cmd.flags & FIO_NET_CMD_F_MORE);
178
179 if (ret) {
180 free(cmdret);
181 cmdret = NULL;
Jens Axboe0b8f30a2011-10-04 10:31:53 +0200182 } else if (cmdret) {
183 /* zero-terminate text input */
184 if (cmdret->pdu_len && (cmdret->opcode == FIO_NET_CMD_TEXT ||
185 cmdret->opcode == FIO_NET_CMD_JOB)) {
186 char *buf = (char *) cmdret->payload;
187
188 buf[cmdret->pdu_len ] = '\0';
189 }
190 /* frag flag is internal */
Jens Axboea64e88d2011-10-03 14:20:01 +0200191 cmdret->flags &= ~FIO_NET_CMD_F_MORE;
Jens Axboe0b8f30a2011-10-04 10:31:53 +0200192 }
Jens Axboe132159a2011-09-30 15:01:32 -0600193
Jens Axboea64e88d2011-10-03 14:20:01 +0200194 return cmdret;
Jens Axboe132159a2011-09-30 15:01:32 -0600195}
196
197void fio_net_cmd_crc(struct fio_net_cmd *cmd)
198{
199 uint32_t pdu_len;
200
Jens Axboeddcc0b62011-10-03 14:45:27 +0200201 cmd->cmd_crc16 = __cpu_to_le16(crc16(cmd, FIO_NET_CMD_CRC_SZ));
Jens Axboe132159a2011-09-30 15:01:32 -0600202
203 pdu_len = le32_to_cpu(cmd->pdu_len);
204 if (pdu_len)
Jens Axboeddcc0b62011-10-03 14:45:27 +0200205 cmd->pdu_crc16 = __cpu_to_le16(crc16(cmd->payload, pdu_len));
Jens Axboe132159a2011-09-30 15:01:32 -0600206}
207
Jens Axboea64e88d2011-10-03 14:20:01 +0200208int fio_net_send_cmd(int fd, uint16_t opcode, const void *buf, off_t size)
Jens Axboe794d69c2011-10-01 08:48:50 -0600209{
210 struct fio_net_cmd *cmd;
211 size_t this_len;
212 int ret;
213
214 do {
215 this_len = size;
216 if (this_len > FIO_SERVER_MAX_PDU)
217 this_len = FIO_SERVER_MAX_PDU;
218
219 cmd = malloc(sizeof(*cmd) + this_len);
220
221 fio_init_net_cmd(cmd, opcode, buf, this_len);
222
223 if (this_len < size)
Jens Axboeddcc0b62011-10-03 14:45:27 +0200224 cmd->flags = __cpu_to_le32(FIO_NET_CMD_F_MORE);
Jens Axboe794d69c2011-10-01 08:48:50 -0600225
226 fio_net_cmd_crc(cmd);
227
228 ret = fio_send_data(fd, cmd, sizeof(*cmd) + this_len);
229 free(cmd);
230 size -= this_len;
231 buf += this_len;
232 } while (!ret && size);
233
234 return ret;
235}
236
Jens Axboecc0df002011-10-03 20:53:32 +0200237int fio_net_send_simple_cmd(int sk, uint16_t opcode, uint64_t serial)
Jens Axboe132159a2011-09-30 15:01:32 -0600238{
Jens Axboe178cde92011-10-05 22:14:31 +0200239 struct fio_net_cmd cmd;
Jens Axboe132159a2011-09-30 15:01:32 -0600240
Jens Axboe178cde92011-10-05 22:14:31 +0200241 fio_init_net_cmd(&cmd, opcode, NULL, 0);
Jens Axboe132159a2011-09-30 15:01:32 -0600242 fio_net_cmd_crc(&cmd);
243
244 return fio_send_data(sk, &cmd, sizeof(cmd));
245}
246
Jens Axboe9abea482011-10-04 13:21:54 +0200247static int fio_server_send_quit_cmd(void)
Jens Axboe437377e2011-10-01 08:31:30 -0600248{
Jens Axboe46c48f12011-10-01 12:50:51 -0600249 dprint(FD_NET, "server: sending quit\n");
Jens Axboecc0df002011-10-03 20:53:32 +0200250 return fio_net_send_simple_cmd(server_fd, FIO_NET_CMD_QUIT, 0);
Jens Axboe437377e2011-10-01 08:31:30 -0600251}
252
Jens Axboe0b8f30a2011-10-04 10:31:53 +0200253static int handle_job_cmd(struct fio_net_cmd *cmd)
Jens Axboe132159a2011-09-30 15:01:32 -0600254{
Jens Axboe0b8f30a2011-10-04 10:31:53 +0200255 char *buf = (char *) cmd->payload;
Jens Axboea64e88d2011-10-03 14:20:01 +0200256 int ret;
Jens Axboe132159a2011-09-30 15:01:32 -0600257
Jens Axboee6d1c662011-10-05 20:41:06 +0200258 if (parse_jobs_ini(buf, 1, 0)) {
259 fio_server_send_quit_cmd();
Jens Axboe81179ee2011-10-04 12:42:06 +0200260 return -1;
Jens Axboee6d1c662011-10-05 20:41:06 +0200261 }
Jens Axboe81179ee2011-10-04 12:42:06 +0200262
263 fio_net_send_simple_cmd(server_fd, FIO_NET_CMD_START, 0);
264
265 ret = exec_run();
Jens Axboe9abea482011-10-04 13:21:54 +0200266 fio_server_send_quit_cmd();
Jens Axboe81179ee2011-10-04 12:42:06 +0200267 reset_fio_state();
268 return ret;
269}
270
271static int handle_jobline_cmd(struct fio_net_cmd *cmd)
272{
273 struct cmd_line_pdu *pdu = (struct cmd_line_pdu *) cmd->payload;
274 char *argv[FIO_NET_CMD_JOBLINE_ARGV];
275 int ret, i;
276
277 pdu->argc = le16_to_cpu(pdu->argc);
278
Jens Axboe39e8e012011-10-04 13:46:08 +0200279 dprint(FD_NET, "server: %d command line args\n", pdu->argc);
280
281 for (i = 0; i < pdu->argc; i++) {
Jens Axboe81179ee2011-10-04 12:42:06 +0200282 argv[i] = (char *) pdu->argv[i];
Jens Axboe39e8e012011-10-04 13:46:08 +0200283 dprint(FD_NET, "server: %d: %s\n", i, argv[i]);
284 }
Jens Axboe81179ee2011-10-04 12:42:06 +0200285
Jens Axboee6d1c662011-10-05 20:41:06 +0200286 if (parse_cmd_line(pdu->argc, argv)) {
287 fio_server_send_quit_cmd();
Jens Axboe81179ee2011-10-04 12:42:06 +0200288 return -1;
Jens Axboee6d1c662011-10-05 20:41:06 +0200289 }
Jens Axboe81179ee2011-10-04 12:42:06 +0200290
291 fio_net_send_simple_cmd(server_fd, FIO_NET_CMD_START, 0);
292
Jens Axboe794d69c2011-10-01 08:48:50 -0600293 ret = exec_run();
Jens Axboe9abea482011-10-04 13:21:54 +0200294 fio_server_send_quit_cmd();
Jens Axboe794d69c2011-10-01 08:48:50 -0600295 reset_fio_state();
Jens Axboe132159a2011-09-30 15:01:32 -0600296 return ret;
297}
298
Jens Axboec28e8e82011-10-04 08:57:39 +0200299static int handle_probe_cmd(struct fio_net_cmd *cmd)
300{
301 struct cmd_probe_pdu probe;
302
303 memset(&probe, 0, sizeof(probe));
304 gethostname((char *) probe.hostname, sizeof(probe.hostname));
Jens Axboe6eb24792011-10-04 15:00:30 +0200305#ifdef FIO_BIG_ENDIAN
306 probe.bigendian = 1;
307#endif
Jens Axboe81179ee2011-10-04 12:42:06 +0200308 probe.fio_major = FIO_MAJOR;
309 probe.fio_minor = FIO_MINOR;
310 probe.fio_patch = FIO_PATCH;
Jens Axboec28e8e82011-10-04 08:57:39 +0200311
312 return fio_net_send_cmd(server_fd, FIO_NET_CMD_PROBE, &probe, sizeof(probe));
313}
314
Jens Axboe132159a2011-09-30 15:01:32 -0600315static int handle_command(struct fio_net_cmd *cmd)
316{
317 int ret;
318
Jens Axboe46c48f12011-10-01 12:50:51 -0600319 dprint(FD_NET, "server: got opcode %d\n", cmd->opcode);
320
Jens Axboe132159a2011-09-30 15:01:32 -0600321 switch (cmd->opcode) {
322 case FIO_NET_CMD_QUIT:
Jens Axboecc0df002011-10-03 20:53:32 +0200323 fio_terminate_threads(TERMINATE_ALL);
Jens Axboec28e8e82011-10-04 08:57:39 +0200324 return -1;
Jens Axboed7959182011-10-03 11:48:39 +0200325 case FIO_NET_CMD_EXIT:
Jens Axboe132159a2011-09-30 15:01:32 -0600326 exit_backend = 1;
Jens Axboec28e8e82011-10-04 08:57:39 +0200327 return -1;
Jens Axboe132159a2011-09-30 15:01:32 -0600328 case FIO_NET_CMD_JOB:
Jens Axboe0b8f30a2011-10-04 10:31:53 +0200329 ret = handle_job_cmd(cmd);
Jens Axboe132159a2011-09-30 15:01:32 -0600330 break;
Jens Axboe81179ee2011-10-04 12:42:06 +0200331 case FIO_NET_CMD_JOBLINE:
332 ret = handle_jobline_cmd(cmd);
333 break;
Jens Axboec28e8e82011-10-04 08:57:39 +0200334 case FIO_NET_CMD_PROBE:
335 ret = handle_probe_cmd(cmd);
336 break;
Jens Axboe132159a2011-09-30 15:01:32 -0600337 default:
338 log_err("fio: unknown opcode: %d\n", cmd->opcode);
339 ret = 1;
340 }
341
342 return ret;
343}
344
Jens Axboe70e0c312011-10-04 09:18:30 +0200345static int handle_connection(int sk, int block)
Jens Axboe132159a2011-09-30 15:01:32 -0600346{
347 struct fio_net_cmd *cmd = NULL;
348 int ret = 0;
349
350 /* read forever */
351 while (!exit_backend) {
Jens Axboee951bdc2011-10-05 21:58:45 +0200352 struct pollfd pfd = {
353 .fd = sk,
354 .events = POLLIN,
355 };
356
357 ret = 0;
358 do {
359 ret = poll(&pfd, 1, 100);
360 if (ret < 0) {
361 if (errno == EINTR)
362 break;
363 log_err("fio: poll: %s\n", strerror(errno));
364 break;
Jens Axboe19c65172011-10-05 22:05:37 +0200365 } else if (!ret) {
366 if (!block)
367 return 0;
Jens Axboee951bdc2011-10-05 21:58:45 +0200368 continue;
Jens Axboe19c65172011-10-05 22:05:37 +0200369 }
Jens Axboee951bdc2011-10-05 21:58:45 +0200370
371 if (pfd.revents & POLLIN)
372 break;
373 if (pfd.revents & (POLLERR|POLLHUP)) {
374 ret = 1;
375 break;
376 }
Jens Axboe19c65172011-10-05 22:05:37 +0200377 } while (!exit_backend);
Jens Axboee951bdc2011-10-05 21:58:45 +0200378
379 if (ret < 0)
380 break;
381
382 cmd = fio_net_recv_cmd(sk);
Jens Axboe132159a2011-09-30 15:01:32 -0600383 if (!cmd) {
Jens Axboec28e8e82011-10-04 08:57:39 +0200384 ret = -1;
Jens Axboe132159a2011-09-30 15:01:32 -0600385 break;
386 }
387
Jens Axboe132159a2011-09-30 15:01:32 -0600388 ret = handle_command(cmd);
389 if (ret)
390 break;
391
392 free(cmd);
Jens Axboec77a99e2011-10-01 16:26:42 -0400393 cmd = NULL;
Jens Axboe132159a2011-09-30 15:01:32 -0600394 }
395
396 if (cmd)
397 free(cmd);
398
399 return ret;
400}
401
Jens Axboecc0df002011-10-03 20:53:32 +0200402void fio_server_idle_loop(void)
403{
404 if (server_fd != -1)
Jens Axboe70e0c312011-10-04 09:18:30 +0200405 handle_connection(server_fd, 0);
Jens Axboecc0df002011-10-03 20:53:32 +0200406}
407
Jens Axboe50d16972011-09-29 17:45:28 -0600408static int accept_loop(int listen_sk)
409{
Jens Axboebb447a22011-10-04 15:06:42 +0200410 struct sockaddr_in addr;
Jens Axboe5ba13ea2011-10-04 23:50:28 +0200411 fio_socklen_t len = sizeof(addr);
Jens Axboe009b1be2011-09-29 18:27:02 -0600412 struct pollfd pfd;
Jens Axboe132159a2011-09-30 15:01:32 -0600413 int ret, sk, flags, exitval = 0;
Jens Axboe50d16972011-09-29 17:45:28 -0600414
Jens Axboe60efd142011-10-04 13:30:11 +0200415 dprint(FD_NET, "server enter accept loop\n");
416
Jens Axboe009b1be2011-09-29 18:27:02 -0600417 flags = fcntl(listen_sk, F_GETFL);
418 flags |= O_NONBLOCK;
419 fcntl(listen_sk, F_SETFL, flags);
Jens Axboe50d16972011-09-29 17:45:28 -0600420again:
Jens Axboe009b1be2011-09-29 18:27:02 -0600421 pfd.fd = listen_sk;
422 pfd.events = POLLIN;
423 do {
424 ret = poll(&pfd, 1, 100);
425 if (ret < 0) {
426 if (errno == EINTR)
427 break;
Jens Axboefcee5ff2011-09-30 22:50:39 -0600428 log_err("fio: poll: %s\n", strerror(errno));
Jens Axboe009b1be2011-09-29 18:27:02 -0600429 goto out;
430 } else if (!ret)
431 continue;
432
433 if (pfd.revents & POLLIN)
434 break;
435 } while (!exit_backend);
436
437 if (exit_backend)
438 goto out;
439
Jens Axboe6b976bf2011-10-04 15:07:43 +0200440 sk = accept(listen_sk, (struct sockaddr *) &addr, &len);
Jens Axboe50d16972011-09-29 17:45:28 -0600441 if (sk < 0) {
Jens Axboe690e09a2011-09-29 18:38:08 -0600442 log_err("fio: accept: %s\n", strerror(errno));
Jens Axboe50d16972011-09-29 17:45:28 -0600443 return -1;
444 }
445
Jens Axboebb447a22011-10-04 15:06:42 +0200446 dprint(FD_NET, "server: connect from %s\n", inet_ntoa(addr.sin_addr));
Jens Axboe46c48f12011-10-01 12:50:51 -0600447
Jens Axboe37db14f2011-09-30 17:00:42 -0600448 server_fd = sk;
449
Jens Axboe70e0c312011-10-04 09:18:30 +0200450 exitval = handle_connection(sk, 1);
Jens Axboe50d16972011-09-29 17:45:28 -0600451
Jens Axboe37db14f2011-09-30 17:00:42 -0600452 server_fd = -1;
Jens Axboe50d16972011-09-29 17:45:28 -0600453 close(sk);
Jens Axboe5c341e92011-09-29 18:00:35 -0600454
Jens Axboe009b1be2011-09-29 18:27:02 -0600455 if (!exit_backend)
Jens Axboe5c341e92011-09-29 18:00:35 -0600456 goto again;
457
Jens Axboe009b1be2011-09-29 18:27:02 -0600458out:
Jens Axboe132159a2011-09-30 15:01:32 -0600459 return exitval;
Jens Axboe50d16972011-09-29 17:45:28 -0600460}
461
Jens Axboe142575e2011-09-30 17:35:45 -0600462int fio_server_text_output(const char *buf, unsigned int len)
Jens Axboe37db14f2011-09-30 17:00:42 -0600463{
Jens Axboe337d75a2011-10-01 12:36:32 -0600464 if (server_fd != -1)
465 return fio_net_send_cmd(server_fd, FIO_NET_CMD_TEXT, buf, len);
466
Jens Axboe5037b842011-10-04 17:32:16 +0200467 return fwrite(buf, len, 1, f_err);
Jens Axboe142575e2011-09-30 17:35:45 -0600468}
469
Jens Axboea64e88d2011-10-03 14:20:01 +0200470static void convert_io_stat(struct io_stat *dst, struct io_stat *src)
471{
472 dst->max_val = cpu_to_le64(src->max_val);
473 dst->min_val = cpu_to_le64(src->min_val);
474 dst->samples = cpu_to_le64(src->samples);
Jens Axboe802ad4a2011-10-05 09:51:58 +0200475
476 /*
477 * Encode to IEEE 754 for network transfer
478 */
479 dst->mean.u.i = __cpu_to_le64(fio_double_to_uint64(src->mean.u.f));
480 dst->S.u.i = __cpu_to_le64(fio_double_to_uint64(src->S.u.f));
Jens Axboea64e88d2011-10-03 14:20:01 +0200481}
482
483static void convert_gs(struct group_run_stats *dst, struct group_run_stats *src)
484{
485 int i;
486
487 for (i = 0; i < 2; i++) {
488 dst->max_run[i] = cpu_to_le64(src->max_run[i]);
489 dst->min_run[i] = cpu_to_le64(src->min_run[i]);
490 dst->max_bw[i] = cpu_to_le64(src->max_bw[i]);
491 dst->min_bw[i] = cpu_to_le64(src->min_bw[i]);
492 dst->io_kb[i] = cpu_to_le64(src->io_kb[i]);
493 dst->agg[i] = cpu_to_le64(src->agg[i]);
494 }
495
496 dst->kb_base = cpu_to_le32(src->kb_base);
497 dst->groupid = cpu_to_le32(src->groupid);
498}
499
500/*
501 * Send a CMD_TS, which packs struct thread_stat and group_run_stats
502 * into a single payload.
503 */
504void fio_server_send_ts(struct thread_stat *ts, struct group_run_stats *rs)
505{
506 struct cmd_ts_pdu p;
507 int i, j;
508
Jens Axboe60efd142011-10-04 13:30:11 +0200509 dprint(FD_NET, "server sending end stats\n");
510
Jens Axboe317b3c82011-10-03 21:47:27 +0200511 memset(&p, 0, sizeof(p));
512
Jens Axboea64e88d2011-10-03 14:20:01 +0200513 strcpy(p.ts.name, ts->name);
514 strcpy(p.ts.verror, ts->verror);
515 strcpy(p.ts.description, ts->description);
516
Jens Axboeddcc0b62011-10-03 14:45:27 +0200517 p.ts.error = cpu_to_le32(ts->error);
Jens Axboea64e88d2011-10-03 14:20:01 +0200518 p.ts.groupid = cpu_to_le32(ts->groupid);
Jens Axboeddcc0b62011-10-03 14:45:27 +0200519 p.ts.pid = cpu_to_le32(ts->pid);
Jens Axboea64e88d2011-10-03 14:20:01 +0200520 p.ts.members = cpu_to_le32(ts->members);
521
522 for (i = 0; i < 2; i++) {
523 convert_io_stat(&p.ts.clat_stat[i], &ts->clat_stat[i]);
524 convert_io_stat(&p.ts.slat_stat[i], &ts->slat_stat[i]);
525 convert_io_stat(&p.ts.lat_stat[i], &ts->lat_stat[i]);
526 convert_io_stat(&p.ts.bw_stat[i], &ts->bw_stat[i]);
527 }
528
529 p.ts.usr_time = cpu_to_le64(ts->usr_time);
530 p.ts.sys_time = cpu_to_le64(ts->sys_time);
531 p.ts.ctx = cpu_to_le64(ts->ctx);
532 p.ts.minf = cpu_to_le64(ts->minf);
533 p.ts.majf = cpu_to_le64(ts->majf);
534 p.ts.clat_percentiles = cpu_to_le64(ts->clat_percentiles);
Jens Axboe802ad4a2011-10-05 09:51:58 +0200535
536 for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) {
537 fio_fp64_t *fp = &p.ts.percentile_list[i];
538
539 fp->u.i = __cpu_to_le64(fio_double_to_uint64(fp->u.f));
540 }
Jens Axboea64e88d2011-10-03 14:20:01 +0200541
542 for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
543 p.ts.io_u_map[i] = cpu_to_le32(ts->io_u_map[i]);
544 p.ts.io_u_submit[i] = cpu_to_le32(ts->io_u_submit[i]);
545 p.ts.io_u_complete[i] = cpu_to_le32(ts->io_u_complete[i]);
546 }
547
548 for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) {
549 p.ts.io_u_lat_u[i] = cpu_to_le32(ts->io_u_lat_u[i]);
550 p.ts.io_u_lat_m[i] = cpu_to_le32(ts->io_u_lat_m[i]);
551 }
552
553 for (i = 0; i < 2; i++)
554 for (j = 0; j < FIO_IO_U_PLAT_NR; j++)
555 p.ts.io_u_plat[i][j] = cpu_to_le32(ts->io_u_plat[i][j]);
556
557 for (i = 0; i < 3; i++) {
558 p.ts.total_io_u[i] = cpu_to_le64(ts->total_io_u[i]);
Jens Axboe93eee042011-10-03 21:08:48 +0200559 p.ts.short_io_u[i] = cpu_to_le64(ts->short_io_u[i]);
Jens Axboea64e88d2011-10-03 14:20:01 +0200560 }
561
Jens Axboe93eee042011-10-03 21:08:48 +0200562 p.ts.total_submit = cpu_to_le64(ts->total_submit);
Jens Axboea64e88d2011-10-03 14:20:01 +0200563 p.ts.total_complete = cpu_to_le64(ts->total_complete);
564
565 for (i = 0; i < 2; i++) {
566 p.ts.io_bytes[i] = cpu_to_le64(ts->io_bytes[i]);
567 p.ts.runtime[i] = cpu_to_le64(ts->runtime[i]);
568 }
569
570 p.ts.total_run_time = cpu_to_le64(ts->total_run_time);
571 p.ts.continue_on_error = cpu_to_le16(ts->continue_on_error);
572 p.ts.total_err_count = cpu_to_le64(ts->total_err_count);
Jens Axboeddcc0b62011-10-03 14:45:27 +0200573 p.ts.first_error = cpu_to_le32(ts->first_error);
574 p.ts.kb_base = cpu_to_le32(ts->kb_base);
Jens Axboea64e88d2011-10-03 14:20:01 +0200575
576 convert_gs(&p.rs, rs);
577
578 fio_net_send_cmd(server_fd, FIO_NET_CMD_TS, &p, sizeof(p));
579}
580
581void fio_server_send_gs(struct group_run_stats *rs)
582{
583 struct group_run_stats gs;
584
Jens Axboe60efd142011-10-04 13:30:11 +0200585 dprint(FD_NET, "server sending group run stats\n");
586
Jens Axboea64e88d2011-10-03 14:20:01 +0200587 convert_gs(&gs, rs);
588 fio_net_send_cmd(server_fd, FIO_NET_CMD_GS, &gs, sizeof(gs));
589}
590
Jens Axboecf451d12011-10-03 16:48:30 +0200591void fio_server_send_status(void)
592{
Jens Axboe1d1f45a2011-10-03 19:44:41 +0200593 struct jobs_eta *je;
594 size_t size;
595 void *buf;
Jens Axboecf451d12011-10-03 16:48:30 +0200596 int i;
597
Jens Axboe1d1f45a2011-10-03 19:44:41 +0200598 size = sizeof(*je) + thread_number * sizeof(char);
599 buf = malloc(size);
600 memset(buf, 0, size);
601 je = buf;
602
603 if (!calc_thread_status(je)) {
604 free(je);
Jens Axboecf451d12011-10-03 16:48:30 +0200605 return;
Jens Axboecf451d12011-10-03 16:48:30 +0200606 }
607
Jens Axboe60efd142011-10-04 13:30:11 +0200608 dprint(FD_NET, "server sending status\n");
609
Jens Axboe1d1f45a2011-10-03 19:44:41 +0200610 je->nr_running = cpu_to_le32(je->nr_running);
611 je->nr_ramp = cpu_to_le32(je->nr_ramp);
612 je->nr_pending = cpu_to_le32(je->nr_pending);
613 je->files_open = cpu_to_le32(je->files_open);
614 je->m_rate = cpu_to_le32(je->m_rate);
615 je->t_rate = cpu_to_le32(je->t_rate);
616 je->m_iops = cpu_to_le32(je->m_iops);
617 je->t_iops = cpu_to_le32(je->t_iops);
Jens Axboecf451d12011-10-03 16:48:30 +0200618
Jens Axboe1d1f45a2011-10-03 19:44:41 +0200619 for (i = 0; i < 2; i++) {
620 je->rate[i] = cpu_to_le32(je->rate[i]);
621 je->iops[i] = cpu_to_le32(je->iops[i]);
622 }
623
624 je->elapsed_sec = cpu_to_le32(je->nr_running);
625 je->eta_sec = cpu_to_le64(je->eta_sec);
626
627 fio_net_send_cmd(server_fd, FIO_NET_CMD_ETA, buf, size);
628 free(je);
Jens Axboecf451d12011-10-03 16:48:30 +0200629}
630
Jens Axboe142575e2011-09-30 17:35:45 -0600631int fio_server_log(const char *format, ...)
632{
633 char buffer[1024];
634 va_list args;
Jens Axboe82fa6b22011-09-30 22:29:08 -0600635 size_t len;
Jens Axboe142575e2011-09-30 17:35:45 -0600636
Jens Axboe60efd142011-10-04 13:30:11 +0200637 dprint(FD_NET, "server log\n");
638
Jens Axboe142575e2011-09-30 17:35:45 -0600639 va_start(args, format);
Jens Axboe82fa6b22011-09-30 22:29:08 -0600640 len = vsnprintf(buffer, sizeof(buffer), format, args);
Jens Axboe142575e2011-09-30 17:35:45 -0600641 va_end(args);
642
Jens Axboe82fa6b22011-09-30 22:29:08 -0600643 return fio_server_text_output(buffer, len);
Jens Axboe37db14f2011-09-30 17:00:42 -0600644}
Jens Axboee46d8092011-10-03 09:11:02 +0200645
Jens Axboe87aa8f12011-10-06 21:24:13 +0200646static int fio_init_server_ip(void)
Jens Axboe81179ee2011-10-04 12:42:06 +0200647{
Jens Axboe87aa8f12011-10-06 21:24:13 +0200648 int sk, opt;
Jens Axboe81179ee2011-10-04 12:42:06 +0200649
650 sk = socket(AF_INET, SOCK_STREAM, 0);
651 if (sk < 0) {
652 log_err("fio: socket: %s\n", strerror(errno));
653 return -1;
654 }
655
656 opt = 1;
657 if (setsockopt(sk, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt)) < 0) {
658 log_err("fio: setsockopt: %s\n", strerror(errno));
Jens Axboeb94cba42011-10-06 21:27:10 +0200659 close(sk);
Jens Axboe81179ee2011-10-04 12:42:06 +0200660 return -1;
661 }
662#ifdef SO_REUSEPORT
Jens Axboe6eb24792011-10-04 15:00:30 +0200663 if (setsockopt(sk, SOL_SOCKET, SO_REUSEPORT, &opt, sizeof(opt)) < 0) {
Jens Axboe81179ee2011-10-04 12:42:06 +0200664 log_err("fio: setsockopt: %s\n", strerror(errno));
Jens Axboeb94cba42011-10-06 21:27:10 +0200665 close(sk);
Jens Axboe81179ee2011-10-04 12:42:06 +0200666 return -1;
667 }
668#endif
669
670 saddr_in.sin_family = AF_INET;
Jens Axboe81179ee2011-10-04 12:42:06 +0200671
672 if (bind(sk, (struct sockaddr *) &saddr_in, sizeof(saddr_in)) < 0) {
673 log_err("fio: bind: %s\n", strerror(errno));
Jens Axboeb94cba42011-10-06 21:27:10 +0200674 close(sk);
Jens Axboe81179ee2011-10-04 12:42:06 +0200675 return -1;
676 }
677
Jens Axboe87aa8f12011-10-06 21:24:13 +0200678 return sk;
679}
680
681static int fio_init_server_sock(void)
682{
683 struct sockaddr_un addr;
684 fio_socklen_t len;
685 mode_t mode;
686 int sk;
687
688 sk = socket(AF_UNIX, SOCK_STREAM, 0);
689 if (sk < 0) {
690 log_err("fio: socket: %s\n", strerror(errno));
691 return -1;
692 }
693
694 mode = umask(000);
695
696 memset(&addr, 0, sizeof(addr));
697 addr.sun_family = AF_UNIX;
698 strcpy(addr.sun_path, bind_sock);
699 unlink(bind_sock);
700
701 len = sizeof(addr.sun_family) + strlen(bind_sock) + 1;
702
703 if (bind(sk, (struct sockaddr *) &addr, len) < 0) {
704 log_err("fio: bind: %s\n", strerror(errno));
Jens Axboeb94cba42011-10-06 21:27:10 +0200705 close(sk);
Jens Axboe87aa8f12011-10-06 21:24:13 +0200706 return -1;
707 }
708
709 umask(mode);
710 return sk;
711}
712
713static int fio_init_server_connection(void)
714{
Jens Axboebebe6392011-10-07 10:00:51 +0200715 char bind_str[128];
Jens Axboe87aa8f12011-10-06 21:24:13 +0200716 int sk;
717
718 dprint(FD_NET, "starting server\n");
719
720 if (!bind_sock)
721 sk = fio_init_server_ip();
722 else
723 sk = fio_init_server_sock();
724
725 if (sk < 0)
726 return sk;
727
Jens Axboebebe6392011-10-07 10:00:51 +0200728 if (!bind_sock)
729 sprintf(bind_str, "%s:%u", inet_ntoa(saddr_in.sin_addr), fio_net_port);
730 else
731 strcpy(bind_str, bind_sock);
732
733 log_info("fio: server listening on %s\n", bind_str);
734
Jens Axboe81179ee2011-10-04 12:42:06 +0200735 if (listen(sk, 1) < 0) {
736 log_err("fio: listen: %s\n", strerror(errno));
737 return -1;
738 }
739
Jens Axboe87aa8f12011-10-06 21:24:13 +0200740 return sk;
741}
742
Jens Axboebebe6392011-10-07 10:00:51 +0200743int fio_server_parse_string(const char *str, char **ptr, int *is_sock,
744 int *port, struct in_addr *inp)
745{
746 *ptr = NULL;
747 *is_sock = 0;
748 *port = 0;
749
750 if (!strncmp(str, "sock:", 5)) {
751 *ptr = strdup(str + 5);
752 *is_sock = 1;
753 } else {
754 const char *host = str;
755 char *portp;
756 int lport = 0;
757
758 /*
759 * Is it ip:<ip or host>:port
760 */
761 if (!strncmp(host, "ip:", 3))
762 host += 3;
763 else if (host[0] == ':') {
764 /* String is :port */
765 host++;
766 lport = atoi(host);
767 if (!lport || lport > 65535) {
768 log_err("fio: bad server port %u\n", port);
769 return 1;
770 }
771 /* no hostname given, we are done */
772 *port = lport;
773 return 0;
774 }
775
776 /*
777 * If no port seen yet, check if there's a last ':' at the end
778 */
779 if (!lport) {
780 portp = strchr(host, ':');
781 if (portp) {
782 *portp = '\0';
783 portp++;
784 lport = atoi(portp);
785 if (!lport || lport > 65535) {
786 log_err("fio: bad server port %u\n", port);
787 return 1;
788 }
789 }
790 }
791
792 if (lport)
793 *port = lport;
794
795 *ptr = strdup(host);
796
797 if (inet_aton(host, inp) != 1) {
798 struct hostent *hent;
799
800 hent = gethostbyname(host);
801 if (!hent) {
802 printf("FAIL\n");
803 free(*ptr);
804 *ptr = NULL;
805 return 1;
806 }
807
808 memcpy(inp, hent->h_addr, 4);
809 }
810 }
811
812 if (*port == 0)
813 *port = fio_net_port;
814
815 return 0;
816}
817
Jens Axboe87aa8f12011-10-06 21:24:13 +0200818/*
819 * Server arg should be one of:
820 *
821 * sock:/path/to/socket
822 * ip:1.2.3.4
823 * 1.2.3.4
824 *
825 * Where sock uses unix domain sockets, and ip binds the server to
826 * a specific interface. If no arguments are given to the server, it
827 * uses IP and binds to 0.0.0.0.
828 *
829 */
830static int fio_handle_server_arg(void)
831{
Jens Axboe4e5b8fb2011-10-07 10:03:44 +0200832 int is_sock, ret;
Jens Axboebebe6392011-10-07 10:00:51 +0200833
Jens Axboe87aa8f12011-10-06 21:24:13 +0200834 saddr_in.sin_addr.s_addr = htonl(INADDR_ANY);
Jens Axboebebe6392011-10-07 10:00:51 +0200835 saddr_in.sin_port = htons(fio_net_port);
Jens Axboe87aa8f12011-10-06 21:24:13 +0200836
837 if (!fio_server_arg)
838 return 0;
Jens Axboe87aa8f12011-10-06 21:24:13 +0200839
Jens Axboe4e5b8fb2011-10-07 10:03:44 +0200840 ret = fio_server_parse_string(fio_server_arg, &bind_sock, &is_sock,
Jens Axboebebe6392011-10-07 10:00:51 +0200841 &fio_net_port, &saddr_in.sin_addr);
Jens Axboe4e5b8fb2011-10-07 10:03:44 +0200842
843 if (!is_sock && bind_sock) {
844 free(bind_sock);
845 bind_sock = NULL;
846 }
847
848 return ret;
Jens Axboe87aa8f12011-10-06 21:24:13 +0200849}
850
851static int fio_server(void)
852{
853 int sk, ret;
854
855 dprint(FD_NET, "starting server\n");
856
857 if (fio_handle_server_arg())
858 return -1;
859
860 sk = fio_init_server_connection();
861 if (sk < 0)
862 return -1;
Jens Axboe81179ee2011-10-04 12:42:06 +0200863
864 ret = accept_loop(sk);
Jens Axboe87aa8f12011-10-06 21:24:13 +0200865
Jens Axboe81179ee2011-10-04 12:42:06 +0200866 close(sk);
Jens Axboe87aa8f12011-10-06 21:24:13 +0200867
868 if (fio_server_arg) {
869 free(fio_server_arg);
870 fio_server_arg = NULL;
871 }
Jens Axboebebe6392011-10-07 10:00:51 +0200872 if (bind_sock)
873 free(bind_sock);
Jens Axboe87aa8f12011-10-06 21:24:13 +0200874
Jens Axboe81179ee2011-10-04 12:42:06 +0200875 return ret;
876}
877
Jens Axboe9abea482011-10-04 13:21:54 +0200878static void sig_int(int sig)
879{
880 fio_terminate_threads(TERMINATE_ALL);
881 exit_backend = 1;
882}
883
884static void server_signal_handler(void)
885{
886 struct sigaction act;
887
888 memset(&act, 0, sizeof(act));
889 act.sa_handler = sig_int;
890 act.sa_flags = SA_RESTART;
891 sigaction(SIGINT, &act, NULL);
892
893 memset(&act, 0, sizeof(act));
894 act.sa_handler = sig_int;
895 act.sa_flags = SA_RESTART;
896 sigaction(SIGTERM, &act, NULL);
897}
898
Jens Axboee46d8092011-10-03 09:11:02 +0200899int fio_start_server(int daemonize)
900{
901 pid_t pid;
902
Jens Axboe9abea482011-10-04 13:21:54 +0200903 server_signal_handler();
904
Jens Axboee46d8092011-10-03 09:11:02 +0200905 if (!daemonize)
906 return fio_server();
907
908 openlog("fio", LOG_NDELAY|LOG_NOWAIT|LOG_PID, LOG_USER);
909 pid = fork();
910 if (pid < 0) {
911 syslog(LOG_ERR, "failed server fork");
Jens Axboec28e8e82011-10-04 08:57:39 +0200912 return -1;
Jens Axboee46d8092011-10-03 09:11:02 +0200913 } else if (pid)
914 exit(0);
915
916 setsid();
917 close(STDIN_FILENO);
918 close(STDOUT_FILENO);
919 close(STDERR_FILENO);
920 f_out = NULL;
921 f_err = NULL;
922 log_syslog = 1;
923 return fio_server();
924}
Jens Axboe87aa8f12011-10-06 21:24:13 +0200925
Jens Axboebebe6392011-10-07 10:00:51 +0200926void fio_server_set_arg(const char *arg)
Jens Axboe87aa8f12011-10-06 21:24:13 +0200927{
928 fio_server_arg = strdup(arg);
929}