Commit | Line | Data |
---|---|---|
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 */ | |
084d1c6f JA |
225 | if (cmdret->pdu_len) { |
226 | if (cmdret->opcode == FIO_NET_CMD_TEXT) { | |
227 | struct cmd_text_pdu *pdu = (struct cmd_text_pdu *) cmdret->payload; | |
228 | char *buf = (char *) pdu->buf; | |
0b8f30a5 | 229 | |
084d1c6f JA |
230 | buf[pdu->buf_len ] = '\0'; |
231 | } else if (cmdret->opcode == FIO_NET_CMD_JOB) { | |
232 | char *buf = (char *) cmdret->payload; | |
233 | ||
234 | buf[cmdret->pdu_len ] = '\0'; | |
235 | } | |
0b8f30a5 | 236 | } |
084d1c6f | 237 | |
0b8f30a5 | 238 | /* frag flag is internal */ |
a64e88da | 239 | cmdret->flags &= ~FIO_NET_CMD_F_MORE; |
0b8f30a5 | 240 | } |
a64e88da JA |
241 | |
242 | return cmdret; | |
132159a5 JA |
243 | } |
244 | ||
245 | void fio_net_cmd_crc(struct fio_net_cmd *cmd) | |
246 | { | |
247 | uint32_t pdu_len; | |
248 | ||
25dfa848 | 249 | cmd->cmd_crc16 = __cpu_to_le16(fio_crc16(cmd, FIO_NET_CMD_CRC_SZ)); |
132159a5 JA |
250 | |
251 | pdu_len = le32_to_cpu(cmd->pdu_len); | |
252 | if (pdu_len) | |
25dfa848 | 253 | cmd->pdu_crc16 = __cpu_to_le16(fio_crc16(cmd->payload, pdu_len)); |
132159a5 JA |
254 | } |
255 | ||
af9c9fb3 JA |
256 | int fio_net_send_cmd(int fd, uint16_t opcode, const void *buf, off_t size, |
257 | uint64_t tag) | |
794d69ca | 258 | { |
7f868316 JA |
259 | struct fio_net_cmd *cmd = NULL; |
260 | size_t this_len, cur_len = 0; | |
794d69ca JA |
261 | int ret; |
262 | ||
263 | do { | |
264 | this_len = size; | |
265 | if (this_len > FIO_SERVER_MAX_PDU) | |
266 | this_len = FIO_SERVER_MAX_PDU; | |
267 | ||
7f868316 JA |
268 | if (!cmd || cur_len < sizeof(*cmd) + this_len) { |
269 | if (cmd) | |
270 | free(cmd); | |
271 | ||
272 | cur_len = sizeof(*cmd) + this_len; | |
273 | cmd = malloc(cur_len); | |
274 | } | |
794d69ca | 275 | |
af9c9fb3 | 276 | fio_init_net_cmd(cmd, opcode, buf, this_len, tag); |
794d69ca JA |
277 | |
278 | if (this_len < size) | |
ddcc0b69 | 279 | cmd->flags = __cpu_to_le32(FIO_NET_CMD_F_MORE); |
794d69ca JA |
280 | |
281 | fio_net_cmd_crc(cmd); | |
282 | ||
283 | ret = fio_send_data(fd, cmd, sizeof(*cmd) + this_len); | |
794d69ca JA |
284 | size -= this_len; |
285 | buf += this_len; | |
286 | } while (!ret && size); | |
287 | ||
7f868316 JA |
288 | if (cmd) |
289 | free(cmd); | |
290 | ||
794d69ca JA |
291 | return ret; |
292 | } | |
293 | ||
89c1707c | 294 | static int fio_net_send_simple_stack_cmd(int sk, uint16_t opcode, uint64_t tag) |
132159a5 | 295 | { |
178cde9f | 296 | struct fio_net_cmd cmd; |
132159a5 | 297 | |
af9c9fb3 | 298 | fio_init_net_cmd(&cmd, opcode, NULL, 0, tag); |
132159a5 JA |
299 | fio_net_cmd_crc(&cmd); |
300 | ||
301 | return fio_send_data(sk, &cmd, sizeof(cmd)); | |
302 | } | |
303 | ||
89c1707c JA |
304 | /* |
305 | * If 'list' is non-NULL, then allocate and store the sent command for | |
306 | * later verification. | |
307 | */ | |
308 | int fio_net_send_simple_cmd(int sk, uint16_t opcode, uint64_t tag, | |
309 | struct flist_head *list) | |
310 | { | |
311 | struct fio_net_int_cmd *cmd; | |
312 | int ret; | |
313 | ||
314 | if (!list) | |
315 | return fio_net_send_simple_stack_cmd(sk, opcode, tag); | |
316 | ||
317 | cmd = malloc(sizeof(*cmd)); | |
318 | ||
df380934 | 319 | fio_init_net_cmd(&cmd->cmd, opcode, NULL, 0, (uintptr_t) cmd); |
89c1707c JA |
320 | fio_net_cmd_crc(&cmd->cmd); |
321 | ||
322 | INIT_FLIST_HEAD(&cmd->list); | |
323 | gettimeofday(&cmd->tv, NULL); | |
324 | cmd->saved_tag = tag; | |
325 | ||
326 | ret = fio_send_data(sk, &cmd->cmd, sizeof(cmd->cmd)); | |
327 | if (ret) { | |
328 | free(cmd); | |
329 | return ret; | |
330 | } | |
331 | ||
332 | flist_add_tail(&cmd->list, list); | |
333 | return 0; | |
334 | } | |
335 | ||
9abea48b | 336 | static int fio_server_send_quit_cmd(void) |
437377e1 | 337 | { |
46c48f1f | 338 | dprint(FD_NET, "server: sending quit\n"); |
89c1707c | 339 | return fio_net_send_simple_cmd(server_fd, FIO_NET_CMD_QUIT, 0, NULL); |
437377e1 JA |
340 | } |
341 | ||
0b8f30a5 | 342 | static int handle_job_cmd(struct fio_net_cmd *cmd) |
132159a5 | 343 | { |
0b8f30a5 | 344 | char *buf = (char *) cmd->payload; |
11e950bd JA |
345 | struct cmd_start_pdu spdu; |
346 | struct cmd_end_pdu epdu; | |
a64e88da | 347 | int ret; |
132159a5 | 348 | |
e6d1c668 JA |
349 | if (parse_jobs_ini(buf, 1, 0)) { |
350 | fio_server_send_quit_cmd(); | |
81179eec | 351 | return -1; |
e6d1c668 | 352 | } |
81179eec | 353 | |
11e950bd JA |
354 | spdu.jobs = cpu_to_le32(thread_number); |
355 | fio_net_send_cmd(server_fd, FIO_NET_CMD_START, &spdu, sizeof(spdu), 0); | |
81179eec | 356 | |
2e1df07d | 357 | ret = fio_backend(); |
11e950bd JA |
358 | |
359 | epdu.error = ret; | |
360 | fio_net_send_cmd(server_fd, FIO_NET_CMD_STOP, &epdu, sizeof(epdu), 0); | |
361 | ||
9abea48b | 362 | fio_server_send_quit_cmd(); |
81179eec | 363 | reset_fio_state(); |
8663ea65 | 364 | first_cmd_check = 0; |
81179eec JA |
365 | return ret; |
366 | } | |
367 | ||
368 | static int handle_jobline_cmd(struct fio_net_cmd *cmd) | |
369 | { | |
fa2ea806 JA |
370 | void *pdu = cmd->payload; |
371 | struct cmd_single_line_pdu *cslp; | |
372 | struct cmd_line_pdu *clp; | |
373 | unsigned long offset; | |
374 | char **argv; | |
81179eec JA |
375 | int ret, i; |
376 | ||
fa2ea806 JA |
377 | clp = pdu; |
378 | clp->lines = le16_to_cpu(clp->lines); | |
379 | argv = malloc(clp->lines * sizeof(char *)); | |
380 | offset = sizeof(*clp); | |
81179eec | 381 | |
fa2ea806 | 382 | dprint(FD_NET, "server: %d command line args\n", clp->lines); |
39e8e016 | 383 | |
fa2ea806 JA |
384 | for (i = 0; i < clp->lines; i++) { |
385 | cslp = pdu + offset; | |
386 | argv[i] = (char *) cslp->text; | |
387 | ||
388 | offset += sizeof(*cslp) + le16_to_cpu(cslp->len); | |
39e8e016 JA |
389 | dprint(FD_NET, "server: %d: %s\n", i, argv[i]); |
390 | } | |
81179eec | 391 | |
fa2ea806 | 392 | if (parse_cmd_line(clp->lines, argv)) { |
e6d1c668 | 393 | fio_server_send_quit_cmd(); |
fa2ea806 | 394 | free(argv); |
81179eec | 395 | return -1; |
e6d1c668 | 396 | } |
81179eec | 397 | |
fa2ea806 JA |
398 | free(argv); |
399 | ||
89c1707c | 400 | fio_net_send_simple_cmd(server_fd, FIO_NET_CMD_START, 0, NULL); |
81179eec | 401 | |
2e1df07d | 402 | ret = fio_backend(); |
9abea48b | 403 | fio_server_send_quit_cmd(); |
794d69ca | 404 | reset_fio_state(); |
8663ea65 | 405 | first_cmd_check = 0; |
132159a5 JA |
406 | return ret; |
407 | } | |
408 | ||
c28e8e8c JA |
409 | static int handle_probe_cmd(struct fio_net_cmd *cmd) |
410 | { | |
411 | struct cmd_probe_pdu probe; | |
412 | ||
89c1707c JA |
413 | dprint(FD_NET, "server: sending probe reply\n"); |
414 | ||
c28e8e8c JA |
415 | memset(&probe, 0, sizeof(probe)); |
416 | gethostname((char *) probe.hostname, sizeof(probe.hostname)); | |
6eb24791 JA |
417 | #ifdef FIO_BIG_ENDIAN |
418 | probe.bigendian = 1; | |
419 | #endif | |
81179eec JA |
420 | probe.fio_major = FIO_MAJOR; |
421 | probe.fio_minor = FIO_MINOR; | |
422 | probe.fio_patch = FIO_PATCH; | |
c28e8e8c | 423 | |
cca84643 JA |
424 | probe.os = FIO_OS; |
425 | probe.arch = FIO_ARCH; | |
426 | ||
38fdef22 JA |
427 | probe.bpp = sizeof(void *); |
428 | ||
89c1707c | 429 | return fio_net_send_cmd(server_fd, FIO_NET_CMD_PROBE, &probe, sizeof(probe), cmd->tag); |
af9c9fb3 JA |
430 | } |
431 | ||
432 | static int handle_send_eta_cmd(struct fio_net_cmd *cmd) | |
433 | { | |
434 | struct jobs_eta *je; | |
435 | size_t size; | |
af9c9fb3 JA |
436 | int i; |
437 | ||
b814fb26 JA |
438 | if (!thread_number) |
439 | return 0; | |
440 | ||
441 | size = sizeof(*je) + thread_number * sizeof(char) + 1; | |
7f868316 JA |
442 | je = malloc(size); |
443 | memset(je, 0, size); | |
af9c9fb3 JA |
444 | |
445 | if (!calc_thread_status(je, 1)) { | |
446 | free(je); | |
447 | return 0; | |
448 | } | |
449 | ||
450 | dprint(FD_NET, "server sending status\n"); | |
451 | ||
452 | je->nr_running = cpu_to_le32(je->nr_running); | |
453 | je->nr_ramp = cpu_to_le32(je->nr_ramp); | |
454 | je->nr_pending = cpu_to_le32(je->nr_pending); | |
455 | je->files_open = cpu_to_le32(je->files_open); | |
af9c9fb3 JA |
456 | |
457 | for (i = 0; i < 2; i++) { | |
3e47bd25 JA |
458 | je->m_rate[i] = cpu_to_le32(je->m_rate[i]); |
459 | je->t_rate[i] = cpu_to_le32(je->t_rate[i]); | |
460 | je->m_iops[i] = cpu_to_le32(je->m_iops[i]); | |
461 | je->t_iops[i] = cpu_to_le32(je->t_iops[i]); | |
af9c9fb3 JA |
462 | je->rate[i] = cpu_to_le32(je->rate[i]); |
463 | je->iops[i] = cpu_to_le32(je->iops[i]); | |
464 | } | |
465 | ||
c1970b90 | 466 | je->elapsed_sec = cpu_to_le64(je->elapsed_sec); |
af9c9fb3 | 467 | je->eta_sec = cpu_to_le64(je->eta_sec); |
8c621fb2 | 468 | je->nr_threads = cpu_to_le32(je->nr_threads); |
af9c9fb3 | 469 | |
7f868316 | 470 | fio_net_send_cmd(server_fd, FIO_NET_CMD_ETA, je, size, cmd->tag); |
af9c9fb3 JA |
471 | free(je); |
472 | return 0; | |
c28e8e8c JA |
473 | } |
474 | ||
132159a5 JA |
475 | static int handle_command(struct fio_net_cmd *cmd) |
476 | { | |
477 | int ret; | |
478 | ||
89c1707c JA |
479 | dprint(FD_NET, "server: got op [%s], pdu=%u, tag=%lx\n", |
480 | fio_server_op(cmd->opcode), cmd->pdu_len, cmd->tag); | |
46c48f1f | 481 | |
132159a5 JA |
482 | switch (cmd->opcode) { |
483 | case FIO_NET_CMD_QUIT: | |
cc0df00a | 484 | fio_terminate_threads(TERMINATE_ALL); |
c28e8e8c | 485 | return -1; |
d7959186 | 486 | case FIO_NET_CMD_EXIT: |
132159a5 | 487 | exit_backend = 1; |
c28e8e8c | 488 | return -1; |
132159a5 | 489 | case FIO_NET_CMD_JOB: |
0b8f30a5 | 490 | ret = handle_job_cmd(cmd); |
132159a5 | 491 | break; |
81179eec JA |
492 | case FIO_NET_CMD_JOBLINE: |
493 | ret = handle_jobline_cmd(cmd); | |
494 | break; | |
c28e8e8c JA |
495 | case FIO_NET_CMD_PROBE: |
496 | ret = handle_probe_cmd(cmd); | |
497 | break; | |
af9c9fb3 JA |
498 | case FIO_NET_CMD_SEND_ETA: |
499 | ret = handle_send_eta_cmd(cmd); | |
500 | break; | |
132159a5 | 501 | default: |
89c1707c | 502 | log_err("fio: unknown opcode: %s\n",fio_server_op(cmd->opcode)); |
132159a5 JA |
503 | ret = 1; |
504 | } | |
505 | ||
506 | return ret; | |
507 | } | |
508 | ||
70e0c316 | 509 | static int handle_connection(int sk, int block) |
132159a5 JA |
510 | { |
511 | struct fio_net_cmd *cmd = NULL; | |
512 | int ret = 0; | |
513 | ||
514 | /* read forever */ | |
515 | while (!exit_backend) { | |
e951bdc4 JA |
516 | struct pollfd pfd = { |
517 | .fd = sk, | |
518 | .events = POLLIN, | |
519 | }; | |
520 | ||
521 | ret = 0; | |
522 | do { | |
523 | ret = poll(&pfd, 1, 100); | |
524 | if (ret < 0) { | |
525 | if (errno == EINTR) | |
526 | break; | |
527 | log_err("fio: poll: %s\n", strerror(errno)); | |
528 | break; | |
19c65179 JA |
529 | } else if (!ret) { |
530 | if (!block) | |
531 | return 0; | |
e951bdc4 | 532 | continue; |
19c65179 | 533 | } |
e951bdc4 JA |
534 | |
535 | if (pfd.revents & POLLIN) | |
536 | break; | |
537 | if (pfd.revents & (POLLERR|POLLHUP)) { | |
538 | ret = 1; | |
539 | break; | |
540 | } | |
19c65179 | 541 | } while (!exit_backend); |
e951bdc4 JA |
542 | |
543 | if (ret < 0) | |
544 | break; | |
545 | ||
546 | cmd = fio_net_recv_cmd(sk); | |
132159a5 | 547 | if (!cmd) { |
c28e8e8c | 548 | ret = -1; |
132159a5 JA |
549 | break; |
550 | } | |
551 | ||
132159a5 JA |
552 | ret = handle_command(cmd); |
553 | if (ret) | |
554 | break; | |
555 | ||
556 | free(cmd); | |
c77a99e7 | 557 | cmd = NULL; |
132159a5 JA |
558 | } |
559 | ||
560 | if (cmd) | |
561 | free(cmd); | |
562 | ||
563 | return ret; | |
564 | } | |
565 | ||
cc0df00a JA |
566 | void fio_server_idle_loop(void) |
567 | { | |
3ec62ec4 | 568 | if (!first_cmd_check) { |
5d7793aa | 569 | fio_net_send_simple_cmd(server_fd, FIO_NET_CMD_SERVER_START, 0, NULL); |
3ec62ec4 JA |
570 | first_cmd_check = 1; |
571 | } | |
cc0df00a | 572 | if (server_fd != -1) |
70e0c316 | 573 | handle_connection(server_fd, 0); |
cc0df00a JA |
574 | } |
575 | ||
50d16976 JA |
576 | static int accept_loop(int listen_sk) |
577 | { | |
bb447a27 | 578 | struct sockaddr_in addr; |
5ba13ea6 | 579 | fio_socklen_t len = sizeof(addr); |
009b1be4 | 580 | struct pollfd pfd; |
132159a5 | 581 | int ret, sk, flags, exitval = 0; |
50d16976 | 582 | |
60efd14e JA |
583 | dprint(FD_NET, "server enter accept loop\n"); |
584 | ||
009b1be4 JA |
585 | flags = fcntl(listen_sk, F_GETFL); |
586 | flags |= O_NONBLOCK; | |
587 | fcntl(listen_sk, F_SETFL, flags); | |
50d16976 | 588 | again: |
009b1be4 JA |
589 | pfd.fd = listen_sk; |
590 | pfd.events = POLLIN; | |
591 | do { | |
592 | ret = poll(&pfd, 1, 100); | |
593 | if (ret < 0) { | |
594 | if (errno == EINTR) | |
595 | break; | |
fcee5ff6 | 596 | log_err("fio: poll: %s\n", strerror(errno)); |
009b1be4 JA |
597 | goto out; |
598 | } else if (!ret) | |
599 | continue; | |
600 | ||
601 | if (pfd.revents & POLLIN) | |
602 | break; | |
603 | } while (!exit_backend); | |
604 | ||
605 | if (exit_backend) | |
606 | goto out; | |
607 | ||
6b976bfc | 608 | sk = accept(listen_sk, (struct sockaddr *) &addr, &len); |
50d16976 | 609 | if (sk < 0) { |
690e09ae | 610 | log_err("fio: accept: %s\n", strerror(errno)); |
50d16976 JA |
611 | return -1; |
612 | } | |
613 | ||
bb447a27 | 614 | dprint(FD_NET, "server: connect from %s\n", inet_ntoa(addr.sin_addr)); |
46c48f1f | 615 | |
37db14fe JA |
616 | server_fd = sk; |
617 | ||
70e0c316 | 618 | exitval = handle_connection(sk, 1); |
50d16976 | 619 | |
37db14fe | 620 | server_fd = -1; |
50d16976 | 621 | close(sk); |
5c341e9a | 622 | |
009b1be4 | 623 | if (!exit_backend) |
5c341e9a JA |
624 | goto again; |
625 | ||
009b1be4 | 626 | out: |
132159a5 | 627 | return exitval; |
50d16976 JA |
628 | } |
629 | ||
084d1c6f | 630 | int fio_server_text_output(int level, const char *buf, size_t len) |
37db14fe | 631 | { |
084d1c6f JA |
632 | struct cmd_text_pdu *pdu; |
633 | unsigned int tlen; | |
634 | struct timeval tv; | |
635 | ||
636 | if (server_fd == -1) | |
637 | return log_local_buf(buf, len); | |
638 | ||
639 | tlen = sizeof(*pdu) + len; | |
640 | pdu = malloc(tlen); | |
641 | ||
642 | pdu->level = __cpu_to_le32(level); | |
643 | pdu->buf_len = __cpu_to_le32(len); | |
644 | ||
645 | gettimeofday(&tv, NULL); | |
646 | pdu->log_sec = __cpu_to_le64(tv.tv_sec); | |
647 | pdu->log_usec = __cpu_to_le64(tv.tv_usec); | |
337d75a8 | 648 | |
084d1c6f JA |
649 | memcpy(pdu->buf, buf, len); |
650 | ||
651 | fio_net_send_cmd(server_fd, FIO_NET_CMD_TEXT, pdu, tlen, 0); | |
652 | free(pdu); | |
653 | return len; | |
142575e6 JA |
654 | } |
655 | ||
a64e88da JA |
656 | static void convert_io_stat(struct io_stat *dst, struct io_stat *src) |
657 | { | |
658 | dst->max_val = cpu_to_le64(src->max_val); | |
659 | dst->min_val = cpu_to_le64(src->min_val); | |
660 | dst->samples = cpu_to_le64(src->samples); | |
802ad4a8 JA |
661 | |
662 | /* | |
663 | * Encode to IEEE 754 for network transfer | |
664 | */ | |
665 | dst->mean.u.i = __cpu_to_le64(fio_double_to_uint64(src->mean.u.f)); | |
666 | dst->S.u.i = __cpu_to_le64(fio_double_to_uint64(src->S.u.f)); | |
a64e88da JA |
667 | } |
668 | ||
669 | static void convert_gs(struct group_run_stats *dst, struct group_run_stats *src) | |
670 | { | |
671 | int i; | |
672 | ||
673 | for (i = 0; i < 2; i++) { | |
674 | dst->max_run[i] = cpu_to_le64(src->max_run[i]); | |
675 | dst->min_run[i] = cpu_to_le64(src->min_run[i]); | |
676 | dst->max_bw[i] = cpu_to_le64(src->max_bw[i]); | |
677 | dst->min_bw[i] = cpu_to_le64(src->min_bw[i]); | |
678 | dst->io_kb[i] = cpu_to_le64(src->io_kb[i]); | |
679 | dst->agg[i] = cpu_to_le64(src->agg[i]); | |
680 | } | |
681 | ||
682 | dst->kb_base = cpu_to_le32(src->kb_base); | |
683 | dst->groupid = cpu_to_le32(src->groupid); | |
684 | } | |
685 | ||
686 | /* | |
687 | * Send a CMD_TS, which packs struct thread_stat and group_run_stats | |
688 | * into a single payload. | |
689 | */ | |
690 | void fio_server_send_ts(struct thread_stat *ts, struct group_run_stats *rs) | |
691 | { | |
692 | struct cmd_ts_pdu p; | |
693 | int i, j; | |
694 | ||
60efd14e JA |
695 | dprint(FD_NET, "server sending end stats\n"); |
696 | ||
317b3c8b JA |
697 | memset(&p, 0, sizeof(p)); |
698 | ||
a64e88da JA |
699 | strcpy(p.ts.name, ts->name); |
700 | strcpy(p.ts.verror, ts->verror); | |
701 | strcpy(p.ts.description, ts->description); | |
702 | ||
ddcc0b69 | 703 | p.ts.error = cpu_to_le32(ts->error); |
a64e88da | 704 | p.ts.groupid = cpu_to_le32(ts->groupid); |
ddcc0b69 | 705 | p.ts.pid = cpu_to_le32(ts->pid); |
a64e88da JA |
706 | p.ts.members = cpu_to_le32(ts->members); |
707 | ||
708 | for (i = 0; i < 2; i++) { | |
709 | convert_io_stat(&p.ts.clat_stat[i], &ts->clat_stat[i]); | |
710 | convert_io_stat(&p.ts.slat_stat[i], &ts->slat_stat[i]); | |
711 | convert_io_stat(&p.ts.lat_stat[i], &ts->lat_stat[i]); | |
712 | convert_io_stat(&p.ts.bw_stat[i], &ts->bw_stat[i]); | |
713 | } | |
714 | ||
715 | p.ts.usr_time = cpu_to_le64(ts->usr_time); | |
716 | p.ts.sys_time = cpu_to_le64(ts->sys_time); | |
717 | p.ts.ctx = cpu_to_le64(ts->ctx); | |
718 | p.ts.minf = cpu_to_le64(ts->minf); | |
719 | p.ts.majf = cpu_to_le64(ts->majf); | |
720 | p.ts.clat_percentiles = cpu_to_le64(ts->clat_percentiles); | |
802ad4a8 JA |
721 | |
722 | for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) { | |
cfc03e46 JA |
723 | fio_fp64_t *src = &ts->percentile_list[i]; |
724 | fio_fp64_t *dst = &p.ts.percentile_list[i]; | |
802ad4a8 | 725 | |
cfc03e46 | 726 | dst->u.i = __cpu_to_le64(fio_double_to_uint64(src->u.f)); |
802ad4a8 | 727 | } |
a64e88da JA |
728 | |
729 | for (i = 0; i < FIO_IO_U_MAP_NR; i++) { | |
730 | p.ts.io_u_map[i] = cpu_to_le32(ts->io_u_map[i]); | |
731 | p.ts.io_u_submit[i] = cpu_to_le32(ts->io_u_submit[i]); | |
732 | p.ts.io_u_complete[i] = cpu_to_le32(ts->io_u_complete[i]); | |
733 | } | |
734 | ||
735 | for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) { | |
736 | p.ts.io_u_lat_u[i] = cpu_to_le32(ts->io_u_lat_u[i]); | |
737 | p.ts.io_u_lat_m[i] = cpu_to_le32(ts->io_u_lat_m[i]); | |
738 | } | |
739 | ||
740 | for (i = 0; i < 2; i++) | |
741 | for (j = 0; j < FIO_IO_U_PLAT_NR; j++) | |
742 | p.ts.io_u_plat[i][j] = cpu_to_le32(ts->io_u_plat[i][j]); | |
743 | ||
744 | for (i = 0; i < 3; i++) { | |
745 | p.ts.total_io_u[i] = cpu_to_le64(ts->total_io_u[i]); | |
93eee04a | 746 | p.ts.short_io_u[i] = cpu_to_le64(ts->short_io_u[i]); |
a64e88da JA |
747 | } |
748 | ||
93eee04a | 749 | p.ts.total_submit = cpu_to_le64(ts->total_submit); |
a64e88da JA |
750 | p.ts.total_complete = cpu_to_le64(ts->total_complete); |
751 | ||
752 | for (i = 0; i < 2; i++) { | |
753 | p.ts.io_bytes[i] = cpu_to_le64(ts->io_bytes[i]); | |
754 | p.ts.runtime[i] = cpu_to_le64(ts->runtime[i]); | |
755 | } | |
756 | ||
757 | p.ts.total_run_time = cpu_to_le64(ts->total_run_time); | |
758 | p.ts.continue_on_error = cpu_to_le16(ts->continue_on_error); | |
759 | p.ts.total_err_count = cpu_to_le64(ts->total_err_count); | |
ddcc0b69 JA |
760 | p.ts.first_error = cpu_to_le32(ts->first_error); |
761 | p.ts.kb_base = cpu_to_le32(ts->kb_base); | |
a64e88da JA |
762 | |
763 | convert_gs(&p.rs, rs); | |
764 | ||
af9c9fb3 | 765 | fio_net_send_cmd(server_fd, FIO_NET_CMD_TS, &p, sizeof(p), 0); |
a64e88da JA |
766 | } |
767 | ||
768 | void fio_server_send_gs(struct group_run_stats *rs) | |
769 | { | |
770 | struct group_run_stats gs; | |
771 | ||
60efd14e JA |
772 | dprint(FD_NET, "server sending group run stats\n"); |
773 | ||
a64e88da | 774 | convert_gs(&gs, rs); |
af9c9fb3 | 775 | fio_net_send_cmd(server_fd, FIO_NET_CMD_GS, &gs, sizeof(gs), 0); |
cf451d1e JA |
776 | } |
777 | ||
d09a64a0 JA |
778 | static void convert_agg(struct disk_util_agg *dst, struct disk_util_agg *src) |
779 | { | |
780 | int i; | |
781 | ||
782 | for (i = 0; i < 2; i++) { | |
783 | dst->ios[i] = cpu_to_le32(src->ios[i]); | |
784 | dst->merges[i] = cpu_to_le32(src->merges[i]); | |
785 | dst->sectors[i] = cpu_to_le64(src->sectors[i]); | |
786 | dst->ticks[i] = cpu_to_le32(src->ticks[i]); | |
787 | } | |
788 | ||
789 | dst->io_ticks = cpu_to_le32(src->io_ticks); | |
790 | dst->time_in_queue = cpu_to_le32(src->time_in_queue); | |
791 | dst->slavecount = cpu_to_le32(src->slavecount); | |
792 | dst->max_util.u.i = __cpu_to_le64(fio_double_to_uint64(src->max_util.u.f)); | |
793 | } | |
794 | ||
795 | static void convert_dus(struct disk_util_stat *dst, struct disk_util_stat *src) | |
796 | { | |
797 | int i; | |
798 | ||
799 | strcpy((char *) dst->name, (char *) src->name); | |
800 | ||
801 | for (i = 0; i < 2; i++) { | |
802 | dst->ios[i] = cpu_to_le32(src->ios[i]); | |
803 | dst->merges[i] = cpu_to_le32(src->merges[i]); | |
804 | dst->sectors[i] = cpu_to_le64(src->sectors[i]); | |
805 | dst->ticks[i] = cpu_to_le32(src->ticks[i]); | |
806 | } | |
807 | ||
808 | dst->io_ticks = cpu_to_le32(src->io_ticks); | |
809 | dst->time_in_queue = cpu_to_le32(src->time_in_queue); | |
810 | dst->msec = cpu_to_le64(src->msec); | |
811 | } | |
812 | ||
813 | void fio_server_send_du(void) | |
814 | { | |
815 | struct disk_util *du; | |
816 | struct flist_head *entry; | |
817 | struct cmd_du_pdu pdu; | |
818 | ||
819 | dprint(FD_NET, "server: sending disk_util %d\n", !flist_empty(&disk_list)); | |
820 | ||
0766d92e JA |
821 | memset(&pdu, 0, sizeof(pdu)); |
822 | ||
d09a64a0 JA |
823 | flist_for_each(entry, &disk_list) { |
824 | du = flist_entry(entry, struct disk_util, list); | |
825 | ||
826 | convert_dus(&pdu.dus, &du->dus); | |
827 | convert_agg(&pdu.agg, &du->agg); | |
828 | ||
829 | fio_net_send_cmd(server_fd, FIO_NET_CMD_DU, &pdu, sizeof(pdu), 0); | |
830 | } | |
831 | } | |
832 | ||
807f9971 JA |
833 | void fio_server_send_add_job(struct thread_options *o, const char *ioengine) |
834 | { | |
835 | struct cmd_add_job_pdu pdu; | |
807f9971 | 836 | |
dcaeb606 | 837 | convert_thread_options_to_net(&pdu.top, o); |
807f9971 JA |
838 | |
839 | fio_net_send_cmd(server_fd, FIO_NET_CMD_ADD_JOB, &pdu, sizeof(pdu), 0); | |
840 | } | |
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 | } |