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", |
807f9971 | 55 | "ADD_JOB", |
89c1707c JA |
56 | }; |
57 | ||
58 | const char *fio_server_op(unsigned int op) | |
59 | { | |
60 | static char buf[32]; | |
61 | ||
62 | if (op < FIO_NET_CMD_NR) | |
63 | return fio_server_ops[op]; | |
64 | ||
65 | sprintf(buf, "UNKNOWN/%d", op); | |
66 | return buf; | |
67 | } | |
68 | ||
132159a5 JA |
69 | int fio_send_data(int sk, const void *p, unsigned int len) |
70 | { | |
794d69ca JA |
71 | assert(len <= sizeof(struct fio_net_cmd) + FIO_SERVER_MAX_PDU); |
72 | ||
132159a5 JA |
73 | do { |
74 | int ret = send(sk, p, len, 0); | |
75 | ||
76 | if (ret > 0) { | |
77 | len -= ret; | |
78 | if (!len) | |
79 | break; | |
80 | p += ret; | |
81 | continue; | |
82 | } else if (!ret) | |
83 | break; | |
84 | else if (errno == EAGAIN || errno == EINTR) | |
85 | continue; | |
7b821684 JA |
86 | else |
87 | break; | |
132159a5 JA |
88 | } while (!exit_backend); |
89 | ||
90 | if (!len) | |
91 | return 0; | |
92 | ||
93 | return 1; | |
94 | } | |
95 | ||
96 | int fio_recv_data(int sk, void *p, unsigned int len) | |
97 | { | |
98 | do { | |
99 | int ret = recv(sk, p, len, MSG_WAITALL); | |
100 | ||
101 | if (ret > 0) { | |
102 | len -= ret; | |
103 | if (!len) | |
104 | break; | |
105 | p += ret; | |
106 | continue; | |
107 | } else if (!ret) | |
108 | break; | |
109 | else if (errno == EAGAIN || errno == EINTR) | |
110 | continue; | |
7b821684 JA |
111 | else |
112 | break; | |
132159a5 JA |
113 | } while (!exit_backend); |
114 | ||
115 | if (!len) | |
116 | return 0; | |
117 | ||
118 | return -1; | |
119 | } | |
120 | ||
121 | static int verify_convert_cmd(struct fio_net_cmd *cmd) | |
122 | { | |
fcee5ff6 | 123 | uint16_t crc; |
132159a5 | 124 | |
fcee5ff6 JA |
125 | cmd->cmd_crc16 = le16_to_cpu(cmd->cmd_crc16); |
126 | cmd->pdu_crc16 = le16_to_cpu(cmd->pdu_crc16); | |
132159a5 | 127 | |
25dfa848 | 128 | crc = fio_crc16(cmd, FIO_NET_CMD_CRC_SZ); |
fcee5ff6 | 129 | if (crc != cmd->cmd_crc16) { |
132159a5 | 130 | log_err("fio: server bad crc on command (got %x, wanted %x)\n", |
fcee5ff6 | 131 | cmd->cmd_crc16, crc); |
132159a5 JA |
132 | return 1; |
133 | } | |
134 | ||
135 | cmd->version = le16_to_cpu(cmd->version); | |
136 | cmd->opcode = le16_to_cpu(cmd->opcode); | |
137 | cmd->flags = le32_to_cpu(cmd->flags); | |
af9c9fb3 | 138 | cmd->tag = le64_to_cpu(cmd->tag); |
132159a5 JA |
139 | cmd->pdu_len = le32_to_cpu(cmd->pdu_len); |
140 | ||
141 | switch (cmd->version) { | |
fa2ea806 | 142 | case FIO_SERVER_VER: |
132159a5 JA |
143 | break; |
144 | default: | |
145 | log_err("fio: bad server cmd version %d\n", cmd->version); | |
146 | return 1; | |
147 | } | |
148 | ||
149 | if (cmd->pdu_len > FIO_SERVER_MAX_PDU) { | |
150 | log_err("fio: command payload too large: %u\n", cmd->pdu_len); | |
151 | return 1; | |
152 | } | |
153 | ||
154 | return 0; | |
155 | } | |
156 | ||
a64e88da JA |
157 | /* |
158 | * Read (and defragment, if necessary) incoming commands | |
159 | */ | |
e951bdc4 | 160 | struct fio_net_cmd *fio_net_recv_cmd(int sk) |
132159a5 | 161 | { |
a64e88da JA |
162 | struct fio_net_cmd cmd, *cmdret = NULL; |
163 | size_t cmd_size = 0, pdu_offset = 0; | |
fcee5ff6 | 164 | uint16_t crc; |
a64e88da JA |
165 | int ret, first = 1; |
166 | void *pdu = NULL; | |
132159a5 | 167 | |
a64e88da JA |
168 | do { |
169 | ret = fio_recv_data(sk, &cmd, sizeof(cmd)); | |
170 | if (ret) | |
171 | break; | |
132159a5 | 172 | |
a64e88da JA |
173 | /* We have a command, verify it and swap if need be */ |
174 | ret = verify_convert_cmd(&cmd); | |
175 | if (ret) | |
176 | break; | |
132159a5 | 177 | |
0b8f30a5 JA |
178 | if (first) { |
179 | /* if this is text, add room for \0 at the end */ | |
180 | cmd_size = sizeof(cmd) + cmd.pdu_len + 1; | |
181 | assert(!cmdret); | |
182 | } else | |
a64e88da | 183 | cmd_size += cmd.pdu_len; |
132159a5 | 184 | |
a64e88da | 185 | cmdret = realloc(cmdret, cmd_size); |
132159a5 | 186 | |
a64e88da JA |
187 | if (first) |
188 | memcpy(cmdret, &cmd, sizeof(cmd)); | |
67f15dcf JA |
189 | else if (cmdret->opcode != cmd.opcode) { |
190 | log_err("fio: fragment opcode mismatch (%d != %d)\n", | |
191 | cmdret->opcode, cmd.opcode); | |
192 | ret = 1; | |
193 | break; | |
194 | } | |
a64e88da JA |
195 | |
196 | if (!cmd.pdu_len) | |
197 | break; | |
198 | ||
199 | /* There's payload, get it */ | |
200 | pdu = (void *) cmdret->payload + pdu_offset; | |
201 | ret = fio_recv_data(sk, pdu, cmd.pdu_len); | |
202 | if (ret) | |
203 | break; | |
204 | ||
205 | /* Verify payload crc */ | |
25dfa848 | 206 | crc = fio_crc16(pdu, cmd.pdu_len); |
a64e88da JA |
207 | if (crc != cmd.pdu_crc16) { |
208 | log_err("fio: server bad crc on payload "); | |
209 | log_err("(got %x, wanted %x)\n", cmd.pdu_crc16, crc); | |
210 | ret = 1; | |
211 | break; | |
212 | } | |
213 | ||
214 | pdu_offset += cmd.pdu_len; | |
817f06bb JA |
215 | if (!first) |
216 | cmdret->pdu_len += cmd.pdu_len; | |
a64e88da JA |
217 | first = 0; |
218 | } while (cmd.flags & FIO_NET_CMD_F_MORE); | |
132159a5 | 219 | |
a64e88da JA |
220 | if (ret) { |
221 | free(cmdret); | |
222 | cmdret = NULL; | |
0b8f30a5 JA |
223 | } else if (cmdret) { |
224 | /* zero-terminate text input */ | |
225 | if (cmdret->pdu_len && (cmdret->opcode == FIO_NET_CMD_TEXT || | |
226 | cmdret->opcode == FIO_NET_CMD_JOB)) { | |
227 | char *buf = (char *) cmdret->payload; | |
228 | ||
229 | buf[cmdret->pdu_len ] = '\0'; | |
230 | } | |
231 | /* frag flag is internal */ | |
a64e88da | 232 | cmdret->flags &= ~FIO_NET_CMD_F_MORE; |
0b8f30a5 | 233 | } |
a64e88da JA |
234 | |
235 | return cmdret; | |
132159a5 JA |
236 | } |
237 | ||
238 | void fio_net_cmd_crc(struct fio_net_cmd *cmd) | |
239 | { | |
240 | uint32_t pdu_len; | |
241 | ||
25dfa848 | 242 | cmd->cmd_crc16 = __cpu_to_le16(fio_crc16(cmd, FIO_NET_CMD_CRC_SZ)); |
132159a5 JA |
243 | |
244 | pdu_len = le32_to_cpu(cmd->pdu_len); | |
245 | if (pdu_len) | |
25dfa848 | 246 | cmd->pdu_crc16 = __cpu_to_le16(fio_crc16(cmd->payload, pdu_len)); |
132159a5 JA |
247 | } |
248 | ||
af9c9fb3 JA |
249 | int fio_net_send_cmd(int fd, uint16_t opcode, const void *buf, off_t size, |
250 | uint64_t tag) | |
794d69ca | 251 | { |
7f868316 JA |
252 | struct fio_net_cmd *cmd = NULL; |
253 | size_t this_len, cur_len = 0; | |
794d69ca JA |
254 | int ret; |
255 | ||
256 | do { | |
257 | this_len = size; | |
258 | if (this_len > FIO_SERVER_MAX_PDU) | |
259 | this_len = FIO_SERVER_MAX_PDU; | |
260 | ||
7f868316 JA |
261 | if (!cmd || cur_len < sizeof(*cmd) + this_len) { |
262 | if (cmd) | |
263 | free(cmd); | |
264 | ||
265 | cur_len = sizeof(*cmd) + this_len; | |
266 | cmd = malloc(cur_len); | |
267 | } | |
794d69ca | 268 | |
af9c9fb3 | 269 | fio_init_net_cmd(cmd, opcode, buf, this_len, tag); |
794d69ca JA |
270 | |
271 | if (this_len < size) | |
ddcc0b69 | 272 | cmd->flags = __cpu_to_le32(FIO_NET_CMD_F_MORE); |
794d69ca JA |
273 | |
274 | fio_net_cmd_crc(cmd); | |
275 | ||
276 | ret = fio_send_data(fd, cmd, sizeof(*cmd) + this_len); | |
794d69ca JA |
277 | size -= this_len; |
278 | buf += this_len; | |
279 | } while (!ret && size); | |
280 | ||
7f868316 JA |
281 | if (cmd) |
282 | free(cmd); | |
283 | ||
794d69ca JA |
284 | return ret; |
285 | } | |
286 | ||
89c1707c | 287 | static int fio_net_send_simple_stack_cmd(int sk, uint16_t opcode, uint64_t tag) |
132159a5 | 288 | { |
178cde9f | 289 | struct fio_net_cmd cmd; |
132159a5 | 290 | |
af9c9fb3 | 291 | fio_init_net_cmd(&cmd, opcode, NULL, 0, tag); |
132159a5 JA |
292 | fio_net_cmd_crc(&cmd); |
293 | ||
294 | return fio_send_data(sk, &cmd, sizeof(cmd)); | |
295 | } | |
296 | ||
89c1707c JA |
297 | /* |
298 | * If 'list' is non-NULL, then allocate and store the sent command for | |
299 | * later verification. | |
300 | */ | |
301 | int fio_net_send_simple_cmd(int sk, uint16_t opcode, uint64_t tag, | |
302 | struct flist_head *list) | |
303 | { | |
304 | struct fio_net_int_cmd *cmd; | |
305 | int ret; | |
306 | ||
307 | if (!list) | |
308 | return fio_net_send_simple_stack_cmd(sk, opcode, tag); | |
309 | ||
310 | cmd = malloc(sizeof(*cmd)); | |
311 | ||
df380934 | 312 | fio_init_net_cmd(&cmd->cmd, opcode, NULL, 0, (uintptr_t) cmd); |
89c1707c JA |
313 | fio_net_cmd_crc(&cmd->cmd); |
314 | ||
315 | INIT_FLIST_HEAD(&cmd->list); | |
316 | gettimeofday(&cmd->tv, NULL); | |
317 | cmd->saved_tag = tag; | |
318 | ||
319 | ret = fio_send_data(sk, &cmd->cmd, sizeof(cmd->cmd)); | |
320 | if (ret) { | |
321 | free(cmd); | |
322 | return ret; | |
323 | } | |
324 | ||
325 | flist_add_tail(&cmd->list, list); | |
326 | return 0; | |
327 | } | |
328 | ||
9abea48b | 329 | static int fio_server_send_quit_cmd(void) |
437377e1 | 330 | { |
46c48f1f | 331 | dprint(FD_NET, "server: sending quit\n"); |
89c1707c | 332 | return fio_net_send_simple_cmd(server_fd, FIO_NET_CMD_QUIT, 0, NULL); |
437377e1 JA |
333 | } |
334 | ||
0b8f30a5 | 335 | static int handle_job_cmd(struct fio_net_cmd *cmd) |
132159a5 | 336 | { |
0b8f30a5 | 337 | char *buf = (char *) cmd->payload; |
11e950bd JA |
338 | struct cmd_start_pdu spdu; |
339 | struct cmd_end_pdu epdu; | |
a64e88da | 340 | int ret; |
132159a5 | 341 | |
e6d1c668 JA |
342 | if (parse_jobs_ini(buf, 1, 0)) { |
343 | fio_server_send_quit_cmd(); | |
81179eec | 344 | return -1; |
e6d1c668 | 345 | } |
81179eec | 346 | |
11e950bd JA |
347 | spdu.jobs = cpu_to_le32(thread_number); |
348 | fio_net_send_cmd(server_fd, FIO_NET_CMD_START, &spdu, sizeof(spdu), 0); | |
81179eec | 349 | |
2e1df07d | 350 | ret = fio_backend(); |
11e950bd JA |
351 | |
352 | epdu.error = ret; | |
353 | fio_net_send_cmd(server_fd, FIO_NET_CMD_STOP, &epdu, sizeof(epdu), 0); | |
354 | ||
9abea48b | 355 | fio_server_send_quit_cmd(); |
81179eec JA |
356 | reset_fio_state(); |
357 | return ret; | |
358 | } | |
359 | ||
360 | static int handle_jobline_cmd(struct fio_net_cmd *cmd) | |
361 | { | |
fa2ea806 JA |
362 | void *pdu = cmd->payload; |
363 | struct cmd_single_line_pdu *cslp; | |
364 | struct cmd_line_pdu *clp; | |
365 | unsigned long offset; | |
366 | char **argv; | |
81179eec JA |
367 | int ret, i; |
368 | ||
fa2ea806 JA |
369 | clp = pdu; |
370 | clp->lines = le16_to_cpu(clp->lines); | |
371 | argv = malloc(clp->lines * sizeof(char *)); | |
372 | offset = sizeof(*clp); | |
81179eec | 373 | |
fa2ea806 | 374 | dprint(FD_NET, "server: %d command line args\n", clp->lines); |
39e8e016 | 375 | |
fa2ea806 JA |
376 | for (i = 0; i < clp->lines; i++) { |
377 | cslp = pdu + offset; | |
378 | argv[i] = (char *) cslp->text; | |
379 | ||
380 | offset += sizeof(*cslp) + le16_to_cpu(cslp->len); | |
39e8e016 JA |
381 | dprint(FD_NET, "server: %d: %s\n", i, argv[i]); |
382 | } | |
81179eec | 383 | |
fa2ea806 | 384 | if (parse_cmd_line(clp->lines, argv)) { |
e6d1c668 | 385 | fio_server_send_quit_cmd(); |
fa2ea806 | 386 | free(argv); |
81179eec | 387 | return -1; |
e6d1c668 | 388 | } |
81179eec | 389 | |
fa2ea806 JA |
390 | free(argv); |
391 | ||
89c1707c | 392 | fio_net_send_simple_cmd(server_fd, FIO_NET_CMD_START, 0, NULL); |
81179eec | 393 | |
2e1df07d | 394 | ret = fio_backend(); |
9abea48b | 395 | fio_server_send_quit_cmd(); |
794d69ca | 396 | reset_fio_state(); |
132159a5 JA |
397 | return ret; |
398 | } | |
399 | ||
c28e8e8c JA |
400 | static int handle_probe_cmd(struct fio_net_cmd *cmd) |
401 | { | |
402 | struct cmd_probe_pdu probe; | |
403 | ||
89c1707c JA |
404 | dprint(FD_NET, "server: sending probe reply\n"); |
405 | ||
c28e8e8c JA |
406 | memset(&probe, 0, sizeof(probe)); |
407 | gethostname((char *) probe.hostname, sizeof(probe.hostname)); | |
6eb24791 JA |
408 | #ifdef FIO_BIG_ENDIAN |
409 | probe.bigendian = 1; | |
410 | #endif | |
81179eec JA |
411 | probe.fio_major = FIO_MAJOR; |
412 | probe.fio_minor = FIO_MINOR; | |
413 | probe.fio_patch = FIO_PATCH; | |
c28e8e8c | 414 | |
cca84643 JA |
415 | probe.os = FIO_OS; |
416 | probe.arch = FIO_ARCH; | |
417 | ||
38fdef22 JA |
418 | probe.bpp = sizeof(void *); |
419 | ||
89c1707c | 420 | return fio_net_send_cmd(server_fd, FIO_NET_CMD_PROBE, &probe, sizeof(probe), cmd->tag); |
af9c9fb3 JA |
421 | } |
422 | ||
423 | static int handle_send_eta_cmd(struct fio_net_cmd *cmd) | |
424 | { | |
425 | struct jobs_eta *je; | |
426 | size_t size; | |
af9c9fb3 JA |
427 | int i; |
428 | ||
b814fb26 JA |
429 | if (!thread_number) |
430 | return 0; | |
431 | ||
432 | size = sizeof(*je) + thread_number * sizeof(char) + 1; | |
7f868316 JA |
433 | je = malloc(size); |
434 | memset(je, 0, size); | |
af9c9fb3 JA |
435 | |
436 | if (!calc_thread_status(je, 1)) { | |
437 | free(je); | |
438 | return 0; | |
439 | } | |
440 | ||
441 | dprint(FD_NET, "server sending status\n"); | |
442 | ||
443 | je->nr_running = cpu_to_le32(je->nr_running); | |
444 | je->nr_ramp = cpu_to_le32(je->nr_ramp); | |
445 | je->nr_pending = cpu_to_le32(je->nr_pending); | |
446 | je->files_open = cpu_to_le32(je->files_open); | |
af9c9fb3 JA |
447 | |
448 | for (i = 0; i < 2; i++) { | |
3e47bd25 JA |
449 | je->m_rate[i] = cpu_to_le32(je->m_rate[i]); |
450 | je->t_rate[i] = cpu_to_le32(je->t_rate[i]); | |
451 | je->m_iops[i] = cpu_to_le32(je->m_iops[i]); | |
452 | je->t_iops[i] = cpu_to_le32(je->t_iops[i]); | |
af9c9fb3 JA |
453 | je->rate[i] = cpu_to_le32(je->rate[i]); |
454 | je->iops[i] = cpu_to_le32(je->iops[i]); | |
455 | } | |
456 | ||
457 | je->elapsed_sec = cpu_to_le32(je->nr_running); | |
458 | je->eta_sec = cpu_to_le64(je->eta_sec); | |
459 | ||
7f868316 | 460 | fio_net_send_cmd(server_fd, FIO_NET_CMD_ETA, je, size, cmd->tag); |
af9c9fb3 JA |
461 | free(je); |
462 | return 0; | |
c28e8e8c JA |
463 | } |
464 | ||
132159a5 JA |
465 | static int handle_command(struct fio_net_cmd *cmd) |
466 | { | |
467 | int ret; | |
468 | ||
89c1707c JA |
469 | dprint(FD_NET, "server: got op [%s], pdu=%u, tag=%lx\n", |
470 | fio_server_op(cmd->opcode), cmd->pdu_len, cmd->tag); | |
46c48f1f | 471 | |
132159a5 JA |
472 | switch (cmd->opcode) { |
473 | case FIO_NET_CMD_QUIT: | |
cc0df00a | 474 | fio_terminate_threads(TERMINATE_ALL); |
c28e8e8c | 475 | return -1; |
d7959186 | 476 | case FIO_NET_CMD_EXIT: |
132159a5 | 477 | exit_backend = 1; |
c28e8e8c | 478 | return -1; |
132159a5 | 479 | case FIO_NET_CMD_JOB: |
0b8f30a5 | 480 | ret = handle_job_cmd(cmd); |
132159a5 | 481 | break; |
81179eec JA |
482 | case FIO_NET_CMD_JOBLINE: |
483 | ret = handle_jobline_cmd(cmd); | |
484 | break; | |
c28e8e8c JA |
485 | case FIO_NET_CMD_PROBE: |
486 | ret = handle_probe_cmd(cmd); | |
487 | break; | |
af9c9fb3 JA |
488 | case FIO_NET_CMD_SEND_ETA: |
489 | ret = handle_send_eta_cmd(cmd); | |
490 | break; | |
132159a5 | 491 | default: |
89c1707c | 492 | log_err("fio: unknown opcode: %s\n",fio_server_op(cmd->opcode)); |
132159a5 JA |
493 | ret = 1; |
494 | } | |
495 | ||
496 | return ret; | |
497 | } | |
498 | ||
70e0c316 | 499 | static int handle_connection(int sk, int block) |
132159a5 JA |
500 | { |
501 | struct fio_net_cmd *cmd = NULL; | |
502 | int ret = 0; | |
503 | ||
504 | /* read forever */ | |
505 | while (!exit_backend) { | |
e951bdc4 JA |
506 | struct pollfd pfd = { |
507 | .fd = sk, | |
508 | .events = POLLIN, | |
509 | }; | |
510 | ||
511 | ret = 0; | |
512 | do { | |
513 | ret = poll(&pfd, 1, 100); | |
514 | if (ret < 0) { | |
515 | if (errno == EINTR) | |
516 | break; | |
517 | log_err("fio: poll: %s\n", strerror(errno)); | |
518 | break; | |
19c65179 JA |
519 | } else if (!ret) { |
520 | if (!block) | |
521 | return 0; | |
e951bdc4 | 522 | continue; |
19c65179 | 523 | } |
e951bdc4 JA |
524 | |
525 | if (pfd.revents & POLLIN) | |
526 | break; | |
527 | if (pfd.revents & (POLLERR|POLLHUP)) { | |
528 | ret = 1; | |
529 | break; | |
530 | } | |
19c65179 | 531 | } while (!exit_backend); |
e951bdc4 JA |
532 | |
533 | if (ret < 0) | |
534 | break; | |
535 | ||
536 | cmd = fio_net_recv_cmd(sk); | |
132159a5 | 537 | if (!cmd) { |
c28e8e8c | 538 | ret = -1; |
132159a5 JA |
539 | break; |
540 | } | |
541 | ||
132159a5 JA |
542 | ret = handle_command(cmd); |
543 | if (ret) | |
544 | break; | |
545 | ||
546 | free(cmd); | |
c77a99e7 | 547 | cmd = NULL; |
132159a5 JA |
548 | } |
549 | ||
550 | if (cmd) | |
551 | free(cmd); | |
552 | ||
553 | return ret; | |
554 | } | |
555 | ||
cc0df00a JA |
556 | void fio_server_idle_loop(void) |
557 | { | |
3ec62ec4 | 558 | if (!first_cmd_check) { |
01be038e | 559 | fio_net_send_simple_cmd(server_fd, FIO_NET_CMD_RUN, 0, NULL); |
3ec62ec4 JA |
560 | first_cmd_check = 1; |
561 | } | |
cc0df00a | 562 | if (server_fd != -1) |
70e0c316 | 563 | handle_connection(server_fd, 0); |
cc0df00a JA |
564 | } |
565 | ||
50d16976 JA |
566 | static int accept_loop(int listen_sk) |
567 | { | |
bb447a27 | 568 | struct sockaddr_in addr; |
5ba13ea6 | 569 | fio_socklen_t len = sizeof(addr); |
009b1be4 | 570 | struct pollfd pfd; |
132159a5 | 571 | int ret, sk, flags, exitval = 0; |
50d16976 | 572 | |
60efd14e JA |
573 | dprint(FD_NET, "server enter accept loop\n"); |
574 | ||
009b1be4 JA |
575 | flags = fcntl(listen_sk, F_GETFL); |
576 | flags |= O_NONBLOCK; | |
577 | fcntl(listen_sk, F_SETFL, flags); | |
50d16976 | 578 | again: |
009b1be4 JA |
579 | pfd.fd = listen_sk; |
580 | pfd.events = POLLIN; | |
581 | do { | |
582 | ret = poll(&pfd, 1, 100); | |
583 | if (ret < 0) { | |
584 | if (errno == EINTR) | |
585 | break; | |
fcee5ff6 | 586 | log_err("fio: poll: %s\n", strerror(errno)); |
009b1be4 JA |
587 | goto out; |
588 | } else if (!ret) | |
589 | continue; | |
590 | ||
591 | if (pfd.revents & POLLIN) | |
592 | break; | |
593 | } while (!exit_backend); | |
594 | ||
595 | if (exit_backend) | |
596 | goto out; | |
597 | ||
6b976bfc | 598 | sk = accept(listen_sk, (struct sockaddr *) &addr, &len); |
50d16976 | 599 | if (sk < 0) { |
690e09ae | 600 | log_err("fio: accept: %s\n", strerror(errno)); |
50d16976 JA |
601 | return -1; |
602 | } | |
603 | ||
bb447a27 | 604 | dprint(FD_NET, "server: connect from %s\n", inet_ntoa(addr.sin_addr)); |
46c48f1f | 605 | |
37db14fe JA |
606 | server_fd = sk; |
607 | ||
70e0c316 | 608 | exitval = handle_connection(sk, 1); |
50d16976 | 609 | |
37db14fe | 610 | server_fd = -1; |
50d16976 | 611 | close(sk); |
5c341e9a | 612 | |
009b1be4 | 613 | if (!exit_backend) |
5c341e9a JA |
614 | goto again; |
615 | ||
009b1be4 | 616 | out: |
132159a5 | 617 | return exitval; |
50d16976 JA |
618 | } |
619 | ||
13755d94 | 620 | int fio_server_text_output(const char *buf, size_t len) |
37db14fe | 621 | { |
337d75a8 | 622 | if (server_fd != -1) |
af9c9fb3 | 623 | return fio_net_send_cmd(server_fd, FIO_NET_CMD_TEXT, buf, len, 0); |
337d75a8 | 624 | |
13755d94 | 625 | return log_local_buf(buf, len); |
142575e6 JA |
626 | } |
627 | ||
a64e88da JA |
628 | static void convert_io_stat(struct io_stat *dst, struct io_stat *src) |
629 | { | |
630 | dst->max_val = cpu_to_le64(src->max_val); | |
631 | dst->min_val = cpu_to_le64(src->min_val); | |
632 | dst->samples = cpu_to_le64(src->samples); | |
802ad4a8 JA |
633 | |
634 | /* | |
635 | * Encode to IEEE 754 for network transfer | |
636 | */ | |
637 | dst->mean.u.i = __cpu_to_le64(fio_double_to_uint64(src->mean.u.f)); | |
638 | dst->S.u.i = __cpu_to_le64(fio_double_to_uint64(src->S.u.f)); | |
a64e88da JA |
639 | } |
640 | ||
641 | static void convert_gs(struct group_run_stats *dst, struct group_run_stats *src) | |
642 | { | |
643 | int i; | |
644 | ||
645 | for (i = 0; i < 2; i++) { | |
646 | dst->max_run[i] = cpu_to_le64(src->max_run[i]); | |
647 | dst->min_run[i] = cpu_to_le64(src->min_run[i]); | |
648 | dst->max_bw[i] = cpu_to_le64(src->max_bw[i]); | |
649 | dst->min_bw[i] = cpu_to_le64(src->min_bw[i]); | |
650 | dst->io_kb[i] = cpu_to_le64(src->io_kb[i]); | |
651 | dst->agg[i] = cpu_to_le64(src->agg[i]); | |
652 | } | |
653 | ||
654 | dst->kb_base = cpu_to_le32(src->kb_base); | |
655 | dst->groupid = cpu_to_le32(src->groupid); | |
656 | } | |
657 | ||
658 | /* | |
659 | * Send a CMD_TS, which packs struct thread_stat and group_run_stats | |
660 | * into a single payload. | |
661 | */ | |
662 | void fio_server_send_ts(struct thread_stat *ts, struct group_run_stats *rs) | |
663 | { | |
664 | struct cmd_ts_pdu p; | |
665 | int i, j; | |
666 | ||
60efd14e JA |
667 | dprint(FD_NET, "server sending end stats\n"); |
668 | ||
317b3c8b JA |
669 | memset(&p, 0, sizeof(p)); |
670 | ||
a64e88da JA |
671 | strcpy(p.ts.name, ts->name); |
672 | strcpy(p.ts.verror, ts->verror); | |
673 | strcpy(p.ts.description, ts->description); | |
674 | ||
ddcc0b69 | 675 | p.ts.error = cpu_to_le32(ts->error); |
a64e88da | 676 | p.ts.groupid = cpu_to_le32(ts->groupid); |
ddcc0b69 | 677 | p.ts.pid = cpu_to_le32(ts->pid); |
a64e88da JA |
678 | p.ts.members = cpu_to_le32(ts->members); |
679 | ||
680 | for (i = 0; i < 2; i++) { | |
681 | convert_io_stat(&p.ts.clat_stat[i], &ts->clat_stat[i]); | |
682 | convert_io_stat(&p.ts.slat_stat[i], &ts->slat_stat[i]); | |
683 | convert_io_stat(&p.ts.lat_stat[i], &ts->lat_stat[i]); | |
684 | convert_io_stat(&p.ts.bw_stat[i], &ts->bw_stat[i]); | |
685 | } | |
686 | ||
687 | p.ts.usr_time = cpu_to_le64(ts->usr_time); | |
688 | p.ts.sys_time = cpu_to_le64(ts->sys_time); | |
689 | p.ts.ctx = cpu_to_le64(ts->ctx); | |
690 | p.ts.minf = cpu_to_le64(ts->minf); | |
691 | p.ts.majf = cpu_to_le64(ts->majf); | |
692 | p.ts.clat_percentiles = cpu_to_le64(ts->clat_percentiles); | |
802ad4a8 JA |
693 | |
694 | for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) { | |
cfc03e46 JA |
695 | fio_fp64_t *src = &ts->percentile_list[i]; |
696 | fio_fp64_t *dst = &p.ts.percentile_list[i]; | |
802ad4a8 | 697 | |
cfc03e46 | 698 | dst->u.i = __cpu_to_le64(fio_double_to_uint64(src->u.f)); |
802ad4a8 | 699 | } |
a64e88da JA |
700 | |
701 | for (i = 0; i < FIO_IO_U_MAP_NR; i++) { | |
702 | p.ts.io_u_map[i] = cpu_to_le32(ts->io_u_map[i]); | |
703 | p.ts.io_u_submit[i] = cpu_to_le32(ts->io_u_submit[i]); | |
704 | p.ts.io_u_complete[i] = cpu_to_le32(ts->io_u_complete[i]); | |
705 | } | |
706 | ||
707 | for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) { | |
708 | p.ts.io_u_lat_u[i] = cpu_to_le32(ts->io_u_lat_u[i]); | |
709 | p.ts.io_u_lat_m[i] = cpu_to_le32(ts->io_u_lat_m[i]); | |
710 | } | |
711 | ||
712 | for (i = 0; i < 2; i++) | |
713 | for (j = 0; j < FIO_IO_U_PLAT_NR; j++) | |
714 | p.ts.io_u_plat[i][j] = cpu_to_le32(ts->io_u_plat[i][j]); | |
715 | ||
716 | for (i = 0; i < 3; i++) { | |
717 | p.ts.total_io_u[i] = cpu_to_le64(ts->total_io_u[i]); | |
93eee04a | 718 | p.ts.short_io_u[i] = cpu_to_le64(ts->short_io_u[i]); |
a64e88da JA |
719 | } |
720 | ||
93eee04a | 721 | p.ts.total_submit = cpu_to_le64(ts->total_submit); |
a64e88da JA |
722 | p.ts.total_complete = cpu_to_le64(ts->total_complete); |
723 | ||
724 | for (i = 0; i < 2; i++) { | |
725 | p.ts.io_bytes[i] = cpu_to_le64(ts->io_bytes[i]); | |
726 | p.ts.runtime[i] = cpu_to_le64(ts->runtime[i]); | |
727 | } | |
728 | ||
729 | p.ts.total_run_time = cpu_to_le64(ts->total_run_time); | |
730 | p.ts.continue_on_error = cpu_to_le16(ts->continue_on_error); | |
731 | p.ts.total_err_count = cpu_to_le64(ts->total_err_count); | |
ddcc0b69 JA |
732 | p.ts.first_error = cpu_to_le32(ts->first_error); |
733 | p.ts.kb_base = cpu_to_le32(ts->kb_base); | |
a64e88da JA |
734 | |
735 | convert_gs(&p.rs, rs); | |
736 | ||
af9c9fb3 | 737 | fio_net_send_cmd(server_fd, FIO_NET_CMD_TS, &p, sizeof(p), 0); |
a64e88da JA |
738 | } |
739 | ||
740 | void fio_server_send_gs(struct group_run_stats *rs) | |
741 | { | |
742 | struct group_run_stats gs; | |
743 | ||
60efd14e JA |
744 | dprint(FD_NET, "server sending group run stats\n"); |
745 | ||
a64e88da | 746 | convert_gs(&gs, rs); |
af9c9fb3 | 747 | fio_net_send_cmd(server_fd, FIO_NET_CMD_GS, &gs, sizeof(gs), 0); |
cf451d1e JA |
748 | } |
749 | ||
d09a64a0 JA |
750 | static void convert_agg(struct disk_util_agg *dst, struct disk_util_agg *src) |
751 | { | |
752 | int i; | |
753 | ||
754 | for (i = 0; i < 2; i++) { | |
755 | dst->ios[i] = cpu_to_le32(src->ios[i]); | |
756 | dst->merges[i] = cpu_to_le32(src->merges[i]); | |
757 | dst->sectors[i] = cpu_to_le64(src->sectors[i]); | |
758 | dst->ticks[i] = cpu_to_le32(src->ticks[i]); | |
759 | } | |
760 | ||
761 | dst->io_ticks = cpu_to_le32(src->io_ticks); | |
762 | dst->time_in_queue = cpu_to_le32(src->time_in_queue); | |
763 | dst->slavecount = cpu_to_le32(src->slavecount); | |
764 | dst->max_util.u.i = __cpu_to_le64(fio_double_to_uint64(src->max_util.u.f)); | |
765 | } | |
766 | ||
767 | static void convert_dus(struct disk_util_stat *dst, struct disk_util_stat *src) | |
768 | { | |
769 | int i; | |
770 | ||
771 | strcpy((char *) dst->name, (char *) src->name); | |
772 | ||
773 | for (i = 0; i < 2; i++) { | |
774 | dst->ios[i] = cpu_to_le32(src->ios[i]); | |
775 | dst->merges[i] = cpu_to_le32(src->merges[i]); | |
776 | dst->sectors[i] = cpu_to_le64(src->sectors[i]); | |
777 | dst->ticks[i] = cpu_to_le32(src->ticks[i]); | |
778 | } | |
779 | ||
780 | dst->io_ticks = cpu_to_le32(src->io_ticks); | |
781 | dst->time_in_queue = cpu_to_le32(src->time_in_queue); | |
782 | dst->msec = cpu_to_le64(src->msec); | |
783 | } | |
784 | ||
785 | void fio_server_send_du(void) | |
786 | { | |
787 | struct disk_util *du; | |
788 | struct flist_head *entry; | |
789 | struct cmd_du_pdu pdu; | |
790 | ||
791 | dprint(FD_NET, "server: sending disk_util %d\n", !flist_empty(&disk_list)); | |
792 | ||
0766d92e JA |
793 | memset(&pdu, 0, sizeof(pdu)); |
794 | ||
d09a64a0 JA |
795 | flist_for_each(entry, &disk_list) { |
796 | du = flist_entry(entry, struct disk_util, list); | |
797 | ||
798 | convert_dus(&pdu.dus, &du->dus); | |
799 | convert_agg(&pdu.agg, &du->agg); | |
800 | ||
801 | fio_net_send_cmd(server_fd, FIO_NET_CMD_DU, &pdu, sizeof(pdu), 0); | |
802 | } | |
803 | } | |
804 | ||
807f9971 JA |
805 | void fio_server_send_add_job(struct thread_options *o, const char *ioengine) |
806 | { | |
807 | struct cmd_add_job_pdu pdu; | |
808 | int i; | |
809 | ||
810 | strcpy((char *) pdu.jobname, o->name); | |
811 | strcpy((char *) pdu.ioengine, ioengine); | |
812 | ||
813 | pdu.iodepth = cpu_to_le32(o->iodepth); | |
814 | pdu.rw = cpu_to_le32(o->td_ddir); | |
815 | ||
816 | for (i = 0; i < 2; i++) { | |
817 | pdu.min_bs[i] = cpu_to_le32(o->min_bs[i]); | |
818 | pdu.max_bs[i] = cpu_to_le32(o->max_bs[i]); | |
819 | } | |
820 | ||
821 | pdu.numjobs = cpu_to_le32(o->numjobs); | |
822 | pdu.group_reporting = cpu_to_le32(o->group_reporting); | |
823 | ||
824 | fio_net_send_cmd(server_fd, FIO_NET_CMD_ADD_JOB, &pdu, sizeof(pdu), 0); | |
825 | } | |
826 | ||
142575e6 JA |
827 | int fio_server_log(const char *format, ...) |
828 | { | |
829 | char buffer[1024]; | |
830 | va_list args; | |
82fa6b21 | 831 | size_t len; |
142575e6 | 832 | |
60efd14e JA |
833 | dprint(FD_NET, "server log\n"); |
834 | ||
142575e6 | 835 | va_start(args, format); |
82fa6b21 | 836 | len = vsnprintf(buffer, sizeof(buffer), format, args); |
142575e6 JA |
837 | va_end(args); |
838 | ||
82fa6b21 | 839 | return fio_server_text_output(buffer, len); |
37db14fe | 840 | } |
e46d8091 | 841 | |
87aa8f19 | 842 | static int fio_init_server_ip(void) |
81179eec | 843 | { |
811826be JA |
844 | struct sockaddr *addr; |
845 | fio_socklen_t socklen; | |
87aa8f19 | 846 | int sk, opt; |
81179eec | 847 | |
811826be JA |
848 | if (use_ipv6) |
849 | sk = socket(AF_INET6, SOCK_STREAM, 0); | |
850 | else | |
851 | sk = socket(AF_INET, SOCK_STREAM, 0); | |
852 | ||
81179eec JA |
853 | if (sk < 0) { |
854 | log_err("fio: socket: %s\n", strerror(errno)); | |
855 | return -1; | |
856 | } | |
857 | ||
858 | opt = 1; | |
859 | if (setsockopt(sk, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt)) < 0) { | |
860 | log_err("fio: setsockopt: %s\n", strerror(errno)); | |
b94cba47 | 861 | close(sk); |
81179eec JA |
862 | return -1; |
863 | } | |
864 | #ifdef SO_REUSEPORT | |
6eb24791 | 865 | if (setsockopt(sk, SOL_SOCKET, SO_REUSEPORT, &opt, sizeof(opt)) < 0) { |
81179eec | 866 | log_err("fio: setsockopt: %s\n", strerror(errno)); |
b94cba47 | 867 | close(sk); |
81179eec JA |
868 | return -1; |
869 | } | |
870 | #endif | |
871 | ||
811826be JA |
872 | if (use_ipv6) { |
873 | addr = (struct sockaddr *) &saddr_in6; | |
874 | socklen = sizeof(saddr_in6); | |
875 | saddr_in6.sin6_family = AF_INET6; | |
876 | } else { | |
877 | addr = (struct sockaddr *) &saddr_in; | |
878 | socklen = sizeof(saddr_in); | |
879 | saddr_in.sin_family = AF_INET; | |
880 | } | |
81179eec | 881 | |
811826be | 882 | if (bind(sk, addr, socklen) < 0) { |
81179eec | 883 | log_err("fio: bind: %s\n", strerror(errno)); |
b94cba47 | 884 | close(sk); |
81179eec JA |
885 | return -1; |
886 | } | |
887 | ||
87aa8f19 JA |
888 | return sk; |
889 | } | |
890 | ||
891 | static int fio_init_server_sock(void) | |
892 | { | |
893 | struct sockaddr_un addr; | |
894 | fio_socklen_t len; | |
895 | mode_t mode; | |
896 | int sk; | |
897 | ||
898 | sk = socket(AF_UNIX, SOCK_STREAM, 0); | |
899 | if (sk < 0) { | |
900 | log_err("fio: socket: %s\n", strerror(errno)); | |
901 | return -1; | |
902 | } | |
903 | ||
904 | mode = umask(000); | |
905 | ||
906 | memset(&addr, 0, sizeof(addr)); | |
907 | addr.sun_family = AF_UNIX; | |
908 | strcpy(addr.sun_path, bind_sock); | |
909 | unlink(bind_sock); | |
910 | ||
911 | len = sizeof(addr.sun_family) + strlen(bind_sock) + 1; | |
912 | ||
913 | if (bind(sk, (struct sockaddr *) &addr, len) < 0) { | |
914 | log_err("fio: bind: %s\n", strerror(errno)); | |
b94cba47 | 915 | close(sk); |
87aa8f19 JA |
916 | return -1; |
917 | } | |
918 | ||
919 | umask(mode); | |
920 | return sk; | |
921 | } | |
922 | ||
923 | static int fio_init_server_connection(void) | |
924 | { | |
bebe6398 | 925 | char bind_str[128]; |
87aa8f19 JA |
926 | int sk; |
927 | ||
928 | dprint(FD_NET, "starting server\n"); | |
929 | ||
930 | if (!bind_sock) | |
931 | sk = fio_init_server_ip(); | |
932 | else | |
933 | sk = fio_init_server_sock(); | |
934 | ||
935 | if (sk < 0) | |
936 | return sk; | |
937 | ||
811826be JA |
938 | if (!bind_sock) { |
939 | char *p, port[16]; | |
940 | const void *src; | |
941 | int af; | |
942 | ||
943 | if (use_ipv6) { | |
944 | af = AF_INET6; | |
945 | src = &saddr_in6.sin6_addr; | |
946 | } else { | |
947 | af = AF_INET; | |
948 | src = &saddr_in.sin_addr; | |
949 | } | |
950 | ||
951 | p = (char *) inet_ntop(af, src, bind_str, sizeof(bind_str)); | |
952 | ||
953 | sprintf(port, ",%u", fio_net_port); | |
954 | if (p) | |
955 | strcat(p, port); | |
956 | else | |
957 | strcpy(bind_str, port); | |
958 | } else | |
bebe6398 JA |
959 | strcpy(bind_str, bind_sock); |
960 | ||
961 | log_info("fio: server listening on %s\n", bind_str); | |
962 | ||
89c1707c | 963 | if (listen(sk, 0) < 0) { |
81179eec JA |
964 | log_err("fio: listen: %s\n", strerror(errno)); |
965 | return -1; | |
966 | } | |
967 | ||
87aa8f19 JA |
968 | return sk; |
969 | } | |
970 | ||
3ec62ec4 JA |
971 | int fio_server_parse_host(const char *host, int *ipv6, struct in_addr *inp, |
972 | struct in6_addr *inp6) | |
973 | ||
974 | { | |
975 | int ret = 0; | |
976 | ||
977 | if (*ipv6) | |
978 | ret = inet_pton(AF_INET6, host, inp6); | |
979 | else | |
980 | ret = inet_pton(AF_INET, host, inp); | |
981 | ||
982 | if (ret != 1) { | |
983 | struct hostent *hent; | |
984 | ||
985 | hent = gethostbyname(host); | |
986 | if (!hent) { | |
987 | log_err("fio: failed to resolve <%s>\n", host); | |
988 | return 0; | |
989 | } | |
990 | ||
991 | if (*ipv6) { | |
992 | if (hent->h_addrtype != AF_INET6) { | |
993 | log_info("fio: falling back to IPv4\n"); | |
994 | *ipv6 = 0; | |
995 | } else | |
996 | memcpy(inp6, hent->h_addr_list[0], 16); | |
997 | } | |
998 | if (!*ipv6) { | |
999 | if (hent->h_addrtype != AF_INET) { | |
1000 | log_err("fio: lookup type mismatch\n"); | |
1001 | return 0; | |
1002 | } | |
1003 | memcpy(inp, hent->h_addr_list[0], 4); | |
1004 | } | |
1005 | ret = 1; | |
1006 | } | |
1007 | ||
1008 | return !(ret == 1); | |
1009 | } | |
1010 | ||
660a2bfb JA |
1011 | /* |
1012 | * Parse a host/ip/port string. Reads from 'str'. | |
1013 | * | |
1014 | * Outputs: | |
1015 | * | |
1016 | * For IPv4: | |
1017 | * *ptr is the host, *port is the port, inp is the destination. | |
1018 | * For IPv6: | |
1019 | * *ptr is the host, *port is the port, inp6 is the dest, and *ipv6 is 1. | |
1020 | * For local domain sockets: | |
1021 | * *ptr is the filename, *is_sock is 1. | |
1022 | */ | |
bebe6398 | 1023 | int fio_server_parse_string(const char *str, char **ptr, int *is_sock, |
811826be JA |
1024 | int *port, struct in_addr *inp, |
1025 | struct in6_addr *inp6, int *ipv6) | |
bebe6398 | 1026 | { |
76867621 JA |
1027 | const char *host = str; |
1028 | char *portp; | |
3ec62ec4 | 1029 | int lport = 0; |
76867621 | 1030 | |
bebe6398 JA |
1031 | *ptr = NULL; |
1032 | *is_sock = 0; | |
6d2cf394 | 1033 | *port = fio_net_port; |
811826be | 1034 | *ipv6 = 0; |
bebe6398 JA |
1035 | |
1036 | if (!strncmp(str, "sock:", 5)) { | |
1037 | *ptr = strdup(str + 5); | |
1038 | *is_sock = 1; | |
76867621 JA |
1039 | |
1040 | return 0; | |
1041 | } | |
1042 | ||
1043 | /* | |
1044 | * Is it ip:<ip or host>:port | |
1045 | */ | |
1046 | if (!strncmp(host, "ip:", 3)) | |
1047 | host += 3; | |
1048 | else if (!strncmp(host, "ip4:", 4)) | |
1049 | host += 4; | |
1050 | else if (!strncmp(host, "ip6:", 4)) { | |
1051 | host += 4; | |
1052 | *ipv6 = 1; | |
1053 | } else if (host[0] == ':') { | |
1054 | /* String is :port */ | |
1055 | host++; | |
1056 | lport = atoi(host); | |
1057 | if (!lport || lport > 65535) { | |
1058 | log_err("fio: bad server port %u\n", port); | |
1059 | return 1; | |
1060 | } | |
1061 | /* no hostname given, we are done */ | |
1062 | *port = lport; | |
1063 | return 0; | |
1064 | } | |
1065 | ||
1066 | /* | |
1067 | * If no port seen yet, check if there's a last ':' at the end | |
1068 | */ | |
1069 | if (!lport) { | |
1070 | portp = strchr(host, ','); | |
1071 | if (portp) { | |
1072 | *portp = '\0'; | |
1073 | portp++; | |
1074 | lport = atoi(portp); | |
bebe6398 JA |
1075 | if (!lport || lport > 65535) { |
1076 | log_err("fio: bad server port %u\n", port); | |
1077 | return 1; | |
1078 | } | |
bebe6398 | 1079 | } |
76867621 | 1080 | } |
bebe6398 | 1081 | |
76867621 JA |
1082 | if (lport) |
1083 | *port = lport; | |
bebe6398 | 1084 | |
76867621 JA |
1085 | if (!strlen(host)) |
1086 | return 0; | |
bebe6398 | 1087 | |
76867621 | 1088 | *ptr = strdup(host); |
811826be | 1089 | |
3ec62ec4 JA |
1090 | if (fio_server_parse_host(*ptr, ipv6, inp, inp6)) { |
1091 | free(*ptr); | |
1092 | *ptr = NULL; | |
1093 | return 1; | |
bebe6398 JA |
1094 | } |
1095 | ||
1096 | if (*port == 0) | |
1097 | *port = fio_net_port; | |
1098 | ||
1099 | return 0; | |
1100 | } | |
1101 | ||
87aa8f19 JA |
1102 | /* |
1103 | * Server arg should be one of: | |
1104 | * | |
1105 | * sock:/path/to/socket | |
1106 | * ip:1.2.3.4 | |
1107 | * 1.2.3.4 | |
1108 | * | |
1109 | * Where sock uses unix domain sockets, and ip binds the server to | |
1110 | * a specific interface. If no arguments are given to the server, it | |
1111 | * uses IP and binds to 0.0.0.0. | |
1112 | * | |
1113 | */ | |
1114 | static int fio_handle_server_arg(void) | |
1115 | { | |
6d2cf394 | 1116 | int port = fio_net_port; |
a7de0a11 | 1117 | int is_sock, ret = 0; |
bebe6398 | 1118 | |
87aa8f19 JA |
1119 | saddr_in.sin_addr.s_addr = htonl(INADDR_ANY); |
1120 | ||
1121 | if (!fio_server_arg) | |
a7de0a11 | 1122 | goto out; |
87aa8f19 | 1123 | |
4e5b8fb8 | 1124 | ret = fio_server_parse_string(fio_server_arg, &bind_sock, &is_sock, |
811826be JA |
1125 | &port, &saddr_in.sin_addr, |
1126 | &saddr_in6.sin6_addr, &use_ipv6); | |
4e5b8fb8 JA |
1127 | |
1128 | if (!is_sock && bind_sock) { | |
1129 | free(bind_sock); | |
1130 | bind_sock = NULL; | |
1131 | } | |
1132 | ||
a7de0a11 | 1133 | out: |
6d2cf394 JA |
1134 | fio_net_port = port; |
1135 | saddr_in.sin_port = htons(port); | |
811826be | 1136 | saddr_in6.sin6_port = htons(port); |
4e5b8fb8 | 1137 | return ret; |
87aa8f19 JA |
1138 | } |
1139 | ||
1140 | static int fio_server(void) | |
1141 | { | |
1142 | int sk, ret; | |
1143 | ||
1144 | dprint(FD_NET, "starting server\n"); | |
1145 | ||
1146 | if (fio_handle_server_arg()) | |
1147 | return -1; | |
1148 | ||
1149 | sk = fio_init_server_connection(); | |
1150 | if (sk < 0) | |
1151 | return -1; | |
81179eec JA |
1152 | |
1153 | ret = accept_loop(sk); | |
87aa8f19 | 1154 | |
81179eec | 1155 | close(sk); |
87aa8f19 JA |
1156 | |
1157 | if (fio_server_arg) { | |
1158 | free(fio_server_arg); | |
1159 | fio_server_arg = NULL; | |
1160 | } | |
bebe6398 JA |
1161 | if (bind_sock) |
1162 | free(bind_sock); | |
87aa8f19 | 1163 | |
81179eec JA |
1164 | return ret; |
1165 | } | |
1166 | ||
7b821684 | 1167 | void fio_server_got_signal(int signal) |
9abea48b | 1168 | { |
7b821684 JA |
1169 | if (signal == SIGPIPE) |
1170 | server_fd = -1; | |
1171 | else { | |
1172 | log_info("\nfio: terminating on signal %d\n", signal); | |
1173 | exit_backend = 1; | |
1174 | } | |
9abea48b JA |
1175 | } |
1176 | ||
13755d94 JA |
1177 | static int check_existing_pidfile(const char *pidfile) |
1178 | { | |
1179 | struct stat sb; | |
1180 | char buf[16]; | |
1181 | pid_t pid; | |
1182 | FILE *f; | |
1183 | ||
1184 | if (stat(pidfile, &sb)) | |
1185 | return 0; | |
1186 | ||
1187 | f = fopen(pidfile, "r"); | |
1188 | if (!f) | |
1189 | return 0; | |
1190 | ||
bfc3b179 | 1191 | if (fread(buf, sb.st_size, 1, f) <= 0) { |
13755d94 JA |
1192 | fclose(f); |
1193 | return 1; | |
1194 | } | |
1195 | fclose(f); | |
1196 | ||
1197 | pid = atoi(buf); | |
1198 | if (kill(pid, SIGCONT) < 0) | |
ea5aa1be | 1199 | return errno != ESRCH; |
13755d94 JA |
1200 | |
1201 | return 1; | |
1202 | } | |
1203 | ||
1204 | static int write_pid(pid_t pid, const char *pidfile) | |
402668f3 JA |
1205 | { |
1206 | FILE *fpid; | |
1207 | ||
1208 | fpid = fopen(pidfile, "w"); | |
1209 | if (!fpid) { | |
1210 | log_err("fio: failed opening pid file %s\n", pidfile); | |
13755d94 | 1211 | return 1; |
402668f3 JA |
1212 | } |
1213 | ||
1214 | fprintf(fpid, "%u\n", (unsigned int) pid); | |
13755d94 JA |
1215 | fclose(fpid); |
1216 | return 0; | |
402668f3 JA |
1217 | } |
1218 | ||
1219 | /* | |
1220 | * If pidfile is specified, background us. | |
1221 | */ | |
1222 | int fio_start_server(char *pidfile) | |
e46d8091 JA |
1223 | { |
1224 | pid_t pid; | |
402668f3 | 1225 | int ret; |
e46d8091 | 1226 | |
93bcfd20 BC |
1227 | #if defined(WIN32) |
1228 | WSADATA wsd; | |
1229 | WSAStartup(MAKEWORD(2,2), &wsd); | |
1230 | #endif | |
1231 | ||
402668f3 | 1232 | if (!pidfile) |
e46d8091 JA |
1233 | return fio_server(); |
1234 | ||
13755d94 JA |
1235 | if (check_existing_pidfile(pidfile)) { |
1236 | log_err("fio: pidfile %s exists and server appears alive\n", | |
1237 | pidfile); | |
1238 | return -1; | |
1239 | } | |
1240 | ||
e46d8091 JA |
1241 | pid = fork(); |
1242 | if (pid < 0) { | |
13755d94 | 1243 | log_err("fio: failed server fork: %s", strerror(errno)); |
402668f3 | 1244 | free(pidfile); |
c28e8e8c | 1245 | return -1; |
402668f3 | 1246 | } else if (pid) { |
13755d94 JA |
1247 | int ret = write_pid(pid, pidfile); |
1248 | ||
1249 | exit(ret); | |
402668f3 | 1250 | } |
e46d8091 JA |
1251 | |
1252 | setsid(); | |
13755d94 JA |
1253 | openlog("fio", LOG_NDELAY|LOG_NOWAIT|LOG_PID, LOG_USER); |
1254 | log_syslog = 1; | |
e46d8091 JA |
1255 | close(STDIN_FILENO); |
1256 | close(STDOUT_FILENO); | |
1257 | close(STDERR_FILENO); | |
1258 | f_out = NULL; | |
1259 | f_err = NULL; | |
402668f3 JA |
1260 | |
1261 | ret = fio_server(); | |
1262 | ||
1263 | closelog(); | |
1264 | unlink(pidfile); | |
1265 | free(pidfile); | |
1266 | return ret; | |
e46d8091 | 1267 | } |
87aa8f19 | 1268 | |
bebe6398 | 1269 | void fio_server_set_arg(const char *arg) |
87aa8f19 JA |
1270 | { |
1271 | fio_server_arg = strdup(arg); | |
1272 | } |