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", | |
b9d2f30a | 54 | "SERVER_START", |
807f9971 | 55 | "ADD_JOB", |
b9d2f30a | 56 | "CMD_RUN" |
89c1707c JA |
57 | }; |
58 | ||
59 | const char *fio_server_op(unsigned int op) | |
60 | { | |
61 | static char buf[32]; | |
62 | ||
63 | if (op < FIO_NET_CMD_NR) | |
64 | return fio_server_ops[op]; | |
65 | ||
66 | sprintf(buf, "UNKNOWN/%d", op); | |
67 | return buf; | |
68 | } | |
69 | ||
132159a5 JA |
70 | int fio_send_data(int sk, const void *p, unsigned int len) |
71 | { | |
b9d2f30a | 72 | assert(len <= sizeof(struct fio_net_cmd) + FIO_SERVER_MAX_FRAGMENT_PDU); |
794d69ca | 73 | |
132159a5 JA |
74 | do { |
75 | int ret = send(sk, p, len, 0); | |
76 | ||
77 | if (ret > 0) { | |
78 | len -= ret; | |
79 | if (!len) | |
80 | break; | |
81 | p += ret; | |
82 | continue; | |
83 | } else if (!ret) | |
84 | break; | |
85 | else if (errno == EAGAIN || errno == EINTR) | |
86 | continue; | |
7b821684 JA |
87 | else |
88 | break; | |
132159a5 JA |
89 | } while (!exit_backend); |
90 | ||
91 | if (!len) | |
92 | return 0; | |
93 | ||
94 | return 1; | |
95 | } | |
96 | ||
97 | int fio_recv_data(int sk, void *p, unsigned int len) | |
98 | { | |
99 | do { | |
100 | int ret = recv(sk, p, len, MSG_WAITALL); | |
101 | ||
102 | if (ret > 0) { | |
103 | len -= ret; | |
104 | if (!len) | |
105 | break; | |
106 | p += ret; | |
107 | continue; | |
108 | } else if (!ret) | |
109 | break; | |
110 | else if (errno == EAGAIN || errno == EINTR) | |
111 | continue; | |
7b821684 JA |
112 | else |
113 | break; | |
132159a5 JA |
114 | } while (!exit_backend); |
115 | ||
116 | if (!len) | |
117 | return 0; | |
118 | ||
119 | return -1; | |
120 | } | |
121 | ||
122 | static int verify_convert_cmd(struct fio_net_cmd *cmd) | |
123 | { | |
fcee5ff6 | 124 | uint16_t crc; |
132159a5 | 125 | |
fcee5ff6 JA |
126 | cmd->cmd_crc16 = le16_to_cpu(cmd->cmd_crc16); |
127 | cmd->pdu_crc16 = le16_to_cpu(cmd->pdu_crc16); | |
132159a5 | 128 | |
25dfa848 | 129 | crc = fio_crc16(cmd, FIO_NET_CMD_CRC_SZ); |
fcee5ff6 | 130 | if (crc != cmd->cmd_crc16) { |
132159a5 | 131 | log_err("fio: server bad crc on command (got %x, wanted %x)\n", |
fcee5ff6 | 132 | cmd->cmd_crc16, crc); |
132159a5 JA |
133 | return 1; |
134 | } | |
135 | ||
136 | cmd->version = le16_to_cpu(cmd->version); | |
137 | cmd->opcode = le16_to_cpu(cmd->opcode); | |
138 | cmd->flags = le32_to_cpu(cmd->flags); | |
af9c9fb3 | 139 | cmd->tag = le64_to_cpu(cmd->tag); |
132159a5 JA |
140 | cmd->pdu_len = le32_to_cpu(cmd->pdu_len); |
141 | ||
142 | switch (cmd->version) { | |
fa2ea806 | 143 | case FIO_SERVER_VER: |
132159a5 JA |
144 | break; |
145 | default: | |
146 | log_err("fio: bad server cmd version %d\n", cmd->version); | |
147 | return 1; | |
148 | } | |
149 | ||
b9d2f30a | 150 | if (cmd->pdu_len > FIO_SERVER_MAX_FRAGMENT_PDU) { |
132159a5 JA |
151 | log_err("fio: command payload too large: %u\n", cmd->pdu_len); |
152 | return 1; | |
153 | } | |
154 | ||
155 | return 0; | |
156 | } | |
157 | ||
a64e88da JA |
158 | /* |
159 | * Read (and defragment, if necessary) incoming commands | |
160 | */ | |
e951bdc4 | 161 | struct fio_net_cmd *fio_net_recv_cmd(int sk) |
132159a5 | 162 | { |
a64e88da JA |
163 | struct fio_net_cmd cmd, *cmdret = NULL; |
164 | size_t cmd_size = 0, pdu_offset = 0; | |
fcee5ff6 | 165 | uint16_t crc; |
a64e88da JA |
166 | int ret, first = 1; |
167 | void *pdu = NULL; | |
132159a5 | 168 | |
a64e88da JA |
169 | do { |
170 | ret = fio_recv_data(sk, &cmd, sizeof(cmd)); | |
171 | if (ret) | |
172 | break; | |
132159a5 | 173 | |
a64e88da JA |
174 | /* We have a command, verify it and swap if need be */ |
175 | ret = verify_convert_cmd(&cmd); | |
176 | if (ret) | |
177 | break; | |
132159a5 | 178 | |
0b8f30a5 JA |
179 | if (first) { |
180 | /* if this is text, add room for \0 at the end */ | |
181 | cmd_size = sizeof(cmd) + cmd.pdu_len + 1; | |
182 | assert(!cmdret); | |
183 | } else | |
a64e88da | 184 | cmd_size += cmd.pdu_len; |
132159a5 | 185 | |
a64e88da | 186 | cmdret = realloc(cmdret, cmd_size); |
132159a5 | 187 | |
a64e88da JA |
188 | if (first) |
189 | memcpy(cmdret, &cmd, sizeof(cmd)); | |
67f15dcf JA |
190 | else if (cmdret->opcode != cmd.opcode) { |
191 | log_err("fio: fragment opcode mismatch (%d != %d)\n", | |
192 | cmdret->opcode, cmd.opcode); | |
193 | ret = 1; | |
194 | break; | |
195 | } | |
a64e88da JA |
196 | |
197 | if (!cmd.pdu_len) | |
198 | break; | |
199 | ||
200 | /* There's payload, get it */ | |
201 | pdu = (void *) cmdret->payload + pdu_offset; | |
202 | ret = fio_recv_data(sk, pdu, cmd.pdu_len); | |
203 | if (ret) | |
204 | break; | |
205 | ||
206 | /* Verify payload crc */ | |
25dfa848 | 207 | crc = fio_crc16(pdu, cmd.pdu_len); |
a64e88da JA |
208 | if (crc != cmd.pdu_crc16) { |
209 | log_err("fio: server bad crc on payload "); | |
210 | log_err("(got %x, wanted %x)\n", cmd.pdu_crc16, crc); | |
211 | ret = 1; | |
212 | break; | |
213 | } | |
214 | ||
215 | pdu_offset += cmd.pdu_len; | |
817f06bb JA |
216 | if (!first) |
217 | cmdret->pdu_len += cmd.pdu_len; | |
a64e88da JA |
218 | first = 0; |
219 | } while (cmd.flags & FIO_NET_CMD_F_MORE); | |
132159a5 | 220 | |
a64e88da JA |
221 | if (ret) { |
222 | free(cmdret); | |
223 | cmdret = NULL; | |
0b8f30a5 JA |
224 | } else if (cmdret) { |
225 | /* zero-terminate text input */ | |
084d1c6f JA |
226 | if (cmdret->pdu_len) { |
227 | if (cmdret->opcode == FIO_NET_CMD_TEXT) { | |
228 | struct cmd_text_pdu *pdu = (struct cmd_text_pdu *) cmdret->payload; | |
229 | char *buf = (char *) pdu->buf; | |
0b8f30a5 | 230 | |
084d1c6f JA |
231 | buf[pdu->buf_len ] = '\0'; |
232 | } else if (cmdret->opcode == FIO_NET_CMD_JOB) { | |
233 | char *buf = (char *) cmdret->payload; | |
234 | ||
235 | buf[cmdret->pdu_len ] = '\0'; | |
236 | } | |
0b8f30a5 | 237 | } |
084d1c6f | 238 | |
0b8f30a5 | 239 | /* frag flag is internal */ |
a64e88da | 240 | cmdret->flags &= ~FIO_NET_CMD_F_MORE; |
0b8f30a5 | 241 | } |
a64e88da JA |
242 | |
243 | return cmdret; | |
132159a5 JA |
244 | } |
245 | ||
246 | void fio_net_cmd_crc(struct fio_net_cmd *cmd) | |
247 | { | |
248 | uint32_t pdu_len; | |
249 | ||
25dfa848 | 250 | cmd->cmd_crc16 = __cpu_to_le16(fio_crc16(cmd, FIO_NET_CMD_CRC_SZ)); |
132159a5 JA |
251 | |
252 | pdu_len = le32_to_cpu(cmd->pdu_len); | |
253 | if (pdu_len) | |
25dfa848 | 254 | cmd->pdu_crc16 = __cpu_to_le16(fio_crc16(cmd->payload, pdu_len)); |
132159a5 JA |
255 | } |
256 | ||
af9c9fb3 JA |
257 | int fio_net_send_cmd(int fd, uint16_t opcode, const void *buf, off_t size, |
258 | uint64_t tag) | |
794d69ca | 259 | { |
7f868316 JA |
260 | struct fio_net_cmd *cmd = NULL; |
261 | size_t this_len, cur_len = 0; | |
794d69ca JA |
262 | int ret; |
263 | ||
264 | do { | |
265 | this_len = size; | |
b9d2f30a JA |
266 | if (this_len > FIO_SERVER_MAX_FRAGMENT_PDU) |
267 | this_len = FIO_SERVER_MAX_FRAGMENT_PDU; | |
794d69ca | 268 | |
7f868316 JA |
269 | if (!cmd || cur_len < sizeof(*cmd) + this_len) { |
270 | if (cmd) | |
271 | free(cmd); | |
272 | ||
273 | cur_len = sizeof(*cmd) + this_len; | |
274 | cmd = malloc(cur_len); | |
275 | } | |
794d69ca | 276 | |
af9c9fb3 | 277 | fio_init_net_cmd(cmd, opcode, buf, this_len, tag); |
794d69ca JA |
278 | |
279 | if (this_len < size) | |
ddcc0b69 | 280 | cmd->flags = __cpu_to_le32(FIO_NET_CMD_F_MORE); |
794d69ca JA |
281 | |
282 | fio_net_cmd_crc(cmd); | |
283 | ||
284 | ret = fio_send_data(fd, cmd, sizeof(*cmd) + this_len); | |
794d69ca JA |
285 | size -= this_len; |
286 | buf += this_len; | |
287 | } while (!ret && size); | |
288 | ||
7f868316 JA |
289 | if (cmd) |
290 | free(cmd); | |
291 | ||
794d69ca JA |
292 | return ret; |
293 | } | |
294 | ||
89c1707c | 295 | static int fio_net_send_simple_stack_cmd(int sk, uint16_t opcode, uint64_t tag) |
132159a5 | 296 | { |
178cde9f | 297 | struct fio_net_cmd cmd; |
132159a5 | 298 | |
af9c9fb3 | 299 | fio_init_net_cmd(&cmd, opcode, NULL, 0, tag); |
132159a5 JA |
300 | fio_net_cmd_crc(&cmd); |
301 | ||
302 | return fio_send_data(sk, &cmd, sizeof(cmd)); | |
303 | } | |
304 | ||
89c1707c JA |
305 | /* |
306 | * If 'list' is non-NULL, then allocate and store the sent command for | |
307 | * later verification. | |
308 | */ | |
309 | int fio_net_send_simple_cmd(int sk, uint16_t opcode, uint64_t tag, | |
310 | struct flist_head *list) | |
311 | { | |
312 | struct fio_net_int_cmd *cmd; | |
313 | int ret; | |
314 | ||
315 | if (!list) | |
316 | return fio_net_send_simple_stack_cmd(sk, opcode, tag); | |
317 | ||
318 | cmd = malloc(sizeof(*cmd)); | |
319 | ||
df380934 | 320 | fio_init_net_cmd(&cmd->cmd, opcode, NULL, 0, (uintptr_t) cmd); |
89c1707c JA |
321 | fio_net_cmd_crc(&cmd->cmd); |
322 | ||
323 | INIT_FLIST_HEAD(&cmd->list); | |
324 | gettimeofday(&cmd->tv, NULL); | |
325 | cmd->saved_tag = tag; | |
326 | ||
327 | ret = fio_send_data(sk, &cmd->cmd, sizeof(cmd->cmd)); | |
328 | if (ret) { | |
329 | free(cmd); | |
330 | return ret; | |
331 | } | |
332 | ||
333 | flist_add_tail(&cmd->list, list); | |
334 | return 0; | |
335 | } | |
336 | ||
9abea48b | 337 | static int fio_server_send_quit_cmd(void) |
437377e1 | 338 | { |
46c48f1f | 339 | dprint(FD_NET, "server: sending quit\n"); |
89c1707c | 340 | return fio_net_send_simple_cmd(server_fd, FIO_NET_CMD_QUIT, 0, NULL); |
437377e1 JA |
341 | } |
342 | ||
b9d2f30a | 343 | static int handle_run_cmd(struct fio_net_cmd *cmd) |
132159a5 | 344 | { |
11e950bd | 345 | struct cmd_end_pdu epdu; |
a64e88da | 346 | int ret; |
132159a5 | 347 | |
2e1df07d | 348 | ret = fio_backend(); |
11e950bd JA |
349 | |
350 | epdu.error = ret; | |
351 | fio_net_send_cmd(server_fd, FIO_NET_CMD_STOP, &epdu, sizeof(epdu), 0); | |
352 | ||
9abea48b | 353 | fio_server_send_quit_cmd(); |
81179eec | 354 | reset_fio_state(); |
8663ea65 | 355 | first_cmd_check = 0; |
81179eec JA |
356 | return ret; |
357 | } | |
358 | ||
b9d2f30a JA |
359 | static int handle_job_cmd(struct fio_net_cmd *cmd) |
360 | { | |
361 | char *buf = (char *) cmd->payload; | |
362 | struct cmd_start_pdu spdu; | |
363 | ||
364 | if (parse_jobs_ini(buf, 1, 0)) { | |
365 | fio_server_send_quit_cmd(); | |
366 | return -1; | |
367 | } | |
368 | ||
369 | spdu.jobs = cpu_to_le32(thread_number); | |
370 | fio_net_send_cmd(server_fd, FIO_NET_CMD_START, &spdu, sizeof(spdu), 0); | |
371 | return 0; | |
372 | } | |
373 | ||
81179eec JA |
374 | static int handle_jobline_cmd(struct fio_net_cmd *cmd) |
375 | { | |
fa2ea806 JA |
376 | void *pdu = cmd->payload; |
377 | struct cmd_single_line_pdu *cslp; | |
378 | struct cmd_line_pdu *clp; | |
379 | unsigned long offset; | |
b9d2f30a | 380 | struct cmd_start_pdu spdu; |
fa2ea806 | 381 | char **argv; |
b9d2f30a | 382 | int i; |
81179eec | 383 | |
fa2ea806 JA |
384 | clp = pdu; |
385 | clp->lines = le16_to_cpu(clp->lines); | |
386 | argv = malloc(clp->lines * sizeof(char *)); | |
387 | offset = sizeof(*clp); | |
81179eec | 388 | |
fa2ea806 | 389 | dprint(FD_NET, "server: %d command line args\n", clp->lines); |
39e8e016 | 390 | |
fa2ea806 JA |
391 | for (i = 0; i < clp->lines; i++) { |
392 | cslp = pdu + offset; | |
393 | argv[i] = (char *) cslp->text; | |
394 | ||
395 | offset += sizeof(*cslp) + le16_to_cpu(cslp->len); | |
39e8e016 JA |
396 | dprint(FD_NET, "server: %d: %s\n", i, argv[i]); |
397 | } | |
81179eec | 398 | |
fa2ea806 | 399 | if (parse_cmd_line(clp->lines, argv)) { |
e6d1c668 | 400 | fio_server_send_quit_cmd(); |
fa2ea806 | 401 | free(argv); |
81179eec | 402 | return -1; |
e6d1c668 | 403 | } |
81179eec | 404 | |
fa2ea806 JA |
405 | free(argv); |
406 | ||
b9d2f30a JA |
407 | spdu.jobs = cpu_to_le32(thread_number); |
408 | fio_net_send_cmd(server_fd, FIO_NET_CMD_START, &spdu, sizeof(spdu), 0); | |
409 | return 0; | |
132159a5 JA |
410 | } |
411 | ||
c28e8e8c JA |
412 | static int handle_probe_cmd(struct fio_net_cmd *cmd) |
413 | { | |
414 | struct cmd_probe_pdu probe; | |
415 | ||
89c1707c JA |
416 | dprint(FD_NET, "server: sending probe reply\n"); |
417 | ||
c28e8e8c JA |
418 | memset(&probe, 0, sizeof(probe)); |
419 | gethostname((char *) probe.hostname, sizeof(probe.hostname)); | |
6eb24791 JA |
420 | #ifdef FIO_BIG_ENDIAN |
421 | probe.bigendian = 1; | |
422 | #endif | |
81179eec JA |
423 | probe.fio_major = FIO_MAJOR; |
424 | probe.fio_minor = FIO_MINOR; | |
425 | probe.fio_patch = FIO_PATCH; | |
c28e8e8c | 426 | |
cca84643 JA |
427 | probe.os = FIO_OS; |
428 | probe.arch = FIO_ARCH; | |
429 | ||
38fdef22 JA |
430 | probe.bpp = sizeof(void *); |
431 | ||
89c1707c | 432 | return fio_net_send_cmd(server_fd, FIO_NET_CMD_PROBE, &probe, sizeof(probe), cmd->tag); |
af9c9fb3 JA |
433 | } |
434 | ||
435 | static int handle_send_eta_cmd(struct fio_net_cmd *cmd) | |
436 | { | |
437 | struct jobs_eta *je; | |
438 | size_t size; | |
af9c9fb3 JA |
439 | int i; |
440 | ||
b814fb26 JA |
441 | if (!thread_number) |
442 | return 0; | |
443 | ||
444 | size = sizeof(*je) + thread_number * sizeof(char) + 1; | |
7f868316 JA |
445 | je = malloc(size); |
446 | memset(je, 0, size); | |
af9c9fb3 JA |
447 | |
448 | if (!calc_thread_status(je, 1)) { | |
449 | free(je); | |
450 | return 0; | |
451 | } | |
452 | ||
453 | dprint(FD_NET, "server sending status\n"); | |
454 | ||
455 | je->nr_running = cpu_to_le32(je->nr_running); | |
456 | je->nr_ramp = cpu_to_le32(je->nr_ramp); | |
457 | je->nr_pending = cpu_to_le32(je->nr_pending); | |
458 | je->files_open = cpu_to_le32(je->files_open); | |
af9c9fb3 JA |
459 | |
460 | for (i = 0; i < 2; i++) { | |
3e47bd25 JA |
461 | je->m_rate[i] = cpu_to_le32(je->m_rate[i]); |
462 | je->t_rate[i] = cpu_to_le32(je->t_rate[i]); | |
463 | je->m_iops[i] = cpu_to_le32(je->m_iops[i]); | |
464 | je->t_iops[i] = cpu_to_le32(je->t_iops[i]); | |
af9c9fb3 JA |
465 | je->rate[i] = cpu_to_le32(je->rate[i]); |
466 | je->iops[i] = cpu_to_le32(je->iops[i]); | |
467 | } | |
468 | ||
c1970b90 | 469 | je->elapsed_sec = cpu_to_le64(je->elapsed_sec); |
af9c9fb3 | 470 | je->eta_sec = cpu_to_le64(je->eta_sec); |
8c621fb2 | 471 | je->nr_threads = cpu_to_le32(je->nr_threads); |
af9c9fb3 | 472 | |
7f868316 | 473 | fio_net_send_cmd(server_fd, FIO_NET_CMD_ETA, je, size, cmd->tag); |
af9c9fb3 JA |
474 | free(je); |
475 | return 0; | |
c28e8e8c JA |
476 | } |
477 | ||
132159a5 JA |
478 | static int handle_command(struct fio_net_cmd *cmd) |
479 | { | |
480 | int ret; | |
481 | ||
89c1707c JA |
482 | dprint(FD_NET, "server: got op [%s], pdu=%u, tag=%lx\n", |
483 | fio_server_op(cmd->opcode), cmd->pdu_len, cmd->tag); | |
46c48f1f | 484 | |
132159a5 JA |
485 | switch (cmd->opcode) { |
486 | case FIO_NET_CMD_QUIT: | |
cc0df00a | 487 | fio_terminate_threads(TERMINATE_ALL); |
c28e8e8c | 488 | return -1; |
d7959186 | 489 | case FIO_NET_CMD_EXIT: |
132159a5 | 490 | exit_backend = 1; |
c28e8e8c | 491 | return -1; |
132159a5 | 492 | case FIO_NET_CMD_JOB: |
0b8f30a5 | 493 | ret = handle_job_cmd(cmd); |
132159a5 | 494 | break; |
81179eec JA |
495 | case FIO_NET_CMD_JOBLINE: |
496 | ret = handle_jobline_cmd(cmd); | |
497 | break; | |
c28e8e8c JA |
498 | case FIO_NET_CMD_PROBE: |
499 | ret = handle_probe_cmd(cmd); | |
500 | break; | |
af9c9fb3 JA |
501 | case FIO_NET_CMD_SEND_ETA: |
502 | ret = handle_send_eta_cmd(cmd); | |
503 | break; | |
b9d2f30a JA |
504 | case FIO_NET_CMD_RUN: |
505 | ret = handle_run_cmd(cmd); | |
506 | break; | |
132159a5 | 507 | default: |
89c1707c | 508 | log_err("fio: unknown opcode: %s\n",fio_server_op(cmd->opcode)); |
132159a5 JA |
509 | ret = 1; |
510 | } | |
511 | ||
512 | return ret; | |
513 | } | |
514 | ||
70e0c316 | 515 | static int handle_connection(int sk, int block) |
132159a5 JA |
516 | { |
517 | struct fio_net_cmd *cmd = NULL; | |
518 | int ret = 0; | |
519 | ||
520 | /* read forever */ | |
521 | while (!exit_backend) { | |
e951bdc4 JA |
522 | struct pollfd pfd = { |
523 | .fd = sk, | |
524 | .events = POLLIN, | |
525 | }; | |
526 | ||
527 | ret = 0; | |
528 | do { | |
529 | ret = poll(&pfd, 1, 100); | |
530 | if (ret < 0) { | |
531 | if (errno == EINTR) | |
532 | break; | |
533 | log_err("fio: poll: %s\n", strerror(errno)); | |
534 | break; | |
19c65179 JA |
535 | } else if (!ret) { |
536 | if (!block) | |
537 | return 0; | |
e951bdc4 | 538 | continue; |
19c65179 | 539 | } |
e951bdc4 JA |
540 | |
541 | if (pfd.revents & POLLIN) | |
542 | break; | |
543 | if (pfd.revents & (POLLERR|POLLHUP)) { | |
544 | ret = 1; | |
545 | break; | |
546 | } | |
19c65179 | 547 | } while (!exit_backend); |
e951bdc4 JA |
548 | |
549 | if (ret < 0) | |
550 | break; | |
551 | ||
552 | cmd = fio_net_recv_cmd(sk); | |
132159a5 | 553 | if (!cmd) { |
c28e8e8c | 554 | ret = -1; |
132159a5 JA |
555 | break; |
556 | } | |
557 | ||
132159a5 JA |
558 | ret = handle_command(cmd); |
559 | if (ret) | |
560 | break; | |
561 | ||
562 | free(cmd); | |
c77a99e7 | 563 | cmd = NULL; |
132159a5 JA |
564 | } |
565 | ||
566 | if (cmd) | |
567 | free(cmd); | |
568 | ||
569 | return ret; | |
570 | } | |
571 | ||
cc0df00a JA |
572 | void fio_server_idle_loop(void) |
573 | { | |
3ec62ec4 | 574 | if (!first_cmd_check) { |
5d7793aa | 575 | fio_net_send_simple_cmd(server_fd, FIO_NET_CMD_SERVER_START, 0, NULL); |
3ec62ec4 JA |
576 | first_cmd_check = 1; |
577 | } | |
cc0df00a | 578 | if (server_fd != -1) |
70e0c316 | 579 | handle_connection(server_fd, 0); |
cc0df00a JA |
580 | } |
581 | ||
50d16976 JA |
582 | static int accept_loop(int listen_sk) |
583 | { | |
bb447a27 | 584 | struct sockaddr_in addr; |
5ba13ea6 | 585 | fio_socklen_t len = sizeof(addr); |
009b1be4 | 586 | struct pollfd pfd; |
132159a5 | 587 | int ret, sk, flags, exitval = 0; |
50d16976 | 588 | |
60efd14e JA |
589 | dprint(FD_NET, "server enter accept loop\n"); |
590 | ||
009b1be4 JA |
591 | flags = fcntl(listen_sk, F_GETFL); |
592 | flags |= O_NONBLOCK; | |
593 | fcntl(listen_sk, F_SETFL, flags); | |
50d16976 | 594 | again: |
009b1be4 JA |
595 | pfd.fd = listen_sk; |
596 | pfd.events = POLLIN; | |
597 | do { | |
598 | ret = poll(&pfd, 1, 100); | |
599 | if (ret < 0) { | |
600 | if (errno == EINTR) | |
601 | break; | |
fcee5ff6 | 602 | log_err("fio: poll: %s\n", strerror(errno)); |
009b1be4 JA |
603 | goto out; |
604 | } else if (!ret) | |
605 | continue; | |
606 | ||
607 | if (pfd.revents & POLLIN) | |
608 | break; | |
609 | } while (!exit_backend); | |
610 | ||
611 | if (exit_backend) | |
612 | goto out; | |
613 | ||
6b976bfc | 614 | sk = accept(listen_sk, (struct sockaddr *) &addr, &len); |
50d16976 | 615 | if (sk < 0) { |
690e09ae | 616 | log_err("fio: accept: %s\n", strerror(errno)); |
50d16976 JA |
617 | return -1; |
618 | } | |
619 | ||
bb447a27 | 620 | dprint(FD_NET, "server: connect from %s\n", inet_ntoa(addr.sin_addr)); |
46c48f1f | 621 | |
37db14fe JA |
622 | server_fd = sk; |
623 | ||
70e0c316 | 624 | exitval = handle_connection(sk, 1); |
50d16976 | 625 | |
37db14fe | 626 | server_fd = -1; |
50d16976 | 627 | close(sk); |
5c341e9a | 628 | |
009b1be4 | 629 | if (!exit_backend) |
5c341e9a JA |
630 | goto again; |
631 | ||
009b1be4 | 632 | out: |
132159a5 | 633 | return exitval; |
50d16976 JA |
634 | } |
635 | ||
084d1c6f | 636 | int fio_server_text_output(int level, const char *buf, size_t len) |
37db14fe | 637 | { |
084d1c6f JA |
638 | struct cmd_text_pdu *pdu; |
639 | unsigned int tlen; | |
640 | struct timeval tv; | |
641 | ||
642 | if (server_fd == -1) | |
643 | return log_local_buf(buf, len); | |
644 | ||
645 | tlen = sizeof(*pdu) + len; | |
646 | pdu = malloc(tlen); | |
647 | ||
648 | pdu->level = __cpu_to_le32(level); | |
649 | pdu->buf_len = __cpu_to_le32(len); | |
650 | ||
651 | gettimeofday(&tv, NULL); | |
652 | pdu->log_sec = __cpu_to_le64(tv.tv_sec); | |
653 | pdu->log_usec = __cpu_to_le64(tv.tv_usec); | |
337d75a8 | 654 | |
084d1c6f JA |
655 | memcpy(pdu->buf, buf, len); |
656 | ||
657 | fio_net_send_cmd(server_fd, FIO_NET_CMD_TEXT, pdu, tlen, 0); | |
658 | free(pdu); | |
659 | return len; | |
142575e6 JA |
660 | } |
661 | ||
a64e88da JA |
662 | static void convert_io_stat(struct io_stat *dst, struct io_stat *src) |
663 | { | |
664 | dst->max_val = cpu_to_le64(src->max_val); | |
665 | dst->min_val = cpu_to_le64(src->min_val); | |
666 | dst->samples = cpu_to_le64(src->samples); | |
802ad4a8 JA |
667 | |
668 | /* | |
669 | * Encode to IEEE 754 for network transfer | |
670 | */ | |
671 | dst->mean.u.i = __cpu_to_le64(fio_double_to_uint64(src->mean.u.f)); | |
672 | dst->S.u.i = __cpu_to_le64(fio_double_to_uint64(src->S.u.f)); | |
a64e88da JA |
673 | } |
674 | ||
675 | static void convert_gs(struct group_run_stats *dst, struct group_run_stats *src) | |
676 | { | |
677 | int i; | |
678 | ||
679 | for (i = 0; i < 2; i++) { | |
680 | dst->max_run[i] = cpu_to_le64(src->max_run[i]); | |
681 | dst->min_run[i] = cpu_to_le64(src->min_run[i]); | |
682 | dst->max_bw[i] = cpu_to_le64(src->max_bw[i]); | |
683 | dst->min_bw[i] = cpu_to_le64(src->min_bw[i]); | |
684 | dst->io_kb[i] = cpu_to_le64(src->io_kb[i]); | |
685 | dst->agg[i] = cpu_to_le64(src->agg[i]); | |
686 | } | |
687 | ||
688 | dst->kb_base = cpu_to_le32(src->kb_base); | |
689 | dst->groupid = cpu_to_le32(src->groupid); | |
690 | } | |
691 | ||
692 | /* | |
693 | * Send a CMD_TS, which packs struct thread_stat and group_run_stats | |
694 | * into a single payload. | |
695 | */ | |
696 | void fio_server_send_ts(struct thread_stat *ts, struct group_run_stats *rs) | |
697 | { | |
698 | struct cmd_ts_pdu p; | |
699 | int i, j; | |
700 | ||
60efd14e JA |
701 | dprint(FD_NET, "server sending end stats\n"); |
702 | ||
317b3c8b JA |
703 | memset(&p, 0, sizeof(p)); |
704 | ||
a64e88da JA |
705 | strcpy(p.ts.name, ts->name); |
706 | strcpy(p.ts.verror, ts->verror); | |
707 | strcpy(p.ts.description, ts->description); | |
708 | ||
ddcc0b69 | 709 | p.ts.error = cpu_to_le32(ts->error); |
a64e88da | 710 | p.ts.groupid = cpu_to_le32(ts->groupid); |
ddcc0b69 | 711 | p.ts.pid = cpu_to_le32(ts->pid); |
a64e88da JA |
712 | p.ts.members = cpu_to_le32(ts->members); |
713 | ||
714 | for (i = 0; i < 2; i++) { | |
715 | convert_io_stat(&p.ts.clat_stat[i], &ts->clat_stat[i]); | |
716 | convert_io_stat(&p.ts.slat_stat[i], &ts->slat_stat[i]); | |
717 | convert_io_stat(&p.ts.lat_stat[i], &ts->lat_stat[i]); | |
718 | convert_io_stat(&p.ts.bw_stat[i], &ts->bw_stat[i]); | |
719 | } | |
720 | ||
721 | p.ts.usr_time = cpu_to_le64(ts->usr_time); | |
722 | p.ts.sys_time = cpu_to_le64(ts->sys_time); | |
723 | p.ts.ctx = cpu_to_le64(ts->ctx); | |
724 | p.ts.minf = cpu_to_le64(ts->minf); | |
725 | p.ts.majf = cpu_to_le64(ts->majf); | |
726 | p.ts.clat_percentiles = cpu_to_le64(ts->clat_percentiles); | |
802ad4a8 JA |
727 | |
728 | for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) { | |
cfc03e46 JA |
729 | fio_fp64_t *src = &ts->percentile_list[i]; |
730 | fio_fp64_t *dst = &p.ts.percentile_list[i]; | |
802ad4a8 | 731 | |
cfc03e46 | 732 | dst->u.i = __cpu_to_le64(fio_double_to_uint64(src->u.f)); |
802ad4a8 | 733 | } |
a64e88da JA |
734 | |
735 | for (i = 0; i < FIO_IO_U_MAP_NR; i++) { | |
736 | p.ts.io_u_map[i] = cpu_to_le32(ts->io_u_map[i]); | |
737 | p.ts.io_u_submit[i] = cpu_to_le32(ts->io_u_submit[i]); | |
738 | p.ts.io_u_complete[i] = cpu_to_le32(ts->io_u_complete[i]); | |
739 | } | |
740 | ||
741 | for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) { | |
742 | p.ts.io_u_lat_u[i] = cpu_to_le32(ts->io_u_lat_u[i]); | |
743 | p.ts.io_u_lat_m[i] = cpu_to_le32(ts->io_u_lat_m[i]); | |
744 | } | |
745 | ||
746 | for (i = 0; i < 2; i++) | |
747 | for (j = 0; j < FIO_IO_U_PLAT_NR; j++) | |
748 | p.ts.io_u_plat[i][j] = cpu_to_le32(ts->io_u_plat[i][j]); | |
749 | ||
750 | for (i = 0; i < 3; i++) { | |
751 | p.ts.total_io_u[i] = cpu_to_le64(ts->total_io_u[i]); | |
93eee04a | 752 | p.ts.short_io_u[i] = cpu_to_le64(ts->short_io_u[i]); |
a64e88da JA |
753 | } |
754 | ||
93eee04a | 755 | p.ts.total_submit = cpu_to_le64(ts->total_submit); |
a64e88da JA |
756 | p.ts.total_complete = cpu_to_le64(ts->total_complete); |
757 | ||
758 | for (i = 0; i < 2; i++) { | |
759 | p.ts.io_bytes[i] = cpu_to_le64(ts->io_bytes[i]); | |
760 | p.ts.runtime[i] = cpu_to_le64(ts->runtime[i]); | |
761 | } | |
762 | ||
763 | p.ts.total_run_time = cpu_to_le64(ts->total_run_time); | |
764 | p.ts.continue_on_error = cpu_to_le16(ts->continue_on_error); | |
765 | p.ts.total_err_count = cpu_to_le64(ts->total_err_count); | |
ddcc0b69 JA |
766 | p.ts.first_error = cpu_to_le32(ts->first_error); |
767 | p.ts.kb_base = cpu_to_le32(ts->kb_base); | |
a64e88da JA |
768 | |
769 | convert_gs(&p.rs, rs); | |
770 | ||
af9c9fb3 | 771 | fio_net_send_cmd(server_fd, FIO_NET_CMD_TS, &p, sizeof(p), 0); |
a64e88da JA |
772 | } |
773 | ||
774 | void fio_server_send_gs(struct group_run_stats *rs) | |
775 | { | |
776 | struct group_run_stats gs; | |
777 | ||
60efd14e JA |
778 | dprint(FD_NET, "server sending group run stats\n"); |
779 | ||
a64e88da | 780 | convert_gs(&gs, rs); |
af9c9fb3 | 781 | fio_net_send_cmd(server_fd, FIO_NET_CMD_GS, &gs, sizeof(gs), 0); |
cf451d1e JA |
782 | } |
783 | ||
d09a64a0 JA |
784 | static void convert_agg(struct disk_util_agg *dst, struct disk_util_agg *src) |
785 | { | |
786 | int i; | |
787 | ||
788 | for (i = 0; i < 2; i++) { | |
789 | dst->ios[i] = cpu_to_le32(src->ios[i]); | |
790 | dst->merges[i] = cpu_to_le32(src->merges[i]); | |
791 | dst->sectors[i] = cpu_to_le64(src->sectors[i]); | |
792 | dst->ticks[i] = cpu_to_le32(src->ticks[i]); | |
793 | } | |
794 | ||
795 | dst->io_ticks = cpu_to_le32(src->io_ticks); | |
796 | dst->time_in_queue = cpu_to_le32(src->time_in_queue); | |
797 | dst->slavecount = cpu_to_le32(src->slavecount); | |
798 | dst->max_util.u.i = __cpu_to_le64(fio_double_to_uint64(src->max_util.u.f)); | |
799 | } | |
800 | ||
801 | static void convert_dus(struct disk_util_stat *dst, struct disk_util_stat *src) | |
802 | { | |
803 | int i; | |
804 | ||
805 | strcpy((char *) dst->name, (char *) src->name); | |
806 | ||
807 | for (i = 0; i < 2; i++) { | |
808 | dst->ios[i] = cpu_to_le32(src->ios[i]); | |
809 | dst->merges[i] = cpu_to_le32(src->merges[i]); | |
810 | dst->sectors[i] = cpu_to_le64(src->sectors[i]); | |
811 | dst->ticks[i] = cpu_to_le32(src->ticks[i]); | |
812 | } | |
813 | ||
814 | dst->io_ticks = cpu_to_le32(src->io_ticks); | |
815 | dst->time_in_queue = cpu_to_le32(src->time_in_queue); | |
816 | dst->msec = cpu_to_le64(src->msec); | |
817 | } | |
818 | ||
819 | void fio_server_send_du(void) | |
820 | { | |
821 | struct disk_util *du; | |
822 | struct flist_head *entry; | |
823 | struct cmd_du_pdu pdu; | |
824 | ||
825 | dprint(FD_NET, "server: sending disk_util %d\n", !flist_empty(&disk_list)); | |
826 | ||
0766d92e JA |
827 | memset(&pdu, 0, sizeof(pdu)); |
828 | ||
d09a64a0 JA |
829 | flist_for_each(entry, &disk_list) { |
830 | du = flist_entry(entry, struct disk_util, list); | |
831 | ||
832 | convert_dus(&pdu.dus, &du->dus); | |
833 | convert_agg(&pdu.agg, &du->agg); | |
834 | ||
835 | fio_net_send_cmd(server_fd, FIO_NET_CMD_DU, &pdu, sizeof(pdu), 0); | |
836 | } | |
837 | } | |
838 | ||
807f9971 JA |
839 | void fio_server_send_add_job(struct thread_options *o, const char *ioengine) |
840 | { | |
841 | struct cmd_add_job_pdu pdu; | |
807f9971 | 842 | |
dcaeb606 | 843 | convert_thread_options_to_net(&pdu.top, o); |
807f9971 JA |
844 | |
845 | fio_net_send_cmd(server_fd, FIO_NET_CMD_ADD_JOB, &pdu, sizeof(pdu), 0); | |
846 | } | |
847 | ||
87aa8f19 | 848 | static int fio_init_server_ip(void) |
81179eec | 849 | { |
811826be JA |
850 | struct sockaddr *addr; |
851 | fio_socklen_t socklen; | |
87aa8f19 | 852 | int sk, opt; |
81179eec | 853 | |
811826be JA |
854 | if (use_ipv6) |
855 | sk = socket(AF_INET6, SOCK_STREAM, 0); | |
856 | else | |
857 | sk = socket(AF_INET, SOCK_STREAM, 0); | |
858 | ||
81179eec JA |
859 | if (sk < 0) { |
860 | log_err("fio: socket: %s\n", strerror(errno)); | |
861 | return -1; | |
862 | } | |
863 | ||
864 | opt = 1; | |
865 | if (setsockopt(sk, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt)) < 0) { | |
866 | log_err("fio: setsockopt: %s\n", strerror(errno)); | |
b94cba47 | 867 | close(sk); |
81179eec JA |
868 | return -1; |
869 | } | |
870 | #ifdef SO_REUSEPORT | |
6eb24791 | 871 | if (setsockopt(sk, SOL_SOCKET, SO_REUSEPORT, &opt, sizeof(opt)) < 0) { |
81179eec | 872 | log_err("fio: setsockopt: %s\n", strerror(errno)); |
b94cba47 | 873 | close(sk); |
81179eec JA |
874 | return -1; |
875 | } | |
876 | #endif | |
877 | ||
811826be JA |
878 | if (use_ipv6) { |
879 | addr = (struct sockaddr *) &saddr_in6; | |
880 | socklen = sizeof(saddr_in6); | |
881 | saddr_in6.sin6_family = AF_INET6; | |
882 | } else { | |
883 | addr = (struct sockaddr *) &saddr_in; | |
884 | socklen = sizeof(saddr_in); | |
885 | saddr_in.sin_family = AF_INET; | |
886 | } | |
81179eec | 887 | |
811826be | 888 | if (bind(sk, addr, socklen) < 0) { |
81179eec | 889 | log_err("fio: bind: %s\n", strerror(errno)); |
b94cba47 | 890 | close(sk); |
81179eec JA |
891 | return -1; |
892 | } | |
893 | ||
87aa8f19 JA |
894 | return sk; |
895 | } | |
896 | ||
897 | static int fio_init_server_sock(void) | |
898 | { | |
899 | struct sockaddr_un addr; | |
900 | fio_socklen_t len; | |
901 | mode_t mode; | |
902 | int sk; | |
903 | ||
904 | sk = socket(AF_UNIX, SOCK_STREAM, 0); | |
905 | if (sk < 0) { | |
906 | log_err("fio: socket: %s\n", strerror(errno)); | |
907 | return -1; | |
908 | } | |
909 | ||
910 | mode = umask(000); | |
911 | ||
912 | memset(&addr, 0, sizeof(addr)); | |
913 | addr.sun_family = AF_UNIX; | |
914 | strcpy(addr.sun_path, bind_sock); | |
915 | unlink(bind_sock); | |
916 | ||
917 | len = sizeof(addr.sun_family) + strlen(bind_sock) + 1; | |
918 | ||
919 | if (bind(sk, (struct sockaddr *) &addr, len) < 0) { | |
920 | log_err("fio: bind: %s\n", strerror(errno)); | |
b94cba47 | 921 | close(sk); |
87aa8f19 JA |
922 | return -1; |
923 | } | |
924 | ||
925 | umask(mode); | |
926 | return sk; | |
927 | } | |
928 | ||
929 | static int fio_init_server_connection(void) | |
930 | { | |
bebe6398 | 931 | char bind_str[128]; |
87aa8f19 JA |
932 | int sk; |
933 | ||
934 | dprint(FD_NET, "starting server\n"); | |
935 | ||
936 | if (!bind_sock) | |
937 | sk = fio_init_server_ip(); | |
938 | else | |
939 | sk = fio_init_server_sock(); | |
940 | ||
941 | if (sk < 0) | |
942 | return sk; | |
943 | ||
811826be JA |
944 | if (!bind_sock) { |
945 | char *p, port[16]; | |
946 | const void *src; | |
947 | int af; | |
948 | ||
949 | if (use_ipv6) { | |
950 | af = AF_INET6; | |
951 | src = &saddr_in6.sin6_addr; | |
952 | } else { | |
953 | af = AF_INET; | |
954 | src = &saddr_in.sin_addr; | |
955 | } | |
956 | ||
957 | p = (char *) inet_ntop(af, src, bind_str, sizeof(bind_str)); | |
958 | ||
959 | sprintf(port, ",%u", fio_net_port); | |
960 | if (p) | |
961 | strcat(p, port); | |
962 | else | |
963 | strcpy(bind_str, port); | |
964 | } else | |
bebe6398 JA |
965 | strcpy(bind_str, bind_sock); |
966 | ||
967 | log_info("fio: server listening on %s\n", bind_str); | |
968 | ||
89c1707c | 969 | if (listen(sk, 0) < 0) { |
81179eec JA |
970 | log_err("fio: listen: %s\n", strerror(errno)); |
971 | return -1; | |
972 | } | |
973 | ||
87aa8f19 JA |
974 | return sk; |
975 | } | |
976 | ||
3ec62ec4 JA |
977 | int fio_server_parse_host(const char *host, int *ipv6, struct in_addr *inp, |
978 | struct in6_addr *inp6) | |
979 | ||
980 | { | |
981 | int ret = 0; | |
982 | ||
983 | if (*ipv6) | |
984 | ret = inet_pton(AF_INET6, host, inp6); | |
985 | else | |
986 | ret = inet_pton(AF_INET, host, inp); | |
987 | ||
988 | if (ret != 1) { | |
989 | struct hostent *hent; | |
990 | ||
991 | hent = gethostbyname(host); | |
992 | if (!hent) { | |
993 | log_err("fio: failed to resolve <%s>\n", host); | |
994 | return 0; | |
995 | } | |
996 | ||
997 | if (*ipv6) { | |
998 | if (hent->h_addrtype != AF_INET6) { | |
999 | log_info("fio: falling back to IPv4\n"); | |
1000 | *ipv6 = 0; | |
1001 | } else | |
1002 | memcpy(inp6, hent->h_addr_list[0], 16); | |
1003 | } | |
1004 | if (!*ipv6) { | |
1005 | if (hent->h_addrtype != AF_INET) { | |
1006 | log_err("fio: lookup type mismatch\n"); | |
1007 | return 0; | |
1008 | } | |
1009 | memcpy(inp, hent->h_addr_list[0], 4); | |
1010 | } | |
1011 | ret = 1; | |
1012 | } | |
1013 | ||
1014 | return !(ret == 1); | |
1015 | } | |
1016 | ||
660a2bfb JA |
1017 | /* |
1018 | * Parse a host/ip/port string. Reads from 'str'. | |
1019 | * | |
1020 | * Outputs: | |
1021 | * | |
1022 | * For IPv4: | |
1023 | * *ptr is the host, *port is the port, inp is the destination. | |
1024 | * For IPv6: | |
1025 | * *ptr is the host, *port is the port, inp6 is the dest, and *ipv6 is 1. | |
1026 | * For local domain sockets: | |
1027 | * *ptr is the filename, *is_sock is 1. | |
1028 | */ | |
bebe6398 | 1029 | int fio_server_parse_string(const char *str, char **ptr, int *is_sock, |
811826be JA |
1030 | int *port, struct in_addr *inp, |
1031 | struct in6_addr *inp6, int *ipv6) | |
bebe6398 | 1032 | { |
76867621 JA |
1033 | const char *host = str; |
1034 | char *portp; | |
3ec62ec4 | 1035 | int lport = 0; |
76867621 | 1036 | |
bebe6398 JA |
1037 | *ptr = NULL; |
1038 | *is_sock = 0; | |
6d2cf394 | 1039 | *port = fio_net_port; |
811826be | 1040 | *ipv6 = 0; |
bebe6398 JA |
1041 | |
1042 | if (!strncmp(str, "sock:", 5)) { | |
1043 | *ptr = strdup(str + 5); | |
1044 | *is_sock = 1; | |
76867621 JA |
1045 | |
1046 | return 0; | |
1047 | } | |
1048 | ||
1049 | /* | |
1050 | * Is it ip:<ip or host>:port | |
1051 | */ | |
1052 | if (!strncmp(host, "ip:", 3)) | |
1053 | host += 3; | |
1054 | else if (!strncmp(host, "ip4:", 4)) | |
1055 | host += 4; | |
1056 | else if (!strncmp(host, "ip6:", 4)) { | |
1057 | host += 4; | |
1058 | *ipv6 = 1; | |
1059 | } else if (host[0] == ':') { | |
1060 | /* String is :port */ | |
1061 | host++; | |
1062 | lport = atoi(host); | |
1063 | if (!lport || lport > 65535) { | |
1064 | log_err("fio: bad server port %u\n", port); | |
1065 | return 1; | |
1066 | } | |
1067 | /* no hostname given, we are done */ | |
1068 | *port = lport; | |
1069 | return 0; | |
1070 | } | |
1071 | ||
1072 | /* | |
1073 | * If no port seen yet, check if there's a last ':' at the end | |
1074 | */ | |
1075 | if (!lport) { | |
1076 | portp = strchr(host, ','); | |
1077 | if (portp) { | |
1078 | *portp = '\0'; | |
1079 | portp++; | |
1080 | lport = atoi(portp); | |
bebe6398 JA |
1081 | if (!lport || lport > 65535) { |
1082 | log_err("fio: bad server port %u\n", port); | |
1083 | return 1; | |
1084 | } | |
bebe6398 | 1085 | } |
76867621 | 1086 | } |
bebe6398 | 1087 | |
76867621 JA |
1088 | if (lport) |
1089 | *port = lport; | |
bebe6398 | 1090 | |
76867621 JA |
1091 | if (!strlen(host)) |
1092 | return 0; | |
bebe6398 | 1093 | |
76867621 | 1094 | *ptr = strdup(host); |
811826be | 1095 | |
3ec62ec4 JA |
1096 | if (fio_server_parse_host(*ptr, ipv6, inp, inp6)) { |
1097 | free(*ptr); | |
1098 | *ptr = NULL; | |
1099 | return 1; | |
bebe6398 JA |
1100 | } |
1101 | ||
1102 | if (*port == 0) | |
1103 | *port = fio_net_port; | |
1104 | ||
1105 | return 0; | |
1106 | } | |
1107 | ||
87aa8f19 JA |
1108 | /* |
1109 | * Server arg should be one of: | |
1110 | * | |
1111 | * sock:/path/to/socket | |
1112 | * ip:1.2.3.4 | |
1113 | * 1.2.3.4 | |
1114 | * | |
1115 | * Where sock uses unix domain sockets, and ip binds the server to | |
1116 | * a specific interface. If no arguments are given to the server, it | |
1117 | * uses IP and binds to 0.0.0.0. | |
1118 | * | |
1119 | */ | |
1120 | static int fio_handle_server_arg(void) | |
1121 | { | |
6d2cf394 | 1122 | int port = fio_net_port; |
a7de0a11 | 1123 | int is_sock, ret = 0; |
bebe6398 | 1124 | |
87aa8f19 JA |
1125 | saddr_in.sin_addr.s_addr = htonl(INADDR_ANY); |
1126 | ||
1127 | if (!fio_server_arg) | |
a7de0a11 | 1128 | goto out; |
87aa8f19 | 1129 | |
4e5b8fb8 | 1130 | ret = fio_server_parse_string(fio_server_arg, &bind_sock, &is_sock, |
811826be JA |
1131 | &port, &saddr_in.sin_addr, |
1132 | &saddr_in6.sin6_addr, &use_ipv6); | |
4e5b8fb8 JA |
1133 | |
1134 | if (!is_sock && bind_sock) { | |
1135 | free(bind_sock); | |
1136 | bind_sock = NULL; | |
1137 | } | |
1138 | ||
a7de0a11 | 1139 | out: |
6d2cf394 JA |
1140 | fio_net_port = port; |
1141 | saddr_in.sin_port = htons(port); | |
811826be | 1142 | saddr_in6.sin6_port = htons(port); |
4e5b8fb8 | 1143 | return ret; |
87aa8f19 JA |
1144 | } |
1145 | ||
1146 | static int fio_server(void) | |
1147 | { | |
1148 | int sk, ret; | |
1149 | ||
1150 | dprint(FD_NET, "starting server\n"); | |
1151 | ||
1152 | if (fio_handle_server_arg()) | |
1153 | return -1; | |
1154 | ||
1155 | sk = fio_init_server_connection(); | |
1156 | if (sk < 0) | |
1157 | return -1; | |
81179eec JA |
1158 | |
1159 | ret = accept_loop(sk); | |
87aa8f19 | 1160 | |
81179eec | 1161 | close(sk); |
87aa8f19 JA |
1162 | |
1163 | if (fio_server_arg) { | |
1164 | free(fio_server_arg); | |
1165 | fio_server_arg = NULL; | |
1166 | } | |
bebe6398 JA |
1167 | if (bind_sock) |
1168 | free(bind_sock); | |
87aa8f19 | 1169 | |
81179eec JA |
1170 | return ret; |
1171 | } | |
1172 | ||
7b821684 | 1173 | void fio_server_got_signal(int signal) |
9abea48b | 1174 | { |
7b821684 JA |
1175 | if (signal == SIGPIPE) |
1176 | server_fd = -1; | |
1177 | else { | |
1178 | log_info("\nfio: terminating on signal %d\n", signal); | |
1179 | exit_backend = 1; | |
1180 | } | |
9abea48b JA |
1181 | } |
1182 | ||
13755d94 JA |
1183 | static int check_existing_pidfile(const char *pidfile) |
1184 | { | |
1185 | struct stat sb; | |
1186 | char buf[16]; | |
1187 | pid_t pid; | |
1188 | FILE *f; | |
1189 | ||
1190 | if (stat(pidfile, &sb)) | |
1191 | return 0; | |
1192 | ||
1193 | f = fopen(pidfile, "r"); | |
1194 | if (!f) | |
1195 | return 0; | |
1196 | ||
bfc3b179 | 1197 | if (fread(buf, sb.st_size, 1, f) <= 0) { |
13755d94 JA |
1198 | fclose(f); |
1199 | return 1; | |
1200 | } | |
1201 | fclose(f); | |
1202 | ||
1203 | pid = atoi(buf); | |
1204 | if (kill(pid, SIGCONT) < 0) | |
ea5aa1be | 1205 | return errno != ESRCH; |
13755d94 JA |
1206 | |
1207 | return 1; | |
1208 | } | |
1209 | ||
1210 | static int write_pid(pid_t pid, const char *pidfile) | |
402668f3 JA |
1211 | { |
1212 | FILE *fpid; | |
1213 | ||
1214 | fpid = fopen(pidfile, "w"); | |
1215 | if (!fpid) { | |
1216 | log_err("fio: failed opening pid file %s\n", pidfile); | |
13755d94 | 1217 | return 1; |
402668f3 JA |
1218 | } |
1219 | ||
1220 | fprintf(fpid, "%u\n", (unsigned int) pid); | |
13755d94 JA |
1221 | fclose(fpid); |
1222 | return 0; | |
402668f3 JA |
1223 | } |
1224 | ||
1225 | /* | |
1226 | * If pidfile is specified, background us. | |
1227 | */ | |
1228 | int fio_start_server(char *pidfile) | |
e46d8091 JA |
1229 | { |
1230 | pid_t pid; | |
402668f3 | 1231 | int ret; |
e46d8091 | 1232 | |
93bcfd20 BC |
1233 | #if defined(WIN32) |
1234 | WSADATA wsd; | |
1235 | WSAStartup(MAKEWORD(2,2), &wsd); | |
1236 | #endif | |
1237 | ||
402668f3 | 1238 | if (!pidfile) |
e46d8091 JA |
1239 | return fio_server(); |
1240 | ||
13755d94 JA |
1241 | if (check_existing_pidfile(pidfile)) { |
1242 | log_err("fio: pidfile %s exists and server appears alive\n", | |
1243 | pidfile); | |
1244 | return -1; | |
1245 | } | |
1246 | ||
e46d8091 JA |
1247 | pid = fork(); |
1248 | if (pid < 0) { | |
13755d94 | 1249 | log_err("fio: failed server fork: %s", strerror(errno)); |
402668f3 | 1250 | free(pidfile); |
c28e8e8c | 1251 | return -1; |
402668f3 | 1252 | } else if (pid) { |
13755d94 JA |
1253 | int ret = write_pid(pid, pidfile); |
1254 | ||
1255 | exit(ret); | |
402668f3 | 1256 | } |
e46d8091 JA |
1257 | |
1258 | setsid(); | |
13755d94 JA |
1259 | openlog("fio", LOG_NDELAY|LOG_NOWAIT|LOG_PID, LOG_USER); |
1260 | log_syslog = 1; | |
e46d8091 JA |
1261 | close(STDIN_FILENO); |
1262 | close(STDOUT_FILENO); | |
1263 | close(STDERR_FILENO); | |
1264 | f_out = NULL; | |
1265 | f_err = NULL; | |
402668f3 JA |
1266 | |
1267 | ret = fio_server(); | |
1268 | ||
1269 | closelog(); | |
1270 | unlink(pidfile); | |
1271 | free(pidfile); | |
1272 | return ret; | |
e46d8091 | 1273 | } |
87aa8f19 | 1274 | |
bebe6398 | 1275 | void fio_server_set_arg(const char *arg) |
87aa8f19 JA |
1276 | { |
1277 | fio_server_arg = strdup(arg); | |
1278 | } |