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> |
1b42725f | 19 | #include <zlib.h> |
50d16976 JA |
20 | |
21 | #include "fio.h" | |
132159a5 | 22 | #include "server.h" |
fcee5ff6 | 23 | #include "crc/crc16.h" |
c7c6cb4c | 24 | #include "lib/ieee754.h" |
89cf1480 JA |
25 | |
26 | #include "fio_version.h" | |
50d16976 | 27 | |
5adc2447 | 28 | int fio_net_port = FIO_NET_PORT; |
50d16976 | 29 | |
009b1be4 JA |
30 | int exit_backend = 0; |
31 | ||
46c48f1f | 32 | static int server_fd = -1; |
87aa8f19 JA |
33 | static char *fio_server_arg; |
34 | static char *bind_sock; | |
35 | static struct sockaddr_in saddr_in; | |
811826be | 36 | static struct sockaddr_in6 saddr_in6; |
01be038e | 37 | static int first_cmd_check; |
811826be | 38 | static int use_ipv6; |
37db14fe | 39 | |
89c1707c JA |
40 | static const char *fio_server_ops[FIO_NET_CMD_NR] = { |
41 | "", | |
42 | "QUIT", | |
43 | "EXIT", | |
44 | "JOB", | |
45 | "JOBLINE", | |
46 | "TEXT", | |
47 | "TS", | |
48 | "GS", | |
49 | "SEND_ETA", | |
50 | "ETA", | |
51 | "PROBE", | |
52 | "START", | |
d09a64a0 JA |
53 | "STOP", |
54 | "DISK_UTIL", | |
b9d2f30a | 55 | "SERVER_START", |
807f9971 | 56 | "ADD_JOB", |
b9d2f30a | 57 | "CMD_RUN" |
89c1707c JA |
58 | }; |
59 | ||
60 | const char *fio_server_op(unsigned int op) | |
61 | { | |
62 | static char buf[32]; | |
63 | ||
64 | if (op < FIO_NET_CMD_NR) | |
65 | return fio_server_ops[op]; | |
66 | ||
67 | sprintf(buf, "UNKNOWN/%d", op); | |
68 | return buf; | |
69 | } | |
70 | ||
132159a5 JA |
71 | int fio_send_data(int sk, const void *p, unsigned int len) |
72 | { | |
b9d2f30a | 73 | assert(len <= sizeof(struct fio_net_cmd) + FIO_SERVER_MAX_FRAGMENT_PDU); |
794d69ca | 74 | |
132159a5 JA |
75 | do { |
76 | int ret = send(sk, p, len, 0); | |
77 | ||
78 | if (ret > 0) { | |
79 | len -= ret; | |
80 | if (!len) | |
81 | break; | |
82 | p += ret; | |
83 | continue; | |
84 | } else if (!ret) | |
85 | break; | |
86 | else if (errno == EAGAIN || errno == EINTR) | |
87 | continue; | |
7b821684 JA |
88 | else |
89 | break; | |
132159a5 JA |
90 | } while (!exit_backend); |
91 | ||
92 | if (!len) | |
93 | return 0; | |
94 | ||
8b4e61b2 JA |
95 | if (errno) |
96 | return -errno; | |
97 | ||
132159a5 JA |
98 | return 1; |
99 | } | |
100 | ||
101 | int fio_recv_data(int sk, void *p, unsigned int len) | |
102 | { | |
103 | do { | |
104 | int ret = recv(sk, p, len, MSG_WAITALL); | |
105 | ||
106 | if (ret > 0) { | |
107 | len -= ret; | |
108 | if (!len) | |
109 | break; | |
110 | p += ret; | |
111 | continue; | |
112 | } else if (!ret) | |
113 | break; | |
114 | else if (errno == EAGAIN || errno == EINTR) | |
115 | continue; | |
7b821684 JA |
116 | else |
117 | break; | |
132159a5 JA |
118 | } while (!exit_backend); |
119 | ||
120 | if (!len) | |
121 | return 0; | |
122 | ||
123 | return -1; | |
124 | } | |
125 | ||
126 | static int verify_convert_cmd(struct fio_net_cmd *cmd) | |
127 | { | |
fcee5ff6 | 128 | uint16_t crc; |
132159a5 | 129 | |
fcee5ff6 JA |
130 | cmd->cmd_crc16 = le16_to_cpu(cmd->cmd_crc16); |
131 | cmd->pdu_crc16 = le16_to_cpu(cmd->pdu_crc16); | |
132159a5 | 132 | |
25dfa848 | 133 | crc = fio_crc16(cmd, FIO_NET_CMD_CRC_SZ); |
fcee5ff6 | 134 | if (crc != cmd->cmd_crc16) { |
132159a5 | 135 | log_err("fio: server bad crc on command (got %x, wanted %x)\n", |
fcee5ff6 | 136 | cmd->cmd_crc16, crc); |
132159a5 JA |
137 | return 1; |
138 | } | |
139 | ||
140 | cmd->version = le16_to_cpu(cmd->version); | |
141 | cmd->opcode = le16_to_cpu(cmd->opcode); | |
142 | cmd->flags = le32_to_cpu(cmd->flags); | |
af9c9fb3 | 143 | cmd->tag = le64_to_cpu(cmd->tag); |
132159a5 JA |
144 | cmd->pdu_len = le32_to_cpu(cmd->pdu_len); |
145 | ||
146 | switch (cmd->version) { | |
fa2ea806 | 147 | case FIO_SERVER_VER: |
132159a5 JA |
148 | break; |
149 | default: | |
150 | log_err("fio: bad server cmd version %d\n", cmd->version); | |
151 | return 1; | |
152 | } | |
153 | ||
b9d2f30a | 154 | if (cmd->pdu_len > FIO_SERVER_MAX_FRAGMENT_PDU) { |
132159a5 JA |
155 | log_err("fio: command payload too large: %u\n", cmd->pdu_len); |
156 | return 1; | |
157 | } | |
158 | ||
159 | return 0; | |
160 | } | |
161 | ||
a64e88da JA |
162 | /* |
163 | * Read (and defragment, if necessary) incoming commands | |
164 | */ | |
e951bdc4 | 165 | struct fio_net_cmd *fio_net_recv_cmd(int sk) |
132159a5 | 166 | { |
a64e88da JA |
167 | struct fio_net_cmd cmd, *cmdret = NULL; |
168 | size_t cmd_size = 0, pdu_offset = 0; | |
fcee5ff6 | 169 | uint16_t crc; |
a64e88da JA |
170 | int ret, first = 1; |
171 | void *pdu = NULL; | |
132159a5 | 172 | |
a64e88da JA |
173 | do { |
174 | ret = fio_recv_data(sk, &cmd, sizeof(cmd)); | |
175 | if (ret) | |
176 | break; | |
132159a5 | 177 | |
a64e88da JA |
178 | /* We have a command, verify it and swap if need be */ |
179 | ret = verify_convert_cmd(&cmd); | |
180 | if (ret) | |
181 | break; | |
132159a5 | 182 | |
0b8f30a5 JA |
183 | if (first) { |
184 | /* if this is text, add room for \0 at the end */ | |
185 | cmd_size = sizeof(cmd) + cmd.pdu_len + 1; | |
186 | assert(!cmdret); | |
187 | } else | |
a64e88da | 188 | cmd_size += cmd.pdu_len; |
132159a5 | 189 | |
a64e88da | 190 | cmdret = realloc(cmdret, cmd_size); |
132159a5 | 191 | |
a64e88da JA |
192 | if (first) |
193 | memcpy(cmdret, &cmd, sizeof(cmd)); | |
67f15dcf JA |
194 | else if (cmdret->opcode != cmd.opcode) { |
195 | log_err("fio: fragment opcode mismatch (%d != %d)\n", | |
196 | cmdret->opcode, cmd.opcode); | |
197 | ret = 1; | |
198 | break; | |
199 | } | |
a64e88da JA |
200 | |
201 | if (!cmd.pdu_len) | |
202 | break; | |
203 | ||
204 | /* There's payload, get it */ | |
205 | pdu = (void *) cmdret->payload + pdu_offset; | |
206 | ret = fio_recv_data(sk, pdu, cmd.pdu_len); | |
207 | if (ret) | |
208 | break; | |
209 | ||
210 | /* Verify payload crc */ | |
25dfa848 | 211 | crc = fio_crc16(pdu, cmd.pdu_len); |
a64e88da JA |
212 | if (crc != cmd.pdu_crc16) { |
213 | log_err("fio: server bad crc on payload "); | |
214 | log_err("(got %x, wanted %x)\n", cmd.pdu_crc16, crc); | |
215 | ret = 1; | |
216 | break; | |
217 | } | |
218 | ||
219 | pdu_offset += cmd.pdu_len; | |
817f06bb JA |
220 | if (!first) |
221 | cmdret->pdu_len += cmd.pdu_len; | |
a64e88da JA |
222 | first = 0; |
223 | } while (cmd.flags & FIO_NET_CMD_F_MORE); | |
132159a5 | 224 | |
a64e88da JA |
225 | if (ret) { |
226 | free(cmdret); | |
227 | cmdret = NULL; | |
0b8f30a5 JA |
228 | } else if (cmdret) { |
229 | /* zero-terminate text input */ | |
084d1c6f JA |
230 | if (cmdret->pdu_len) { |
231 | if (cmdret->opcode == FIO_NET_CMD_TEXT) { | |
232 | struct cmd_text_pdu *pdu = (struct cmd_text_pdu *) cmdret->payload; | |
233 | char *buf = (char *) pdu->buf; | |
0b8f30a5 | 234 | |
084d1c6f JA |
235 | buf[pdu->buf_len ] = '\0'; |
236 | } else if (cmdret->opcode == FIO_NET_CMD_JOB) { | |
46bcd498 JA |
237 | struct cmd_job_pdu *pdu = (struct cmd_job_pdu *) cmdret->payload; |
238 | char *buf = (char *) pdu->buf; | |
239 | int len = le32_to_cpu(pdu->buf_len); | |
084d1c6f | 240 | |
46bcd498 | 241 | buf[len] = '\0'; |
084d1c6f | 242 | } |
0b8f30a5 | 243 | } |
084d1c6f | 244 | |
0b8f30a5 | 245 | /* frag flag is internal */ |
a64e88da | 246 | cmdret->flags &= ~FIO_NET_CMD_F_MORE; |
0b8f30a5 | 247 | } |
a64e88da JA |
248 | |
249 | return cmdret; | |
132159a5 JA |
250 | } |
251 | ||
1b42725f | 252 | void fio_net_cmd_crc_pdu(struct fio_net_cmd *cmd, void *pdu) |
132159a5 JA |
253 | { |
254 | uint32_t pdu_len; | |
255 | ||
25dfa848 | 256 | cmd->cmd_crc16 = __cpu_to_le16(fio_crc16(cmd, FIO_NET_CMD_CRC_SZ)); |
132159a5 JA |
257 | |
258 | pdu_len = le32_to_cpu(cmd->pdu_len); | |
1b42725f JA |
259 | cmd->pdu_crc16 = __cpu_to_le16(fio_crc16(pdu, pdu_len)); |
260 | } | |
261 | ||
262 | void fio_net_cmd_crc(struct fio_net_cmd *cmd) | |
263 | { | |
264 | fio_net_cmd_crc_pdu(cmd, cmd->payload); | |
132159a5 JA |
265 | } |
266 | ||
af9c9fb3 JA |
267 | int fio_net_send_cmd(int fd, uint16_t opcode, const void *buf, off_t size, |
268 | uint64_t tag) | |
794d69ca | 269 | { |
7f868316 JA |
270 | struct fio_net_cmd *cmd = NULL; |
271 | size_t this_len, cur_len = 0; | |
794d69ca JA |
272 | int ret; |
273 | ||
274 | do { | |
275 | this_len = size; | |
b9d2f30a JA |
276 | if (this_len > FIO_SERVER_MAX_FRAGMENT_PDU) |
277 | this_len = FIO_SERVER_MAX_FRAGMENT_PDU; | |
794d69ca | 278 | |
7f868316 JA |
279 | if (!cmd || cur_len < sizeof(*cmd) + this_len) { |
280 | if (cmd) | |
281 | free(cmd); | |
282 | ||
283 | cur_len = sizeof(*cmd) + this_len; | |
284 | cmd = malloc(cur_len); | |
285 | } | |
794d69ca | 286 | |
af9c9fb3 | 287 | fio_init_net_cmd(cmd, opcode, buf, this_len, tag); |
794d69ca JA |
288 | |
289 | if (this_len < size) | |
ddcc0b69 | 290 | cmd->flags = __cpu_to_le32(FIO_NET_CMD_F_MORE); |
794d69ca JA |
291 | |
292 | fio_net_cmd_crc(cmd); | |
293 | ||
294 | ret = fio_send_data(fd, cmd, sizeof(*cmd) + this_len); | |
794d69ca JA |
295 | size -= this_len; |
296 | buf += this_len; | |
297 | } while (!ret && size); | |
298 | ||
7f868316 JA |
299 | if (cmd) |
300 | free(cmd); | |
301 | ||
794d69ca JA |
302 | return ret; |
303 | } | |
304 | ||
89c1707c | 305 | static int fio_net_send_simple_stack_cmd(int sk, uint16_t opcode, uint64_t tag) |
132159a5 | 306 | { |
178cde9f | 307 | struct fio_net_cmd cmd; |
132159a5 | 308 | |
af9c9fb3 | 309 | fio_init_net_cmd(&cmd, opcode, NULL, 0, tag); |
132159a5 JA |
310 | fio_net_cmd_crc(&cmd); |
311 | ||
312 | return fio_send_data(sk, &cmd, sizeof(cmd)); | |
313 | } | |
314 | ||
89c1707c JA |
315 | /* |
316 | * If 'list' is non-NULL, then allocate and store the sent command for | |
317 | * later verification. | |
318 | */ | |
319 | int fio_net_send_simple_cmd(int sk, uint16_t opcode, uint64_t tag, | |
320 | struct flist_head *list) | |
321 | { | |
322 | struct fio_net_int_cmd *cmd; | |
323 | int ret; | |
324 | ||
325 | if (!list) | |
326 | return fio_net_send_simple_stack_cmd(sk, opcode, tag); | |
327 | ||
328 | cmd = malloc(sizeof(*cmd)); | |
329 | ||
df380934 | 330 | fio_init_net_cmd(&cmd->cmd, opcode, NULL, 0, (uintptr_t) cmd); |
89c1707c JA |
331 | fio_net_cmd_crc(&cmd->cmd); |
332 | ||
333 | INIT_FLIST_HEAD(&cmd->list); | |
334 | gettimeofday(&cmd->tv, NULL); | |
335 | cmd->saved_tag = tag; | |
336 | ||
337 | ret = fio_send_data(sk, &cmd->cmd, sizeof(cmd->cmd)); | |
338 | if (ret) { | |
339 | free(cmd); | |
340 | return ret; | |
341 | } | |
342 | ||
343 | flist_add_tail(&cmd->list, list); | |
344 | return 0; | |
345 | } | |
346 | ||
9abea48b | 347 | static int fio_server_send_quit_cmd(void) |
437377e1 | 348 | { |
46c48f1f | 349 | dprint(FD_NET, "server: sending quit\n"); |
89c1707c | 350 | return fio_net_send_simple_cmd(server_fd, FIO_NET_CMD_QUIT, 0, NULL); |
437377e1 JA |
351 | } |
352 | ||
b9d2f30a | 353 | static int handle_run_cmd(struct fio_net_cmd *cmd) |
132159a5 | 354 | { |
11e950bd | 355 | struct cmd_end_pdu epdu; |
a64e88da | 356 | int ret; |
132159a5 | 357 | |
2e1df07d | 358 | ret = fio_backend(); |
11e950bd JA |
359 | |
360 | epdu.error = ret; | |
361 | fio_net_send_cmd(server_fd, FIO_NET_CMD_STOP, &epdu, sizeof(epdu), 0); | |
362 | ||
9abea48b | 363 | fio_server_send_quit_cmd(); |
81179eec | 364 | reset_fio_state(); |
8663ea65 | 365 | first_cmd_check = 0; |
81179eec JA |
366 | return ret; |
367 | } | |
368 | ||
b9d2f30a JA |
369 | static int handle_job_cmd(struct fio_net_cmd *cmd) |
370 | { | |
46bcd498 JA |
371 | struct cmd_job_pdu *pdu = (struct cmd_job_pdu *) cmd->payload; |
372 | void *buf = pdu->buf; | |
b9d2f30a JA |
373 | struct cmd_start_pdu spdu; |
374 | ||
46bcd498 JA |
375 | pdu->buf_len = le32_to_cpu(pdu->buf_len); |
376 | pdu->client_type = le32_to_cpu(pdu->client_type); | |
377 | ||
378 | if (parse_jobs_ini(buf, 1, 0, pdu->client_type)) { | |
b9d2f30a JA |
379 | fio_server_send_quit_cmd(); |
380 | return -1; | |
381 | } | |
382 | ||
383 | spdu.jobs = cpu_to_le32(thread_number); | |
384 | fio_net_send_cmd(server_fd, FIO_NET_CMD_START, &spdu, sizeof(spdu), 0); | |
385 | return 0; | |
386 | } | |
387 | ||
81179eec JA |
388 | static int handle_jobline_cmd(struct fio_net_cmd *cmd) |
389 | { | |
fa2ea806 JA |
390 | void *pdu = cmd->payload; |
391 | struct cmd_single_line_pdu *cslp; | |
392 | struct cmd_line_pdu *clp; | |
393 | unsigned long offset; | |
b9d2f30a | 394 | struct cmd_start_pdu spdu; |
fa2ea806 | 395 | char **argv; |
b9d2f30a | 396 | int i; |
81179eec | 397 | |
fa2ea806 JA |
398 | clp = pdu; |
399 | clp->lines = le16_to_cpu(clp->lines); | |
46bcd498 | 400 | clp->client_type = le16_to_cpu(clp->client_type); |
fa2ea806 JA |
401 | argv = malloc(clp->lines * sizeof(char *)); |
402 | offset = sizeof(*clp); | |
81179eec | 403 | |
fa2ea806 | 404 | dprint(FD_NET, "server: %d command line args\n", clp->lines); |
39e8e016 | 405 | |
fa2ea806 JA |
406 | for (i = 0; i < clp->lines; i++) { |
407 | cslp = pdu + offset; | |
408 | argv[i] = (char *) cslp->text; | |
409 | ||
410 | offset += sizeof(*cslp) + le16_to_cpu(cslp->len); | |
39e8e016 JA |
411 | dprint(FD_NET, "server: %d: %s\n", i, argv[i]); |
412 | } | |
81179eec | 413 | |
46bcd498 | 414 | if (parse_cmd_line(clp->lines, argv, clp->client_type)) { |
e6d1c668 | 415 | fio_server_send_quit_cmd(); |
fa2ea806 | 416 | free(argv); |
81179eec | 417 | return -1; |
e6d1c668 | 418 | } |
81179eec | 419 | |
fa2ea806 JA |
420 | free(argv); |
421 | ||
b9d2f30a JA |
422 | spdu.jobs = cpu_to_le32(thread_number); |
423 | fio_net_send_cmd(server_fd, FIO_NET_CMD_START, &spdu, sizeof(spdu), 0); | |
424 | return 0; | |
132159a5 JA |
425 | } |
426 | ||
c28e8e8c JA |
427 | static int handle_probe_cmd(struct fio_net_cmd *cmd) |
428 | { | |
429 | struct cmd_probe_pdu probe; | |
430 | ||
89c1707c JA |
431 | dprint(FD_NET, "server: sending probe reply\n"); |
432 | ||
c28e8e8c JA |
433 | memset(&probe, 0, sizeof(probe)); |
434 | gethostname((char *) probe.hostname, sizeof(probe.hostname)); | |
6eb24791 JA |
435 | #ifdef FIO_BIG_ENDIAN |
436 | probe.bigendian = 1; | |
437 | #endif | |
81179eec JA |
438 | probe.fio_major = FIO_MAJOR; |
439 | probe.fio_minor = FIO_MINOR; | |
440 | probe.fio_patch = FIO_PATCH; | |
c28e8e8c | 441 | |
cca84643 JA |
442 | probe.os = FIO_OS; |
443 | probe.arch = FIO_ARCH; | |
444 | ||
38fdef22 JA |
445 | probe.bpp = sizeof(void *); |
446 | ||
89c1707c | 447 | return fio_net_send_cmd(server_fd, FIO_NET_CMD_PROBE, &probe, sizeof(probe), cmd->tag); |
af9c9fb3 JA |
448 | } |
449 | ||
450 | static int handle_send_eta_cmd(struct fio_net_cmd *cmd) | |
451 | { | |
452 | struct jobs_eta *je; | |
453 | size_t size; | |
af9c9fb3 JA |
454 | int i; |
455 | ||
b814fb26 JA |
456 | if (!thread_number) |
457 | return 0; | |
458 | ||
459 | size = sizeof(*je) + thread_number * sizeof(char) + 1; | |
7f868316 JA |
460 | je = malloc(size); |
461 | memset(je, 0, size); | |
af9c9fb3 JA |
462 | |
463 | if (!calc_thread_status(je, 1)) { | |
464 | free(je); | |
465 | return 0; | |
466 | } | |
467 | ||
468 | dprint(FD_NET, "server sending status\n"); | |
469 | ||
470 | je->nr_running = cpu_to_le32(je->nr_running); | |
471 | je->nr_ramp = cpu_to_le32(je->nr_ramp); | |
472 | je->nr_pending = cpu_to_le32(je->nr_pending); | |
473 | je->files_open = cpu_to_le32(je->files_open); | |
af9c9fb3 JA |
474 | |
475 | for (i = 0; i < 2; i++) { | |
3e47bd25 JA |
476 | je->m_rate[i] = cpu_to_le32(je->m_rate[i]); |
477 | je->t_rate[i] = cpu_to_le32(je->t_rate[i]); | |
478 | je->m_iops[i] = cpu_to_le32(je->m_iops[i]); | |
479 | je->t_iops[i] = cpu_to_le32(je->t_iops[i]); | |
af9c9fb3 JA |
480 | je->rate[i] = cpu_to_le32(je->rate[i]); |
481 | je->iops[i] = cpu_to_le32(je->iops[i]); | |
482 | } | |
483 | ||
c1970b90 | 484 | je->elapsed_sec = cpu_to_le64(je->elapsed_sec); |
af9c9fb3 | 485 | je->eta_sec = cpu_to_le64(je->eta_sec); |
8c621fb2 | 486 | je->nr_threads = cpu_to_le32(je->nr_threads); |
af9c9fb3 | 487 | |
7f868316 | 488 | fio_net_send_cmd(server_fd, FIO_NET_CMD_ETA, je, size, cmd->tag); |
af9c9fb3 JA |
489 | free(je); |
490 | return 0; | |
c28e8e8c JA |
491 | } |
492 | ||
132159a5 JA |
493 | static int handle_command(struct fio_net_cmd *cmd) |
494 | { | |
495 | int ret; | |
496 | ||
89c1707c JA |
497 | dprint(FD_NET, "server: got op [%s], pdu=%u, tag=%lx\n", |
498 | fio_server_op(cmd->opcode), cmd->pdu_len, cmd->tag); | |
46c48f1f | 499 | |
132159a5 JA |
500 | switch (cmd->opcode) { |
501 | case FIO_NET_CMD_QUIT: | |
cc0df00a | 502 | fio_terminate_threads(TERMINATE_ALL); |
c28e8e8c | 503 | return -1; |
d7959186 | 504 | case FIO_NET_CMD_EXIT: |
132159a5 | 505 | exit_backend = 1; |
c28e8e8c | 506 | return -1; |
132159a5 | 507 | case FIO_NET_CMD_JOB: |
0b8f30a5 | 508 | ret = handle_job_cmd(cmd); |
132159a5 | 509 | break; |
81179eec JA |
510 | case FIO_NET_CMD_JOBLINE: |
511 | ret = handle_jobline_cmd(cmd); | |
512 | break; | |
c28e8e8c JA |
513 | case FIO_NET_CMD_PROBE: |
514 | ret = handle_probe_cmd(cmd); | |
515 | break; | |
af9c9fb3 JA |
516 | case FIO_NET_CMD_SEND_ETA: |
517 | ret = handle_send_eta_cmd(cmd); | |
518 | break; | |
b9d2f30a JA |
519 | case FIO_NET_CMD_RUN: |
520 | ret = handle_run_cmd(cmd); | |
521 | break; | |
132159a5 | 522 | default: |
89c1707c | 523 | log_err("fio: unknown opcode: %s\n",fio_server_op(cmd->opcode)); |
132159a5 JA |
524 | ret = 1; |
525 | } | |
526 | ||
527 | return ret; | |
528 | } | |
529 | ||
70e0c316 | 530 | static int handle_connection(int sk, int block) |
132159a5 JA |
531 | { |
532 | struct fio_net_cmd *cmd = NULL; | |
533 | int ret = 0; | |
534 | ||
535 | /* read forever */ | |
536 | while (!exit_backend) { | |
e951bdc4 JA |
537 | struct pollfd pfd = { |
538 | .fd = sk, | |
539 | .events = POLLIN, | |
540 | }; | |
541 | ||
542 | ret = 0; | |
543 | do { | |
544 | ret = poll(&pfd, 1, 100); | |
545 | if (ret < 0) { | |
546 | if (errno == EINTR) | |
547 | break; | |
548 | log_err("fio: poll: %s\n", strerror(errno)); | |
549 | break; | |
19c65179 JA |
550 | } else if (!ret) { |
551 | if (!block) | |
552 | return 0; | |
e951bdc4 | 553 | continue; |
19c65179 | 554 | } |
e951bdc4 JA |
555 | |
556 | if (pfd.revents & POLLIN) | |
557 | break; | |
558 | if (pfd.revents & (POLLERR|POLLHUP)) { | |
559 | ret = 1; | |
560 | break; | |
561 | } | |
19c65179 | 562 | } while (!exit_backend); |
e951bdc4 JA |
563 | |
564 | if (ret < 0) | |
565 | break; | |
566 | ||
567 | cmd = fio_net_recv_cmd(sk); | |
132159a5 | 568 | if (!cmd) { |
c28e8e8c | 569 | ret = -1; |
132159a5 JA |
570 | break; |
571 | } | |
572 | ||
132159a5 JA |
573 | ret = handle_command(cmd); |
574 | if (ret) | |
575 | break; | |
576 | ||
577 | free(cmd); | |
c77a99e7 | 578 | cmd = NULL; |
132159a5 JA |
579 | } |
580 | ||
581 | if (cmd) | |
582 | free(cmd); | |
583 | ||
584 | return ret; | |
585 | } | |
586 | ||
cc0df00a JA |
587 | void fio_server_idle_loop(void) |
588 | { | |
3ec62ec4 | 589 | if (!first_cmd_check) { |
5d7793aa | 590 | fio_net_send_simple_cmd(server_fd, FIO_NET_CMD_SERVER_START, 0, NULL); |
3ec62ec4 JA |
591 | first_cmd_check = 1; |
592 | } | |
cc0df00a | 593 | if (server_fd != -1) |
70e0c316 | 594 | handle_connection(server_fd, 0); |
cc0df00a JA |
595 | } |
596 | ||
50d16976 JA |
597 | static int accept_loop(int listen_sk) |
598 | { | |
bb447a27 | 599 | struct sockaddr_in addr; |
5ba13ea6 | 600 | fio_socklen_t len = sizeof(addr); |
009b1be4 | 601 | struct pollfd pfd; |
132159a5 | 602 | int ret, sk, flags, exitval = 0; |
50d16976 | 603 | |
60efd14e JA |
604 | dprint(FD_NET, "server enter accept loop\n"); |
605 | ||
009b1be4 JA |
606 | flags = fcntl(listen_sk, F_GETFL); |
607 | flags |= O_NONBLOCK; | |
608 | fcntl(listen_sk, F_SETFL, flags); | |
50d16976 | 609 | again: |
009b1be4 JA |
610 | pfd.fd = listen_sk; |
611 | pfd.events = POLLIN; | |
612 | do { | |
613 | ret = poll(&pfd, 1, 100); | |
614 | if (ret < 0) { | |
615 | if (errno == EINTR) | |
616 | break; | |
fcee5ff6 | 617 | log_err("fio: poll: %s\n", strerror(errno)); |
009b1be4 JA |
618 | goto out; |
619 | } else if (!ret) | |
620 | continue; | |
621 | ||
622 | if (pfd.revents & POLLIN) | |
623 | break; | |
624 | } while (!exit_backend); | |
625 | ||
626 | if (exit_backend) | |
627 | goto out; | |
628 | ||
6b976bfc | 629 | sk = accept(listen_sk, (struct sockaddr *) &addr, &len); |
50d16976 | 630 | if (sk < 0) { |
690e09ae | 631 | log_err("fio: accept: %s\n", strerror(errno)); |
50d16976 JA |
632 | return -1; |
633 | } | |
634 | ||
bb447a27 | 635 | dprint(FD_NET, "server: connect from %s\n", inet_ntoa(addr.sin_addr)); |
46c48f1f | 636 | |
37db14fe JA |
637 | server_fd = sk; |
638 | ||
70e0c316 | 639 | exitval = handle_connection(sk, 1); |
50d16976 | 640 | |
37db14fe | 641 | server_fd = -1; |
50d16976 | 642 | close(sk); |
5c341e9a | 643 | |
009b1be4 | 644 | if (!exit_backend) |
5c341e9a JA |
645 | goto again; |
646 | ||
009b1be4 | 647 | out: |
132159a5 | 648 | return exitval; |
50d16976 JA |
649 | } |
650 | ||
084d1c6f | 651 | int fio_server_text_output(int level, const char *buf, size_t len) |
37db14fe | 652 | { |
084d1c6f JA |
653 | struct cmd_text_pdu *pdu; |
654 | unsigned int tlen; | |
655 | struct timeval tv; | |
656 | ||
657 | if (server_fd == -1) | |
658 | return log_local_buf(buf, len); | |
659 | ||
660 | tlen = sizeof(*pdu) + len; | |
661 | pdu = malloc(tlen); | |
662 | ||
663 | pdu->level = __cpu_to_le32(level); | |
664 | pdu->buf_len = __cpu_to_le32(len); | |
665 | ||
666 | gettimeofday(&tv, NULL); | |
667 | pdu->log_sec = __cpu_to_le64(tv.tv_sec); | |
668 | pdu->log_usec = __cpu_to_le64(tv.tv_usec); | |
337d75a8 | 669 | |
084d1c6f JA |
670 | memcpy(pdu->buf, buf, len); |
671 | ||
672 | fio_net_send_cmd(server_fd, FIO_NET_CMD_TEXT, pdu, tlen, 0); | |
673 | free(pdu); | |
674 | return len; | |
142575e6 JA |
675 | } |
676 | ||
a64e88da JA |
677 | static void convert_io_stat(struct io_stat *dst, struct io_stat *src) |
678 | { | |
679 | dst->max_val = cpu_to_le64(src->max_val); | |
680 | dst->min_val = cpu_to_le64(src->min_val); | |
681 | dst->samples = cpu_to_le64(src->samples); | |
802ad4a8 JA |
682 | |
683 | /* | |
684 | * Encode to IEEE 754 for network transfer | |
685 | */ | |
686 | dst->mean.u.i = __cpu_to_le64(fio_double_to_uint64(src->mean.u.f)); | |
687 | dst->S.u.i = __cpu_to_le64(fio_double_to_uint64(src->S.u.f)); | |
a64e88da JA |
688 | } |
689 | ||
690 | static void convert_gs(struct group_run_stats *dst, struct group_run_stats *src) | |
691 | { | |
692 | int i; | |
693 | ||
694 | for (i = 0; i < 2; i++) { | |
695 | dst->max_run[i] = cpu_to_le64(src->max_run[i]); | |
696 | dst->min_run[i] = cpu_to_le64(src->min_run[i]); | |
697 | dst->max_bw[i] = cpu_to_le64(src->max_bw[i]); | |
698 | dst->min_bw[i] = cpu_to_le64(src->min_bw[i]); | |
699 | dst->io_kb[i] = cpu_to_le64(src->io_kb[i]); | |
700 | dst->agg[i] = cpu_to_le64(src->agg[i]); | |
701 | } | |
702 | ||
703 | dst->kb_base = cpu_to_le32(src->kb_base); | |
704 | dst->groupid = cpu_to_le32(src->groupid); | |
705 | } | |
706 | ||
707 | /* | |
708 | * Send a CMD_TS, which packs struct thread_stat and group_run_stats | |
709 | * into a single payload. | |
710 | */ | |
711 | void fio_server_send_ts(struct thread_stat *ts, struct group_run_stats *rs) | |
712 | { | |
713 | struct cmd_ts_pdu p; | |
714 | int i, j; | |
715 | ||
60efd14e JA |
716 | dprint(FD_NET, "server sending end stats\n"); |
717 | ||
317b3c8b JA |
718 | memset(&p, 0, sizeof(p)); |
719 | ||
a64e88da JA |
720 | strcpy(p.ts.name, ts->name); |
721 | strcpy(p.ts.verror, ts->verror); | |
722 | strcpy(p.ts.description, ts->description); | |
723 | ||
ddcc0b69 | 724 | p.ts.error = cpu_to_le32(ts->error); |
a64e88da | 725 | p.ts.groupid = cpu_to_le32(ts->groupid); |
ddcc0b69 | 726 | p.ts.pid = cpu_to_le32(ts->pid); |
a64e88da JA |
727 | p.ts.members = cpu_to_le32(ts->members); |
728 | ||
729 | for (i = 0; i < 2; i++) { | |
730 | convert_io_stat(&p.ts.clat_stat[i], &ts->clat_stat[i]); | |
731 | convert_io_stat(&p.ts.slat_stat[i], &ts->slat_stat[i]); | |
732 | convert_io_stat(&p.ts.lat_stat[i], &ts->lat_stat[i]); | |
733 | convert_io_stat(&p.ts.bw_stat[i], &ts->bw_stat[i]); | |
734 | } | |
735 | ||
736 | p.ts.usr_time = cpu_to_le64(ts->usr_time); | |
737 | p.ts.sys_time = cpu_to_le64(ts->sys_time); | |
738 | p.ts.ctx = cpu_to_le64(ts->ctx); | |
739 | p.ts.minf = cpu_to_le64(ts->minf); | |
740 | p.ts.majf = cpu_to_le64(ts->majf); | |
741 | p.ts.clat_percentiles = cpu_to_le64(ts->clat_percentiles); | |
802ad4a8 JA |
742 | |
743 | for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) { | |
cfc03e46 JA |
744 | fio_fp64_t *src = &ts->percentile_list[i]; |
745 | fio_fp64_t *dst = &p.ts.percentile_list[i]; | |
802ad4a8 | 746 | |
cfc03e46 | 747 | dst->u.i = __cpu_to_le64(fio_double_to_uint64(src->u.f)); |
802ad4a8 | 748 | } |
a64e88da JA |
749 | |
750 | for (i = 0; i < FIO_IO_U_MAP_NR; i++) { | |
751 | p.ts.io_u_map[i] = cpu_to_le32(ts->io_u_map[i]); | |
752 | p.ts.io_u_submit[i] = cpu_to_le32(ts->io_u_submit[i]); | |
753 | p.ts.io_u_complete[i] = cpu_to_le32(ts->io_u_complete[i]); | |
754 | } | |
755 | ||
756 | for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) { | |
757 | p.ts.io_u_lat_u[i] = cpu_to_le32(ts->io_u_lat_u[i]); | |
758 | p.ts.io_u_lat_m[i] = cpu_to_le32(ts->io_u_lat_m[i]); | |
759 | } | |
760 | ||
761 | for (i = 0; i < 2; i++) | |
762 | for (j = 0; j < FIO_IO_U_PLAT_NR; j++) | |
763 | p.ts.io_u_plat[i][j] = cpu_to_le32(ts->io_u_plat[i][j]); | |
764 | ||
765 | for (i = 0; i < 3; i++) { | |
766 | p.ts.total_io_u[i] = cpu_to_le64(ts->total_io_u[i]); | |
93eee04a | 767 | p.ts.short_io_u[i] = cpu_to_le64(ts->short_io_u[i]); |
a64e88da JA |
768 | } |
769 | ||
93eee04a | 770 | p.ts.total_submit = cpu_to_le64(ts->total_submit); |
a64e88da JA |
771 | p.ts.total_complete = cpu_to_le64(ts->total_complete); |
772 | ||
773 | for (i = 0; i < 2; i++) { | |
774 | p.ts.io_bytes[i] = cpu_to_le64(ts->io_bytes[i]); | |
775 | p.ts.runtime[i] = cpu_to_le64(ts->runtime[i]); | |
776 | } | |
777 | ||
778 | p.ts.total_run_time = cpu_to_le64(ts->total_run_time); | |
779 | p.ts.continue_on_error = cpu_to_le16(ts->continue_on_error); | |
780 | p.ts.total_err_count = cpu_to_le64(ts->total_err_count); | |
ddcc0b69 JA |
781 | p.ts.first_error = cpu_to_le32(ts->first_error); |
782 | p.ts.kb_base = cpu_to_le32(ts->kb_base); | |
a64e88da JA |
783 | |
784 | convert_gs(&p.rs, rs); | |
785 | ||
af9c9fb3 | 786 | fio_net_send_cmd(server_fd, FIO_NET_CMD_TS, &p, sizeof(p), 0); |
a64e88da JA |
787 | } |
788 | ||
789 | void fio_server_send_gs(struct group_run_stats *rs) | |
790 | { | |
791 | struct group_run_stats gs; | |
792 | ||
60efd14e JA |
793 | dprint(FD_NET, "server sending group run stats\n"); |
794 | ||
a64e88da | 795 | convert_gs(&gs, rs); |
af9c9fb3 | 796 | fio_net_send_cmd(server_fd, FIO_NET_CMD_GS, &gs, sizeof(gs), 0); |
cf451d1e JA |
797 | } |
798 | ||
d09a64a0 JA |
799 | static void convert_agg(struct disk_util_agg *dst, struct disk_util_agg *src) |
800 | { | |
801 | int i; | |
802 | ||
803 | for (i = 0; i < 2; i++) { | |
804 | dst->ios[i] = cpu_to_le32(src->ios[i]); | |
805 | dst->merges[i] = cpu_to_le32(src->merges[i]); | |
806 | dst->sectors[i] = cpu_to_le64(src->sectors[i]); | |
807 | dst->ticks[i] = cpu_to_le32(src->ticks[i]); | |
808 | } | |
809 | ||
810 | dst->io_ticks = cpu_to_le32(src->io_ticks); | |
811 | dst->time_in_queue = cpu_to_le32(src->time_in_queue); | |
812 | dst->slavecount = cpu_to_le32(src->slavecount); | |
813 | dst->max_util.u.i = __cpu_to_le64(fio_double_to_uint64(src->max_util.u.f)); | |
814 | } | |
815 | ||
816 | static void convert_dus(struct disk_util_stat *dst, struct disk_util_stat *src) | |
817 | { | |
818 | int i; | |
819 | ||
820 | strcpy((char *) dst->name, (char *) src->name); | |
821 | ||
822 | for (i = 0; i < 2; i++) { | |
823 | dst->ios[i] = cpu_to_le32(src->ios[i]); | |
824 | dst->merges[i] = cpu_to_le32(src->merges[i]); | |
825 | dst->sectors[i] = cpu_to_le64(src->sectors[i]); | |
826 | dst->ticks[i] = cpu_to_le32(src->ticks[i]); | |
827 | } | |
828 | ||
829 | dst->io_ticks = cpu_to_le32(src->io_ticks); | |
830 | dst->time_in_queue = cpu_to_le32(src->time_in_queue); | |
831 | dst->msec = cpu_to_le64(src->msec); | |
832 | } | |
833 | ||
834 | void fio_server_send_du(void) | |
835 | { | |
836 | struct disk_util *du; | |
837 | struct flist_head *entry; | |
838 | struct cmd_du_pdu pdu; | |
839 | ||
840 | dprint(FD_NET, "server: sending disk_util %d\n", !flist_empty(&disk_list)); | |
841 | ||
0766d92e JA |
842 | memset(&pdu, 0, sizeof(pdu)); |
843 | ||
d09a64a0 JA |
844 | flist_for_each(entry, &disk_list) { |
845 | du = flist_entry(entry, struct disk_util, list); | |
846 | ||
847 | convert_dus(&pdu.dus, &du->dus); | |
848 | convert_agg(&pdu.agg, &du->agg); | |
849 | ||
850 | fio_net_send_cmd(server_fd, FIO_NET_CMD_DU, &pdu, sizeof(pdu), 0); | |
851 | } | |
852 | } | |
853 | ||
1b42725f JA |
854 | int fio_send_iolog(struct thread_data *td, struct io_log *log, const char *name) |
855 | { | |
856 | struct cmd_iolog_pdu *pdu; | |
857 | struct fio_net_cmd cmd; | |
858 | z_stream stream; | |
859 | void *out_pdu; | |
860 | size_t p_size; | |
861 | int i; | |
862 | ||
863 | p_size = sizeof(*pdu) + log->nr_samples * sizeof(struct io_sample); | |
864 | pdu = malloc(p_size); | |
865 | ||
866 | pdu->nr_samples = __cpu_to_le32(log->nr_samples); | |
867 | pdu->log_type = cpu_to_le32(log->log_type); | |
868 | strcpy((char *) pdu->name, name); | |
869 | ||
870 | for (i = 0; i < log->nr_samples; i++) { | |
871 | struct io_sample *s = &pdu->samples[i]; | |
872 | ||
873 | s->time = cpu_to_le64(log->log[i].time); | |
874 | s->val = cpu_to_le64(log->log[i].val); | |
875 | s->ddir = cpu_to_le32(log->log[i].ddir); | |
876 | s->bs = cpu_to_le32(log->log[i].bs); | |
877 | } | |
878 | ||
879 | /* | |
880 | * Dirty - since the log is potentially huge, compress it into | |
881 | * FIO_SERVER_MAX_FRAGMENT_PDU chunks and let the receiving | |
882 | * side defragment it. | |
883 | */ | |
884 | out_pdu = malloc(FIO_SERVER_MAX_FRAGMENT_PDU); | |
885 | ||
886 | stream.zalloc = Z_NULL; | |
887 | stream.zfree = Z_NULL; | |
888 | stream.opaque = Z_NULL; | |
889 | ||
890 | if (deflateInit(&stream, Z_DEFAULT_COMPRESSION) != Z_OK) { | |
891 | free(out_pdu); | |
892 | free(pdu); | |
893 | return 1; | |
894 | } | |
895 | ||
896 | /* | |
897 | * Don't compress the nr samples entry, we want to know on the | |
898 | * client side how much data to allocate before starting inflate. | |
899 | */ | |
900 | __fio_init_net_cmd(&cmd, FIO_NET_CMD_IOLOG, sizeof(pdu->nr_samples), 0); | |
901 | cmd.flags = __cpu_to_le32(FIO_NET_CMD_F_MORE); | |
902 | fio_net_cmd_crc_pdu(&cmd, pdu); | |
903 | fio_send_data(server_fd, &cmd, sizeof(cmd)); | |
904 | fio_send_data(server_fd, pdu, sizeof(pdu->nr_samples)); | |
905 | ||
906 | stream.next_in = (void *) pdu + sizeof(pdu->nr_samples); | |
907 | stream.avail_in = p_size - sizeof(pdu->nr_samples); | |
908 | ||
909 | do { | |
910 | unsigned int this_len; | |
911 | ||
912 | stream.avail_out = FIO_SERVER_MAX_FRAGMENT_PDU; | |
913 | stream.next_out = out_pdu; | |
914 | deflate(&stream, Z_FINISH); | |
915 | ||
916 | this_len = FIO_SERVER_MAX_FRAGMENT_PDU - stream.avail_out; | |
917 | ||
918 | __fio_init_net_cmd(&cmd, FIO_NET_CMD_IOLOG, this_len, 0); | |
919 | ||
920 | if (stream.avail_in) | |
921 | cmd.flags = __cpu_to_le32(FIO_NET_CMD_F_MORE); | |
922 | ||
923 | fio_net_cmd_crc_pdu(&cmd, out_pdu); | |
924 | ||
925 | fio_send_data(server_fd, &cmd, sizeof(cmd)); | |
926 | fio_send_data(server_fd, out_pdu, this_len); | |
927 | } while (stream.avail_in); | |
928 | ||
929 | free(pdu); | |
930 | free(out_pdu); | |
931 | deflateEnd(&stream); | |
932 | return 0; | |
933 | } | |
934 | ||
807f9971 JA |
935 | void fio_server_send_add_job(struct thread_options *o, const char *ioengine) |
936 | { | |
937 | struct cmd_add_job_pdu pdu; | |
807f9971 | 938 | |
dcaeb606 | 939 | convert_thread_options_to_net(&pdu.top, o); |
807f9971 JA |
940 | |
941 | fio_net_send_cmd(server_fd, FIO_NET_CMD_ADD_JOB, &pdu, sizeof(pdu), 0); | |
942 | } | |
943 | ||
87aa8f19 | 944 | static int fio_init_server_ip(void) |
81179eec | 945 | { |
811826be JA |
946 | struct sockaddr *addr; |
947 | fio_socklen_t socklen; | |
87aa8f19 | 948 | int sk, opt; |
81179eec | 949 | |
811826be JA |
950 | if (use_ipv6) |
951 | sk = socket(AF_INET6, SOCK_STREAM, 0); | |
952 | else | |
953 | sk = socket(AF_INET, SOCK_STREAM, 0); | |
954 | ||
81179eec JA |
955 | if (sk < 0) { |
956 | log_err("fio: socket: %s\n", strerror(errno)); | |
957 | return -1; | |
958 | } | |
959 | ||
960 | opt = 1; | |
961 | if (setsockopt(sk, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt)) < 0) { | |
962 | log_err("fio: setsockopt: %s\n", strerror(errno)); | |
b94cba47 | 963 | close(sk); |
81179eec JA |
964 | return -1; |
965 | } | |
966 | #ifdef SO_REUSEPORT | |
6eb24791 | 967 | if (setsockopt(sk, SOL_SOCKET, SO_REUSEPORT, &opt, sizeof(opt)) < 0) { |
81179eec | 968 | log_err("fio: setsockopt: %s\n", strerror(errno)); |
b94cba47 | 969 | close(sk); |
81179eec JA |
970 | return -1; |
971 | } | |
972 | #endif | |
973 | ||
811826be JA |
974 | if (use_ipv6) { |
975 | addr = (struct sockaddr *) &saddr_in6; | |
976 | socklen = sizeof(saddr_in6); | |
977 | saddr_in6.sin6_family = AF_INET6; | |
978 | } else { | |
979 | addr = (struct sockaddr *) &saddr_in; | |
980 | socklen = sizeof(saddr_in); | |
981 | saddr_in.sin_family = AF_INET; | |
982 | } | |
81179eec | 983 | |
811826be | 984 | if (bind(sk, addr, socklen) < 0) { |
81179eec | 985 | log_err("fio: bind: %s\n", strerror(errno)); |
b94cba47 | 986 | close(sk); |
81179eec JA |
987 | return -1; |
988 | } | |
989 | ||
87aa8f19 JA |
990 | return sk; |
991 | } | |
992 | ||
993 | static int fio_init_server_sock(void) | |
994 | { | |
995 | struct sockaddr_un addr; | |
996 | fio_socklen_t len; | |
997 | mode_t mode; | |
998 | int sk; | |
999 | ||
1000 | sk = socket(AF_UNIX, SOCK_STREAM, 0); | |
1001 | if (sk < 0) { | |
1002 | log_err("fio: socket: %s\n", strerror(errno)); | |
1003 | return -1; | |
1004 | } | |
1005 | ||
1006 | mode = umask(000); | |
1007 | ||
1008 | memset(&addr, 0, sizeof(addr)); | |
1009 | addr.sun_family = AF_UNIX; | |
1010 | strcpy(addr.sun_path, bind_sock); | |
1011 | unlink(bind_sock); | |
1012 | ||
1013 | len = sizeof(addr.sun_family) + strlen(bind_sock) + 1; | |
1014 | ||
1015 | if (bind(sk, (struct sockaddr *) &addr, len) < 0) { | |
1016 | log_err("fio: bind: %s\n", strerror(errno)); | |
b94cba47 | 1017 | close(sk); |
87aa8f19 JA |
1018 | return -1; |
1019 | } | |
1020 | ||
1021 | umask(mode); | |
1022 | return sk; | |
1023 | } | |
1024 | ||
1025 | static int fio_init_server_connection(void) | |
1026 | { | |
bebe6398 | 1027 | char bind_str[128]; |
87aa8f19 JA |
1028 | int sk; |
1029 | ||
1030 | dprint(FD_NET, "starting server\n"); | |
1031 | ||
1032 | if (!bind_sock) | |
1033 | sk = fio_init_server_ip(); | |
1034 | else | |
1035 | sk = fio_init_server_sock(); | |
1036 | ||
1037 | if (sk < 0) | |
1038 | return sk; | |
1039 | ||
811826be JA |
1040 | if (!bind_sock) { |
1041 | char *p, port[16]; | |
1042 | const void *src; | |
1043 | int af; | |
1044 | ||
1045 | if (use_ipv6) { | |
1046 | af = AF_INET6; | |
1047 | src = &saddr_in6.sin6_addr; | |
1048 | } else { | |
1049 | af = AF_INET; | |
1050 | src = &saddr_in.sin_addr; | |
1051 | } | |
1052 | ||
1053 | p = (char *) inet_ntop(af, src, bind_str, sizeof(bind_str)); | |
1054 | ||
1055 | sprintf(port, ",%u", fio_net_port); | |
1056 | if (p) | |
1057 | strcat(p, port); | |
1058 | else | |
1059 | strcpy(bind_str, port); | |
1060 | } else | |
bebe6398 JA |
1061 | strcpy(bind_str, bind_sock); |
1062 | ||
1063 | log_info("fio: server listening on %s\n", bind_str); | |
1064 | ||
89c1707c | 1065 | if (listen(sk, 0) < 0) { |
81179eec JA |
1066 | log_err("fio: listen: %s\n", strerror(errno)); |
1067 | return -1; | |
1068 | } | |
1069 | ||
87aa8f19 JA |
1070 | return sk; |
1071 | } | |
1072 | ||
3ec62ec4 JA |
1073 | int fio_server_parse_host(const char *host, int *ipv6, struct in_addr *inp, |
1074 | struct in6_addr *inp6) | |
1075 | ||
1076 | { | |
1077 | int ret = 0; | |
1078 | ||
1079 | if (*ipv6) | |
1080 | ret = inet_pton(AF_INET6, host, inp6); | |
1081 | else | |
1082 | ret = inet_pton(AF_INET, host, inp); | |
1083 | ||
1084 | if (ret != 1) { | |
1085 | struct hostent *hent; | |
1086 | ||
1087 | hent = gethostbyname(host); | |
1088 | if (!hent) { | |
1089 | log_err("fio: failed to resolve <%s>\n", host); | |
1090 | return 0; | |
1091 | } | |
1092 | ||
1093 | if (*ipv6) { | |
1094 | if (hent->h_addrtype != AF_INET6) { | |
1095 | log_info("fio: falling back to IPv4\n"); | |
1096 | *ipv6 = 0; | |
1097 | } else | |
1098 | memcpy(inp6, hent->h_addr_list[0], 16); | |
1099 | } | |
1100 | if (!*ipv6) { | |
1101 | if (hent->h_addrtype != AF_INET) { | |
1102 | log_err("fio: lookup type mismatch\n"); | |
1103 | return 0; | |
1104 | } | |
1105 | memcpy(inp, hent->h_addr_list[0], 4); | |
1106 | } | |
1107 | ret = 1; | |
1108 | } | |
1109 | ||
1110 | return !(ret == 1); | |
1111 | } | |
1112 | ||
660a2bfb JA |
1113 | /* |
1114 | * Parse a host/ip/port string. Reads from 'str'. | |
1115 | * | |
1116 | * Outputs: | |
1117 | * | |
1118 | * For IPv4: | |
1119 | * *ptr is the host, *port is the port, inp is the destination. | |
1120 | * For IPv6: | |
1121 | * *ptr is the host, *port is the port, inp6 is the dest, and *ipv6 is 1. | |
1122 | * For local domain sockets: | |
1123 | * *ptr is the filename, *is_sock is 1. | |
1124 | */ | |
bebe6398 | 1125 | int fio_server_parse_string(const char *str, char **ptr, int *is_sock, |
811826be JA |
1126 | int *port, struct in_addr *inp, |
1127 | struct in6_addr *inp6, int *ipv6) | |
bebe6398 | 1128 | { |
76867621 JA |
1129 | const char *host = str; |
1130 | char *portp; | |
3ec62ec4 | 1131 | int lport = 0; |
76867621 | 1132 | |
bebe6398 JA |
1133 | *ptr = NULL; |
1134 | *is_sock = 0; | |
6d2cf394 | 1135 | *port = fio_net_port; |
811826be | 1136 | *ipv6 = 0; |
bebe6398 JA |
1137 | |
1138 | if (!strncmp(str, "sock:", 5)) { | |
1139 | *ptr = strdup(str + 5); | |
1140 | *is_sock = 1; | |
76867621 JA |
1141 | |
1142 | return 0; | |
1143 | } | |
1144 | ||
1145 | /* | |
1146 | * Is it ip:<ip or host>:port | |
1147 | */ | |
1148 | if (!strncmp(host, "ip:", 3)) | |
1149 | host += 3; | |
1150 | else if (!strncmp(host, "ip4:", 4)) | |
1151 | host += 4; | |
1152 | else if (!strncmp(host, "ip6:", 4)) { | |
1153 | host += 4; | |
1154 | *ipv6 = 1; | |
1155 | } else if (host[0] == ':') { | |
1156 | /* String is :port */ | |
1157 | host++; | |
1158 | lport = atoi(host); | |
1159 | if (!lport || lport > 65535) { | |
1160 | log_err("fio: bad server port %u\n", port); | |
1161 | return 1; | |
1162 | } | |
1163 | /* no hostname given, we are done */ | |
1164 | *port = lport; | |
1165 | return 0; | |
1166 | } | |
1167 | ||
1168 | /* | |
1169 | * If no port seen yet, check if there's a last ':' at the end | |
1170 | */ | |
1171 | if (!lport) { | |
1172 | portp = strchr(host, ','); | |
1173 | if (portp) { | |
1174 | *portp = '\0'; | |
1175 | portp++; | |
1176 | lport = atoi(portp); | |
bebe6398 JA |
1177 | if (!lport || lport > 65535) { |
1178 | log_err("fio: bad server port %u\n", port); | |
1179 | return 1; | |
1180 | } | |
bebe6398 | 1181 | } |
76867621 | 1182 | } |
bebe6398 | 1183 | |
76867621 JA |
1184 | if (lport) |
1185 | *port = lport; | |
bebe6398 | 1186 | |
76867621 JA |
1187 | if (!strlen(host)) |
1188 | return 0; | |
bebe6398 | 1189 | |
76867621 | 1190 | *ptr = strdup(host); |
811826be | 1191 | |
3ec62ec4 JA |
1192 | if (fio_server_parse_host(*ptr, ipv6, inp, inp6)) { |
1193 | free(*ptr); | |
1194 | *ptr = NULL; | |
1195 | return 1; | |
bebe6398 JA |
1196 | } |
1197 | ||
1198 | if (*port == 0) | |
1199 | *port = fio_net_port; | |
1200 | ||
1201 | return 0; | |
1202 | } | |
1203 | ||
87aa8f19 JA |
1204 | /* |
1205 | * Server arg should be one of: | |
1206 | * | |
1207 | * sock:/path/to/socket | |
1208 | * ip:1.2.3.4 | |
1209 | * 1.2.3.4 | |
1210 | * | |
1211 | * Where sock uses unix domain sockets, and ip binds the server to | |
1212 | * a specific interface. If no arguments are given to the server, it | |
1213 | * uses IP and binds to 0.0.0.0. | |
1214 | * | |
1215 | */ | |
1216 | static int fio_handle_server_arg(void) | |
1217 | { | |
6d2cf394 | 1218 | int port = fio_net_port; |
a7de0a11 | 1219 | int is_sock, ret = 0; |
bebe6398 | 1220 | |
87aa8f19 JA |
1221 | saddr_in.sin_addr.s_addr = htonl(INADDR_ANY); |
1222 | ||
1223 | if (!fio_server_arg) | |
a7de0a11 | 1224 | goto out; |
87aa8f19 | 1225 | |
4e5b8fb8 | 1226 | ret = fio_server_parse_string(fio_server_arg, &bind_sock, &is_sock, |
811826be JA |
1227 | &port, &saddr_in.sin_addr, |
1228 | &saddr_in6.sin6_addr, &use_ipv6); | |
4e5b8fb8 JA |
1229 | |
1230 | if (!is_sock && bind_sock) { | |
1231 | free(bind_sock); | |
1232 | bind_sock = NULL; | |
1233 | } | |
1234 | ||
a7de0a11 | 1235 | out: |
6d2cf394 JA |
1236 | fio_net_port = port; |
1237 | saddr_in.sin_port = htons(port); | |
811826be | 1238 | saddr_in6.sin6_port = htons(port); |
4e5b8fb8 | 1239 | return ret; |
87aa8f19 JA |
1240 | } |
1241 | ||
1242 | static int fio_server(void) | |
1243 | { | |
1244 | int sk, ret; | |
1245 | ||
1246 | dprint(FD_NET, "starting server\n"); | |
1247 | ||
1248 | if (fio_handle_server_arg()) | |
1249 | return -1; | |
1250 | ||
1251 | sk = fio_init_server_connection(); | |
1252 | if (sk < 0) | |
1253 | return -1; | |
81179eec JA |
1254 | |
1255 | ret = accept_loop(sk); | |
87aa8f19 | 1256 | |
81179eec | 1257 | close(sk); |
87aa8f19 JA |
1258 | |
1259 | if (fio_server_arg) { | |
1260 | free(fio_server_arg); | |
1261 | fio_server_arg = NULL; | |
1262 | } | |
bebe6398 JA |
1263 | if (bind_sock) |
1264 | free(bind_sock); | |
87aa8f19 | 1265 | |
81179eec JA |
1266 | return ret; |
1267 | } | |
1268 | ||
7b821684 | 1269 | void fio_server_got_signal(int signal) |
9abea48b | 1270 | { |
7b821684 JA |
1271 | if (signal == SIGPIPE) |
1272 | server_fd = -1; | |
1273 | else { | |
1274 | log_info("\nfio: terminating on signal %d\n", signal); | |
1275 | exit_backend = 1; | |
1276 | } | |
9abea48b JA |
1277 | } |
1278 | ||
13755d94 JA |
1279 | static int check_existing_pidfile(const char *pidfile) |
1280 | { | |
1281 | struct stat sb; | |
1282 | char buf[16]; | |
1283 | pid_t pid; | |
1284 | FILE *f; | |
1285 | ||
1286 | if (stat(pidfile, &sb)) | |
1287 | return 0; | |
1288 | ||
1289 | f = fopen(pidfile, "r"); | |
1290 | if (!f) | |
1291 | return 0; | |
1292 | ||
bfc3b179 | 1293 | if (fread(buf, sb.st_size, 1, f) <= 0) { |
13755d94 JA |
1294 | fclose(f); |
1295 | return 1; | |
1296 | } | |
1297 | fclose(f); | |
1298 | ||
1299 | pid = atoi(buf); | |
1300 | if (kill(pid, SIGCONT) < 0) | |
ea5aa1be | 1301 | return errno != ESRCH; |
13755d94 JA |
1302 | |
1303 | return 1; | |
1304 | } | |
1305 | ||
1306 | static int write_pid(pid_t pid, const char *pidfile) | |
402668f3 JA |
1307 | { |
1308 | FILE *fpid; | |
1309 | ||
1310 | fpid = fopen(pidfile, "w"); | |
1311 | if (!fpid) { | |
1312 | log_err("fio: failed opening pid file %s\n", pidfile); | |
13755d94 | 1313 | return 1; |
402668f3 JA |
1314 | } |
1315 | ||
1316 | fprintf(fpid, "%u\n", (unsigned int) pid); | |
13755d94 JA |
1317 | fclose(fpid); |
1318 | return 0; | |
402668f3 JA |
1319 | } |
1320 | ||
1321 | /* | |
1322 | * If pidfile is specified, background us. | |
1323 | */ | |
1324 | int fio_start_server(char *pidfile) | |
e46d8091 JA |
1325 | { |
1326 | pid_t pid; | |
402668f3 | 1327 | int ret; |
e46d8091 | 1328 | |
93bcfd20 | 1329 | #if defined(WIN32) |
905c78b9 JA |
1330 | WSADATA wsd; |
1331 | WSAStartup(MAKEWORD(2,2), &wsd); | |
93bcfd20 BC |
1332 | #endif |
1333 | ||
402668f3 | 1334 | if (!pidfile) |
e46d8091 JA |
1335 | return fio_server(); |
1336 | ||
13755d94 JA |
1337 | if (check_existing_pidfile(pidfile)) { |
1338 | log_err("fio: pidfile %s exists and server appears alive\n", | |
1339 | pidfile); | |
1340 | return -1; | |
1341 | } | |
1342 | ||
e46d8091 JA |
1343 | pid = fork(); |
1344 | if (pid < 0) { | |
13755d94 | 1345 | log_err("fio: failed server fork: %s", strerror(errno)); |
402668f3 | 1346 | free(pidfile); |
c28e8e8c | 1347 | return -1; |
402668f3 | 1348 | } else if (pid) { |
13755d94 JA |
1349 | int ret = write_pid(pid, pidfile); |
1350 | ||
1351 | exit(ret); | |
402668f3 | 1352 | } |
e46d8091 JA |
1353 | |
1354 | setsid(); | |
13755d94 JA |
1355 | openlog("fio", LOG_NDELAY|LOG_NOWAIT|LOG_PID, LOG_USER); |
1356 | log_syslog = 1; | |
e46d8091 JA |
1357 | close(STDIN_FILENO); |
1358 | close(STDOUT_FILENO); | |
1359 | close(STDERR_FILENO); | |
1360 | f_out = NULL; | |
1361 | f_err = NULL; | |
402668f3 JA |
1362 | |
1363 | ret = fio_server(); | |
1364 | ||
1365 | closelog(); | |
1366 | unlink(pidfile); | |
1367 | free(pidfile); | |
1368 | return ret; | |
e46d8091 | 1369 | } |
87aa8f19 | 1370 | |
bebe6398 | 1371 | void fio_server_set_arg(const char *arg) |
87aa8f19 JA |
1372 | { |
1373 | fio_server_arg = strdup(arg); | |
1374 | } |