Commit | Line | Data |
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50d16976 JA |
1 | #include <stdio.h> |
2 | #include <stdlib.h> | |
142575e6 | 3 | #include <stdarg.h> |
50d16976 JA |
4 | #include <unistd.h> |
5 | #include <limits.h> | |
50d16976 JA |
6 | #include <errno.h> |
7 | #include <fcntl.h> | |
8 | #include <sys/poll.h> | |
50d16976 JA |
9 | #include <sys/types.h> |
10 | #include <sys/wait.h> | |
d05c4a03 | 11 | #include <sys/socket.h> |
87aa8f19 JA |
12 | #include <sys/stat.h> |
13 | #include <sys/un.h> | |
50d16976 JA |
14 | #include <netinet/in.h> |
15 | #include <arpa/inet.h> | |
16 | #include <netdb.h> | |
e46d8091 | 17 | #include <syslog.h> |
9e22ecb0 | 18 | #include <signal.h> |
50d16976 JA |
19 | |
20 | #include "fio.h" | |
132159a5 | 21 | #include "server.h" |
fcee5ff6 | 22 | #include "crc/crc16.h" |
802ad4a8 | 23 | #include "ieee754.h" |
89cf1480 JA |
24 | |
25 | #include "fio_version.h" | |
50d16976 | 26 | |
132159a5 | 27 | int fio_net_port = 8765; |
50d16976 | 28 | |
009b1be4 JA |
29 | int exit_backend = 0; |
30 | ||
46c48f1f | 31 | static int server_fd = -1; |
87aa8f19 JA |
32 | static char *fio_server_arg; |
33 | static char *bind_sock; | |
34 | static struct sockaddr_in saddr_in; | |
37db14fe | 35 | |
89c1707c JA |
36 | static const char *fio_server_ops[FIO_NET_CMD_NR] = { |
37 | "", | |
38 | "QUIT", | |
39 | "EXIT", | |
40 | "JOB", | |
41 | "JOBLINE", | |
42 | "TEXT", | |
43 | "TS", | |
44 | "GS", | |
45 | "SEND_ETA", | |
46 | "ETA", | |
47 | "PROBE", | |
48 | "START", | |
49 | "STOP" | |
50 | }; | |
51 | ||
52 | const char *fio_server_op(unsigned int op) | |
53 | { | |
54 | static char buf[32]; | |
55 | ||
56 | if (op < FIO_NET_CMD_NR) | |
57 | return fio_server_ops[op]; | |
58 | ||
59 | sprintf(buf, "UNKNOWN/%d", op); | |
60 | return buf; | |
61 | } | |
62 | ||
132159a5 JA |
63 | int fio_send_data(int sk, const void *p, unsigned int len) |
64 | { | |
794d69ca JA |
65 | assert(len <= sizeof(struct fio_net_cmd) + FIO_SERVER_MAX_PDU); |
66 | ||
132159a5 JA |
67 | do { |
68 | int ret = send(sk, p, len, 0); | |
69 | ||
70 | if (ret > 0) { | |
71 | len -= ret; | |
72 | if (!len) | |
73 | break; | |
74 | p += ret; | |
75 | continue; | |
76 | } else if (!ret) | |
77 | break; | |
78 | else if (errno == EAGAIN || errno == EINTR) | |
79 | continue; | |
7b821684 JA |
80 | else |
81 | break; | |
132159a5 JA |
82 | } while (!exit_backend); |
83 | ||
84 | if (!len) | |
85 | return 0; | |
86 | ||
87 | return 1; | |
88 | } | |
89 | ||
90 | int fio_recv_data(int sk, void *p, unsigned int len) | |
91 | { | |
92 | do { | |
93 | int ret = recv(sk, p, len, MSG_WAITALL); | |
94 | ||
95 | if (ret > 0) { | |
96 | len -= ret; | |
97 | if (!len) | |
98 | break; | |
99 | p += ret; | |
100 | continue; | |
101 | } else if (!ret) | |
102 | break; | |
103 | else if (errno == EAGAIN || errno == EINTR) | |
104 | continue; | |
7b821684 JA |
105 | else |
106 | break; | |
132159a5 JA |
107 | } while (!exit_backend); |
108 | ||
109 | if (!len) | |
110 | return 0; | |
111 | ||
112 | return -1; | |
113 | } | |
114 | ||
115 | static int verify_convert_cmd(struct fio_net_cmd *cmd) | |
116 | { | |
fcee5ff6 | 117 | uint16_t crc; |
132159a5 | 118 | |
fcee5ff6 JA |
119 | cmd->cmd_crc16 = le16_to_cpu(cmd->cmd_crc16); |
120 | cmd->pdu_crc16 = le16_to_cpu(cmd->pdu_crc16); | |
132159a5 | 121 | |
fcee5ff6 JA |
122 | crc = crc16(cmd, FIO_NET_CMD_CRC_SZ); |
123 | if (crc != cmd->cmd_crc16) { | |
132159a5 | 124 | log_err("fio: server bad crc on command (got %x, wanted %x)\n", |
fcee5ff6 | 125 | cmd->cmd_crc16, crc); |
132159a5 JA |
126 | return 1; |
127 | } | |
128 | ||
129 | cmd->version = le16_to_cpu(cmd->version); | |
130 | cmd->opcode = le16_to_cpu(cmd->opcode); | |
131 | cmd->flags = le32_to_cpu(cmd->flags); | |
af9c9fb3 | 132 | cmd->tag = le64_to_cpu(cmd->tag); |
132159a5 JA |
133 | cmd->pdu_len = le32_to_cpu(cmd->pdu_len); |
134 | ||
135 | switch (cmd->version) { | |
fa2ea806 | 136 | case FIO_SERVER_VER: |
132159a5 JA |
137 | break; |
138 | default: | |
139 | log_err("fio: bad server cmd version %d\n", cmd->version); | |
140 | return 1; | |
141 | } | |
142 | ||
143 | if (cmd->pdu_len > FIO_SERVER_MAX_PDU) { | |
144 | log_err("fio: command payload too large: %u\n", cmd->pdu_len); | |
145 | return 1; | |
146 | } | |
147 | ||
148 | return 0; | |
149 | } | |
150 | ||
a64e88da JA |
151 | /* |
152 | * Read (and defragment, if necessary) incoming commands | |
153 | */ | |
e951bdc4 | 154 | struct fio_net_cmd *fio_net_recv_cmd(int sk) |
132159a5 | 155 | { |
a64e88da JA |
156 | struct fio_net_cmd cmd, *cmdret = NULL; |
157 | size_t cmd_size = 0, pdu_offset = 0; | |
fcee5ff6 | 158 | uint16_t crc; |
a64e88da JA |
159 | int ret, first = 1; |
160 | void *pdu = NULL; | |
132159a5 | 161 | |
a64e88da JA |
162 | do { |
163 | ret = fio_recv_data(sk, &cmd, sizeof(cmd)); | |
164 | if (ret) | |
165 | break; | |
132159a5 | 166 | |
a64e88da JA |
167 | /* We have a command, verify it and swap if need be */ |
168 | ret = verify_convert_cmd(&cmd); | |
169 | if (ret) | |
170 | break; | |
132159a5 | 171 | |
0b8f30a5 JA |
172 | if (first) { |
173 | /* if this is text, add room for \0 at the end */ | |
174 | cmd_size = sizeof(cmd) + cmd.pdu_len + 1; | |
175 | assert(!cmdret); | |
176 | } else | |
a64e88da | 177 | cmd_size += cmd.pdu_len; |
132159a5 | 178 | |
a64e88da | 179 | cmdret = realloc(cmdret, cmd_size); |
132159a5 | 180 | |
a64e88da JA |
181 | if (first) |
182 | memcpy(cmdret, &cmd, sizeof(cmd)); | |
183 | else | |
184 | assert(cmdret->opcode == cmd.opcode); | |
185 | ||
186 | if (!cmd.pdu_len) | |
187 | break; | |
188 | ||
189 | /* There's payload, get it */ | |
190 | pdu = (void *) cmdret->payload + pdu_offset; | |
191 | ret = fio_recv_data(sk, pdu, cmd.pdu_len); | |
192 | if (ret) | |
193 | break; | |
194 | ||
195 | /* Verify payload crc */ | |
196 | crc = crc16(pdu, cmd.pdu_len); | |
197 | if (crc != cmd.pdu_crc16) { | |
198 | log_err("fio: server bad crc on payload "); | |
199 | log_err("(got %x, wanted %x)\n", cmd.pdu_crc16, crc); | |
200 | ret = 1; | |
201 | break; | |
202 | } | |
203 | ||
204 | pdu_offset += cmd.pdu_len; | |
817f06bb JA |
205 | if (!first) |
206 | cmdret->pdu_len += cmd.pdu_len; | |
a64e88da JA |
207 | first = 0; |
208 | } while (cmd.flags & FIO_NET_CMD_F_MORE); | |
132159a5 | 209 | |
a64e88da JA |
210 | if (ret) { |
211 | free(cmdret); | |
212 | cmdret = NULL; | |
0b8f30a5 JA |
213 | } else if (cmdret) { |
214 | /* zero-terminate text input */ | |
215 | if (cmdret->pdu_len && (cmdret->opcode == FIO_NET_CMD_TEXT || | |
216 | cmdret->opcode == FIO_NET_CMD_JOB)) { | |
217 | char *buf = (char *) cmdret->payload; | |
218 | ||
219 | buf[cmdret->pdu_len ] = '\0'; | |
220 | } | |
221 | /* frag flag is internal */ | |
a64e88da | 222 | cmdret->flags &= ~FIO_NET_CMD_F_MORE; |
0b8f30a5 | 223 | } |
a64e88da JA |
224 | |
225 | return cmdret; | |
132159a5 JA |
226 | } |
227 | ||
228 | void fio_net_cmd_crc(struct fio_net_cmd *cmd) | |
229 | { | |
230 | uint32_t pdu_len; | |
231 | ||
ddcc0b69 | 232 | cmd->cmd_crc16 = __cpu_to_le16(crc16(cmd, FIO_NET_CMD_CRC_SZ)); |
132159a5 JA |
233 | |
234 | pdu_len = le32_to_cpu(cmd->pdu_len); | |
235 | if (pdu_len) | |
ddcc0b69 | 236 | cmd->pdu_crc16 = __cpu_to_le16(crc16(cmd->payload, pdu_len)); |
132159a5 JA |
237 | } |
238 | ||
af9c9fb3 JA |
239 | int fio_net_send_cmd(int fd, uint16_t opcode, const void *buf, off_t size, |
240 | uint64_t tag) | |
794d69ca | 241 | { |
7f868316 JA |
242 | struct fio_net_cmd *cmd = NULL; |
243 | size_t this_len, cur_len = 0; | |
794d69ca JA |
244 | int ret; |
245 | ||
246 | do { | |
247 | this_len = size; | |
248 | if (this_len > FIO_SERVER_MAX_PDU) | |
249 | this_len = FIO_SERVER_MAX_PDU; | |
250 | ||
7f868316 JA |
251 | if (!cmd || cur_len < sizeof(*cmd) + this_len) { |
252 | if (cmd) | |
253 | free(cmd); | |
254 | ||
255 | cur_len = sizeof(*cmd) + this_len; | |
256 | cmd = malloc(cur_len); | |
257 | } | |
794d69ca | 258 | |
af9c9fb3 | 259 | fio_init_net_cmd(cmd, opcode, buf, this_len, tag); |
794d69ca JA |
260 | |
261 | if (this_len < size) | |
ddcc0b69 | 262 | cmd->flags = __cpu_to_le32(FIO_NET_CMD_F_MORE); |
794d69ca JA |
263 | |
264 | fio_net_cmd_crc(cmd); | |
265 | ||
266 | ret = fio_send_data(fd, cmd, sizeof(*cmd) + this_len); | |
794d69ca JA |
267 | size -= this_len; |
268 | buf += this_len; | |
269 | } while (!ret && size); | |
270 | ||
7f868316 JA |
271 | if (cmd) |
272 | free(cmd); | |
273 | ||
794d69ca JA |
274 | return ret; |
275 | } | |
276 | ||
89c1707c | 277 | static int fio_net_send_simple_stack_cmd(int sk, uint16_t opcode, uint64_t tag) |
132159a5 | 278 | { |
178cde9f | 279 | struct fio_net_cmd cmd; |
132159a5 | 280 | |
af9c9fb3 | 281 | fio_init_net_cmd(&cmd, opcode, NULL, 0, tag); |
132159a5 JA |
282 | fio_net_cmd_crc(&cmd); |
283 | ||
284 | return fio_send_data(sk, &cmd, sizeof(cmd)); | |
285 | } | |
286 | ||
89c1707c JA |
287 | /* |
288 | * If 'list' is non-NULL, then allocate and store the sent command for | |
289 | * later verification. | |
290 | */ | |
291 | int fio_net_send_simple_cmd(int sk, uint16_t opcode, uint64_t tag, | |
292 | struct flist_head *list) | |
293 | { | |
294 | struct fio_net_int_cmd *cmd; | |
295 | int ret; | |
296 | ||
297 | if (!list) | |
298 | return fio_net_send_simple_stack_cmd(sk, opcode, tag); | |
299 | ||
300 | cmd = malloc(sizeof(*cmd)); | |
301 | ||
302 | fio_init_net_cmd(&cmd->cmd, opcode, NULL, 0, (uint64_t) cmd); | |
303 | fio_net_cmd_crc(&cmd->cmd); | |
304 | ||
305 | INIT_FLIST_HEAD(&cmd->list); | |
306 | gettimeofday(&cmd->tv, NULL); | |
307 | cmd->saved_tag = tag; | |
308 | ||
309 | ret = fio_send_data(sk, &cmd->cmd, sizeof(cmd->cmd)); | |
310 | if (ret) { | |
311 | free(cmd); | |
312 | return ret; | |
313 | } | |
314 | ||
315 | flist_add_tail(&cmd->list, list); | |
316 | return 0; | |
317 | } | |
318 | ||
9abea48b | 319 | static int fio_server_send_quit_cmd(void) |
437377e1 | 320 | { |
46c48f1f | 321 | dprint(FD_NET, "server: sending quit\n"); |
89c1707c | 322 | return fio_net_send_simple_cmd(server_fd, FIO_NET_CMD_QUIT, 0, NULL); |
437377e1 JA |
323 | } |
324 | ||
0b8f30a5 | 325 | static int handle_job_cmd(struct fio_net_cmd *cmd) |
132159a5 | 326 | { |
0b8f30a5 | 327 | char *buf = (char *) cmd->payload; |
a64e88da | 328 | int ret; |
132159a5 | 329 | |
e6d1c668 JA |
330 | if (parse_jobs_ini(buf, 1, 0)) { |
331 | fio_server_send_quit_cmd(); | |
81179eec | 332 | return -1; |
e6d1c668 | 333 | } |
81179eec | 334 | |
89c1707c | 335 | fio_net_send_simple_cmd(server_fd, FIO_NET_CMD_START, 0, NULL); |
81179eec JA |
336 | |
337 | ret = exec_run(); | |
9abea48b | 338 | fio_server_send_quit_cmd(); |
81179eec JA |
339 | reset_fio_state(); |
340 | return ret; | |
341 | } | |
342 | ||
343 | static int handle_jobline_cmd(struct fio_net_cmd *cmd) | |
344 | { | |
fa2ea806 JA |
345 | void *pdu = cmd->payload; |
346 | struct cmd_single_line_pdu *cslp; | |
347 | struct cmd_line_pdu *clp; | |
348 | unsigned long offset; | |
349 | char **argv; | |
81179eec JA |
350 | int ret, i; |
351 | ||
fa2ea806 JA |
352 | clp = pdu; |
353 | clp->lines = le16_to_cpu(clp->lines); | |
354 | argv = malloc(clp->lines * sizeof(char *)); | |
355 | offset = sizeof(*clp); | |
81179eec | 356 | |
fa2ea806 | 357 | dprint(FD_NET, "server: %d command line args\n", clp->lines); |
39e8e016 | 358 | |
fa2ea806 JA |
359 | for (i = 0; i < clp->lines; i++) { |
360 | cslp = pdu + offset; | |
361 | argv[i] = (char *) cslp->text; | |
362 | ||
363 | offset += sizeof(*cslp) + le16_to_cpu(cslp->len); | |
39e8e016 JA |
364 | dprint(FD_NET, "server: %d: %s\n", i, argv[i]); |
365 | } | |
81179eec | 366 | |
fa2ea806 | 367 | if (parse_cmd_line(clp->lines, argv)) { |
e6d1c668 | 368 | fio_server_send_quit_cmd(); |
fa2ea806 | 369 | free(argv); |
81179eec | 370 | return -1; |
e6d1c668 | 371 | } |
81179eec | 372 | |
fa2ea806 JA |
373 | free(argv); |
374 | ||
89c1707c | 375 | fio_net_send_simple_cmd(server_fd, FIO_NET_CMD_START, 0, NULL); |
81179eec | 376 | |
794d69ca | 377 | ret = exec_run(); |
9abea48b | 378 | fio_server_send_quit_cmd(); |
794d69ca | 379 | reset_fio_state(); |
132159a5 JA |
380 | return ret; |
381 | } | |
382 | ||
c28e8e8c JA |
383 | static int handle_probe_cmd(struct fio_net_cmd *cmd) |
384 | { | |
385 | struct cmd_probe_pdu probe; | |
386 | ||
89c1707c JA |
387 | dprint(FD_NET, "server: sending probe reply\n"); |
388 | ||
c28e8e8c JA |
389 | memset(&probe, 0, sizeof(probe)); |
390 | gethostname((char *) probe.hostname, sizeof(probe.hostname)); | |
6eb24791 JA |
391 | #ifdef FIO_BIG_ENDIAN |
392 | probe.bigendian = 1; | |
393 | #endif | |
81179eec JA |
394 | probe.fio_major = FIO_MAJOR; |
395 | probe.fio_minor = FIO_MINOR; | |
396 | probe.fio_patch = FIO_PATCH; | |
c28e8e8c | 397 | |
cca84643 JA |
398 | probe.os = FIO_OS; |
399 | probe.arch = FIO_ARCH; | |
400 | ||
89c1707c | 401 | return fio_net_send_cmd(server_fd, FIO_NET_CMD_PROBE, &probe, sizeof(probe), cmd->tag); |
af9c9fb3 JA |
402 | } |
403 | ||
404 | static int handle_send_eta_cmd(struct fio_net_cmd *cmd) | |
405 | { | |
406 | struct jobs_eta *je; | |
407 | size_t size; | |
af9c9fb3 JA |
408 | int i; |
409 | ||
410 | size = sizeof(*je) + thread_number * sizeof(char); | |
7f868316 JA |
411 | je = malloc(size); |
412 | memset(je, 0, size); | |
af9c9fb3 JA |
413 | |
414 | if (!calc_thread_status(je, 1)) { | |
415 | free(je); | |
416 | return 0; | |
417 | } | |
418 | ||
419 | dprint(FD_NET, "server sending status\n"); | |
420 | ||
421 | je->nr_running = cpu_to_le32(je->nr_running); | |
422 | je->nr_ramp = cpu_to_le32(je->nr_ramp); | |
423 | je->nr_pending = cpu_to_le32(je->nr_pending); | |
424 | je->files_open = cpu_to_le32(je->files_open); | |
425 | je->m_rate = cpu_to_le32(je->m_rate); | |
426 | je->t_rate = cpu_to_le32(je->t_rate); | |
427 | je->m_iops = cpu_to_le32(je->m_iops); | |
428 | je->t_iops = cpu_to_le32(je->t_iops); | |
429 | ||
430 | for (i = 0; i < 2; i++) { | |
431 | je->rate[i] = cpu_to_le32(je->rate[i]); | |
432 | je->iops[i] = cpu_to_le32(je->iops[i]); | |
433 | } | |
434 | ||
435 | je->elapsed_sec = cpu_to_le32(je->nr_running); | |
436 | je->eta_sec = cpu_to_le64(je->eta_sec); | |
437 | ||
7f868316 | 438 | fio_net_send_cmd(server_fd, FIO_NET_CMD_ETA, je, size, cmd->tag); |
af9c9fb3 JA |
439 | free(je); |
440 | return 0; | |
c28e8e8c JA |
441 | } |
442 | ||
132159a5 JA |
443 | static int handle_command(struct fio_net_cmd *cmd) |
444 | { | |
445 | int ret; | |
446 | ||
89c1707c JA |
447 | dprint(FD_NET, "server: got op [%s], pdu=%u, tag=%lx\n", |
448 | fio_server_op(cmd->opcode), cmd->pdu_len, cmd->tag); | |
46c48f1f | 449 | |
132159a5 JA |
450 | switch (cmd->opcode) { |
451 | case FIO_NET_CMD_QUIT: | |
cc0df00a | 452 | fio_terminate_threads(TERMINATE_ALL); |
c28e8e8c | 453 | return -1; |
d7959186 | 454 | case FIO_NET_CMD_EXIT: |
132159a5 | 455 | exit_backend = 1; |
c28e8e8c | 456 | return -1; |
132159a5 | 457 | case FIO_NET_CMD_JOB: |
0b8f30a5 | 458 | ret = handle_job_cmd(cmd); |
132159a5 | 459 | break; |
81179eec JA |
460 | case FIO_NET_CMD_JOBLINE: |
461 | ret = handle_jobline_cmd(cmd); | |
462 | break; | |
c28e8e8c JA |
463 | case FIO_NET_CMD_PROBE: |
464 | ret = handle_probe_cmd(cmd); | |
465 | break; | |
af9c9fb3 JA |
466 | case FIO_NET_CMD_SEND_ETA: |
467 | ret = handle_send_eta_cmd(cmd); | |
468 | break; | |
132159a5 | 469 | default: |
89c1707c | 470 | log_err("fio: unknown opcode: %s\n",fio_server_op(cmd->opcode)); |
132159a5 JA |
471 | ret = 1; |
472 | } | |
473 | ||
474 | return ret; | |
475 | } | |
476 | ||
70e0c316 | 477 | static int handle_connection(int sk, int block) |
132159a5 JA |
478 | { |
479 | struct fio_net_cmd *cmd = NULL; | |
480 | int ret = 0; | |
481 | ||
482 | /* read forever */ | |
483 | while (!exit_backend) { | |
e951bdc4 JA |
484 | struct pollfd pfd = { |
485 | .fd = sk, | |
486 | .events = POLLIN, | |
487 | }; | |
488 | ||
489 | ret = 0; | |
490 | do { | |
491 | ret = poll(&pfd, 1, 100); | |
492 | if (ret < 0) { | |
493 | if (errno == EINTR) | |
494 | break; | |
495 | log_err("fio: poll: %s\n", strerror(errno)); | |
496 | break; | |
19c65179 JA |
497 | } else if (!ret) { |
498 | if (!block) | |
499 | return 0; | |
e951bdc4 | 500 | continue; |
19c65179 | 501 | } |
e951bdc4 JA |
502 | |
503 | if (pfd.revents & POLLIN) | |
504 | break; | |
505 | if (pfd.revents & (POLLERR|POLLHUP)) { | |
506 | ret = 1; | |
507 | break; | |
508 | } | |
19c65179 | 509 | } while (!exit_backend); |
e951bdc4 JA |
510 | |
511 | if (ret < 0) | |
512 | break; | |
513 | ||
514 | cmd = fio_net_recv_cmd(sk); | |
132159a5 | 515 | if (!cmd) { |
c28e8e8c | 516 | ret = -1; |
132159a5 JA |
517 | break; |
518 | } | |
519 | ||
132159a5 JA |
520 | ret = handle_command(cmd); |
521 | if (ret) | |
522 | break; | |
523 | ||
524 | free(cmd); | |
c77a99e7 | 525 | cmd = NULL; |
132159a5 JA |
526 | } |
527 | ||
528 | if (cmd) | |
529 | free(cmd); | |
530 | ||
531 | return ret; | |
532 | } | |
533 | ||
cc0df00a JA |
534 | void fio_server_idle_loop(void) |
535 | { | |
536 | if (server_fd != -1) | |
70e0c316 | 537 | handle_connection(server_fd, 0); |
cc0df00a JA |
538 | } |
539 | ||
50d16976 JA |
540 | static int accept_loop(int listen_sk) |
541 | { | |
bb447a27 | 542 | struct sockaddr_in addr; |
5ba13ea6 | 543 | fio_socklen_t len = sizeof(addr); |
009b1be4 | 544 | struct pollfd pfd; |
132159a5 | 545 | int ret, sk, flags, exitval = 0; |
50d16976 | 546 | |
60efd14e JA |
547 | dprint(FD_NET, "server enter accept loop\n"); |
548 | ||
009b1be4 JA |
549 | flags = fcntl(listen_sk, F_GETFL); |
550 | flags |= O_NONBLOCK; | |
551 | fcntl(listen_sk, F_SETFL, flags); | |
50d16976 | 552 | again: |
009b1be4 JA |
553 | pfd.fd = listen_sk; |
554 | pfd.events = POLLIN; | |
555 | do { | |
556 | ret = poll(&pfd, 1, 100); | |
557 | if (ret < 0) { | |
558 | if (errno == EINTR) | |
559 | break; | |
fcee5ff6 | 560 | log_err("fio: poll: %s\n", strerror(errno)); |
009b1be4 JA |
561 | goto out; |
562 | } else if (!ret) | |
563 | continue; | |
564 | ||
565 | if (pfd.revents & POLLIN) | |
566 | break; | |
567 | } while (!exit_backend); | |
568 | ||
569 | if (exit_backend) | |
570 | goto out; | |
571 | ||
6b976bfc | 572 | sk = accept(listen_sk, (struct sockaddr *) &addr, &len); |
50d16976 | 573 | if (sk < 0) { |
690e09ae | 574 | log_err("fio: accept: %s\n", strerror(errno)); |
50d16976 JA |
575 | return -1; |
576 | } | |
577 | ||
bb447a27 | 578 | dprint(FD_NET, "server: connect from %s\n", inet_ntoa(addr.sin_addr)); |
46c48f1f | 579 | |
37db14fe JA |
580 | server_fd = sk; |
581 | ||
70e0c316 | 582 | exitval = handle_connection(sk, 1); |
50d16976 | 583 | |
37db14fe | 584 | server_fd = -1; |
50d16976 | 585 | close(sk); |
5c341e9a | 586 | |
009b1be4 | 587 | if (!exit_backend) |
5c341e9a JA |
588 | goto again; |
589 | ||
009b1be4 | 590 | out: |
132159a5 | 591 | return exitval; |
50d16976 JA |
592 | } |
593 | ||
13755d94 | 594 | int fio_server_text_output(const char *buf, size_t len) |
37db14fe | 595 | { |
337d75a8 | 596 | if (server_fd != -1) |
af9c9fb3 | 597 | return fio_net_send_cmd(server_fd, FIO_NET_CMD_TEXT, buf, len, 0); |
337d75a8 | 598 | |
13755d94 | 599 | return log_local_buf(buf, len); |
142575e6 JA |
600 | } |
601 | ||
a64e88da JA |
602 | static void convert_io_stat(struct io_stat *dst, struct io_stat *src) |
603 | { | |
604 | dst->max_val = cpu_to_le64(src->max_val); | |
605 | dst->min_val = cpu_to_le64(src->min_val); | |
606 | dst->samples = cpu_to_le64(src->samples); | |
802ad4a8 JA |
607 | |
608 | /* | |
609 | * Encode to IEEE 754 for network transfer | |
610 | */ | |
611 | dst->mean.u.i = __cpu_to_le64(fio_double_to_uint64(src->mean.u.f)); | |
612 | dst->S.u.i = __cpu_to_le64(fio_double_to_uint64(src->S.u.f)); | |
a64e88da JA |
613 | } |
614 | ||
615 | static void convert_gs(struct group_run_stats *dst, struct group_run_stats *src) | |
616 | { | |
617 | int i; | |
618 | ||
619 | for (i = 0; i < 2; i++) { | |
620 | dst->max_run[i] = cpu_to_le64(src->max_run[i]); | |
621 | dst->min_run[i] = cpu_to_le64(src->min_run[i]); | |
622 | dst->max_bw[i] = cpu_to_le64(src->max_bw[i]); | |
623 | dst->min_bw[i] = cpu_to_le64(src->min_bw[i]); | |
624 | dst->io_kb[i] = cpu_to_le64(src->io_kb[i]); | |
625 | dst->agg[i] = cpu_to_le64(src->agg[i]); | |
626 | } | |
627 | ||
628 | dst->kb_base = cpu_to_le32(src->kb_base); | |
629 | dst->groupid = cpu_to_le32(src->groupid); | |
630 | } | |
631 | ||
632 | /* | |
633 | * Send a CMD_TS, which packs struct thread_stat and group_run_stats | |
634 | * into a single payload. | |
635 | */ | |
636 | void fio_server_send_ts(struct thread_stat *ts, struct group_run_stats *rs) | |
637 | { | |
638 | struct cmd_ts_pdu p; | |
639 | int i, j; | |
640 | ||
60efd14e JA |
641 | dprint(FD_NET, "server sending end stats\n"); |
642 | ||
317b3c8b JA |
643 | memset(&p, 0, sizeof(p)); |
644 | ||
a64e88da JA |
645 | strcpy(p.ts.name, ts->name); |
646 | strcpy(p.ts.verror, ts->verror); | |
647 | strcpy(p.ts.description, ts->description); | |
648 | ||
ddcc0b69 | 649 | p.ts.error = cpu_to_le32(ts->error); |
a64e88da | 650 | p.ts.groupid = cpu_to_le32(ts->groupid); |
ddcc0b69 | 651 | p.ts.pid = cpu_to_le32(ts->pid); |
a64e88da JA |
652 | p.ts.members = cpu_to_le32(ts->members); |
653 | ||
654 | for (i = 0; i < 2; i++) { | |
655 | convert_io_stat(&p.ts.clat_stat[i], &ts->clat_stat[i]); | |
656 | convert_io_stat(&p.ts.slat_stat[i], &ts->slat_stat[i]); | |
657 | convert_io_stat(&p.ts.lat_stat[i], &ts->lat_stat[i]); | |
658 | convert_io_stat(&p.ts.bw_stat[i], &ts->bw_stat[i]); | |
659 | } | |
660 | ||
661 | p.ts.usr_time = cpu_to_le64(ts->usr_time); | |
662 | p.ts.sys_time = cpu_to_le64(ts->sys_time); | |
663 | p.ts.ctx = cpu_to_le64(ts->ctx); | |
664 | p.ts.minf = cpu_to_le64(ts->minf); | |
665 | p.ts.majf = cpu_to_le64(ts->majf); | |
666 | p.ts.clat_percentiles = cpu_to_le64(ts->clat_percentiles); | |
802ad4a8 JA |
667 | |
668 | for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) { | |
669 | fio_fp64_t *fp = &p.ts.percentile_list[i]; | |
670 | ||
671 | fp->u.i = __cpu_to_le64(fio_double_to_uint64(fp->u.f)); | |
672 | } | |
a64e88da JA |
673 | |
674 | for (i = 0; i < FIO_IO_U_MAP_NR; i++) { | |
675 | p.ts.io_u_map[i] = cpu_to_le32(ts->io_u_map[i]); | |
676 | p.ts.io_u_submit[i] = cpu_to_le32(ts->io_u_submit[i]); | |
677 | p.ts.io_u_complete[i] = cpu_to_le32(ts->io_u_complete[i]); | |
678 | } | |
679 | ||
680 | for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) { | |
681 | p.ts.io_u_lat_u[i] = cpu_to_le32(ts->io_u_lat_u[i]); | |
682 | p.ts.io_u_lat_m[i] = cpu_to_le32(ts->io_u_lat_m[i]); | |
683 | } | |
684 | ||
685 | for (i = 0; i < 2; i++) | |
686 | for (j = 0; j < FIO_IO_U_PLAT_NR; j++) | |
687 | p.ts.io_u_plat[i][j] = cpu_to_le32(ts->io_u_plat[i][j]); | |
688 | ||
689 | for (i = 0; i < 3; i++) { | |
690 | p.ts.total_io_u[i] = cpu_to_le64(ts->total_io_u[i]); | |
93eee04a | 691 | p.ts.short_io_u[i] = cpu_to_le64(ts->short_io_u[i]); |
a64e88da JA |
692 | } |
693 | ||
93eee04a | 694 | p.ts.total_submit = cpu_to_le64(ts->total_submit); |
a64e88da JA |
695 | p.ts.total_complete = cpu_to_le64(ts->total_complete); |
696 | ||
697 | for (i = 0; i < 2; i++) { | |
698 | p.ts.io_bytes[i] = cpu_to_le64(ts->io_bytes[i]); | |
699 | p.ts.runtime[i] = cpu_to_le64(ts->runtime[i]); | |
700 | } | |
701 | ||
702 | p.ts.total_run_time = cpu_to_le64(ts->total_run_time); | |
703 | p.ts.continue_on_error = cpu_to_le16(ts->continue_on_error); | |
704 | p.ts.total_err_count = cpu_to_le64(ts->total_err_count); | |
ddcc0b69 JA |
705 | p.ts.first_error = cpu_to_le32(ts->first_error); |
706 | p.ts.kb_base = cpu_to_le32(ts->kb_base); | |
a64e88da JA |
707 | |
708 | convert_gs(&p.rs, rs); | |
709 | ||
af9c9fb3 | 710 | fio_net_send_cmd(server_fd, FIO_NET_CMD_TS, &p, sizeof(p), 0); |
a64e88da JA |
711 | } |
712 | ||
713 | void fio_server_send_gs(struct group_run_stats *rs) | |
714 | { | |
715 | struct group_run_stats gs; | |
716 | ||
60efd14e JA |
717 | dprint(FD_NET, "server sending group run stats\n"); |
718 | ||
a64e88da | 719 | convert_gs(&gs, rs); |
af9c9fb3 | 720 | fio_net_send_cmd(server_fd, FIO_NET_CMD_GS, &gs, sizeof(gs), 0); |
cf451d1e JA |
721 | } |
722 | ||
142575e6 JA |
723 | int fio_server_log(const char *format, ...) |
724 | { | |
725 | char buffer[1024]; | |
726 | va_list args; | |
82fa6b21 | 727 | size_t len; |
142575e6 | 728 | |
60efd14e JA |
729 | dprint(FD_NET, "server log\n"); |
730 | ||
142575e6 | 731 | va_start(args, format); |
82fa6b21 | 732 | len = vsnprintf(buffer, sizeof(buffer), format, args); |
142575e6 JA |
733 | va_end(args); |
734 | ||
82fa6b21 | 735 | return fio_server_text_output(buffer, len); |
37db14fe | 736 | } |
e46d8091 | 737 | |
87aa8f19 | 738 | static int fio_init_server_ip(void) |
81179eec | 739 | { |
87aa8f19 | 740 | int sk, opt; |
81179eec JA |
741 | |
742 | sk = socket(AF_INET, SOCK_STREAM, 0); | |
743 | if (sk < 0) { | |
744 | log_err("fio: socket: %s\n", strerror(errno)); | |
745 | return -1; | |
746 | } | |
747 | ||
748 | opt = 1; | |
749 | if (setsockopt(sk, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt)) < 0) { | |
750 | log_err("fio: setsockopt: %s\n", strerror(errno)); | |
b94cba47 | 751 | close(sk); |
81179eec JA |
752 | return -1; |
753 | } | |
754 | #ifdef SO_REUSEPORT | |
6eb24791 | 755 | if (setsockopt(sk, SOL_SOCKET, SO_REUSEPORT, &opt, sizeof(opt)) < 0) { |
81179eec | 756 | log_err("fio: setsockopt: %s\n", strerror(errno)); |
b94cba47 | 757 | close(sk); |
81179eec JA |
758 | return -1; |
759 | } | |
760 | #endif | |
761 | ||
762 | saddr_in.sin_family = AF_INET; | |
81179eec JA |
763 | |
764 | if (bind(sk, (struct sockaddr *) &saddr_in, sizeof(saddr_in)) < 0) { | |
765 | log_err("fio: bind: %s\n", strerror(errno)); | |
b94cba47 | 766 | close(sk); |
81179eec JA |
767 | return -1; |
768 | } | |
769 | ||
87aa8f19 JA |
770 | return sk; |
771 | } | |
772 | ||
773 | static int fio_init_server_sock(void) | |
774 | { | |
775 | struct sockaddr_un addr; | |
776 | fio_socklen_t len; | |
777 | mode_t mode; | |
778 | int sk; | |
779 | ||
780 | sk = socket(AF_UNIX, SOCK_STREAM, 0); | |
781 | if (sk < 0) { | |
782 | log_err("fio: socket: %s\n", strerror(errno)); | |
783 | return -1; | |
784 | } | |
785 | ||
786 | mode = umask(000); | |
787 | ||
788 | memset(&addr, 0, sizeof(addr)); | |
789 | addr.sun_family = AF_UNIX; | |
790 | strcpy(addr.sun_path, bind_sock); | |
791 | unlink(bind_sock); | |
792 | ||
793 | len = sizeof(addr.sun_family) + strlen(bind_sock) + 1; | |
794 | ||
795 | if (bind(sk, (struct sockaddr *) &addr, len) < 0) { | |
796 | log_err("fio: bind: %s\n", strerror(errno)); | |
b94cba47 | 797 | close(sk); |
87aa8f19 JA |
798 | return -1; |
799 | } | |
800 | ||
801 | umask(mode); | |
802 | return sk; | |
803 | } | |
804 | ||
805 | static int fio_init_server_connection(void) | |
806 | { | |
bebe6398 | 807 | char bind_str[128]; |
87aa8f19 JA |
808 | int sk; |
809 | ||
810 | dprint(FD_NET, "starting server\n"); | |
811 | ||
812 | if (!bind_sock) | |
813 | sk = fio_init_server_ip(); | |
814 | else | |
815 | sk = fio_init_server_sock(); | |
816 | ||
817 | if (sk < 0) | |
818 | return sk; | |
819 | ||
bebe6398 JA |
820 | if (!bind_sock) |
821 | sprintf(bind_str, "%s:%u", inet_ntoa(saddr_in.sin_addr), fio_net_port); | |
822 | else | |
823 | strcpy(bind_str, bind_sock); | |
824 | ||
825 | log_info("fio: server listening on %s\n", bind_str); | |
826 | ||
89c1707c | 827 | if (listen(sk, 0) < 0) { |
81179eec JA |
828 | log_err("fio: listen: %s\n", strerror(errno)); |
829 | return -1; | |
830 | } | |
831 | ||
87aa8f19 JA |
832 | return sk; |
833 | } | |
834 | ||
bebe6398 JA |
835 | int fio_server_parse_string(const char *str, char **ptr, int *is_sock, |
836 | int *port, struct in_addr *inp) | |
837 | { | |
838 | *ptr = NULL; | |
839 | *is_sock = 0; | |
6d2cf394 | 840 | *port = fio_net_port; |
bebe6398 JA |
841 | |
842 | if (!strncmp(str, "sock:", 5)) { | |
843 | *ptr = strdup(str + 5); | |
844 | *is_sock = 1; | |
845 | } else { | |
846 | const char *host = str; | |
847 | char *portp; | |
848 | int lport = 0; | |
849 | ||
850 | /* | |
851 | * Is it ip:<ip or host>:port | |
852 | */ | |
853 | if (!strncmp(host, "ip:", 3)) | |
854 | host += 3; | |
855 | else if (host[0] == ':') { | |
856 | /* String is :port */ | |
857 | host++; | |
858 | lport = atoi(host); | |
859 | if (!lport || lport > 65535) { | |
860 | log_err("fio: bad server port %u\n", port); | |
861 | return 1; | |
862 | } | |
863 | /* no hostname given, we are done */ | |
864 | *port = lport; | |
865 | return 0; | |
866 | } | |
867 | ||
868 | /* | |
869 | * If no port seen yet, check if there's a last ':' at the end | |
870 | */ | |
871 | if (!lport) { | |
872 | portp = strchr(host, ':'); | |
873 | if (portp) { | |
874 | *portp = '\0'; | |
875 | portp++; | |
876 | lport = atoi(portp); | |
877 | if (!lport || lport > 65535) { | |
878 | log_err("fio: bad server port %u\n", port); | |
879 | return 1; | |
880 | } | |
881 | } | |
882 | } | |
883 | ||
884 | if (lport) | |
885 | *port = lport; | |
886 | ||
887 | *ptr = strdup(host); | |
888 | ||
889 | if (inet_aton(host, inp) != 1) { | |
890 | struct hostent *hent; | |
891 | ||
892 | hent = gethostbyname(host); | |
893 | if (!hent) { | |
bebe6398 JA |
894 | free(*ptr); |
895 | *ptr = NULL; | |
896 | return 1; | |
897 | } | |
898 | ||
899 | memcpy(inp, hent->h_addr, 4); | |
900 | } | |
901 | } | |
902 | ||
903 | if (*port == 0) | |
904 | *port = fio_net_port; | |
905 | ||
906 | return 0; | |
907 | } | |
908 | ||
87aa8f19 JA |
909 | /* |
910 | * Server arg should be one of: | |
911 | * | |
912 | * sock:/path/to/socket | |
913 | * ip:1.2.3.4 | |
914 | * 1.2.3.4 | |
915 | * | |
916 | * Where sock uses unix domain sockets, and ip binds the server to | |
917 | * a specific interface. If no arguments are given to the server, it | |
918 | * uses IP and binds to 0.0.0.0. | |
919 | * | |
920 | */ | |
921 | static int fio_handle_server_arg(void) | |
922 | { | |
6d2cf394 | 923 | int port = fio_net_port; |
a7de0a11 | 924 | int is_sock, ret = 0; |
bebe6398 | 925 | |
87aa8f19 JA |
926 | saddr_in.sin_addr.s_addr = htonl(INADDR_ANY); |
927 | ||
928 | if (!fio_server_arg) | |
a7de0a11 | 929 | goto out; |
87aa8f19 | 930 | |
4e5b8fb8 | 931 | ret = fio_server_parse_string(fio_server_arg, &bind_sock, &is_sock, |
6d2cf394 | 932 | &port, &saddr_in.sin_addr); |
4e5b8fb8 JA |
933 | |
934 | if (!is_sock && bind_sock) { | |
935 | free(bind_sock); | |
936 | bind_sock = NULL; | |
937 | } | |
938 | ||
a7de0a11 | 939 | out: |
6d2cf394 JA |
940 | fio_net_port = port; |
941 | saddr_in.sin_port = htons(port); | |
4e5b8fb8 | 942 | return ret; |
87aa8f19 JA |
943 | } |
944 | ||
945 | static int fio_server(void) | |
946 | { | |
947 | int sk, ret; | |
948 | ||
949 | dprint(FD_NET, "starting server\n"); | |
950 | ||
951 | if (fio_handle_server_arg()) | |
952 | return -1; | |
953 | ||
954 | sk = fio_init_server_connection(); | |
955 | if (sk < 0) | |
956 | return -1; | |
81179eec JA |
957 | |
958 | ret = accept_loop(sk); | |
87aa8f19 | 959 | |
81179eec | 960 | close(sk); |
87aa8f19 JA |
961 | |
962 | if (fio_server_arg) { | |
963 | free(fio_server_arg); | |
964 | fio_server_arg = NULL; | |
965 | } | |
bebe6398 JA |
966 | if (bind_sock) |
967 | free(bind_sock); | |
87aa8f19 | 968 | |
81179eec JA |
969 | return ret; |
970 | } | |
971 | ||
7b821684 | 972 | void fio_server_got_signal(int signal) |
9abea48b | 973 | { |
7b821684 JA |
974 | if (signal == SIGPIPE) |
975 | server_fd = -1; | |
976 | else { | |
977 | log_info("\nfio: terminating on signal %d\n", signal); | |
978 | exit_backend = 1; | |
979 | } | |
9abea48b JA |
980 | } |
981 | ||
13755d94 JA |
982 | static int check_existing_pidfile(const char *pidfile) |
983 | { | |
984 | struct stat sb; | |
985 | char buf[16]; | |
986 | pid_t pid; | |
987 | FILE *f; | |
988 | ||
989 | if (stat(pidfile, &sb)) | |
990 | return 0; | |
991 | ||
992 | f = fopen(pidfile, "r"); | |
993 | if (!f) | |
994 | return 0; | |
995 | ||
bfc3b179 | 996 | if (fread(buf, sb.st_size, 1, f) <= 0) { |
13755d94 JA |
997 | fclose(f); |
998 | return 1; | |
999 | } | |
1000 | fclose(f); | |
1001 | ||
1002 | pid = atoi(buf); | |
1003 | if (kill(pid, SIGCONT) < 0) | |
ea5aa1be | 1004 | return errno != ESRCH; |
13755d94 JA |
1005 | |
1006 | return 1; | |
1007 | } | |
1008 | ||
1009 | static int write_pid(pid_t pid, const char *pidfile) | |
402668f3 JA |
1010 | { |
1011 | FILE *fpid; | |
1012 | ||
1013 | fpid = fopen(pidfile, "w"); | |
1014 | if (!fpid) { | |
1015 | log_err("fio: failed opening pid file %s\n", pidfile); | |
13755d94 | 1016 | return 1; |
402668f3 JA |
1017 | } |
1018 | ||
1019 | fprintf(fpid, "%u\n", (unsigned int) pid); | |
13755d94 JA |
1020 | fclose(fpid); |
1021 | return 0; | |
402668f3 JA |
1022 | } |
1023 | ||
1024 | /* | |
1025 | * If pidfile is specified, background us. | |
1026 | */ | |
1027 | int fio_start_server(char *pidfile) | |
e46d8091 JA |
1028 | { |
1029 | pid_t pid; | |
402668f3 | 1030 | int ret; |
e46d8091 | 1031 | |
402668f3 | 1032 | if (!pidfile) |
e46d8091 JA |
1033 | return fio_server(); |
1034 | ||
13755d94 JA |
1035 | if (check_existing_pidfile(pidfile)) { |
1036 | log_err("fio: pidfile %s exists and server appears alive\n", | |
1037 | pidfile); | |
1038 | return -1; | |
1039 | } | |
1040 | ||
e46d8091 JA |
1041 | pid = fork(); |
1042 | if (pid < 0) { | |
13755d94 | 1043 | log_err("fio: failed server fork: %s", strerror(errno)); |
402668f3 | 1044 | free(pidfile); |
c28e8e8c | 1045 | return -1; |
402668f3 | 1046 | } else if (pid) { |
13755d94 JA |
1047 | int ret = write_pid(pid, pidfile); |
1048 | ||
1049 | exit(ret); | |
402668f3 | 1050 | } |
e46d8091 JA |
1051 | |
1052 | setsid(); | |
13755d94 JA |
1053 | openlog("fio", LOG_NDELAY|LOG_NOWAIT|LOG_PID, LOG_USER); |
1054 | log_syslog = 1; | |
e46d8091 JA |
1055 | close(STDIN_FILENO); |
1056 | close(STDOUT_FILENO); | |
1057 | close(STDERR_FILENO); | |
1058 | f_out = NULL; | |
1059 | f_err = NULL; | |
402668f3 JA |
1060 | |
1061 | ret = fio_server(); | |
1062 | ||
1063 | closelog(); | |
1064 | unlink(pidfile); | |
1065 | free(pidfile); | |
1066 | return ret; | |
e46d8091 | 1067 | } |
87aa8f19 | 1068 | |
bebe6398 | 1069 | void fio_server_set_arg(const char *arg) |
87aa8f19 JA |
1070 | { |
1071 | fio_server_arg = strdup(arg); | |
1072 | } |