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" |
c7c6cb4c | 23 | #include "lib/ieee754.h" |
89cf1480 JA |
24 | |
25 | #include "fio_version.h" | |
50d16976 | 26 | |
5adc2447 | 27 | int fio_net_port = FIO_NET_PORT; |
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; | |
811826be | 35 | static struct sockaddr_in6 saddr_in6; |
01be038e | 36 | static int first_cmd_check; |
811826be | 37 | static int use_ipv6; |
37db14fe | 38 | |
89c1707c JA |
39 | static const char *fio_server_ops[FIO_NET_CMD_NR] = { |
40 | "", | |
41 | "QUIT", | |
42 | "EXIT", | |
43 | "JOB", | |
44 | "JOBLINE", | |
45 | "TEXT", | |
46 | "TS", | |
47 | "GS", | |
48 | "SEND_ETA", | |
49 | "ETA", | |
50 | "PROBE", | |
51 | "START", | |
d09a64a0 JA |
52 | "STOP", |
53 | "DISK_UTIL", | |
01be038e | 54 | "RUN", |
89c1707c JA |
55 | }; |
56 | ||
57 | const char *fio_server_op(unsigned int op) | |
58 | { | |
59 | static char buf[32]; | |
60 | ||
61 | if (op < FIO_NET_CMD_NR) | |
62 | return fio_server_ops[op]; | |
63 | ||
64 | sprintf(buf, "UNKNOWN/%d", op); | |
65 | return buf; | |
66 | } | |
67 | ||
132159a5 JA |
68 | int fio_send_data(int sk, const void *p, unsigned int len) |
69 | { | |
794d69ca JA |
70 | assert(len <= sizeof(struct fio_net_cmd) + FIO_SERVER_MAX_PDU); |
71 | ||
132159a5 JA |
72 | do { |
73 | int ret = send(sk, p, len, 0); | |
74 | ||
75 | if (ret > 0) { | |
76 | len -= ret; | |
77 | if (!len) | |
78 | break; | |
79 | p += ret; | |
80 | continue; | |
81 | } else if (!ret) | |
82 | break; | |
83 | else if (errno == EAGAIN || errno == EINTR) | |
84 | continue; | |
7b821684 JA |
85 | else |
86 | break; | |
132159a5 JA |
87 | } while (!exit_backend); |
88 | ||
89 | if (!len) | |
90 | return 0; | |
91 | ||
92 | return 1; | |
93 | } | |
94 | ||
95 | int fio_recv_data(int sk, void *p, unsigned int len) | |
96 | { | |
97 | do { | |
98 | int ret = recv(sk, p, len, MSG_WAITALL); | |
99 | ||
100 | if (ret > 0) { | |
101 | len -= ret; | |
102 | if (!len) | |
103 | break; | |
104 | p += ret; | |
105 | continue; | |
106 | } else if (!ret) | |
107 | break; | |
108 | else if (errno == EAGAIN || errno == EINTR) | |
109 | continue; | |
7b821684 JA |
110 | else |
111 | break; | |
132159a5 JA |
112 | } while (!exit_backend); |
113 | ||
114 | if (!len) | |
115 | return 0; | |
116 | ||
117 | return -1; | |
118 | } | |
119 | ||
120 | static int verify_convert_cmd(struct fio_net_cmd *cmd) | |
121 | { | |
fcee5ff6 | 122 | uint16_t crc; |
132159a5 | 123 | |
fcee5ff6 JA |
124 | cmd->cmd_crc16 = le16_to_cpu(cmd->cmd_crc16); |
125 | cmd->pdu_crc16 = le16_to_cpu(cmd->pdu_crc16); | |
132159a5 | 126 | |
25dfa848 | 127 | crc = fio_crc16(cmd, FIO_NET_CMD_CRC_SZ); |
fcee5ff6 | 128 | if (crc != cmd->cmd_crc16) { |
132159a5 | 129 | log_err("fio: server bad crc on command (got %x, wanted %x)\n", |
fcee5ff6 | 130 | cmd->cmd_crc16, crc); |
132159a5 JA |
131 | return 1; |
132 | } | |
133 | ||
134 | cmd->version = le16_to_cpu(cmd->version); | |
135 | cmd->opcode = le16_to_cpu(cmd->opcode); | |
136 | cmd->flags = le32_to_cpu(cmd->flags); | |
af9c9fb3 | 137 | cmd->tag = le64_to_cpu(cmd->tag); |
132159a5 JA |
138 | cmd->pdu_len = le32_to_cpu(cmd->pdu_len); |
139 | ||
140 | switch (cmd->version) { | |
fa2ea806 | 141 | case FIO_SERVER_VER: |
132159a5 JA |
142 | break; |
143 | default: | |
144 | log_err("fio: bad server cmd version %d\n", cmd->version); | |
145 | return 1; | |
146 | } | |
147 | ||
148 | if (cmd->pdu_len > FIO_SERVER_MAX_PDU) { | |
149 | log_err("fio: command payload too large: %u\n", cmd->pdu_len); | |
150 | return 1; | |
151 | } | |
152 | ||
153 | return 0; | |
154 | } | |
155 | ||
a64e88da JA |
156 | /* |
157 | * Read (and defragment, if necessary) incoming commands | |
158 | */ | |
e951bdc4 | 159 | struct fio_net_cmd *fio_net_recv_cmd(int sk) |
132159a5 | 160 | { |
a64e88da JA |
161 | struct fio_net_cmd cmd, *cmdret = NULL; |
162 | size_t cmd_size = 0, pdu_offset = 0; | |
fcee5ff6 | 163 | uint16_t crc; |
a64e88da JA |
164 | int ret, first = 1; |
165 | void *pdu = NULL; | |
132159a5 | 166 | |
a64e88da JA |
167 | do { |
168 | ret = fio_recv_data(sk, &cmd, sizeof(cmd)); | |
169 | if (ret) | |
170 | break; | |
132159a5 | 171 | |
a64e88da JA |
172 | /* We have a command, verify it and swap if need be */ |
173 | ret = verify_convert_cmd(&cmd); | |
174 | if (ret) | |
175 | break; | |
132159a5 | 176 | |
0b8f30a5 JA |
177 | if (first) { |
178 | /* if this is text, add room for \0 at the end */ | |
179 | cmd_size = sizeof(cmd) + cmd.pdu_len + 1; | |
180 | assert(!cmdret); | |
181 | } else | |
a64e88da | 182 | cmd_size += cmd.pdu_len; |
132159a5 | 183 | |
a64e88da | 184 | cmdret = realloc(cmdret, cmd_size); |
132159a5 | 185 | |
a64e88da JA |
186 | if (first) |
187 | memcpy(cmdret, &cmd, sizeof(cmd)); | |
67f15dcf JA |
188 | else if (cmdret->opcode != cmd.opcode) { |
189 | log_err("fio: fragment opcode mismatch (%d != %d)\n", | |
190 | cmdret->opcode, cmd.opcode); | |
191 | ret = 1; | |
192 | break; | |
193 | } | |
a64e88da JA |
194 | |
195 | if (!cmd.pdu_len) | |
196 | break; | |
197 | ||
198 | /* There's payload, get it */ | |
199 | pdu = (void *) cmdret->payload + pdu_offset; | |
200 | ret = fio_recv_data(sk, pdu, cmd.pdu_len); | |
201 | if (ret) | |
202 | break; | |
203 | ||
204 | /* Verify payload crc */ | |
25dfa848 | 205 | crc = fio_crc16(pdu, cmd.pdu_len); |
a64e88da JA |
206 | if (crc != cmd.pdu_crc16) { |
207 | log_err("fio: server bad crc on payload "); | |
208 | log_err("(got %x, wanted %x)\n", cmd.pdu_crc16, crc); | |
209 | ret = 1; | |
210 | break; | |
211 | } | |
212 | ||
213 | pdu_offset += cmd.pdu_len; | |
817f06bb JA |
214 | if (!first) |
215 | cmdret->pdu_len += cmd.pdu_len; | |
a64e88da JA |
216 | first = 0; |
217 | } while (cmd.flags & FIO_NET_CMD_F_MORE); | |
132159a5 | 218 | |
a64e88da JA |
219 | if (ret) { |
220 | free(cmdret); | |
221 | cmdret = NULL; | |
0b8f30a5 JA |
222 | } else if (cmdret) { |
223 | /* zero-terminate text input */ | |
224 | if (cmdret->pdu_len && (cmdret->opcode == FIO_NET_CMD_TEXT || | |
225 | cmdret->opcode == FIO_NET_CMD_JOB)) { | |
226 | char *buf = (char *) cmdret->payload; | |
227 | ||
228 | buf[cmdret->pdu_len ] = '\0'; | |
229 | } | |
230 | /* frag flag is internal */ | |
a64e88da | 231 | cmdret->flags &= ~FIO_NET_CMD_F_MORE; |
0b8f30a5 | 232 | } |
a64e88da JA |
233 | |
234 | return cmdret; | |
132159a5 JA |
235 | } |
236 | ||
237 | void fio_net_cmd_crc(struct fio_net_cmd *cmd) | |
238 | { | |
239 | uint32_t pdu_len; | |
240 | ||
25dfa848 | 241 | cmd->cmd_crc16 = __cpu_to_le16(fio_crc16(cmd, FIO_NET_CMD_CRC_SZ)); |
132159a5 JA |
242 | |
243 | pdu_len = le32_to_cpu(cmd->pdu_len); | |
244 | if (pdu_len) | |
25dfa848 | 245 | cmd->pdu_crc16 = __cpu_to_le16(fio_crc16(cmd->payload, pdu_len)); |
132159a5 JA |
246 | } |
247 | ||
af9c9fb3 JA |
248 | int fio_net_send_cmd(int fd, uint16_t opcode, const void *buf, off_t size, |
249 | uint64_t tag) | |
794d69ca | 250 | { |
7f868316 JA |
251 | struct fio_net_cmd *cmd = NULL; |
252 | size_t this_len, cur_len = 0; | |
794d69ca JA |
253 | int ret; |
254 | ||
255 | do { | |
256 | this_len = size; | |
257 | if (this_len > FIO_SERVER_MAX_PDU) | |
258 | this_len = FIO_SERVER_MAX_PDU; | |
259 | ||
7f868316 JA |
260 | if (!cmd || cur_len < sizeof(*cmd) + this_len) { |
261 | if (cmd) | |
262 | free(cmd); | |
263 | ||
264 | cur_len = sizeof(*cmd) + this_len; | |
265 | cmd = malloc(cur_len); | |
266 | } | |
794d69ca | 267 | |
af9c9fb3 | 268 | fio_init_net_cmd(cmd, opcode, buf, this_len, tag); |
794d69ca JA |
269 | |
270 | if (this_len < size) | |
ddcc0b69 | 271 | cmd->flags = __cpu_to_le32(FIO_NET_CMD_F_MORE); |
794d69ca JA |
272 | |
273 | fio_net_cmd_crc(cmd); | |
274 | ||
275 | ret = fio_send_data(fd, cmd, sizeof(*cmd) + this_len); | |
794d69ca JA |
276 | size -= this_len; |
277 | buf += this_len; | |
278 | } while (!ret && size); | |
279 | ||
7f868316 JA |
280 | if (cmd) |
281 | free(cmd); | |
282 | ||
794d69ca JA |
283 | return ret; |
284 | } | |
285 | ||
89c1707c | 286 | static int fio_net_send_simple_stack_cmd(int sk, uint16_t opcode, uint64_t tag) |
132159a5 | 287 | { |
178cde9f | 288 | struct fio_net_cmd cmd; |
132159a5 | 289 | |
af9c9fb3 | 290 | fio_init_net_cmd(&cmd, opcode, NULL, 0, tag); |
132159a5 JA |
291 | fio_net_cmd_crc(&cmd); |
292 | ||
293 | return fio_send_data(sk, &cmd, sizeof(cmd)); | |
294 | } | |
295 | ||
89c1707c JA |
296 | /* |
297 | * If 'list' is non-NULL, then allocate and store the sent command for | |
298 | * later verification. | |
299 | */ | |
300 | int fio_net_send_simple_cmd(int sk, uint16_t opcode, uint64_t tag, | |
301 | struct flist_head *list) | |
302 | { | |
303 | struct fio_net_int_cmd *cmd; | |
304 | int ret; | |
305 | ||
306 | if (!list) | |
307 | return fio_net_send_simple_stack_cmd(sk, opcode, tag); | |
308 | ||
309 | cmd = malloc(sizeof(*cmd)); | |
310 | ||
df380934 | 311 | fio_init_net_cmd(&cmd->cmd, opcode, NULL, 0, (uintptr_t) cmd); |
89c1707c JA |
312 | fio_net_cmd_crc(&cmd->cmd); |
313 | ||
314 | INIT_FLIST_HEAD(&cmd->list); | |
315 | gettimeofday(&cmd->tv, NULL); | |
316 | cmd->saved_tag = tag; | |
317 | ||
318 | ret = fio_send_data(sk, &cmd->cmd, sizeof(cmd->cmd)); | |
319 | if (ret) { | |
320 | free(cmd); | |
321 | return ret; | |
322 | } | |
323 | ||
324 | flist_add_tail(&cmd->list, list); | |
325 | return 0; | |
326 | } | |
327 | ||
9abea48b | 328 | static int fio_server_send_quit_cmd(void) |
437377e1 | 329 | { |
46c48f1f | 330 | dprint(FD_NET, "server: sending quit\n"); |
89c1707c | 331 | return fio_net_send_simple_cmd(server_fd, FIO_NET_CMD_QUIT, 0, NULL); |
437377e1 JA |
332 | } |
333 | ||
0b8f30a5 | 334 | static int handle_job_cmd(struct fio_net_cmd *cmd) |
132159a5 | 335 | { |
0b8f30a5 | 336 | char *buf = (char *) cmd->payload; |
11e950bd JA |
337 | struct cmd_start_pdu spdu; |
338 | struct cmd_end_pdu epdu; | |
a64e88da | 339 | int ret; |
132159a5 | 340 | |
e6d1c668 JA |
341 | if (parse_jobs_ini(buf, 1, 0)) { |
342 | fio_server_send_quit_cmd(); | |
81179eec | 343 | return -1; |
e6d1c668 | 344 | } |
81179eec | 345 | |
11e950bd JA |
346 | spdu.jobs = cpu_to_le32(thread_number); |
347 | fio_net_send_cmd(server_fd, FIO_NET_CMD_START, &spdu, sizeof(spdu), 0); | |
81179eec | 348 | |
2e1df07d | 349 | ret = fio_backend(); |
11e950bd JA |
350 | |
351 | epdu.error = ret; | |
352 | fio_net_send_cmd(server_fd, FIO_NET_CMD_STOP, &epdu, sizeof(epdu), 0); | |
353 | ||
9abea48b | 354 | fio_server_send_quit_cmd(); |
81179eec JA |
355 | reset_fio_state(); |
356 | return ret; | |
357 | } | |
358 | ||
359 | static int handle_jobline_cmd(struct fio_net_cmd *cmd) | |
360 | { | |
fa2ea806 JA |
361 | void *pdu = cmd->payload; |
362 | struct cmd_single_line_pdu *cslp; | |
363 | struct cmd_line_pdu *clp; | |
364 | unsigned long offset; | |
365 | char **argv; | |
81179eec JA |
366 | int ret, i; |
367 | ||
fa2ea806 JA |
368 | clp = pdu; |
369 | clp->lines = le16_to_cpu(clp->lines); | |
370 | argv = malloc(clp->lines * sizeof(char *)); | |
371 | offset = sizeof(*clp); | |
81179eec | 372 | |
fa2ea806 | 373 | dprint(FD_NET, "server: %d command line args\n", clp->lines); |
39e8e016 | 374 | |
fa2ea806 JA |
375 | for (i = 0; i < clp->lines; i++) { |
376 | cslp = pdu + offset; | |
377 | argv[i] = (char *) cslp->text; | |
378 | ||
379 | offset += sizeof(*cslp) + le16_to_cpu(cslp->len); | |
39e8e016 JA |
380 | dprint(FD_NET, "server: %d: %s\n", i, argv[i]); |
381 | } | |
81179eec | 382 | |
fa2ea806 | 383 | if (parse_cmd_line(clp->lines, argv)) { |
e6d1c668 | 384 | fio_server_send_quit_cmd(); |
fa2ea806 | 385 | free(argv); |
81179eec | 386 | return -1; |
e6d1c668 | 387 | } |
81179eec | 388 | |
fa2ea806 JA |
389 | free(argv); |
390 | ||
89c1707c | 391 | fio_net_send_simple_cmd(server_fd, FIO_NET_CMD_START, 0, NULL); |
81179eec | 392 | |
2e1df07d | 393 | ret = fio_backend(); |
9abea48b | 394 | fio_server_send_quit_cmd(); |
794d69ca | 395 | reset_fio_state(); |
132159a5 JA |
396 | return ret; |
397 | } | |
398 | ||
c28e8e8c JA |
399 | static int handle_probe_cmd(struct fio_net_cmd *cmd) |
400 | { | |
401 | struct cmd_probe_pdu probe; | |
402 | ||
89c1707c JA |
403 | dprint(FD_NET, "server: sending probe reply\n"); |
404 | ||
c28e8e8c JA |
405 | memset(&probe, 0, sizeof(probe)); |
406 | gethostname((char *) probe.hostname, sizeof(probe.hostname)); | |
6eb24791 JA |
407 | #ifdef FIO_BIG_ENDIAN |
408 | probe.bigendian = 1; | |
409 | #endif | |
81179eec JA |
410 | probe.fio_major = FIO_MAJOR; |
411 | probe.fio_minor = FIO_MINOR; | |
412 | probe.fio_patch = FIO_PATCH; | |
c28e8e8c | 413 | |
cca84643 JA |
414 | probe.os = FIO_OS; |
415 | probe.arch = FIO_ARCH; | |
416 | ||
38fdef22 JA |
417 | probe.bpp = sizeof(void *); |
418 | ||
89c1707c | 419 | return fio_net_send_cmd(server_fd, FIO_NET_CMD_PROBE, &probe, sizeof(probe), cmd->tag); |
af9c9fb3 JA |
420 | } |
421 | ||
422 | static int handle_send_eta_cmd(struct fio_net_cmd *cmd) | |
423 | { | |
424 | struct jobs_eta *je; | |
425 | size_t size; | |
af9c9fb3 JA |
426 | int i; |
427 | ||
b814fb26 JA |
428 | if (!thread_number) |
429 | return 0; | |
430 | ||
431 | size = sizeof(*je) + thread_number * sizeof(char) + 1; | |
7f868316 JA |
432 | je = malloc(size); |
433 | memset(je, 0, size); | |
af9c9fb3 JA |
434 | |
435 | if (!calc_thread_status(je, 1)) { | |
436 | free(je); | |
437 | return 0; | |
438 | } | |
439 | ||
440 | dprint(FD_NET, "server sending status\n"); | |
441 | ||
442 | je->nr_running = cpu_to_le32(je->nr_running); | |
443 | je->nr_ramp = cpu_to_le32(je->nr_ramp); | |
444 | je->nr_pending = cpu_to_le32(je->nr_pending); | |
445 | je->files_open = cpu_to_le32(je->files_open); | |
af9c9fb3 JA |
446 | |
447 | for (i = 0; i < 2; i++) { | |
3e47bd25 JA |
448 | je->m_rate[i] = cpu_to_le32(je->m_rate[i]); |
449 | je->t_rate[i] = cpu_to_le32(je->t_rate[i]); | |
450 | je->m_iops[i] = cpu_to_le32(je->m_iops[i]); | |
451 | je->t_iops[i] = cpu_to_le32(je->t_iops[i]); | |
af9c9fb3 JA |
452 | je->rate[i] = cpu_to_le32(je->rate[i]); |
453 | je->iops[i] = cpu_to_le32(je->iops[i]); | |
454 | } | |
455 | ||
456 | je->elapsed_sec = cpu_to_le32(je->nr_running); | |
457 | je->eta_sec = cpu_to_le64(je->eta_sec); | |
458 | ||
7f868316 | 459 | fio_net_send_cmd(server_fd, FIO_NET_CMD_ETA, je, size, cmd->tag); |
af9c9fb3 JA |
460 | free(je); |
461 | return 0; | |
c28e8e8c JA |
462 | } |
463 | ||
132159a5 JA |
464 | static int handle_command(struct fio_net_cmd *cmd) |
465 | { | |
466 | int ret; | |
467 | ||
89c1707c JA |
468 | dprint(FD_NET, "server: got op [%s], pdu=%u, tag=%lx\n", |
469 | fio_server_op(cmd->opcode), cmd->pdu_len, cmd->tag); | |
46c48f1f | 470 | |
132159a5 JA |
471 | switch (cmd->opcode) { |
472 | case FIO_NET_CMD_QUIT: | |
cc0df00a | 473 | fio_terminate_threads(TERMINATE_ALL); |
c28e8e8c | 474 | return -1; |
d7959186 | 475 | case FIO_NET_CMD_EXIT: |
132159a5 | 476 | exit_backend = 1; |
c28e8e8c | 477 | return -1; |
132159a5 | 478 | case FIO_NET_CMD_JOB: |
0b8f30a5 | 479 | ret = handle_job_cmd(cmd); |
132159a5 | 480 | break; |
81179eec JA |
481 | case FIO_NET_CMD_JOBLINE: |
482 | ret = handle_jobline_cmd(cmd); | |
483 | break; | |
c28e8e8c JA |
484 | case FIO_NET_CMD_PROBE: |
485 | ret = handle_probe_cmd(cmd); | |
486 | break; | |
af9c9fb3 JA |
487 | case FIO_NET_CMD_SEND_ETA: |
488 | ret = handle_send_eta_cmd(cmd); | |
489 | break; | |
132159a5 | 490 | default: |
89c1707c | 491 | log_err("fio: unknown opcode: %s\n",fio_server_op(cmd->opcode)); |
132159a5 JA |
492 | ret = 1; |
493 | } | |
494 | ||
495 | return ret; | |
496 | } | |
497 | ||
70e0c316 | 498 | static int handle_connection(int sk, int block) |
132159a5 JA |
499 | { |
500 | struct fio_net_cmd *cmd = NULL; | |
501 | int ret = 0; | |
502 | ||
503 | /* read forever */ | |
504 | while (!exit_backend) { | |
e951bdc4 JA |
505 | struct pollfd pfd = { |
506 | .fd = sk, | |
507 | .events = POLLIN, | |
508 | }; | |
509 | ||
510 | ret = 0; | |
511 | do { | |
512 | ret = poll(&pfd, 1, 100); | |
513 | if (ret < 0) { | |
514 | if (errno == EINTR) | |
515 | break; | |
516 | log_err("fio: poll: %s\n", strerror(errno)); | |
517 | break; | |
19c65179 JA |
518 | } else if (!ret) { |
519 | if (!block) | |
520 | return 0; | |
e951bdc4 | 521 | continue; |
19c65179 | 522 | } |
e951bdc4 JA |
523 | |
524 | if (pfd.revents & POLLIN) | |
525 | break; | |
526 | if (pfd.revents & (POLLERR|POLLHUP)) { | |
527 | ret = 1; | |
528 | break; | |
529 | } | |
19c65179 | 530 | } while (!exit_backend); |
e951bdc4 JA |
531 | |
532 | if (ret < 0) | |
533 | break; | |
534 | ||
535 | cmd = fio_net_recv_cmd(sk); | |
132159a5 | 536 | if (!cmd) { |
c28e8e8c | 537 | ret = -1; |
132159a5 JA |
538 | break; |
539 | } | |
540 | ||
132159a5 JA |
541 | ret = handle_command(cmd); |
542 | if (ret) | |
543 | break; | |
544 | ||
545 | free(cmd); | |
c77a99e7 | 546 | cmd = NULL; |
132159a5 JA |
547 | } |
548 | ||
549 | if (cmd) | |
550 | free(cmd); | |
551 | ||
552 | return ret; | |
553 | } | |
554 | ||
cc0df00a JA |
555 | void fio_server_idle_loop(void) |
556 | { | |
3ec62ec4 | 557 | if (!first_cmd_check) { |
01be038e | 558 | fio_net_send_simple_cmd(server_fd, FIO_NET_CMD_RUN, 0, NULL); |
3ec62ec4 JA |
559 | first_cmd_check = 1; |
560 | } | |
cc0df00a | 561 | if (server_fd != -1) |
70e0c316 | 562 | handle_connection(server_fd, 0); |
cc0df00a JA |
563 | } |
564 | ||
50d16976 JA |
565 | static int accept_loop(int listen_sk) |
566 | { | |
bb447a27 | 567 | struct sockaddr_in addr; |
5ba13ea6 | 568 | fio_socklen_t len = sizeof(addr); |
009b1be4 | 569 | struct pollfd pfd; |
132159a5 | 570 | int ret, sk, flags, exitval = 0; |
50d16976 | 571 | |
60efd14e JA |
572 | dprint(FD_NET, "server enter accept loop\n"); |
573 | ||
009b1be4 JA |
574 | flags = fcntl(listen_sk, F_GETFL); |
575 | flags |= O_NONBLOCK; | |
576 | fcntl(listen_sk, F_SETFL, flags); | |
50d16976 | 577 | again: |
009b1be4 JA |
578 | pfd.fd = listen_sk; |
579 | pfd.events = POLLIN; | |
580 | do { | |
581 | ret = poll(&pfd, 1, 100); | |
582 | if (ret < 0) { | |
583 | if (errno == EINTR) | |
584 | break; | |
fcee5ff6 | 585 | log_err("fio: poll: %s\n", strerror(errno)); |
009b1be4 JA |
586 | goto out; |
587 | } else if (!ret) | |
588 | continue; | |
589 | ||
590 | if (pfd.revents & POLLIN) | |
591 | break; | |
592 | } while (!exit_backend); | |
593 | ||
594 | if (exit_backend) | |
595 | goto out; | |
596 | ||
6b976bfc | 597 | sk = accept(listen_sk, (struct sockaddr *) &addr, &len); |
50d16976 | 598 | if (sk < 0) { |
690e09ae | 599 | log_err("fio: accept: %s\n", strerror(errno)); |
50d16976 JA |
600 | return -1; |
601 | } | |
602 | ||
bb447a27 | 603 | dprint(FD_NET, "server: connect from %s\n", inet_ntoa(addr.sin_addr)); |
46c48f1f | 604 | |
37db14fe JA |
605 | server_fd = sk; |
606 | ||
70e0c316 | 607 | exitval = handle_connection(sk, 1); |
50d16976 | 608 | |
37db14fe | 609 | server_fd = -1; |
50d16976 | 610 | close(sk); |
5c341e9a | 611 | |
009b1be4 | 612 | if (!exit_backend) |
5c341e9a JA |
613 | goto again; |
614 | ||
009b1be4 | 615 | out: |
132159a5 | 616 | return exitval; |
50d16976 JA |
617 | } |
618 | ||
13755d94 | 619 | int fio_server_text_output(const char *buf, size_t len) |
37db14fe | 620 | { |
337d75a8 | 621 | if (server_fd != -1) |
af9c9fb3 | 622 | return fio_net_send_cmd(server_fd, FIO_NET_CMD_TEXT, buf, len, 0); |
337d75a8 | 623 | |
13755d94 | 624 | return log_local_buf(buf, len); |
142575e6 JA |
625 | } |
626 | ||
a64e88da JA |
627 | static void convert_io_stat(struct io_stat *dst, struct io_stat *src) |
628 | { | |
629 | dst->max_val = cpu_to_le64(src->max_val); | |
630 | dst->min_val = cpu_to_le64(src->min_val); | |
631 | dst->samples = cpu_to_le64(src->samples); | |
802ad4a8 JA |
632 | |
633 | /* | |
634 | * Encode to IEEE 754 for network transfer | |
635 | */ | |
636 | dst->mean.u.i = __cpu_to_le64(fio_double_to_uint64(src->mean.u.f)); | |
637 | dst->S.u.i = __cpu_to_le64(fio_double_to_uint64(src->S.u.f)); | |
a64e88da JA |
638 | } |
639 | ||
640 | static void convert_gs(struct group_run_stats *dst, struct group_run_stats *src) | |
641 | { | |
642 | int i; | |
643 | ||
644 | for (i = 0; i < 2; i++) { | |
645 | dst->max_run[i] = cpu_to_le64(src->max_run[i]); | |
646 | dst->min_run[i] = cpu_to_le64(src->min_run[i]); | |
647 | dst->max_bw[i] = cpu_to_le64(src->max_bw[i]); | |
648 | dst->min_bw[i] = cpu_to_le64(src->min_bw[i]); | |
649 | dst->io_kb[i] = cpu_to_le64(src->io_kb[i]); | |
650 | dst->agg[i] = cpu_to_le64(src->agg[i]); | |
651 | } | |
652 | ||
653 | dst->kb_base = cpu_to_le32(src->kb_base); | |
654 | dst->groupid = cpu_to_le32(src->groupid); | |
655 | } | |
656 | ||
657 | /* | |
658 | * Send a CMD_TS, which packs struct thread_stat and group_run_stats | |
659 | * into a single payload. | |
660 | */ | |
661 | void fio_server_send_ts(struct thread_stat *ts, struct group_run_stats *rs) | |
662 | { | |
663 | struct cmd_ts_pdu p; | |
664 | int i, j; | |
665 | ||
60efd14e JA |
666 | dprint(FD_NET, "server sending end stats\n"); |
667 | ||
317b3c8b JA |
668 | memset(&p, 0, sizeof(p)); |
669 | ||
a64e88da JA |
670 | strcpy(p.ts.name, ts->name); |
671 | strcpy(p.ts.verror, ts->verror); | |
672 | strcpy(p.ts.description, ts->description); | |
673 | ||
ddcc0b69 | 674 | p.ts.error = cpu_to_le32(ts->error); |
a64e88da | 675 | p.ts.groupid = cpu_to_le32(ts->groupid); |
ddcc0b69 | 676 | p.ts.pid = cpu_to_le32(ts->pid); |
a64e88da JA |
677 | p.ts.members = cpu_to_le32(ts->members); |
678 | ||
679 | for (i = 0; i < 2; i++) { | |
680 | convert_io_stat(&p.ts.clat_stat[i], &ts->clat_stat[i]); | |
681 | convert_io_stat(&p.ts.slat_stat[i], &ts->slat_stat[i]); | |
682 | convert_io_stat(&p.ts.lat_stat[i], &ts->lat_stat[i]); | |
683 | convert_io_stat(&p.ts.bw_stat[i], &ts->bw_stat[i]); | |
684 | } | |
685 | ||
686 | p.ts.usr_time = cpu_to_le64(ts->usr_time); | |
687 | p.ts.sys_time = cpu_to_le64(ts->sys_time); | |
688 | p.ts.ctx = cpu_to_le64(ts->ctx); | |
689 | p.ts.minf = cpu_to_le64(ts->minf); | |
690 | p.ts.majf = cpu_to_le64(ts->majf); | |
691 | p.ts.clat_percentiles = cpu_to_le64(ts->clat_percentiles); | |
802ad4a8 JA |
692 | |
693 | for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) { | |
cfc03e46 JA |
694 | fio_fp64_t *src = &ts->percentile_list[i]; |
695 | fio_fp64_t *dst = &p.ts.percentile_list[i]; | |
802ad4a8 | 696 | |
cfc03e46 | 697 | dst->u.i = __cpu_to_le64(fio_double_to_uint64(src->u.f)); |
802ad4a8 | 698 | } |
a64e88da JA |
699 | |
700 | for (i = 0; i < FIO_IO_U_MAP_NR; i++) { | |
701 | p.ts.io_u_map[i] = cpu_to_le32(ts->io_u_map[i]); | |
702 | p.ts.io_u_submit[i] = cpu_to_le32(ts->io_u_submit[i]); | |
703 | p.ts.io_u_complete[i] = cpu_to_le32(ts->io_u_complete[i]); | |
704 | } | |
705 | ||
706 | for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) { | |
707 | p.ts.io_u_lat_u[i] = cpu_to_le32(ts->io_u_lat_u[i]); | |
708 | p.ts.io_u_lat_m[i] = cpu_to_le32(ts->io_u_lat_m[i]); | |
709 | } | |
710 | ||
711 | for (i = 0; i < 2; i++) | |
712 | for (j = 0; j < FIO_IO_U_PLAT_NR; j++) | |
713 | p.ts.io_u_plat[i][j] = cpu_to_le32(ts->io_u_plat[i][j]); | |
714 | ||
715 | for (i = 0; i < 3; i++) { | |
716 | p.ts.total_io_u[i] = cpu_to_le64(ts->total_io_u[i]); | |
93eee04a | 717 | p.ts.short_io_u[i] = cpu_to_le64(ts->short_io_u[i]); |
a64e88da JA |
718 | } |
719 | ||
93eee04a | 720 | p.ts.total_submit = cpu_to_le64(ts->total_submit); |
a64e88da JA |
721 | p.ts.total_complete = cpu_to_le64(ts->total_complete); |
722 | ||
723 | for (i = 0; i < 2; i++) { | |
724 | p.ts.io_bytes[i] = cpu_to_le64(ts->io_bytes[i]); | |
725 | p.ts.runtime[i] = cpu_to_le64(ts->runtime[i]); | |
726 | } | |
727 | ||
728 | p.ts.total_run_time = cpu_to_le64(ts->total_run_time); | |
729 | p.ts.continue_on_error = cpu_to_le16(ts->continue_on_error); | |
730 | p.ts.total_err_count = cpu_to_le64(ts->total_err_count); | |
ddcc0b69 JA |
731 | p.ts.first_error = cpu_to_le32(ts->first_error); |
732 | p.ts.kb_base = cpu_to_le32(ts->kb_base); | |
a64e88da JA |
733 | |
734 | convert_gs(&p.rs, rs); | |
735 | ||
af9c9fb3 | 736 | fio_net_send_cmd(server_fd, FIO_NET_CMD_TS, &p, sizeof(p), 0); |
a64e88da JA |
737 | } |
738 | ||
739 | void fio_server_send_gs(struct group_run_stats *rs) | |
740 | { | |
741 | struct group_run_stats gs; | |
742 | ||
60efd14e JA |
743 | dprint(FD_NET, "server sending group run stats\n"); |
744 | ||
a64e88da | 745 | convert_gs(&gs, rs); |
af9c9fb3 | 746 | fio_net_send_cmd(server_fd, FIO_NET_CMD_GS, &gs, sizeof(gs), 0); |
cf451d1e JA |
747 | } |
748 | ||
d09a64a0 JA |
749 | static void convert_agg(struct disk_util_agg *dst, struct disk_util_agg *src) |
750 | { | |
751 | int i; | |
752 | ||
753 | for (i = 0; i < 2; i++) { | |
754 | dst->ios[i] = cpu_to_le32(src->ios[i]); | |
755 | dst->merges[i] = cpu_to_le32(src->merges[i]); | |
756 | dst->sectors[i] = cpu_to_le64(src->sectors[i]); | |
757 | dst->ticks[i] = cpu_to_le32(src->ticks[i]); | |
758 | } | |
759 | ||
760 | dst->io_ticks = cpu_to_le32(src->io_ticks); | |
761 | dst->time_in_queue = cpu_to_le32(src->time_in_queue); | |
762 | dst->slavecount = cpu_to_le32(src->slavecount); | |
763 | dst->max_util.u.i = __cpu_to_le64(fio_double_to_uint64(src->max_util.u.f)); | |
764 | } | |
765 | ||
766 | static void convert_dus(struct disk_util_stat *dst, struct disk_util_stat *src) | |
767 | { | |
768 | int i; | |
769 | ||
770 | strcpy((char *) dst->name, (char *) src->name); | |
771 | ||
772 | for (i = 0; i < 2; i++) { | |
773 | dst->ios[i] = cpu_to_le32(src->ios[i]); | |
774 | dst->merges[i] = cpu_to_le32(src->merges[i]); | |
775 | dst->sectors[i] = cpu_to_le64(src->sectors[i]); | |
776 | dst->ticks[i] = cpu_to_le32(src->ticks[i]); | |
777 | } | |
778 | ||
779 | dst->io_ticks = cpu_to_le32(src->io_ticks); | |
780 | dst->time_in_queue = cpu_to_le32(src->time_in_queue); | |
781 | dst->msec = cpu_to_le64(src->msec); | |
782 | } | |
783 | ||
784 | void fio_server_send_du(void) | |
785 | { | |
786 | struct disk_util *du; | |
787 | struct flist_head *entry; | |
788 | struct cmd_du_pdu pdu; | |
789 | ||
790 | dprint(FD_NET, "server: sending disk_util %d\n", !flist_empty(&disk_list)); | |
791 | ||
0766d92e JA |
792 | memset(&pdu, 0, sizeof(pdu)); |
793 | ||
d09a64a0 JA |
794 | flist_for_each(entry, &disk_list) { |
795 | du = flist_entry(entry, struct disk_util, list); | |
796 | ||
797 | convert_dus(&pdu.dus, &du->dus); | |
798 | convert_agg(&pdu.agg, &du->agg); | |
799 | ||
800 | fio_net_send_cmd(server_fd, FIO_NET_CMD_DU, &pdu, sizeof(pdu), 0); | |
801 | } | |
802 | } | |
803 | ||
142575e6 JA |
804 | int fio_server_log(const char *format, ...) |
805 | { | |
806 | char buffer[1024]; | |
807 | va_list args; | |
82fa6b21 | 808 | size_t len; |
142575e6 | 809 | |
60efd14e JA |
810 | dprint(FD_NET, "server log\n"); |
811 | ||
142575e6 | 812 | va_start(args, format); |
82fa6b21 | 813 | len = vsnprintf(buffer, sizeof(buffer), format, args); |
142575e6 JA |
814 | va_end(args); |
815 | ||
82fa6b21 | 816 | return fio_server_text_output(buffer, len); |
37db14fe | 817 | } |
e46d8091 | 818 | |
87aa8f19 | 819 | static int fio_init_server_ip(void) |
81179eec | 820 | { |
811826be JA |
821 | struct sockaddr *addr; |
822 | fio_socklen_t socklen; | |
87aa8f19 | 823 | int sk, opt; |
81179eec | 824 | |
811826be JA |
825 | if (use_ipv6) |
826 | sk = socket(AF_INET6, SOCK_STREAM, 0); | |
827 | else | |
828 | sk = socket(AF_INET, SOCK_STREAM, 0); | |
829 | ||
81179eec JA |
830 | if (sk < 0) { |
831 | log_err("fio: socket: %s\n", strerror(errno)); | |
832 | return -1; | |
833 | } | |
834 | ||
835 | opt = 1; | |
836 | if (setsockopt(sk, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt)) < 0) { | |
837 | log_err("fio: setsockopt: %s\n", strerror(errno)); | |
b94cba47 | 838 | close(sk); |
81179eec JA |
839 | return -1; |
840 | } | |
841 | #ifdef SO_REUSEPORT | |
6eb24791 | 842 | if (setsockopt(sk, SOL_SOCKET, SO_REUSEPORT, &opt, sizeof(opt)) < 0) { |
81179eec | 843 | log_err("fio: setsockopt: %s\n", strerror(errno)); |
b94cba47 | 844 | close(sk); |
81179eec JA |
845 | return -1; |
846 | } | |
847 | #endif | |
848 | ||
811826be JA |
849 | if (use_ipv6) { |
850 | addr = (struct sockaddr *) &saddr_in6; | |
851 | socklen = sizeof(saddr_in6); | |
852 | saddr_in6.sin6_family = AF_INET6; | |
853 | } else { | |
854 | addr = (struct sockaddr *) &saddr_in; | |
855 | socklen = sizeof(saddr_in); | |
856 | saddr_in.sin_family = AF_INET; | |
857 | } | |
81179eec | 858 | |
811826be | 859 | if (bind(sk, addr, socklen) < 0) { |
81179eec | 860 | log_err("fio: bind: %s\n", strerror(errno)); |
b94cba47 | 861 | close(sk); |
81179eec JA |
862 | return -1; |
863 | } | |
864 | ||
87aa8f19 JA |
865 | return sk; |
866 | } | |
867 | ||
868 | static int fio_init_server_sock(void) | |
869 | { | |
870 | struct sockaddr_un addr; | |
871 | fio_socklen_t len; | |
872 | mode_t mode; | |
873 | int sk; | |
874 | ||
875 | sk = socket(AF_UNIX, SOCK_STREAM, 0); | |
876 | if (sk < 0) { | |
877 | log_err("fio: socket: %s\n", strerror(errno)); | |
878 | return -1; | |
879 | } | |
880 | ||
881 | mode = umask(000); | |
882 | ||
883 | memset(&addr, 0, sizeof(addr)); | |
884 | addr.sun_family = AF_UNIX; | |
885 | strcpy(addr.sun_path, bind_sock); | |
886 | unlink(bind_sock); | |
887 | ||
888 | len = sizeof(addr.sun_family) + strlen(bind_sock) + 1; | |
889 | ||
890 | if (bind(sk, (struct sockaddr *) &addr, len) < 0) { | |
891 | log_err("fio: bind: %s\n", strerror(errno)); | |
b94cba47 | 892 | close(sk); |
87aa8f19 JA |
893 | return -1; |
894 | } | |
895 | ||
896 | umask(mode); | |
897 | return sk; | |
898 | } | |
899 | ||
900 | static int fio_init_server_connection(void) | |
901 | { | |
bebe6398 | 902 | char bind_str[128]; |
87aa8f19 JA |
903 | int sk; |
904 | ||
905 | dprint(FD_NET, "starting server\n"); | |
906 | ||
907 | if (!bind_sock) | |
908 | sk = fio_init_server_ip(); | |
909 | else | |
910 | sk = fio_init_server_sock(); | |
911 | ||
912 | if (sk < 0) | |
913 | return sk; | |
914 | ||
811826be JA |
915 | if (!bind_sock) { |
916 | char *p, port[16]; | |
917 | const void *src; | |
918 | int af; | |
919 | ||
920 | if (use_ipv6) { | |
921 | af = AF_INET6; | |
922 | src = &saddr_in6.sin6_addr; | |
923 | } else { | |
924 | af = AF_INET; | |
925 | src = &saddr_in.sin_addr; | |
926 | } | |
927 | ||
928 | p = (char *) inet_ntop(af, src, bind_str, sizeof(bind_str)); | |
929 | ||
930 | sprintf(port, ",%u", fio_net_port); | |
931 | if (p) | |
932 | strcat(p, port); | |
933 | else | |
934 | strcpy(bind_str, port); | |
935 | } else | |
bebe6398 JA |
936 | strcpy(bind_str, bind_sock); |
937 | ||
938 | log_info("fio: server listening on %s\n", bind_str); | |
939 | ||
89c1707c | 940 | if (listen(sk, 0) < 0) { |
81179eec JA |
941 | log_err("fio: listen: %s\n", strerror(errno)); |
942 | return -1; | |
943 | } | |
944 | ||
87aa8f19 JA |
945 | return sk; |
946 | } | |
947 | ||
3ec62ec4 JA |
948 | int fio_server_parse_host(const char *host, int *ipv6, struct in_addr *inp, |
949 | struct in6_addr *inp6) | |
950 | ||
951 | { | |
952 | int ret = 0; | |
953 | ||
954 | if (*ipv6) | |
955 | ret = inet_pton(AF_INET6, host, inp6); | |
956 | else | |
957 | ret = inet_pton(AF_INET, host, inp); | |
958 | ||
959 | if (ret != 1) { | |
960 | struct hostent *hent; | |
961 | ||
962 | hent = gethostbyname(host); | |
963 | if (!hent) { | |
964 | log_err("fio: failed to resolve <%s>\n", host); | |
965 | return 0; | |
966 | } | |
967 | ||
968 | if (*ipv6) { | |
969 | if (hent->h_addrtype != AF_INET6) { | |
970 | log_info("fio: falling back to IPv4\n"); | |
971 | *ipv6 = 0; | |
972 | } else | |
973 | memcpy(inp6, hent->h_addr_list[0], 16); | |
974 | } | |
975 | if (!*ipv6) { | |
976 | if (hent->h_addrtype != AF_INET) { | |
977 | log_err("fio: lookup type mismatch\n"); | |
978 | return 0; | |
979 | } | |
980 | memcpy(inp, hent->h_addr_list[0], 4); | |
981 | } | |
982 | ret = 1; | |
983 | } | |
984 | ||
985 | return !(ret == 1); | |
986 | } | |
987 | ||
660a2bfb JA |
988 | /* |
989 | * Parse a host/ip/port string. Reads from 'str'. | |
990 | * | |
991 | * Outputs: | |
992 | * | |
993 | * For IPv4: | |
994 | * *ptr is the host, *port is the port, inp is the destination. | |
995 | * For IPv6: | |
996 | * *ptr is the host, *port is the port, inp6 is the dest, and *ipv6 is 1. | |
997 | * For local domain sockets: | |
998 | * *ptr is the filename, *is_sock is 1. | |
999 | */ | |
bebe6398 | 1000 | int fio_server_parse_string(const char *str, char **ptr, int *is_sock, |
811826be JA |
1001 | int *port, struct in_addr *inp, |
1002 | struct in6_addr *inp6, int *ipv6) | |
bebe6398 | 1003 | { |
76867621 JA |
1004 | const char *host = str; |
1005 | char *portp; | |
3ec62ec4 | 1006 | int lport = 0; |
76867621 | 1007 | |
bebe6398 JA |
1008 | *ptr = NULL; |
1009 | *is_sock = 0; | |
6d2cf394 | 1010 | *port = fio_net_port; |
811826be | 1011 | *ipv6 = 0; |
bebe6398 JA |
1012 | |
1013 | if (!strncmp(str, "sock:", 5)) { | |
1014 | *ptr = strdup(str + 5); | |
1015 | *is_sock = 1; | |
76867621 JA |
1016 | |
1017 | return 0; | |
1018 | } | |
1019 | ||
1020 | /* | |
1021 | * Is it ip:<ip or host>:port | |
1022 | */ | |
1023 | if (!strncmp(host, "ip:", 3)) | |
1024 | host += 3; | |
1025 | else if (!strncmp(host, "ip4:", 4)) | |
1026 | host += 4; | |
1027 | else if (!strncmp(host, "ip6:", 4)) { | |
1028 | host += 4; | |
1029 | *ipv6 = 1; | |
1030 | } else if (host[0] == ':') { | |
1031 | /* String is :port */ | |
1032 | host++; | |
1033 | lport = atoi(host); | |
1034 | if (!lport || lport > 65535) { | |
1035 | log_err("fio: bad server port %u\n", port); | |
1036 | return 1; | |
1037 | } | |
1038 | /* no hostname given, we are done */ | |
1039 | *port = lport; | |
1040 | return 0; | |
1041 | } | |
1042 | ||
1043 | /* | |
1044 | * If no port seen yet, check if there's a last ':' at the end | |
1045 | */ | |
1046 | if (!lport) { | |
1047 | portp = strchr(host, ','); | |
1048 | if (portp) { | |
1049 | *portp = '\0'; | |
1050 | portp++; | |
1051 | lport = atoi(portp); | |
bebe6398 JA |
1052 | if (!lport || lport > 65535) { |
1053 | log_err("fio: bad server port %u\n", port); | |
1054 | return 1; | |
1055 | } | |
bebe6398 | 1056 | } |
76867621 | 1057 | } |
bebe6398 | 1058 | |
76867621 JA |
1059 | if (lport) |
1060 | *port = lport; | |
bebe6398 | 1061 | |
76867621 JA |
1062 | if (!strlen(host)) |
1063 | return 0; | |
bebe6398 | 1064 | |
76867621 | 1065 | *ptr = strdup(host); |
811826be | 1066 | |
3ec62ec4 JA |
1067 | if (fio_server_parse_host(*ptr, ipv6, inp, inp6)) { |
1068 | free(*ptr); | |
1069 | *ptr = NULL; | |
1070 | return 1; | |
bebe6398 JA |
1071 | } |
1072 | ||
1073 | if (*port == 0) | |
1074 | *port = fio_net_port; | |
1075 | ||
1076 | return 0; | |
1077 | } | |
1078 | ||
87aa8f19 JA |
1079 | /* |
1080 | * Server arg should be one of: | |
1081 | * | |
1082 | * sock:/path/to/socket | |
1083 | * ip:1.2.3.4 | |
1084 | * 1.2.3.4 | |
1085 | * | |
1086 | * Where sock uses unix domain sockets, and ip binds the server to | |
1087 | * a specific interface. If no arguments are given to the server, it | |
1088 | * uses IP and binds to 0.0.0.0. | |
1089 | * | |
1090 | */ | |
1091 | static int fio_handle_server_arg(void) | |
1092 | { | |
6d2cf394 | 1093 | int port = fio_net_port; |
a7de0a11 | 1094 | int is_sock, ret = 0; |
bebe6398 | 1095 | |
87aa8f19 JA |
1096 | saddr_in.sin_addr.s_addr = htonl(INADDR_ANY); |
1097 | ||
1098 | if (!fio_server_arg) | |
a7de0a11 | 1099 | goto out; |
87aa8f19 | 1100 | |
4e5b8fb8 | 1101 | ret = fio_server_parse_string(fio_server_arg, &bind_sock, &is_sock, |
811826be JA |
1102 | &port, &saddr_in.sin_addr, |
1103 | &saddr_in6.sin6_addr, &use_ipv6); | |
4e5b8fb8 JA |
1104 | |
1105 | if (!is_sock && bind_sock) { | |
1106 | free(bind_sock); | |
1107 | bind_sock = NULL; | |
1108 | } | |
1109 | ||
a7de0a11 | 1110 | out: |
6d2cf394 JA |
1111 | fio_net_port = port; |
1112 | saddr_in.sin_port = htons(port); | |
811826be | 1113 | saddr_in6.sin6_port = htons(port); |
4e5b8fb8 | 1114 | return ret; |
87aa8f19 JA |
1115 | } |
1116 | ||
1117 | static int fio_server(void) | |
1118 | { | |
1119 | int sk, ret; | |
1120 | ||
1121 | dprint(FD_NET, "starting server\n"); | |
1122 | ||
1123 | if (fio_handle_server_arg()) | |
1124 | return -1; | |
1125 | ||
1126 | sk = fio_init_server_connection(); | |
1127 | if (sk < 0) | |
1128 | return -1; | |
81179eec JA |
1129 | |
1130 | ret = accept_loop(sk); | |
87aa8f19 | 1131 | |
81179eec | 1132 | close(sk); |
87aa8f19 JA |
1133 | |
1134 | if (fio_server_arg) { | |
1135 | free(fio_server_arg); | |
1136 | fio_server_arg = NULL; | |
1137 | } | |
bebe6398 JA |
1138 | if (bind_sock) |
1139 | free(bind_sock); | |
87aa8f19 | 1140 | |
81179eec JA |
1141 | return ret; |
1142 | } | |
1143 | ||
7b821684 | 1144 | void fio_server_got_signal(int signal) |
9abea48b | 1145 | { |
7b821684 JA |
1146 | if (signal == SIGPIPE) |
1147 | server_fd = -1; | |
1148 | else { | |
1149 | log_info("\nfio: terminating on signal %d\n", signal); | |
1150 | exit_backend = 1; | |
1151 | } | |
9abea48b JA |
1152 | } |
1153 | ||
13755d94 JA |
1154 | static int check_existing_pidfile(const char *pidfile) |
1155 | { | |
1156 | struct stat sb; | |
1157 | char buf[16]; | |
1158 | pid_t pid; | |
1159 | FILE *f; | |
1160 | ||
1161 | if (stat(pidfile, &sb)) | |
1162 | return 0; | |
1163 | ||
1164 | f = fopen(pidfile, "r"); | |
1165 | if (!f) | |
1166 | return 0; | |
1167 | ||
bfc3b179 | 1168 | if (fread(buf, sb.st_size, 1, f) <= 0) { |
13755d94 JA |
1169 | fclose(f); |
1170 | return 1; | |
1171 | } | |
1172 | fclose(f); | |
1173 | ||
1174 | pid = atoi(buf); | |
1175 | if (kill(pid, SIGCONT) < 0) | |
ea5aa1be | 1176 | return errno != ESRCH; |
13755d94 JA |
1177 | |
1178 | return 1; | |
1179 | } | |
1180 | ||
1181 | static int write_pid(pid_t pid, const char *pidfile) | |
402668f3 JA |
1182 | { |
1183 | FILE *fpid; | |
1184 | ||
1185 | fpid = fopen(pidfile, "w"); | |
1186 | if (!fpid) { | |
1187 | log_err("fio: failed opening pid file %s\n", pidfile); | |
13755d94 | 1188 | return 1; |
402668f3 JA |
1189 | } |
1190 | ||
1191 | fprintf(fpid, "%u\n", (unsigned int) pid); | |
13755d94 JA |
1192 | fclose(fpid); |
1193 | return 0; | |
402668f3 JA |
1194 | } |
1195 | ||
1196 | /* | |
1197 | * If pidfile is specified, background us. | |
1198 | */ | |
1199 | int fio_start_server(char *pidfile) | |
e46d8091 JA |
1200 | { |
1201 | pid_t pid; | |
402668f3 | 1202 | int ret; |
e46d8091 | 1203 | |
93bcfd20 BC |
1204 | #if defined(WIN32) |
1205 | WSADATA wsd; | |
1206 | WSAStartup(MAKEWORD(2,2), &wsd); | |
1207 | #endif | |
1208 | ||
402668f3 | 1209 | if (!pidfile) |
e46d8091 JA |
1210 | return fio_server(); |
1211 | ||
13755d94 JA |
1212 | if (check_existing_pidfile(pidfile)) { |
1213 | log_err("fio: pidfile %s exists and server appears alive\n", | |
1214 | pidfile); | |
1215 | return -1; | |
1216 | } | |
1217 | ||
e46d8091 JA |
1218 | pid = fork(); |
1219 | if (pid < 0) { | |
13755d94 | 1220 | log_err("fio: failed server fork: %s", strerror(errno)); |
402668f3 | 1221 | free(pidfile); |
c28e8e8c | 1222 | return -1; |
402668f3 | 1223 | } else if (pid) { |
13755d94 JA |
1224 | int ret = write_pid(pid, pidfile); |
1225 | ||
1226 | exit(ret); | |
402668f3 | 1227 | } |
e46d8091 JA |
1228 | |
1229 | setsid(); | |
13755d94 JA |
1230 | openlog("fio", LOG_NDELAY|LOG_NOWAIT|LOG_PID, LOG_USER); |
1231 | log_syslog = 1; | |
e46d8091 JA |
1232 | close(STDIN_FILENO); |
1233 | close(STDOUT_FILENO); | |
1234 | close(STDERR_FILENO); | |
1235 | f_out = NULL; | |
1236 | f_err = NULL; | |
402668f3 JA |
1237 | |
1238 | ret = fio_server(); | |
1239 | ||
1240 | closelog(); | |
1241 | unlink(pidfile); | |
1242 | free(pidfile); | |
1243 | return ret; | |
e46d8091 | 1244 | } |
87aa8f19 | 1245 | |
bebe6398 | 1246 | void fio_server_set_arg(const char *arg) |
87aa8f19 JA |
1247 | { |
1248 | fio_server_arg = strdup(arg); | |
1249 | } |