Commit | Line | Data |
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50d16976 JA |
1 | #include <stdio.h> |
2 | #include <stdlib.h> | |
142575e6 | 3 | #include <stdarg.h> |
50d16976 JA |
4 | #include <unistd.h> |
5 | #include <limits.h> | |
50d16976 JA |
6 | #include <errno.h> |
7 | #include <fcntl.h> | |
8 | #include <sys/poll.h> | |
50d16976 JA |
9 | #include <sys/types.h> |
10 | #include <sys/wait.h> | |
d05c4a03 | 11 | #include <sys/socket.h> |
87aa8f19 JA |
12 | #include <sys/stat.h> |
13 | #include <sys/un.h> | |
50d16976 JA |
14 | #include <netinet/in.h> |
15 | #include <arpa/inet.h> | |
16 | #include <netdb.h> | |
e46d8091 | 17 | #include <syslog.h> |
9e22ecb0 | 18 | #include <signal.h> |
50d16976 JA |
19 | |
20 | #include "fio.h" | |
132159a5 | 21 | #include "server.h" |
fcee5ff6 | 22 | #include "crc/crc16.h" |
802ad4a8 | 23 | #include "ieee754.h" |
89cf1480 JA |
24 | |
25 | #include "fio_version.h" | |
50d16976 | 26 | |
132159a5 | 27 | int fio_net_port = 8765; |
50d16976 | 28 | |
009b1be4 JA |
29 | int exit_backend = 0; |
30 | ||
46c48f1f | 31 | static int server_fd = -1; |
87aa8f19 JA |
32 | static char *fio_server_arg; |
33 | static char *bind_sock; | |
34 | static struct sockaddr_in saddr_in; | |
37db14fe | 35 | |
89c1707c JA |
36 | static const char *fio_server_ops[FIO_NET_CMD_NR] = { |
37 | "", | |
38 | "QUIT", | |
39 | "EXIT", | |
40 | "JOB", | |
41 | "JOBLINE", | |
42 | "TEXT", | |
43 | "TS", | |
44 | "GS", | |
45 | "SEND_ETA", | |
46 | "ETA", | |
47 | "PROBE", | |
48 | "START", | |
49 | "STOP" | |
50 | }; | |
51 | ||
52 | const char *fio_server_op(unsigned int op) | |
53 | { | |
54 | static char buf[32]; | |
55 | ||
56 | if (op < FIO_NET_CMD_NR) | |
57 | return fio_server_ops[op]; | |
58 | ||
59 | sprintf(buf, "UNKNOWN/%d", op); | |
60 | return buf; | |
61 | } | |
62 | ||
132159a5 JA |
63 | int fio_send_data(int sk, const void *p, unsigned int len) |
64 | { | |
794d69ca JA |
65 | assert(len <= sizeof(struct fio_net_cmd) + FIO_SERVER_MAX_PDU); |
66 | ||
132159a5 JA |
67 | do { |
68 | int ret = send(sk, p, len, 0); | |
69 | ||
70 | if (ret > 0) { | |
71 | len -= ret; | |
72 | if (!len) | |
73 | break; | |
74 | p += ret; | |
75 | continue; | |
76 | } else if (!ret) | |
77 | break; | |
78 | else if (errno == EAGAIN || errno == EINTR) | |
79 | continue; | |
80 | } while (!exit_backend); | |
81 | ||
82 | if (!len) | |
83 | return 0; | |
84 | ||
85 | return 1; | |
86 | } | |
87 | ||
88 | int fio_recv_data(int sk, void *p, unsigned int len) | |
89 | { | |
90 | do { | |
91 | int ret = recv(sk, p, len, MSG_WAITALL); | |
92 | ||
93 | if (ret > 0) { | |
94 | len -= ret; | |
95 | if (!len) | |
96 | break; | |
97 | p += ret; | |
98 | continue; | |
99 | } else if (!ret) | |
100 | break; | |
101 | else if (errno == EAGAIN || errno == EINTR) | |
102 | continue; | |
103 | } while (!exit_backend); | |
104 | ||
105 | if (!len) | |
106 | return 0; | |
107 | ||
108 | return -1; | |
109 | } | |
110 | ||
111 | static int verify_convert_cmd(struct fio_net_cmd *cmd) | |
112 | { | |
fcee5ff6 | 113 | uint16_t crc; |
132159a5 | 114 | |
fcee5ff6 JA |
115 | cmd->cmd_crc16 = le16_to_cpu(cmd->cmd_crc16); |
116 | cmd->pdu_crc16 = le16_to_cpu(cmd->pdu_crc16); | |
132159a5 | 117 | |
fcee5ff6 JA |
118 | crc = crc16(cmd, FIO_NET_CMD_CRC_SZ); |
119 | if (crc != cmd->cmd_crc16) { | |
132159a5 | 120 | log_err("fio: server bad crc on command (got %x, wanted %x)\n", |
fcee5ff6 | 121 | cmd->cmd_crc16, crc); |
132159a5 JA |
122 | return 1; |
123 | } | |
124 | ||
125 | cmd->version = le16_to_cpu(cmd->version); | |
126 | cmd->opcode = le16_to_cpu(cmd->opcode); | |
127 | cmd->flags = le32_to_cpu(cmd->flags); | |
af9c9fb3 | 128 | cmd->tag = le64_to_cpu(cmd->tag); |
132159a5 JA |
129 | cmd->pdu_len = le32_to_cpu(cmd->pdu_len); |
130 | ||
131 | switch (cmd->version) { | |
fa2ea806 | 132 | case FIO_SERVER_VER: |
132159a5 JA |
133 | break; |
134 | default: | |
135 | log_err("fio: bad server cmd version %d\n", cmd->version); | |
136 | return 1; | |
137 | } | |
138 | ||
139 | if (cmd->pdu_len > FIO_SERVER_MAX_PDU) { | |
140 | log_err("fio: command payload too large: %u\n", cmd->pdu_len); | |
141 | return 1; | |
142 | } | |
143 | ||
144 | return 0; | |
145 | } | |
146 | ||
a64e88da JA |
147 | /* |
148 | * Read (and defragment, if necessary) incoming commands | |
149 | */ | |
e951bdc4 | 150 | struct fio_net_cmd *fio_net_recv_cmd(int sk) |
132159a5 | 151 | { |
a64e88da JA |
152 | struct fio_net_cmd cmd, *cmdret = NULL; |
153 | size_t cmd_size = 0, pdu_offset = 0; | |
fcee5ff6 | 154 | uint16_t crc; |
a64e88da JA |
155 | int ret, first = 1; |
156 | void *pdu = NULL; | |
132159a5 | 157 | |
a64e88da JA |
158 | do { |
159 | ret = fio_recv_data(sk, &cmd, sizeof(cmd)); | |
160 | if (ret) | |
161 | break; | |
132159a5 | 162 | |
a64e88da JA |
163 | /* We have a command, verify it and swap if need be */ |
164 | ret = verify_convert_cmd(&cmd); | |
165 | if (ret) | |
166 | break; | |
132159a5 | 167 | |
0b8f30a5 JA |
168 | if (first) { |
169 | /* if this is text, add room for \0 at the end */ | |
170 | cmd_size = sizeof(cmd) + cmd.pdu_len + 1; | |
171 | assert(!cmdret); | |
172 | } else | |
a64e88da | 173 | cmd_size += cmd.pdu_len; |
132159a5 | 174 | |
a64e88da | 175 | cmdret = realloc(cmdret, cmd_size); |
132159a5 | 176 | |
a64e88da JA |
177 | if (first) |
178 | memcpy(cmdret, &cmd, sizeof(cmd)); | |
179 | else | |
180 | assert(cmdret->opcode == cmd.opcode); | |
181 | ||
182 | if (!cmd.pdu_len) | |
183 | break; | |
184 | ||
185 | /* There's payload, get it */ | |
186 | pdu = (void *) cmdret->payload + pdu_offset; | |
187 | ret = fio_recv_data(sk, pdu, cmd.pdu_len); | |
188 | if (ret) | |
189 | break; | |
190 | ||
191 | /* Verify payload crc */ | |
192 | crc = crc16(pdu, cmd.pdu_len); | |
193 | if (crc != cmd.pdu_crc16) { | |
194 | log_err("fio: server bad crc on payload "); | |
195 | log_err("(got %x, wanted %x)\n", cmd.pdu_crc16, crc); | |
196 | ret = 1; | |
197 | break; | |
198 | } | |
199 | ||
200 | pdu_offset += cmd.pdu_len; | |
817f06bb JA |
201 | if (!first) |
202 | cmdret->pdu_len += cmd.pdu_len; | |
a64e88da JA |
203 | first = 0; |
204 | } while (cmd.flags & FIO_NET_CMD_F_MORE); | |
132159a5 | 205 | |
a64e88da JA |
206 | if (ret) { |
207 | free(cmdret); | |
208 | cmdret = NULL; | |
0b8f30a5 JA |
209 | } else if (cmdret) { |
210 | /* zero-terminate text input */ | |
211 | if (cmdret->pdu_len && (cmdret->opcode == FIO_NET_CMD_TEXT || | |
212 | cmdret->opcode == FIO_NET_CMD_JOB)) { | |
213 | char *buf = (char *) cmdret->payload; | |
214 | ||
215 | buf[cmdret->pdu_len ] = '\0'; | |
216 | } | |
217 | /* frag flag is internal */ | |
a64e88da | 218 | cmdret->flags &= ~FIO_NET_CMD_F_MORE; |
0b8f30a5 | 219 | } |
a64e88da JA |
220 | |
221 | return cmdret; | |
132159a5 JA |
222 | } |
223 | ||
224 | void fio_net_cmd_crc(struct fio_net_cmd *cmd) | |
225 | { | |
226 | uint32_t pdu_len; | |
227 | ||
ddcc0b69 | 228 | cmd->cmd_crc16 = __cpu_to_le16(crc16(cmd, FIO_NET_CMD_CRC_SZ)); |
132159a5 JA |
229 | |
230 | pdu_len = le32_to_cpu(cmd->pdu_len); | |
231 | if (pdu_len) | |
ddcc0b69 | 232 | cmd->pdu_crc16 = __cpu_to_le16(crc16(cmd->payload, pdu_len)); |
132159a5 JA |
233 | } |
234 | ||
af9c9fb3 JA |
235 | int fio_net_send_cmd(int fd, uint16_t opcode, const void *buf, off_t size, |
236 | uint64_t tag) | |
794d69ca | 237 | { |
7f868316 JA |
238 | struct fio_net_cmd *cmd = NULL; |
239 | size_t this_len, cur_len = 0; | |
794d69ca JA |
240 | int ret; |
241 | ||
242 | do { | |
243 | this_len = size; | |
244 | if (this_len > FIO_SERVER_MAX_PDU) | |
245 | this_len = FIO_SERVER_MAX_PDU; | |
246 | ||
7f868316 JA |
247 | if (!cmd || cur_len < sizeof(*cmd) + this_len) { |
248 | if (cmd) | |
249 | free(cmd); | |
250 | ||
251 | cur_len = sizeof(*cmd) + this_len; | |
252 | cmd = malloc(cur_len); | |
253 | } | |
794d69ca | 254 | |
af9c9fb3 | 255 | fio_init_net_cmd(cmd, opcode, buf, this_len, tag); |
794d69ca JA |
256 | |
257 | if (this_len < size) | |
ddcc0b69 | 258 | cmd->flags = __cpu_to_le32(FIO_NET_CMD_F_MORE); |
794d69ca JA |
259 | |
260 | fio_net_cmd_crc(cmd); | |
261 | ||
262 | ret = fio_send_data(fd, cmd, sizeof(*cmd) + this_len); | |
794d69ca JA |
263 | size -= this_len; |
264 | buf += this_len; | |
265 | } while (!ret && size); | |
266 | ||
7f868316 JA |
267 | if (cmd) |
268 | free(cmd); | |
269 | ||
794d69ca JA |
270 | return ret; |
271 | } | |
272 | ||
89c1707c | 273 | static int fio_net_send_simple_stack_cmd(int sk, uint16_t opcode, uint64_t tag) |
132159a5 | 274 | { |
178cde9f | 275 | struct fio_net_cmd cmd; |
132159a5 | 276 | |
af9c9fb3 | 277 | fio_init_net_cmd(&cmd, opcode, NULL, 0, tag); |
132159a5 JA |
278 | fio_net_cmd_crc(&cmd); |
279 | ||
280 | return fio_send_data(sk, &cmd, sizeof(cmd)); | |
281 | } | |
282 | ||
89c1707c JA |
283 | /* |
284 | * If 'list' is non-NULL, then allocate and store the sent command for | |
285 | * later verification. | |
286 | */ | |
287 | int fio_net_send_simple_cmd(int sk, uint16_t opcode, uint64_t tag, | |
288 | struct flist_head *list) | |
289 | { | |
290 | struct fio_net_int_cmd *cmd; | |
291 | int ret; | |
292 | ||
293 | if (!list) | |
294 | return fio_net_send_simple_stack_cmd(sk, opcode, tag); | |
295 | ||
296 | cmd = malloc(sizeof(*cmd)); | |
297 | ||
298 | fio_init_net_cmd(&cmd->cmd, opcode, NULL, 0, (uint64_t) cmd); | |
299 | fio_net_cmd_crc(&cmd->cmd); | |
300 | ||
301 | INIT_FLIST_HEAD(&cmd->list); | |
302 | gettimeofday(&cmd->tv, NULL); | |
303 | cmd->saved_tag = tag; | |
304 | ||
305 | ret = fio_send_data(sk, &cmd->cmd, sizeof(cmd->cmd)); | |
306 | if (ret) { | |
307 | free(cmd); | |
308 | return ret; | |
309 | } | |
310 | ||
311 | flist_add_tail(&cmd->list, list); | |
312 | return 0; | |
313 | } | |
314 | ||
9abea48b | 315 | static int fio_server_send_quit_cmd(void) |
437377e1 | 316 | { |
46c48f1f | 317 | dprint(FD_NET, "server: sending quit\n"); |
89c1707c | 318 | return fio_net_send_simple_cmd(server_fd, FIO_NET_CMD_QUIT, 0, NULL); |
437377e1 JA |
319 | } |
320 | ||
0b8f30a5 | 321 | static int handle_job_cmd(struct fio_net_cmd *cmd) |
132159a5 | 322 | { |
0b8f30a5 | 323 | char *buf = (char *) cmd->payload; |
a64e88da | 324 | int ret; |
132159a5 | 325 | |
e6d1c668 JA |
326 | if (parse_jobs_ini(buf, 1, 0)) { |
327 | fio_server_send_quit_cmd(); | |
81179eec | 328 | return -1; |
e6d1c668 | 329 | } |
81179eec | 330 | |
89c1707c | 331 | fio_net_send_simple_cmd(server_fd, FIO_NET_CMD_START, 0, NULL); |
81179eec JA |
332 | |
333 | ret = exec_run(); | |
9abea48b | 334 | fio_server_send_quit_cmd(); |
81179eec JA |
335 | reset_fio_state(); |
336 | return ret; | |
337 | } | |
338 | ||
339 | static int handle_jobline_cmd(struct fio_net_cmd *cmd) | |
340 | { | |
fa2ea806 JA |
341 | void *pdu = cmd->payload; |
342 | struct cmd_single_line_pdu *cslp; | |
343 | struct cmd_line_pdu *clp; | |
344 | unsigned long offset; | |
345 | char **argv; | |
81179eec JA |
346 | int ret, i; |
347 | ||
fa2ea806 JA |
348 | clp = pdu; |
349 | clp->lines = le16_to_cpu(clp->lines); | |
350 | argv = malloc(clp->lines * sizeof(char *)); | |
351 | offset = sizeof(*clp); | |
81179eec | 352 | |
fa2ea806 | 353 | dprint(FD_NET, "server: %d command line args\n", clp->lines); |
39e8e016 | 354 | |
fa2ea806 JA |
355 | for (i = 0; i < clp->lines; i++) { |
356 | cslp = pdu + offset; | |
357 | argv[i] = (char *) cslp->text; | |
358 | ||
359 | offset += sizeof(*cslp) + le16_to_cpu(cslp->len); | |
39e8e016 JA |
360 | dprint(FD_NET, "server: %d: %s\n", i, argv[i]); |
361 | } | |
81179eec | 362 | |
fa2ea806 | 363 | if (parse_cmd_line(clp->lines, argv)) { |
e6d1c668 | 364 | fio_server_send_quit_cmd(); |
fa2ea806 | 365 | free(argv); |
81179eec | 366 | return -1; |
e6d1c668 | 367 | } |
81179eec | 368 | |
fa2ea806 JA |
369 | free(argv); |
370 | ||
89c1707c | 371 | fio_net_send_simple_cmd(server_fd, FIO_NET_CMD_START, 0, NULL); |
81179eec | 372 | |
794d69ca | 373 | ret = exec_run(); |
9abea48b | 374 | fio_server_send_quit_cmd(); |
794d69ca | 375 | reset_fio_state(); |
132159a5 JA |
376 | return ret; |
377 | } | |
378 | ||
c28e8e8c JA |
379 | static int handle_probe_cmd(struct fio_net_cmd *cmd) |
380 | { | |
381 | struct cmd_probe_pdu probe; | |
382 | ||
89c1707c JA |
383 | dprint(FD_NET, "server: sending probe reply\n"); |
384 | ||
c28e8e8c JA |
385 | memset(&probe, 0, sizeof(probe)); |
386 | gethostname((char *) probe.hostname, sizeof(probe.hostname)); | |
6eb24791 JA |
387 | #ifdef FIO_BIG_ENDIAN |
388 | probe.bigendian = 1; | |
389 | #endif | |
81179eec JA |
390 | probe.fio_major = FIO_MAJOR; |
391 | probe.fio_minor = FIO_MINOR; | |
392 | probe.fio_patch = FIO_PATCH; | |
c28e8e8c | 393 | |
cca84643 JA |
394 | probe.os = FIO_OS; |
395 | probe.arch = FIO_ARCH; | |
396 | ||
89c1707c | 397 | return fio_net_send_cmd(server_fd, FIO_NET_CMD_PROBE, &probe, sizeof(probe), cmd->tag); |
af9c9fb3 JA |
398 | } |
399 | ||
400 | static int handle_send_eta_cmd(struct fio_net_cmd *cmd) | |
401 | { | |
402 | struct jobs_eta *je; | |
403 | size_t size; | |
af9c9fb3 JA |
404 | int i; |
405 | ||
406 | size = sizeof(*je) + thread_number * sizeof(char); | |
7f868316 JA |
407 | je = malloc(size); |
408 | memset(je, 0, size); | |
af9c9fb3 JA |
409 | |
410 | if (!calc_thread_status(je, 1)) { | |
411 | free(je); | |
412 | return 0; | |
413 | } | |
414 | ||
415 | dprint(FD_NET, "server sending status\n"); | |
416 | ||
417 | je->nr_running = cpu_to_le32(je->nr_running); | |
418 | je->nr_ramp = cpu_to_le32(je->nr_ramp); | |
419 | je->nr_pending = cpu_to_le32(je->nr_pending); | |
420 | je->files_open = cpu_to_le32(je->files_open); | |
421 | je->m_rate = cpu_to_le32(je->m_rate); | |
422 | je->t_rate = cpu_to_le32(je->t_rate); | |
423 | je->m_iops = cpu_to_le32(je->m_iops); | |
424 | je->t_iops = cpu_to_le32(je->t_iops); | |
425 | ||
426 | for (i = 0; i < 2; i++) { | |
427 | je->rate[i] = cpu_to_le32(je->rate[i]); | |
428 | je->iops[i] = cpu_to_le32(je->iops[i]); | |
429 | } | |
430 | ||
431 | je->elapsed_sec = cpu_to_le32(je->nr_running); | |
432 | je->eta_sec = cpu_to_le64(je->eta_sec); | |
433 | ||
7f868316 | 434 | fio_net_send_cmd(server_fd, FIO_NET_CMD_ETA, je, size, cmd->tag); |
af9c9fb3 JA |
435 | free(je); |
436 | return 0; | |
c28e8e8c JA |
437 | } |
438 | ||
132159a5 JA |
439 | static int handle_command(struct fio_net_cmd *cmd) |
440 | { | |
441 | int ret; | |
442 | ||
89c1707c JA |
443 | dprint(FD_NET, "server: got op [%s], pdu=%u, tag=%lx\n", |
444 | fio_server_op(cmd->opcode), cmd->pdu_len, cmd->tag); | |
46c48f1f | 445 | |
132159a5 JA |
446 | switch (cmd->opcode) { |
447 | case FIO_NET_CMD_QUIT: | |
cc0df00a | 448 | fio_terminate_threads(TERMINATE_ALL); |
c28e8e8c | 449 | return -1; |
d7959186 | 450 | case FIO_NET_CMD_EXIT: |
132159a5 | 451 | exit_backend = 1; |
c28e8e8c | 452 | return -1; |
132159a5 | 453 | case FIO_NET_CMD_JOB: |
0b8f30a5 | 454 | ret = handle_job_cmd(cmd); |
132159a5 | 455 | break; |
81179eec JA |
456 | case FIO_NET_CMD_JOBLINE: |
457 | ret = handle_jobline_cmd(cmd); | |
458 | break; | |
c28e8e8c JA |
459 | case FIO_NET_CMD_PROBE: |
460 | ret = handle_probe_cmd(cmd); | |
461 | break; | |
af9c9fb3 JA |
462 | case FIO_NET_CMD_SEND_ETA: |
463 | ret = handle_send_eta_cmd(cmd); | |
464 | break; | |
132159a5 | 465 | default: |
89c1707c | 466 | log_err("fio: unknown opcode: %s\n",fio_server_op(cmd->opcode)); |
132159a5 JA |
467 | ret = 1; |
468 | } | |
469 | ||
470 | return ret; | |
471 | } | |
472 | ||
70e0c316 | 473 | static int handle_connection(int sk, int block) |
132159a5 JA |
474 | { |
475 | struct fio_net_cmd *cmd = NULL; | |
476 | int ret = 0; | |
477 | ||
478 | /* read forever */ | |
479 | while (!exit_backend) { | |
e951bdc4 JA |
480 | struct pollfd pfd = { |
481 | .fd = sk, | |
482 | .events = POLLIN, | |
483 | }; | |
484 | ||
485 | ret = 0; | |
486 | do { | |
487 | ret = poll(&pfd, 1, 100); | |
488 | if (ret < 0) { | |
489 | if (errno == EINTR) | |
490 | break; | |
491 | log_err("fio: poll: %s\n", strerror(errno)); | |
492 | break; | |
19c65179 JA |
493 | } else if (!ret) { |
494 | if (!block) | |
495 | return 0; | |
e951bdc4 | 496 | continue; |
19c65179 | 497 | } |
e951bdc4 JA |
498 | |
499 | if (pfd.revents & POLLIN) | |
500 | break; | |
501 | if (pfd.revents & (POLLERR|POLLHUP)) { | |
502 | ret = 1; | |
503 | break; | |
504 | } | |
19c65179 | 505 | } while (!exit_backend); |
e951bdc4 JA |
506 | |
507 | if (ret < 0) | |
508 | break; | |
509 | ||
510 | cmd = fio_net_recv_cmd(sk); | |
132159a5 | 511 | if (!cmd) { |
c28e8e8c | 512 | ret = -1; |
132159a5 JA |
513 | break; |
514 | } | |
515 | ||
132159a5 JA |
516 | ret = handle_command(cmd); |
517 | if (ret) | |
518 | break; | |
519 | ||
520 | free(cmd); | |
c77a99e7 | 521 | cmd = NULL; |
132159a5 JA |
522 | } |
523 | ||
524 | if (cmd) | |
525 | free(cmd); | |
526 | ||
527 | return ret; | |
528 | } | |
529 | ||
cc0df00a JA |
530 | void fio_server_idle_loop(void) |
531 | { | |
532 | if (server_fd != -1) | |
70e0c316 | 533 | handle_connection(server_fd, 0); |
cc0df00a JA |
534 | } |
535 | ||
50d16976 JA |
536 | static int accept_loop(int listen_sk) |
537 | { | |
bb447a27 | 538 | struct sockaddr_in addr; |
5ba13ea6 | 539 | fio_socklen_t len = sizeof(addr); |
009b1be4 | 540 | struct pollfd pfd; |
132159a5 | 541 | int ret, sk, flags, exitval = 0; |
50d16976 | 542 | |
60efd14e JA |
543 | dprint(FD_NET, "server enter accept loop\n"); |
544 | ||
009b1be4 JA |
545 | flags = fcntl(listen_sk, F_GETFL); |
546 | flags |= O_NONBLOCK; | |
547 | fcntl(listen_sk, F_SETFL, flags); | |
50d16976 | 548 | again: |
009b1be4 JA |
549 | pfd.fd = listen_sk; |
550 | pfd.events = POLLIN; | |
551 | do { | |
552 | ret = poll(&pfd, 1, 100); | |
553 | if (ret < 0) { | |
554 | if (errno == EINTR) | |
555 | break; | |
fcee5ff6 | 556 | log_err("fio: poll: %s\n", strerror(errno)); |
009b1be4 JA |
557 | goto out; |
558 | } else if (!ret) | |
559 | continue; | |
560 | ||
561 | if (pfd.revents & POLLIN) | |
562 | break; | |
563 | } while (!exit_backend); | |
564 | ||
565 | if (exit_backend) | |
566 | goto out; | |
567 | ||
6b976bfc | 568 | sk = accept(listen_sk, (struct sockaddr *) &addr, &len); |
50d16976 | 569 | if (sk < 0) { |
690e09ae | 570 | log_err("fio: accept: %s\n", strerror(errno)); |
50d16976 JA |
571 | return -1; |
572 | } | |
573 | ||
bb447a27 | 574 | dprint(FD_NET, "server: connect from %s\n", inet_ntoa(addr.sin_addr)); |
46c48f1f | 575 | |
37db14fe JA |
576 | server_fd = sk; |
577 | ||
70e0c316 | 578 | exitval = handle_connection(sk, 1); |
50d16976 | 579 | |
37db14fe | 580 | server_fd = -1; |
50d16976 | 581 | close(sk); |
5c341e9a | 582 | |
009b1be4 | 583 | if (!exit_backend) |
5c341e9a JA |
584 | goto again; |
585 | ||
009b1be4 | 586 | out: |
132159a5 | 587 | return exitval; |
50d16976 JA |
588 | } |
589 | ||
13755d94 | 590 | int fio_server_text_output(const char *buf, size_t len) |
37db14fe | 591 | { |
337d75a8 | 592 | if (server_fd != -1) |
af9c9fb3 | 593 | return fio_net_send_cmd(server_fd, FIO_NET_CMD_TEXT, buf, len, 0); |
337d75a8 | 594 | |
13755d94 | 595 | return log_local_buf(buf, len); |
142575e6 JA |
596 | } |
597 | ||
a64e88da JA |
598 | static void convert_io_stat(struct io_stat *dst, struct io_stat *src) |
599 | { | |
600 | dst->max_val = cpu_to_le64(src->max_val); | |
601 | dst->min_val = cpu_to_le64(src->min_val); | |
602 | dst->samples = cpu_to_le64(src->samples); | |
802ad4a8 JA |
603 | |
604 | /* | |
605 | * Encode to IEEE 754 for network transfer | |
606 | */ | |
607 | dst->mean.u.i = __cpu_to_le64(fio_double_to_uint64(src->mean.u.f)); | |
608 | dst->S.u.i = __cpu_to_le64(fio_double_to_uint64(src->S.u.f)); | |
a64e88da JA |
609 | } |
610 | ||
611 | static void convert_gs(struct group_run_stats *dst, struct group_run_stats *src) | |
612 | { | |
613 | int i; | |
614 | ||
615 | for (i = 0; i < 2; i++) { | |
616 | dst->max_run[i] = cpu_to_le64(src->max_run[i]); | |
617 | dst->min_run[i] = cpu_to_le64(src->min_run[i]); | |
618 | dst->max_bw[i] = cpu_to_le64(src->max_bw[i]); | |
619 | dst->min_bw[i] = cpu_to_le64(src->min_bw[i]); | |
620 | dst->io_kb[i] = cpu_to_le64(src->io_kb[i]); | |
621 | dst->agg[i] = cpu_to_le64(src->agg[i]); | |
622 | } | |
623 | ||
624 | dst->kb_base = cpu_to_le32(src->kb_base); | |
625 | dst->groupid = cpu_to_le32(src->groupid); | |
626 | } | |
627 | ||
628 | /* | |
629 | * Send a CMD_TS, which packs struct thread_stat and group_run_stats | |
630 | * into a single payload. | |
631 | */ | |
632 | void fio_server_send_ts(struct thread_stat *ts, struct group_run_stats *rs) | |
633 | { | |
634 | struct cmd_ts_pdu p; | |
635 | int i, j; | |
636 | ||
60efd14e JA |
637 | dprint(FD_NET, "server sending end stats\n"); |
638 | ||
317b3c8b JA |
639 | memset(&p, 0, sizeof(p)); |
640 | ||
a64e88da JA |
641 | strcpy(p.ts.name, ts->name); |
642 | strcpy(p.ts.verror, ts->verror); | |
643 | strcpy(p.ts.description, ts->description); | |
644 | ||
ddcc0b69 | 645 | p.ts.error = cpu_to_le32(ts->error); |
a64e88da | 646 | p.ts.groupid = cpu_to_le32(ts->groupid); |
ddcc0b69 | 647 | p.ts.pid = cpu_to_le32(ts->pid); |
a64e88da JA |
648 | p.ts.members = cpu_to_le32(ts->members); |
649 | ||
650 | for (i = 0; i < 2; i++) { | |
651 | convert_io_stat(&p.ts.clat_stat[i], &ts->clat_stat[i]); | |
652 | convert_io_stat(&p.ts.slat_stat[i], &ts->slat_stat[i]); | |
653 | convert_io_stat(&p.ts.lat_stat[i], &ts->lat_stat[i]); | |
654 | convert_io_stat(&p.ts.bw_stat[i], &ts->bw_stat[i]); | |
655 | } | |
656 | ||
657 | p.ts.usr_time = cpu_to_le64(ts->usr_time); | |
658 | p.ts.sys_time = cpu_to_le64(ts->sys_time); | |
659 | p.ts.ctx = cpu_to_le64(ts->ctx); | |
660 | p.ts.minf = cpu_to_le64(ts->minf); | |
661 | p.ts.majf = cpu_to_le64(ts->majf); | |
662 | p.ts.clat_percentiles = cpu_to_le64(ts->clat_percentiles); | |
802ad4a8 JA |
663 | |
664 | for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) { | |
665 | fio_fp64_t *fp = &p.ts.percentile_list[i]; | |
666 | ||
667 | fp->u.i = __cpu_to_le64(fio_double_to_uint64(fp->u.f)); | |
668 | } | |
a64e88da JA |
669 | |
670 | for (i = 0; i < FIO_IO_U_MAP_NR; i++) { | |
671 | p.ts.io_u_map[i] = cpu_to_le32(ts->io_u_map[i]); | |
672 | p.ts.io_u_submit[i] = cpu_to_le32(ts->io_u_submit[i]); | |
673 | p.ts.io_u_complete[i] = cpu_to_le32(ts->io_u_complete[i]); | |
674 | } | |
675 | ||
676 | for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) { | |
677 | p.ts.io_u_lat_u[i] = cpu_to_le32(ts->io_u_lat_u[i]); | |
678 | p.ts.io_u_lat_m[i] = cpu_to_le32(ts->io_u_lat_m[i]); | |
679 | } | |
680 | ||
681 | for (i = 0; i < 2; i++) | |
682 | for (j = 0; j < FIO_IO_U_PLAT_NR; j++) | |
683 | p.ts.io_u_plat[i][j] = cpu_to_le32(ts->io_u_plat[i][j]); | |
684 | ||
685 | for (i = 0; i < 3; i++) { | |
686 | p.ts.total_io_u[i] = cpu_to_le64(ts->total_io_u[i]); | |
93eee04a | 687 | p.ts.short_io_u[i] = cpu_to_le64(ts->short_io_u[i]); |
a64e88da JA |
688 | } |
689 | ||
93eee04a | 690 | p.ts.total_submit = cpu_to_le64(ts->total_submit); |
a64e88da JA |
691 | p.ts.total_complete = cpu_to_le64(ts->total_complete); |
692 | ||
693 | for (i = 0; i < 2; i++) { | |
694 | p.ts.io_bytes[i] = cpu_to_le64(ts->io_bytes[i]); | |
695 | p.ts.runtime[i] = cpu_to_le64(ts->runtime[i]); | |
696 | } | |
697 | ||
698 | p.ts.total_run_time = cpu_to_le64(ts->total_run_time); | |
699 | p.ts.continue_on_error = cpu_to_le16(ts->continue_on_error); | |
700 | p.ts.total_err_count = cpu_to_le64(ts->total_err_count); | |
ddcc0b69 JA |
701 | p.ts.first_error = cpu_to_le32(ts->first_error); |
702 | p.ts.kb_base = cpu_to_le32(ts->kb_base); | |
a64e88da JA |
703 | |
704 | convert_gs(&p.rs, rs); | |
705 | ||
af9c9fb3 | 706 | fio_net_send_cmd(server_fd, FIO_NET_CMD_TS, &p, sizeof(p), 0); |
a64e88da JA |
707 | } |
708 | ||
709 | void fio_server_send_gs(struct group_run_stats *rs) | |
710 | { | |
711 | struct group_run_stats gs; | |
712 | ||
60efd14e JA |
713 | dprint(FD_NET, "server sending group run stats\n"); |
714 | ||
a64e88da | 715 | convert_gs(&gs, rs); |
af9c9fb3 | 716 | fio_net_send_cmd(server_fd, FIO_NET_CMD_GS, &gs, sizeof(gs), 0); |
cf451d1e JA |
717 | } |
718 | ||
142575e6 JA |
719 | int fio_server_log(const char *format, ...) |
720 | { | |
721 | char buffer[1024]; | |
722 | va_list args; | |
82fa6b21 | 723 | size_t len; |
142575e6 | 724 | |
60efd14e JA |
725 | dprint(FD_NET, "server log\n"); |
726 | ||
142575e6 | 727 | va_start(args, format); |
82fa6b21 | 728 | len = vsnprintf(buffer, sizeof(buffer), format, args); |
142575e6 JA |
729 | va_end(args); |
730 | ||
82fa6b21 | 731 | return fio_server_text_output(buffer, len); |
37db14fe | 732 | } |
e46d8091 | 733 | |
87aa8f19 | 734 | static int fio_init_server_ip(void) |
81179eec | 735 | { |
87aa8f19 | 736 | int sk, opt; |
81179eec JA |
737 | |
738 | sk = socket(AF_INET, SOCK_STREAM, 0); | |
739 | if (sk < 0) { | |
740 | log_err("fio: socket: %s\n", strerror(errno)); | |
741 | return -1; | |
742 | } | |
743 | ||
744 | opt = 1; | |
745 | if (setsockopt(sk, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt)) < 0) { | |
746 | log_err("fio: setsockopt: %s\n", strerror(errno)); | |
b94cba47 | 747 | close(sk); |
81179eec JA |
748 | return -1; |
749 | } | |
750 | #ifdef SO_REUSEPORT | |
6eb24791 | 751 | if (setsockopt(sk, SOL_SOCKET, SO_REUSEPORT, &opt, sizeof(opt)) < 0) { |
81179eec | 752 | log_err("fio: setsockopt: %s\n", strerror(errno)); |
b94cba47 | 753 | close(sk); |
81179eec JA |
754 | return -1; |
755 | } | |
756 | #endif | |
757 | ||
758 | saddr_in.sin_family = AF_INET; | |
81179eec JA |
759 | |
760 | if (bind(sk, (struct sockaddr *) &saddr_in, sizeof(saddr_in)) < 0) { | |
761 | log_err("fio: bind: %s\n", strerror(errno)); | |
b94cba47 | 762 | close(sk); |
81179eec JA |
763 | return -1; |
764 | } | |
765 | ||
87aa8f19 JA |
766 | return sk; |
767 | } | |
768 | ||
769 | static int fio_init_server_sock(void) | |
770 | { | |
771 | struct sockaddr_un addr; | |
772 | fio_socklen_t len; | |
773 | mode_t mode; | |
774 | int sk; | |
775 | ||
776 | sk = socket(AF_UNIX, SOCK_STREAM, 0); | |
777 | if (sk < 0) { | |
778 | log_err("fio: socket: %s\n", strerror(errno)); | |
779 | return -1; | |
780 | } | |
781 | ||
782 | mode = umask(000); | |
783 | ||
784 | memset(&addr, 0, sizeof(addr)); | |
785 | addr.sun_family = AF_UNIX; | |
786 | strcpy(addr.sun_path, bind_sock); | |
787 | unlink(bind_sock); | |
788 | ||
789 | len = sizeof(addr.sun_family) + strlen(bind_sock) + 1; | |
790 | ||
791 | if (bind(sk, (struct sockaddr *) &addr, len) < 0) { | |
792 | log_err("fio: bind: %s\n", strerror(errno)); | |
b94cba47 | 793 | close(sk); |
87aa8f19 JA |
794 | return -1; |
795 | } | |
796 | ||
797 | umask(mode); | |
798 | return sk; | |
799 | } | |
800 | ||
801 | static int fio_init_server_connection(void) | |
802 | { | |
bebe6398 | 803 | char bind_str[128]; |
87aa8f19 JA |
804 | int sk; |
805 | ||
806 | dprint(FD_NET, "starting server\n"); | |
807 | ||
808 | if (!bind_sock) | |
809 | sk = fio_init_server_ip(); | |
810 | else | |
811 | sk = fio_init_server_sock(); | |
812 | ||
813 | if (sk < 0) | |
814 | return sk; | |
815 | ||
bebe6398 JA |
816 | if (!bind_sock) |
817 | sprintf(bind_str, "%s:%u", inet_ntoa(saddr_in.sin_addr), fio_net_port); | |
818 | else | |
819 | strcpy(bind_str, bind_sock); | |
820 | ||
821 | log_info("fio: server listening on %s\n", bind_str); | |
822 | ||
89c1707c | 823 | if (listen(sk, 0) < 0) { |
81179eec JA |
824 | log_err("fio: listen: %s\n", strerror(errno)); |
825 | return -1; | |
826 | } | |
827 | ||
87aa8f19 JA |
828 | return sk; |
829 | } | |
830 | ||
bebe6398 JA |
831 | int fio_server_parse_string(const char *str, char **ptr, int *is_sock, |
832 | int *port, struct in_addr *inp) | |
833 | { | |
834 | *ptr = NULL; | |
835 | *is_sock = 0; | |
6d2cf394 | 836 | *port = fio_net_port; |
bebe6398 JA |
837 | |
838 | if (!strncmp(str, "sock:", 5)) { | |
839 | *ptr = strdup(str + 5); | |
840 | *is_sock = 1; | |
841 | } else { | |
842 | const char *host = str; | |
843 | char *portp; | |
844 | int lport = 0; | |
845 | ||
846 | /* | |
847 | * Is it ip:<ip or host>:port | |
848 | */ | |
849 | if (!strncmp(host, "ip:", 3)) | |
850 | host += 3; | |
851 | else if (host[0] == ':') { | |
852 | /* String is :port */ | |
853 | host++; | |
854 | lport = atoi(host); | |
855 | if (!lport || lport > 65535) { | |
856 | log_err("fio: bad server port %u\n", port); | |
857 | return 1; | |
858 | } | |
859 | /* no hostname given, we are done */ | |
860 | *port = lport; | |
861 | return 0; | |
862 | } | |
863 | ||
864 | /* | |
865 | * If no port seen yet, check if there's a last ':' at the end | |
866 | */ | |
867 | if (!lport) { | |
868 | portp = strchr(host, ':'); | |
869 | if (portp) { | |
870 | *portp = '\0'; | |
871 | portp++; | |
872 | lport = atoi(portp); | |
873 | if (!lport || lport > 65535) { | |
874 | log_err("fio: bad server port %u\n", port); | |
875 | return 1; | |
876 | } | |
877 | } | |
878 | } | |
879 | ||
880 | if (lport) | |
881 | *port = lport; | |
882 | ||
883 | *ptr = strdup(host); | |
884 | ||
885 | if (inet_aton(host, inp) != 1) { | |
886 | struct hostent *hent; | |
887 | ||
888 | hent = gethostbyname(host); | |
889 | if (!hent) { | |
bebe6398 JA |
890 | free(*ptr); |
891 | *ptr = NULL; | |
892 | return 1; | |
893 | } | |
894 | ||
895 | memcpy(inp, hent->h_addr, 4); | |
896 | } | |
897 | } | |
898 | ||
899 | if (*port == 0) | |
900 | *port = fio_net_port; | |
901 | ||
902 | return 0; | |
903 | } | |
904 | ||
87aa8f19 JA |
905 | /* |
906 | * Server arg should be one of: | |
907 | * | |
908 | * sock:/path/to/socket | |
909 | * ip:1.2.3.4 | |
910 | * 1.2.3.4 | |
911 | * | |
912 | * Where sock uses unix domain sockets, and ip binds the server to | |
913 | * a specific interface. If no arguments are given to the server, it | |
914 | * uses IP and binds to 0.0.0.0. | |
915 | * | |
916 | */ | |
917 | static int fio_handle_server_arg(void) | |
918 | { | |
6d2cf394 | 919 | int port = fio_net_port; |
a7de0a11 | 920 | int is_sock, ret = 0; |
bebe6398 | 921 | |
87aa8f19 JA |
922 | saddr_in.sin_addr.s_addr = htonl(INADDR_ANY); |
923 | ||
924 | if (!fio_server_arg) | |
a7de0a11 | 925 | goto out; |
87aa8f19 | 926 | |
4e5b8fb8 | 927 | ret = fio_server_parse_string(fio_server_arg, &bind_sock, &is_sock, |
6d2cf394 | 928 | &port, &saddr_in.sin_addr); |
4e5b8fb8 JA |
929 | |
930 | if (!is_sock && bind_sock) { | |
931 | free(bind_sock); | |
932 | bind_sock = NULL; | |
933 | } | |
934 | ||
a7de0a11 | 935 | out: |
6d2cf394 JA |
936 | fio_net_port = port; |
937 | saddr_in.sin_port = htons(port); | |
4e5b8fb8 | 938 | return ret; |
87aa8f19 JA |
939 | } |
940 | ||
941 | static int fio_server(void) | |
942 | { | |
943 | int sk, ret; | |
944 | ||
945 | dprint(FD_NET, "starting server\n"); | |
946 | ||
947 | if (fio_handle_server_arg()) | |
948 | return -1; | |
949 | ||
950 | sk = fio_init_server_connection(); | |
951 | if (sk < 0) | |
952 | return -1; | |
81179eec JA |
953 | |
954 | ret = accept_loop(sk); | |
87aa8f19 | 955 | |
81179eec | 956 | close(sk); |
87aa8f19 JA |
957 | |
958 | if (fio_server_arg) { | |
959 | free(fio_server_arg); | |
960 | fio_server_arg = NULL; | |
961 | } | |
bebe6398 JA |
962 | if (bind_sock) |
963 | free(bind_sock); | |
87aa8f19 | 964 | |
81179eec JA |
965 | return ret; |
966 | } | |
967 | ||
9abea48b JA |
968 | static void sig_int(int sig) |
969 | { | |
970 | fio_terminate_threads(TERMINATE_ALL); | |
971 | exit_backend = 1; | |
972 | } | |
973 | ||
974 | static void server_signal_handler(void) | |
975 | { | |
976 | struct sigaction act; | |
977 | ||
978 | memset(&act, 0, sizeof(act)); | |
979 | act.sa_handler = sig_int; | |
980 | act.sa_flags = SA_RESTART; | |
981 | sigaction(SIGINT, &act, NULL); | |
982 | ||
983 | memset(&act, 0, sizeof(act)); | |
984 | act.sa_handler = sig_int; | |
985 | act.sa_flags = SA_RESTART; | |
986 | sigaction(SIGTERM, &act, NULL); | |
987 | } | |
988 | ||
13755d94 JA |
989 | static int check_existing_pidfile(const char *pidfile) |
990 | { | |
991 | struct stat sb; | |
992 | char buf[16]; | |
993 | pid_t pid; | |
994 | FILE *f; | |
995 | ||
996 | if (stat(pidfile, &sb)) | |
997 | return 0; | |
998 | ||
999 | f = fopen(pidfile, "r"); | |
1000 | if (!f) | |
1001 | return 0; | |
1002 | ||
bfc3b179 | 1003 | if (fread(buf, sb.st_size, 1, f) <= 0) { |
13755d94 JA |
1004 | fclose(f); |
1005 | return 1; | |
1006 | } | |
1007 | fclose(f); | |
1008 | ||
1009 | pid = atoi(buf); | |
1010 | if (kill(pid, SIGCONT) < 0) | |
ea5aa1be | 1011 | return errno != ESRCH; |
13755d94 JA |
1012 | |
1013 | return 1; | |
1014 | } | |
1015 | ||
1016 | static int write_pid(pid_t pid, const char *pidfile) | |
402668f3 JA |
1017 | { |
1018 | FILE *fpid; | |
1019 | ||
1020 | fpid = fopen(pidfile, "w"); | |
1021 | if (!fpid) { | |
1022 | log_err("fio: failed opening pid file %s\n", pidfile); | |
13755d94 | 1023 | return 1; |
402668f3 JA |
1024 | } |
1025 | ||
1026 | fprintf(fpid, "%u\n", (unsigned int) pid); | |
13755d94 JA |
1027 | fclose(fpid); |
1028 | return 0; | |
402668f3 JA |
1029 | } |
1030 | ||
1031 | /* | |
1032 | * If pidfile is specified, background us. | |
1033 | */ | |
1034 | int fio_start_server(char *pidfile) | |
e46d8091 JA |
1035 | { |
1036 | pid_t pid; | |
402668f3 | 1037 | int ret; |
e46d8091 | 1038 | |
9abea48b JA |
1039 | server_signal_handler(); |
1040 | ||
402668f3 | 1041 | if (!pidfile) |
e46d8091 JA |
1042 | return fio_server(); |
1043 | ||
13755d94 JA |
1044 | if (check_existing_pidfile(pidfile)) { |
1045 | log_err("fio: pidfile %s exists and server appears alive\n", | |
1046 | pidfile); | |
1047 | return -1; | |
1048 | } | |
1049 | ||
e46d8091 JA |
1050 | pid = fork(); |
1051 | if (pid < 0) { | |
13755d94 | 1052 | log_err("fio: failed server fork: %s", strerror(errno)); |
402668f3 | 1053 | free(pidfile); |
c28e8e8c | 1054 | return -1; |
402668f3 | 1055 | } else if (pid) { |
13755d94 JA |
1056 | int ret = write_pid(pid, pidfile); |
1057 | ||
1058 | exit(ret); | |
402668f3 | 1059 | } |
e46d8091 JA |
1060 | |
1061 | setsid(); | |
13755d94 JA |
1062 | openlog("fio", LOG_NDELAY|LOG_NOWAIT|LOG_PID, LOG_USER); |
1063 | log_syslog = 1; | |
e46d8091 JA |
1064 | close(STDIN_FILENO); |
1065 | close(STDOUT_FILENO); | |
1066 | close(STDERR_FILENO); | |
1067 | f_out = NULL; | |
1068 | f_err = NULL; | |
402668f3 JA |
1069 | |
1070 | ret = fio_server(); | |
1071 | ||
1072 | closelog(); | |
1073 | unlink(pidfile); | |
1074 | free(pidfile); | |
1075 | return ret; | |
e46d8091 | 1076 | } |
87aa8f19 | 1077 | |
bebe6398 | 1078 | void fio_server_set_arg(const char *arg) |
87aa8f19 JA |
1079 | { |
1080 | fio_server_arg = strdup(arg); | |
1081 | } |