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" |
c70e63e5 | 58 | "CMD_IOLOG", |
89c1707c JA |
59 | }; |
60 | ||
61 | const char *fio_server_op(unsigned int op) | |
62 | { | |
63 | static char buf[32]; | |
64 | ||
65 | if (op < FIO_NET_CMD_NR) | |
66 | return fio_server_ops[op]; | |
67 | ||
68 | sprintf(buf, "UNKNOWN/%d", op); | |
69 | return buf; | |
70 | } | |
71 | ||
5235f626 | 72 | static ssize_t iov_total_len(const struct iovec *iov, int count) |
132159a5 | 73 | { |
5235f626 | 74 | ssize_t ret = 0; |
794d69ca | 75 | |
5235f626 JA |
76 | while (count--) { |
77 | ret += iov->iov_len; | |
78 | iov++; | |
79 | } | |
80 | ||
81 | return ret; | |
82 | } | |
132159a5 | 83 | |
5235f626 JA |
84 | static int fio_sendv_data(int sk, struct iovec *iov, int count) |
85 | { | |
86 | ssize_t total_len = iov_total_len(iov, count); | |
87 | ssize_t ret; | |
88 | ||
89 | do { | |
90 | ret = writev(sk, iov, count); | |
132159a5 | 91 | if (ret > 0) { |
5235f626 JA |
92 | total_len -= ret; |
93 | if (!total_len) | |
132159a5 | 94 | break; |
5235f626 JA |
95 | |
96 | while (ret) { | |
97 | if (ret >= iov->iov_len) { | |
98 | ret -= iov->iov_len; | |
99 | iov++; | |
100 | continue; | |
101 | } | |
102 | iov->iov_base += ret; | |
103 | iov->iov_len -= ret; | |
104 | ret = 0; | |
105 | } | |
132159a5 JA |
106 | } else if (!ret) |
107 | break; | |
108 | else if (errno == EAGAIN || errno == EINTR) | |
109 | continue; | |
7b821684 JA |
110 | else |
111 | break; | |
132159a5 JA |
112 | } while (!exit_backend); |
113 | ||
5235f626 | 114 | if (!total_len) |
132159a5 JA |
115 | return 0; |
116 | ||
8b4e61b2 JA |
117 | if (errno) |
118 | return -errno; | |
119 | ||
132159a5 JA |
120 | return 1; |
121 | } | |
122 | ||
5235f626 JA |
123 | int fio_send_data(int sk, const void *p, unsigned int len) |
124 | { | |
125 | struct iovec iov = { .iov_base = (void *) p, .iov_len = len }; | |
126 | ||
127 | assert(len <= sizeof(struct fio_net_cmd) + FIO_SERVER_MAX_FRAGMENT_PDU); | |
128 | ||
129 | return fio_sendv_data(sk, &iov, 1); | |
130 | } | |
131 | ||
132159a5 JA |
132 | int fio_recv_data(int sk, void *p, unsigned int len) |
133 | { | |
134 | do { | |
135 | int ret = recv(sk, p, len, MSG_WAITALL); | |
136 | ||
137 | if (ret > 0) { | |
138 | len -= ret; | |
139 | if (!len) | |
140 | break; | |
141 | p += ret; | |
142 | continue; | |
143 | } else if (!ret) | |
144 | break; | |
145 | else if (errno == EAGAIN || errno == EINTR) | |
146 | continue; | |
7b821684 JA |
147 | else |
148 | break; | |
132159a5 JA |
149 | } while (!exit_backend); |
150 | ||
151 | if (!len) | |
152 | return 0; | |
153 | ||
154 | return -1; | |
155 | } | |
156 | ||
157 | static int verify_convert_cmd(struct fio_net_cmd *cmd) | |
158 | { | |
fcee5ff6 | 159 | uint16_t crc; |
132159a5 | 160 | |
fcee5ff6 JA |
161 | cmd->cmd_crc16 = le16_to_cpu(cmd->cmd_crc16); |
162 | cmd->pdu_crc16 = le16_to_cpu(cmd->pdu_crc16); | |
132159a5 | 163 | |
25dfa848 | 164 | crc = fio_crc16(cmd, FIO_NET_CMD_CRC_SZ); |
fcee5ff6 | 165 | if (crc != cmd->cmd_crc16) { |
132159a5 | 166 | log_err("fio: server bad crc on command (got %x, wanted %x)\n", |
fcee5ff6 | 167 | cmd->cmd_crc16, crc); |
132159a5 JA |
168 | return 1; |
169 | } | |
170 | ||
171 | cmd->version = le16_to_cpu(cmd->version); | |
172 | cmd->opcode = le16_to_cpu(cmd->opcode); | |
173 | cmd->flags = le32_to_cpu(cmd->flags); | |
af9c9fb3 | 174 | cmd->tag = le64_to_cpu(cmd->tag); |
132159a5 JA |
175 | cmd->pdu_len = le32_to_cpu(cmd->pdu_len); |
176 | ||
177 | switch (cmd->version) { | |
fa2ea806 | 178 | case FIO_SERVER_VER: |
132159a5 JA |
179 | break; |
180 | default: | |
181 | log_err("fio: bad server cmd version %d\n", cmd->version); | |
182 | return 1; | |
183 | } | |
184 | ||
b9d2f30a | 185 | if (cmd->pdu_len > FIO_SERVER_MAX_FRAGMENT_PDU) { |
132159a5 JA |
186 | log_err("fio: command payload too large: %u\n", cmd->pdu_len); |
187 | return 1; | |
188 | } | |
189 | ||
190 | return 0; | |
191 | } | |
192 | ||
a64e88da JA |
193 | /* |
194 | * Read (and defragment, if necessary) incoming commands | |
195 | */ | |
e951bdc4 | 196 | struct fio_net_cmd *fio_net_recv_cmd(int sk) |
132159a5 | 197 | { |
a64e88da JA |
198 | struct fio_net_cmd cmd, *cmdret = NULL; |
199 | size_t cmd_size = 0, pdu_offset = 0; | |
fcee5ff6 | 200 | uint16_t crc; |
a64e88da JA |
201 | int ret, first = 1; |
202 | void *pdu = NULL; | |
132159a5 | 203 | |
a64e88da JA |
204 | do { |
205 | ret = fio_recv_data(sk, &cmd, sizeof(cmd)); | |
206 | if (ret) | |
207 | break; | |
132159a5 | 208 | |
a64e88da JA |
209 | /* We have a command, verify it and swap if need be */ |
210 | ret = verify_convert_cmd(&cmd); | |
211 | if (ret) | |
212 | break; | |
132159a5 | 213 | |
0b8f30a5 JA |
214 | if (first) { |
215 | /* if this is text, add room for \0 at the end */ | |
216 | cmd_size = sizeof(cmd) + cmd.pdu_len + 1; | |
217 | assert(!cmdret); | |
218 | } else | |
a64e88da | 219 | cmd_size += cmd.pdu_len; |
132159a5 | 220 | |
a64e88da | 221 | cmdret = realloc(cmdret, cmd_size); |
132159a5 | 222 | |
a64e88da JA |
223 | if (first) |
224 | memcpy(cmdret, &cmd, sizeof(cmd)); | |
67f15dcf JA |
225 | else if (cmdret->opcode != cmd.opcode) { |
226 | log_err("fio: fragment opcode mismatch (%d != %d)\n", | |
227 | cmdret->opcode, cmd.opcode); | |
228 | ret = 1; | |
229 | break; | |
230 | } | |
a64e88da JA |
231 | |
232 | if (!cmd.pdu_len) | |
233 | break; | |
234 | ||
235 | /* There's payload, get it */ | |
236 | pdu = (void *) cmdret->payload + pdu_offset; | |
237 | ret = fio_recv_data(sk, pdu, cmd.pdu_len); | |
238 | if (ret) | |
239 | break; | |
240 | ||
241 | /* Verify payload crc */ | |
25dfa848 | 242 | crc = fio_crc16(pdu, cmd.pdu_len); |
a64e88da JA |
243 | if (crc != cmd.pdu_crc16) { |
244 | log_err("fio: server bad crc on payload "); | |
245 | log_err("(got %x, wanted %x)\n", cmd.pdu_crc16, crc); | |
246 | ret = 1; | |
247 | break; | |
248 | } | |
249 | ||
250 | pdu_offset += cmd.pdu_len; | |
817f06bb JA |
251 | if (!first) |
252 | cmdret->pdu_len += cmd.pdu_len; | |
a64e88da JA |
253 | first = 0; |
254 | } while (cmd.flags & FIO_NET_CMD_F_MORE); | |
132159a5 | 255 | |
a64e88da JA |
256 | if (ret) { |
257 | free(cmdret); | |
258 | cmdret = NULL; | |
0b8f30a5 JA |
259 | } else if (cmdret) { |
260 | /* zero-terminate text input */ | |
084d1c6f JA |
261 | if (cmdret->pdu_len) { |
262 | if (cmdret->opcode == FIO_NET_CMD_TEXT) { | |
263 | struct cmd_text_pdu *pdu = (struct cmd_text_pdu *) cmdret->payload; | |
264 | char *buf = (char *) pdu->buf; | |
0b8f30a5 | 265 | |
084d1c6f JA |
266 | buf[pdu->buf_len ] = '\0'; |
267 | } else if (cmdret->opcode == FIO_NET_CMD_JOB) { | |
46bcd498 JA |
268 | struct cmd_job_pdu *pdu = (struct cmd_job_pdu *) cmdret->payload; |
269 | char *buf = (char *) pdu->buf; | |
270 | int len = le32_to_cpu(pdu->buf_len); | |
084d1c6f | 271 | |
46bcd498 | 272 | buf[len] = '\0'; |
084d1c6f | 273 | } |
0b8f30a5 | 274 | } |
084d1c6f | 275 | |
0b8f30a5 | 276 | /* frag flag is internal */ |
a64e88da | 277 | cmdret->flags &= ~FIO_NET_CMD_F_MORE; |
0b8f30a5 | 278 | } |
a64e88da JA |
279 | |
280 | return cmdret; | |
132159a5 JA |
281 | } |
282 | ||
53bd8dbc | 283 | void fio_net_cmd_crc_pdu(struct fio_net_cmd *cmd, const void *pdu) |
132159a5 JA |
284 | { |
285 | uint32_t pdu_len; | |
286 | ||
25dfa848 | 287 | cmd->cmd_crc16 = __cpu_to_le16(fio_crc16(cmd, FIO_NET_CMD_CRC_SZ)); |
132159a5 JA |
288 | |
289 | pdu_len = le32_to_cpu(cmd->pdu_len); | |
1b42725f JA |
290 | cmd->pdu_crc16 = __cpu_to_le16(fio_crc16(pdu, pdu_len)); |
291 | } | |
292 | ||
293 | void fio_net_cmd_crc(struct fio_net_cmd *cmd) | |
294 | { | |
295 | fio_net_cmd_crc_pdu(cmd, cmd->payload); | |
132159a5 JA |
296 | } |
297 | ||
af9c9fb3 JA |
298 | int fio_net_send_cmd(int fd, uint16_t opcode, const void *buf, off_t size, |
299 | uint64_t tag) | |
794d69ca | 300 | { |
7f868316 JA |
301 | struct fio_net_cmd *cmd = NULL; |
302 | size_t this_len, cur_len = 0; | |
794d69ca JA |
303 | int ret; |
304 | ||
305 | do { | |
306 | this_len = size; | |
b9d2f30a JA |
307 | if (this_len > FIO_SERVER_MAX_FRAGMENT_PDU) |
308 | this_len = FIO_SERVER_MAX_FRAGMENT_PDU; | |
794d69ca | 309 | |
7f868316 JA |
310 | if (!cmd || cur_len < sizeof(*cmd) + this_len) { |
311 | if (cmd) | |
312 | free(cmd); | |
313 | ||
314 | cur_len = sizeof(*cmd) + this_len; | |
315 | cmd = malloc(cur_len); | |
316 | } | |
794d69ca | 317 | |
af9c9fb3 | 318 | fio_init_net_cmd(cmd, opcode, buf, this_len, tag); |
794d69ca JA |
319 | |
320 | if (this_len < size) | |
ddcc0b69 | 321 | cmd->flags = __cpu_to_le32(FIO_NET_CMD_F_MORE); |
794d69ca JA |
322 | |
323 | fio_net_cmd_crc(cmd); | |
324 | ||
325 | ret = fio_send_data(fd, cmd, sizeof(*cmd) + this_len); | |
794d69ca JA |
326 | size -= this_len; |
327 | buf += this_len; | |
328 | } while (!ret && size); | |
329 | ||
7f868316 JA |
330 | if (cmd) |
331 | free(cmd); | |
332 | ||
794d69ca JA |
333 | return ret; |
334 | } | |
335 | ||
89c1707c | 336 | static int fio_net_send_simple_stack_cmd(int sk, uint16_t opcode, uint64_t tag) |
132159a5 | 337 | { |
178cde9f | 338 | struct fio_net_cmd cmd; |
132159a5 | 339 | |
af9c9fb3 | 340 | fio_init_net_cmd(&cmd, opcode, NULL, 0, tag); |
132159a5 JA |
341 | fio_net_cmd_crc(&cmd); |
342 | ||
343 | return fio_send_data(sk, &cmd, sizeof(cmd)); | |
344 | } | |
345 | ||
89c1707c JA |
346 | /* |
347 | * If 'list' is non-NULL, then allocate and store the sent command for | |
348 | * later verification. | |
349 | */ | |
350 | int fio_net_send_simple_cmd(int sk, uint16_t opcode, uint64_t tag, | |
351 | struct flist_head *list) | |
352 | { | |
353 | struct fio_net_int_cmd *cmd; | |
354 | int ret; | |
355 | ||
356 | if (!list) | |
357 | return fio_net_send_simple_stack_cmd(sk, opcode, tag); | |
358 | ||
359 | cmd = malloc(sizeof(*cmd)); | |
360 | ||
df380934 | 361 | fio_init_net_cmd(&cmd->cmd, opcode, NULL, 0, (uintptr_t) cmd); |
89c1707c JA |
362 | fio_net_cmd_crc(&cmd->cmd); |
363 | ||
364 | INIT_FLIST_HEAD(&cmd->list); | |
365 | gettimeofday(&cmd->tv, NULL); | |
366 | cmd->saved_tag = tag; | |
367 | ||
368 | ret = fio_send_data(sk, &cmd->cmd, sizeof(cmd->cmd)); | |
369 | if (ret) { | |
370 | free(cmd); | |
371 | return ret; | |
372 | } | |
373 | ||
374 | flist_add_tail(&cmd->list, list); | |
375 | return 0; | |
376 | } | |
377 | ||
9abea48b | 378 | static int fio_server_send_quit_cmd(void) |
437377e1 | 379 | { |
46c48f1f | 380 | dprint(FD_NET, "server: sending quit\n"); |
89c1707c | 381 | return fio_net_send_simple_cmd(server_fd, FIO_NET_CMD_QUIT, 0, NULL); |
437377e1 JA |
382 | } |
383 | ||
b9d2f30a | 384 | static int handle_run_cmd(struct fio_net_cmd *cmd) |
132159a5 | 385 | { |
11e950bd | 386 | struct cmd_end_pdu epdu; |
a64e88da | 387 | int ret; |
132159a5 | 388 | |
2e1df07d | 389 | ret = fio_backend(); |
11e950bd JA |
390 | |
391 | epdu.error = ret; | |
392 | fio_net_send_cmd(server_fd, FIO_NET_CMD_STOP, &epdu, sizeof(epdu), 0); | |
393 | ||
9abea48b | 394 | fio_server_send_quit_cmd(); |
81179eec | 395 | reset_fio_state(); |
8663ea65 | 396 | first_cmd_check = 0; |
81179eec JA |
397 | return ret; |
398 | } | |
399 | ||
b9d2f30a JA |
400 | static int handle_job_cmd(struct fio_net_cmd *cmd) |
401 | { | |
46bcd498 JA |
402 | struct cmd_job_pdu *pdu = (struct cmd_job_pdu *) cmd->payload; |
403 | void *buf = pdu->buf; | |
b9d2f30a JA |
404 | struct cmd_start_pdu spdu; |
405 | ||
46bcd498 JA |
406 | pdu->buf_len = le32_to_cpu(pdu->buf_len); |
407 | pdu->client_type = le32_to_cpu(pdu->client_type); | |
408 | ||
409 | if (parse_jobs_ini(buf, 1, 0, pdu->client_type)) { | |
b9d2f30a JA |
410 | fio_server_send_quit_cmd(); |
411 | return -1; | |
412 | } | |
413 | ||
414 | spdu.jobs = cpu_to_le32(thread_number); | |
415 | fio_net_send_cmd(server_fd, FIO_NET_CMD_START, &spdu, sizeof(spdu), 0); | |
416 | return 0; | |
417 | } | |
418 | ||
81179eec JA |
419 | static int handle_jobline_cmd(struct fio_net_cmd *cmd) |
420 | { | |
fa2ea806 JA |
421 | void *pdu = cmd->payload; |
422 | struct cmd_single_line_pdu *cslp; | |
423 | struct cmd_line_pdu *clp; | |
424 | unsigned long offset; | |
b9d2f30a | 425 | struct cmd_start_pdu spdu; |
fa2ea806 | 426 | char **argv; |
b9d2f30a | 427 | int i; |
81179eec | 428 | |
fa2ea806 JA |
429 | clp = pdu; |
430 | clp->lines = le16_to_cpu(clp->lines); | |
46bcd498 | 431 | clp->client_type = le16_to_cpu(clp->client_type); |
fa2ea806 JA |
432 | argv = malloc(clp->lines * sizeof(char *)); |
433 | offset = sizeof(*clp); | |
81179eec | 434 | |
fa2ea806 | 435 | dprint(FD_NET, "server: %d command line args\n", clp->lines); |
39e8e016 | 436 | |
fa2ea806 JA |
437 | for (i = 0; i < clp->lines; i++) { |
438 | cslp = pdu + offset; | |
439 | argv[i] = (char *) cslp->text; | |
440 | ||
441 | offset += sizeof(*cslp) + le16_to_cpu(cslp->len); | |
39e8e016 JA |
442 | dprint(FD_NET, "server: %d: %s\n", i, argv[i]); |
443 | } | |
81179eec | 444 | |
46bcd498 | 445 | if (parse_cmd_line(clp->lines, argv, clp->client_type)) { |
e6d1c668 | 446 | fio_server_send_quit_cmd(); |
fa2ea806 | 447 | free(argv); |
81179eec | 448 | return -1; |
e6d1c668 | 449 | } |
81179eec | 450 | |
fa2ea806 JA |
451 | free(argv); |
452 | ||
b9d2f30a JA |
453 | spdu.jobs = cpu_to_le32(thread_number); |
454 | fio_net_send_cmd(server_fd, FIO_NET_CMD_START, &spdu, sizeof(spdu), 0); | |
455 | return 0; | |
132159a5 JA |
456 | } |
457 | ||
c28e8e8c JA |
458 | static int handle_probe_cmd(struct fio_net_cmd *cmd) |
459 | { | |
460 | struct cmd_probe_pdu probe; | |
461 | ||
89c1707c JA |
462 | dprint(FD_NET, "server: sending probe reply\n"); |
463 | ||
c28e8e8c JA |
464 | memset(&probe, 0, sizeof(probe)); |
465 | gethostname((char *) probe.hostname, sizeof(probe.hostname)); | |
6eb24791 JA |
466 | #ifdef FIO_BIG_ENDIAN |
467 | probe.bigendian = 1; | |
468 | #endif | |
81179eec JA |
469 | probe.fio_major = FIO_MAJOR; |
470 | probe.fio_minor = FIO_MINOR; | |
471 | probe.fio_patch = FIO_PATCH; | |
c28e8e8c | 472 | |
cca84643 JA |
473 | probe.os = FIO_OS; |
474 | probe.arch = FIO_ARCH; | |
475 | ||
38fdef22 JA |
476 | probe.bpp = sizeof(void *); |
477 | ||
89c1707c | 478 | return fio_net_send_cmd(server_fd, FIO_NET_CMD_PROBE, &probe, sizeof(probe), cmd->tag); |
af9c9fb3 JA |
479 | } |
480 | ||
481 | static int handle_send_eta_cmd(struct fio_net_cmd *cmd) | |
482 | { | |
483 | struct jobs_eta *je; | |
484 | size_t size; | |
af9c9fb3 JA |
485 | int i; |
486 | ||
b814fb26 JA |
487 | if (!thread_number) |
488 | return 0; | |
489 | ||
490 | size = sizeof(*je) + thread_number * sizeof(char) + 1; | |
7f868316 JA |
491 | je = malloc(size); |
492 | memset(je, 0, size); | |
af9c9fb3 JA |
493 | |
494 | if (!calc_thread_status(je, 1)) { | |
495 | free(je); | |
496 | return 0; | |
497 | } | |
498 | ||
499 | dprint(FD_NET, "server sending status\n"); | |
500 | ||
501 | je->nr_running = cpu_to_le32(je->nr_running); | |
502 | je->nr_ramp = cpu_to_le32(je->nr_ramp); | |
503 | je->nr_pending = cpu_to_le32(je->nr_pending); | |
504 | je->files_open = cpu_to_le32(je->files_open); | |
af9c9fb3 JA |
505 | |
506 | for (i = 0; i < 2; i++) { | |
3e47bd25 JA |
507 | je->m_rate[i] = cpu_to_le32(je->m_rate[i]); |
508 | je->t_rate[i] = cpu_to_le32(je->t_rate[i]); | |
509 | je->m_iops[i] = cpu_to_le32(je->m_iops[i]); | |
510 | je->t_iops[i] = cpu_to_le32(je->t_iops[i]); | |
af9c9fb3 JA |
511 | je->rate[i] = cpu_to_le32(je->rate[i]); |
512 | je->iops[i] = cpu_to_le32(je->iops[i]); | |
513 | } | |
514 | ||
c1970b90 | 515 | je->elapsed_sec = cpu_to_le64(je->elapsed_sec); |
af9c9fb3 | 516 | je->eta_sec = cpu_to_le64(je->eta_sec); |
8c621fb2 | 517 | je->nr_threads = cpu_to_le32(je->nr_threads); |
af9c9fb3 | 518 | |
7f868316 | 519 | fio_net_send_cmd(server_fd, FIO_NET_CMD_ETA, je, size, cmd->tag); |
af9c9fb3 JA |
520 | free(je); |
521 | return 0; | |
c28e8e8c JA |
522 | } |
523 | ||
132159a5 JA |
524 | static int handle_command(struct fio_net_cmd *cmd) |
525 | { | |
526 | int ret; | |
527 | ||
89c1707c JA |
528 | dprint(FD_NET, "server: got op [%s], pdu=%u, tag=%lx\n", |
529 | fio_server_op(cmd->opcode), cmd->pdu_len, cmd->tag); | |
46c48f1f | 530 | |
132159a5 JA |
531 | switch (cmd->opcode) { |
532 | case FIO_NET_CMD_QUIT: | |
cc0df00a | 533 | fio_terminate_threads(TERMINATE_ALL); |
c28e8e8c | 534 | return -1; |
d7959186 | 535 | case FIO_NET_CMD_EXIT: |
132159a5 | 536 | exit_backend = 1; |
c28e8e8c | 537 | return -1; |
132159a5 | 538 | case FIO_NET_CMD_JOB: |
0b8f30a5 | 539 | ret = handle_job_cmd(cmd); |
132159a5 | 540 | break; |
81179eec JA |
541 | case FIO_NET_CMD_JOBLINE: |
542 | ret = handle_jobline_cmd(cmd); | |
543 | break; | |
c28e8e8c JA |
544 | case FIO_NET_CMD_PROBE: |
545 | ret = handle_probe_cmd(cmd); | |
546 | break; | |
af9c9fb3 JA |
547 | case FIO_NET_CMD_SEND_ETA: |
548 | ret = handle_send_eta_cmd(cmd); | |
549 | break; | |
b9d2f30a JA |
550 | case FIO_NET_CMD_RUN: |
551 | ret = handle_run_cmd(cmd); | |
552 | break; | |
132159a5 | 553 | default: |
89c1707c | 554 | log_err("fio: unknown opcode: %s\n",fio_server_op(cmd->opcode)); |
132159a5 JA |
555 | ret = 1; |
556 | } | |
557 | ||
558 | return ret; | |
559 | } | |
560 | ||
70e0c316 | 561 | static int handle_connection(int sk, int block) |
132159a5 JA |
562 | { |
563 | struct fio_net_cmd *cmd = NULL; | |
564 | int ret = 0; | |
565 | ||
566 | /* read forever */ | |
567 | while (!exit_backend) { | |
e951bdc4 JA |
568 | struct pollfd pfd = { |
569 | .fd = sk, | |
570 | .events = POLLIN, | |
571 | }; | |
572 | ||
573 | ret = 0; | |
574 | do { | |
575 | ret = poll(&pfd, 1, 100); | |
576 | if (ret < 0) { | |
577 | if (errno == EINTR) | |
578 | break; | |
579 | log_err("fio: poll: %s\n", strerror(errno)); | |
580 | break; | |
19c65179 JA |
581 | } else if (!ret) { |
582 | if (!block) | |
583 | return 0; | |
e951bdc4 | 584 | continue; |
19c65179 | 585 | } |
e951bdc4 JA |
586 | |
587 | if (pfd.revents & POLLIN) | |
588 | break; | |
589 | if (pfd.revents & (POLLERR|POLLHUP)) { | |
590 | ret = 1; | |
591 | break; | |
592 | } | |
19c65179 | 593 | } while (!exit_backend); |
e951bdc4 JA |
594 | |
595 | if (ret < 0) | |
596 | break; | |
597 | ||
598 | cmd = fio_net_recv_cmd(sk); | |
132159a5 | 599 | if (!cmd) { |
c28e8e8c | 600 | ret = -1; |
132159a5 JA |
601 | break; |
602 | } | |
603 | ||
132159a5 JA |
604 | ret = handle_command(cmd); |
605 | if (ret) | |
606 | break; | |
607 | ||
608 | free(cmd); | |
c77a99e7 | 609 | cmd = NULL; |
132159a5 JA |
610 | } |
611 | ||
612 | if (cmd) | |
613 | free(cmd); | |
614 | ||
615 | return ret; | |
616 | } | |
617 | ||
cc0df00a JA |
618 | void fio_server_idle_loop(void) |
619 | { | |
3ec62ec4 | 620 | if (!first_cmd_check) { |
5d7793aa | 621 | fio_net_send_simple_cmd(server_fd, FIO_NET_CMD_SERVER_START, 0, NULL); |
3ec62ec4 JA |
622 | first_cmd_check = 1; |
623 | } | |
cc0df00a | 624 | if (server_fd != -1) |
70e0c316 | 625 | handle_connection(server_fd, 0); |
cc0df00a JA |
626 | } |
627 | ||
50d16976 JA |
628 | static int accept_loop(int listen_sk) |
629 | { | |
bb447a27 | 630 | struct sockaddr_in addr; |
5ba13ea6 | 631 | fio_socklen_t len = sizeof(addr); |
009b1be4 | 632 | struct pollfd pfd; |
132159a5 | 633 | int ret, sk, flags, exitval = 0; |
50d16976 | 634 | |
60efd14e JA |
635 | dprint(FD_NET, "server enter accept loop\n"); |
636 | ||
009b1be4 JA |
637 | flags = fcntl(listen_sk, F_GETFL); |
638 | flags |= O_NONBLOCK; | |
639 | fcntl(listen_sk, F_SETFL, flags); | |
50d16976 | 640 | again: |
009b1be4 JA |
641 | pfd.fd = listen_sk; |
642 | pfd.events = POLLIN; | |
643 | do { | |
644 | ret = poll(&pfd, 1, 100); | |
645 | if (ret < 0) { | |
646 | if (errno == EINTR) | |
647 | break; | |
fcee5ff6 | 648 | log_err("fio: poll: %s\n", strerror(errno)); |
009b1be4 JA |
649 | goto out; |
650 | } else if (!ret) | |
651 | continue; | |
652 | ||
653 | if (pfd.revents & POLLIN) | |
654 | break; | |
655 | } while (!exit_backend); | |
656 | ||
657 | if (exit_backend) | |
658 | goto out; | |
659 | ||
6b976bfc | 660 | sk = accept(listen_sk, (struct sockaddr *) &addr, &len); |
50d16976 | 661 | if (sk < 0) { |
690e09ae | 662 | log_err("fio: accept: %s\n", strerror(errno)); |
50d16976 JA |
663 | return -1; |
664 | } | |
665 | ||
bb447a27 | 666 | dprint(FD_NET, "server: connect from %s\n", inet_ntoa(addr.sin_addr)); |
46c48f1f | 667 | |
37db14fe JA |
668 | server_fd = sk; |
669 | ||
70e0c316 | 670 | exitval = handle_connection(sk, 1); |
50d16976 | 671 | |
37db14fe | 672 | server_fd = -1; |
50d16976 | 673 | close(sk); |
5c341e9a | 674 | |
009b1be4 | 675 | if (!exit_backend) |
5c341e9a JA |
676 | goto again; |
677 | ||
009b1be4 | 678 | out: |
132159a5 | 679 | return exitval; |
50d16976 JA |
680 | } |
681 | ||
084d1c6f | 682 | int fio_server_text_output(int level, const char *buf, size_t len) |
37db14fe | 683 | { |
084d1c6f JA |
684 | struct cmd_text_pdu *pdu; |
685 | unsigned int tlen; | |
686 | struct timeval tv; | |
687 | ||
688 | if (server_fd == -1) | |
689 | return log_local_buf(buf, len); | |
690 | ||
691 | tlen = sizeof(*pdu) + len; | |
692 | pdu = malloc(tlen); | |
693 | ||
694 | pdu->level = __cpu_to_le32(level); | |
695 | pdu->buf_len = __cpu_to_le32(len); | |
696 | ||
697 | gettimeofday(&tv, NULL); | |
698 | pdu->log_sec = __cpu_to_le64(tv.tv_sec); | |
699 | pdu->log_usec = __cpu_to_le64(tv.tv_usec); | |
337d75a8 | 700 | |
084d1c6f JA |
701 | memcpy(pdu->buf, buf, len); |
702 | ||
703 | fio_net_send_cmd(server_fd, FIO_NET_CMD_TEXT, pdu, tlen, 0); | |
704 | free(pdu); | |
705 | return len; | |
142575e6 JA |
706 | } |
707 | ||
a64e88da JA |
708 | static void convert_io_stat(struct io_stat *dst, struct io_stat *src) |
709 | { | |
710 | dst->max_val = cpu_to_le64(src->max_val); | |
711 | dst->min_val = cpu_to_le64(src->min_val); | |
712 | dst->samples = cpu_to_le64(src->samples); | |
802ad4a8 JA |
713 | |
714 | /* | |
715 | * Encode to IEEE 754 for network transfer | |
716 | */ | |
717 | dst->mean.u.i = __cpu_to_le64(fio_double_to_uint64(src->mean.u.f)); | |
718 | dst->S.u.i = __cpu_to_le64(fio_double_to_uint64(src->S.u.f)); | |
a64e88da JA |
719 | } |
720 | ||
721 | static void convert_gs(struct group_run_stats *dst, struct group_run_stats *src) | |
722 | { | |
723 | int i; | |
724 | ||
725 | for (i = 0; i < 2; i++) { | |
726 | dst->max_run[i] = cpu_to_le64(src->max_run[i]); | |
727 | dst->min_run[i] = cpu_to_le64(src->min_run[i]); | |
728 | dst->max_bw[i] = cpu_to_le64(src->max_bw[i]); | |
729 | dst->min_bw[i] = cpu_to_le64(src->min_bw[i]); | |
730 | dst->io_kb[i] = cpu_to_le64(src->io_kb[i]); | |
731 | dst->agg[i] = cpu_to_le64(src->agg[i]); | |
732 | } | |
733 | ||
734 | dst->kb_base = cpu_to_le32(src->kb_base); | |
735 | dst->groupid = cpu_to_le32(src->groupid); | |
736 | } | |
737 | ||
738 | /* | |
739 | * Send a CMD_TS, which packs struct thread_stat and group_run_stats | |
740 | * into a single payload. | |
741 | */ | |
742 | void fio_server_send_ts(struct thread_stat *ts, struct group_run_stats *rs) | |
743 | { | |
744 | struct cmd_ts_pdu p; | |
745 | int i, j; | |
746 | ||
60efd14e JA |
747 | dprint(FD_NET, "server sending end stats\n"); |
748 | ||
317b3c8b JA |
749 | memset(&p, 0, sizeof(p)); |
750 | ||
a64e88da JA |
751 | strcpy(p.ts.name, ts->name); |
752 | strcpy(p.ts.verror, ts->verror); | |
753 | strcpy(p.ts.description, ts->description); | |
754 | ||
2f122b13 JA |
755 | p.ts.error = cpu_to_le32(ts->error); |
756 | p.ts.thread_number = cpu_to_le32(ts->thread_number); | |
757 | p.ts.groupid = cpu_to_le32(ts->groupid); | |
758 | p.ts.pid = cpu_to_le32(ts->pid); | |
759 | p.ts.members = cpu_to_le32(ts->members); | |
a64e88da JA |
760 | |
761 | for (i = 0; i < 2; i++) { | |
762 | convert_io_stat(&p.ts.clat_stat[i], &ts->clat_stat[i]); | |
763 | convert_io_stat(&p.ts.slat_stat[i], &ts->slat_stat[i]); | |
764 | convert_io_stat(&p.ts.lat_stat[i], &ts->lat_stat[i]); | |
765 | convert_io_stat(&p.ts.bw_stat[i], &ts->bw_stat[i]); | |
766 | } | |
767 | ||
768 | p.ts.usr_time = cpu_to_le64(ts->usr_time); | |
769 | p.ts.sys_time = cpu_to_le64(ts->sys_time); | |
770 | p.ts.ctx = cpu_to_le64(ts->ctx); | |
771 | p.ts.minf = cpu_to_le64(ts->minf); | |
772 | p.ts.majf = cpu_to_le64(ts->majf); | |
773 | p.ts.clat_percentiles = cpu_to_le64(ts->clat_percentiles); | |
802ad4a8 JA |
774 | |
775 | for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) { | |
cfc03e46 JA |
776 | fio_fp64_t *src = &ts->percentile_list[i]; |
777 | fio_fp64_t *dst = &p.ts.percentile_list[i]; | |
802ad4a8 | 778 | |
cfc03e46 | 779 | dst->u.i = __cpu_to_le64(fio_double_to_uint64(src->u.f)); |
802ad4a8 | 780 | } |
a64e88da JA |
781 | |
782 | for (i = 0; i < FIO_IO_U_MAP_NR; i++) { | |
783 | p.ts.io_u_map[i] = cpu_to_le32(ts->io_u_map[i]); | |
784 | p.ts.io_u_submit[i] = cpu_to_le32(ts->io_u_submit[i]); | |
785 | p.ts.io_u_complete[i] = cpu_to_le32(ts->io_u_complete[i]); | |
786 | } | |
787 | ||
788 | for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) { | |
789 | p.ts.io_u_lat_u[i] = cpu_to_le32(ts->io_u_lat_u[i]); | |
790 | p.ts.io_u_lat_m[i] = cpu_to_le32(ts->io_u_lat_m[i]); | |
791 | } | |
792 | ||
793 | for (i = 0; i < 2; i++) | |
794 | for (j = 0; j < FIO_IO_U_PLAT_NR; j++) | |
795 | p.ts.io_u_plat[i][j] = cpu_to_le32(ts->io_u_plat[i][j]); | |
796 | ||
797 | for (i = 0; i < 3; i++) { | |
798 | p.ts.total_io_u[i] = cpu_to_le64(ts->total_io_u[i]); | |
93eee04a | 799 | p.ts.short_io_u[i] = cpu_to_le64(ts->short_io_u[i]); |
a64e88da JA |
800 | } |
801 | ||
93eee04a | 802 | p.ts.total_submit = cpu_to_le64(ts->total_submit); |
a64e88da JA |
803 | p.ts.total_complete = cpu_to_le64(ts->total_complete); |
804 | ||
805 | for (i = 0; i < 2; i++) { | |
806 | p.ts.io_bytes[i] = cpu_to_le64(ts->io_bytes[i]); | |
807 | p.ts.runtime[i] = cpu_to_le64(ts->runtime[i]); | |
808 | } | |
809 | ||
810 | p.ts.total_run_time = cpu_to_le64(ts->total_run_time); | |
811 | p.ts.continue_on_error = cpu_to_le16(ts->continue_on_error); | |
812 | p.ts.total_err_count = cpu_to_le64(ts->total_err_count); | |
ddcc0b69 JA |
813 | p.ts.first_error = cpu_to_le32(ts->first_error); |
814 | p.ts.kb_base = cpu_to_le32(ts->kb_base); | |
a64e88da JA |
815 | |
816 | convert_gs(&p.rs, rs); | |
817 | ||
af9c9fb3 | 818 | fio_net_send_cmd(server_fd, FIO_NET_CMD_TS, &p, sizeof(p), 0); |
a64e88da JA |
819 | } |
820 | ||
821 | void fio_server_send_gs(struct group_run_stats *rs) | |
822 | { | |
823 | struct group_run_stats gs; | |
824 | ||
60efd14e JA |
825 | dprint(FD_NET, "server sending group run stats\n"); |
826 | ||
a64e88da | 827 | convert_gs(&gs, rs); |
af9c9fb3 | 828 | fio_net_send_cmd(server_fd, FIO_NET_CMD_GS, &gs, sizeof(gs), 0); |
cf451d1e JA |
829 | } |
830 | ||
d09a64a0 JA |
831 | static void convert_agg(struct disk_util_agg *dst, struct disk_util_agg *src) |
832 | { | |
833 | int i; | |
834 | ||
835 | for (i = 0; i < 2; i++) { | |
836 | dst->ios[i] = cpu_to_le32(src->ios[i]); | |
837 | dst->merges[i] = cpu_to_le32(src->merges[i]); | |
838 | dst->sectors[i] = cpu_to_le64(src->sectors[i]); | |
839 | dst->ticks[i] = cpu_to_le32(src->ticks[i]); | |
840 | } | |
841 | ||
842 | dst->io_ticks = cpu_to_le32(src->io_ticks); | |
843 | dst->time_in_queue = cpu_to_le32(src->time_in_queue); | |
844 | dst->slavecount = cpu_to_le32(src->slavecount); | |
845 | dst->max_util.u.i = __cpu_to_le64(fio_double_to_uint64(src->max_util.u.f)); | |
846 | } | |
847 | ||
848 | static void convert_dus(struct disk_util_stat *dst, struct disk_util_stat *src) | |
849 | { | |
850 | int i; | |
851 | ||
852 | strcpy((char *) dst->name, (char *) src->name); | |
853 | ||
854 | for (i = 0; i < 2; i++) { | |
855 | dst->ios[i] = cpu_to_le32(src->ios[i]); | |
856 | dst->merges[i] = cpu_to_le32(src->merges[i]); | |
857 | dst->sectors[i] = cpu_to_le64(src->sectors[i]); | |
858 | dst->ticks[i] = cpu_to_le32(src->ticks[i]); | |
859 | } | |
860 | ||
861 | dst->io_ticks = cpu_to_le32(src->io_ticks); | |
862 | dst->time_in_queue = cpu_to_le32(src->time_in_queue); | |
863 | dst->msec = cpu_to_le64(src->msec); | |
864 | } | |
865 | ||
866 | void fio_server_send_du(void) | |
867 | { | |
868 | struct disk_util *du; | |
869 | struct flist_head *entry; | |
870 | struct cmd_du_pdu pdu; | |
871 | ||
872 | dprint(FD_NET, "server: sending disk_util %d\n", !flist_empty(&disk_list)); | |
873 | ||
0766d92e JA |
874 | memset(&pdu, 0, sizeof(pdu)); |
875 | ||
d09a64a0 JA |
876 | flist_for_each(entry, &disk_list) { |
877 | du = flist_entry(entry, struct disk_util, list); | |
878 | ||
879 | convert_dus(&pdu.dus, &du->dus); | |
880 | convert_agg(&pdu.agg, &du->agg); | |
881 | ||
882 | fio_net_send_cmd(server_fd, FIO_NET_CMD_DU, &pdu, sizeof(pdu), 0); | |
883 | } | |
884 | } | |
885 | ||
53bd8dbc JA |
886 | /* |
887 | * Send a command with a separate PDU, not inlined in the command | |
888 | */ | |
889 | static int fio_send_cmd_ext_pdu(int sk, uint16_t opcode, const void *buf, | |
890 | off_t size, uint64_t tag, uint32_t flags) | |
891 | { | |
892 | struct fio_net_cmd cmd; | |
893 | struct iovec iov[2]; | |
894 | ||
895 | iov[0].iov_base = &cmd; | |
896 | iov[0].iov_len = sizeof(cmd); | |
897 | iov[1].iov_base = (void *) buf; | |
898 | iov[1].iov_len = size; | |
899 | ||
900 | __fio_init_net_cmd(&cmd, opcode, size, tag); | |
901 | cmd.flags = __cpu_to_le32(flags); | |
902 | fio_net_cmd_crc_pdu(&cmd, buf); | |
903 | ||
904 | return fio_sendv_data(server_fd, iov, 2); | |
905 | } | |
906 | ||
1b42725f JA |
907 | int fio_send_iolog(struct thread_data *td, struct io_log *log, const char *name) |
908 | { | |
f5ed765a | 909 | struct cmd_iolog_pdu pdu; |
1b42725f JA |
910 | z_stream stream; |
911 | void *out_pdu; | |
53bd8dbc | 912 | int i, ret = 0; |
1b42725f | 913 | |
2f122b13 | 914 | pdu.thread_number = cpu_to_le32(td->thread_number); |
f5ed765a JA |
915 | pdu.nr_samples = __cpu_to_le32(log->nr_samples); |
916 | pdu.log_type = cpu_to_le32(log->log_type); | |
917 | strcpy((char *) pdu.name, name); | |
1b42725f JA |
918 | |
919 | for (i = 0; i < log->nr_samples; i++) { | |
f5ed765a | 920 | struct io_sample *s = &log->log[i]; |
1b42725f | 921 | |
f5ed765a JA |
922 | s->time = cpu_to_le64(s->time); |
923 | s->val = cpu_to_le64(s->val); | |
924 | s->ddir = cpu_to_le32(s->ddir); | |
925 | s->bs = cpu_to_le32(s->bs); | |
1b42725f JA |
926 | } |
927 | ||
928 | /* | |
929 | * Dirty - since the log is potentially huge, compress it into | |
930 | * FIO_SERVER_MAX_FRAGMENT_PDU chunks and let the receiving | |
931 | * side defragment it. | |
932 | */ | |
933 | out_pdu = malloc(FIO_SERVER_MAX_FRAGMENT_PDU); | |
934 | ||
935 | stream.zalloc = Z_NULL; | |
936 | stream.zfree = Z_NULL; | |
937 | stream.opaque = Z_NULL; | |
938 | ||
939 | if (deflateInit(&stream, Z_DEFAULT_COMPRESSION) != Z_OK) { | |
53bd8dbc JA |
940 | ret = 1; |
941 | goto err; | |
1b42725f JA |
942 | } |
943 | ||
944 | /* | |
f5ed765a | 945 | * Send header first, it's not compressed. |
1b42725f | 946 | */ |
53bd8dbc JA |
947 | ret = fio_send_cmd_ext_pdu(server_fd, FIO_NET_CMD_IOLOG, &pdu, |
948 | sizeof(pdu), 0, FIO_NET_CMD_F_MORE); | |
949 | if (ret) | |
950 | goto err_zlib; | |
1b42725f | 951 | |
f5ed765a JA |
952 | stream.next_in = (void *) log->log; |
953 | stream.avail_in = log->nr_samples * sizeof(struct io_sample); | |
1b42725f JA |
954 | |
955 | do { | |
53bd8dbc JA |
956 | unsigned int this_len, flags = 0; |
957 | int ret; | |
1b42725f JA |
958 | |
959 | stream.avail_out = FIO_SERVER_MAX_FRAGMENT_PDU; | |
960 | stream.next_out = out_pdu; | |
3c547fe0 JA |
961 | ret = deflate(&stream, Z_FINISH); |
962 | /* may be Z_OK, or Z_STREAM_END */ | |
963 | if (ret < 0) | |
964 | goto err_zlib; | |
1b42725f JA |
965 | |
966 | this_len = FIO_SERVER_MAX_FRAGMENT_PDU - stream.avail_out; | |
967 | ||
1b42725f | 968 | if (stream.avail_in) |
53bd8dbc | 969 | flags = FIO_NET_CMD_F_MORE; |
1b42725f | 970 | |
53bd8dbc JA |
971 | ret = fio_send_cmd_ext_pdu(server_fd, FIO_NET_CMD_IOLOG, |
972 | out_pdu, this_len, 0, flags); | |
973 | if (ret) | |
974 | goto err_zlib; | |
1b42725f JA |
975 | } while (stream.avail_in); |
976 | ||
53bd8dbc | 977 | err_zlib: |
1b42725f | 978 | deflateEnd(&stream); |
53bd8dbc JA |
979 | err: |
980 | free(out_pdu); | |
981 | return ret; | |
1b42725f JA |
982 | } |
983 | ||
2f122b13 | 984 | void fio_server_send_add_job(struct thread_data *td) |
807f9971 JA |
985 | { |
986 | struct cmd_add_job_pdu pdu; | |
807f9971 | 987 | |
731e30a2 | 988 | memset(&pdu, 0, sizeof(pdu)); |
2f122b13 JA |
989 | pdu.thread_number = cpu_to_le32(td->thread_number); |
990 | pdu.groupid = cpu_to_le32(td->groupid); | |
991 | convert_thread_options_to_net(&pdu.top, &td->o); | |
807f9971 JA |
992 | |
993 | fio_net_send_cmd(server_fd, FIO_NET_CMD_ADD_JOB, &pdu, sizeof(pdu), 0); | |
994 | } | |
995 | ||
87aa8f19 | 996 | static int fio_init_server_ip(void) |
81179eec | 997 | { |
811826be JA |
998 | struct sockaddr *addr; |
999 | fio_socklen_t socklen; | |
87aa8f19 | 1000 | int sk, opt; |
81179eec | 1001 | |
811826be JA |
1002 | if (use_ipv6) |
1003 | sk = socket(AF_INET6, SOCK_STREAM, 0); | |
1004 | else | |
1005 | sk = socket(AF_INET, SOCK_STREAM, 0); | |
1006 | ||
81179eec JA |
1007 | if (sk < 0) { |
1008 | log_err("fio: socket: %s\n", strerror(errno)); | |
1009 | return -1; | |
1010 | } | |
1011 | ||
1012 | opt = 1; | |
1013 | if (setsockopt(sk, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt)) < 0) { | |
1014 | log_err("fio: setsockopt: %s\n", strerror(errno)); | |
b94cba47 | 1015 | close(sk); |
81179eec JA |
1016 | return -1; |
1017 | } | |
1018 | #ifdef SO_REUSEPORT | |
6eb24791 | 1019 | if (setsockopt(sk, SOL_SOCKET, SO_REUSEPORT, &opt, sizeof(opt)) < 0) { |
81179eec | 1020 | log_err("fio: setsockopt: %s\n", strerror(errno)); |
b94cba47 | 1021 | close(sk); |
81179eec JA |
1022 | return -1; |
1023 | } | |
1024 | #endif | |
1025 | ||
811826be JA |
1026 | if (use_ipv6) { |
1027 | addr = (struct sockaddr *) &saddr_in6; | |
1028 | socklen = sizeof(saddr_in6); | |
1029 | saddr_in6.sin6_family = AF_INET6; | |
1030 | } else { | |
1031 | addr = (struct sockaddr *) &saddr_in; | |
1032 | socklen = sizeof(saddr_in); | |
1033 | saddr_in.sin_family = AF_INET; | |
1034 | } | |
81179eec | 1035 | |
811826be | 1036 | if (bind(sk, addr, socklen) < 0) { |
81179eec | 1037 | log_err("fio: bind: %s\n", strerror(errno)); |
b94cba47 | 1038 | close(sk); |
81179eec JA |
1039 | return -1; |
1040 | } | |
1041 | ||
87aa8f19 JA |
1042 | return sk; |
1043 | } | |
1044 | ||
1045 | static int fio_init_server_sock(void) | |
1046 | { | |
1047 | struct sockaddr_un addr; | |
1048 | fio_socklen_t len; | |
1049 | mode_t mode; | |
1050 | int sk; | |
1051 | ||
1052 | sk = socket(AF_UNIX, SOCK_STREAM, 0); | |
1053 | if (sk < 0) { | |
1054 | log_err("fio: socket: %s\n", strerror(errno)); | |
1055 | return -1; | |
1056 | } | |
1057 | ||
1058 | mode = umask(000); | |
1059 | ||
1060 | memset(&addr, 0, sizeof(addr)); | |
1061 | addr.sun_family = AF_UNIX; | |
1062 | strcpy(addr.sun_path, bind_sock); | |
1063 | unlink(bind_sock); | |
1064 | ||
1065 | len = sizeof(addr.sun_family) + strlen(bind_sock) + 1; | |
1066 | ||
1067 | if (bind(sk, (struct sockaddr *) &addr, len) < 0) { | |
1068 | log_err("fio: bind: %s\n", strerror(errno)); | |
b94cba47 | 1069 | close(sk); |
87aa8f19 JA |
1070 | return -1; |
1071 | } | |
1072 | ||
1073 | umask(mode); | |
1074 | return sk; | |
1075 | } | |
1076 | ||
1077 | static int fio_init_server_connection(void) | |
1078 | { | |
bebe6398 | 1079 | char bind_str[128]; |
87aa8f19 JA |
1080 | int sk; |
1081 | ||
1082 | dprint(FD_NET, "starting server\n"); | |
1083 | ||
1084 | if (!bind_sock) | |
1085 | sk = fio_init_server_ip(); | |
1086 | else | |
1087 | sk = fio_init_server_sock(); | |
1088 | ||
1089 | if (sk < 0) | |
1090 | return sk; | |
1091 | ||
811826be JA |
1092 | if (!bind_sock) { |
1093 | char *p, port[16]; | |
1094 | const void *src; | |
1095 | int af; | |
1096 | ||
1097 | if (use_ipv6) { | |
1098 | af = AF_INET6; | |
1099 | src = &saddr_in6.sin6_addr; | |
1100 | } else { | |
1101 | af = AF_INET; | |
1102 | src = &saddr_in.sin_addr; | |
1103 | } | |
1104 | ||
1105 | p = (char *) inet_ntop(af, src, bind_str, sizeof(bind_str)); | |
1106 | ||
1107 | sprintf(port, ",%u", fio_net_port); | |
1108 | if (p) | |
1109 | strcat(p, port); | |
1110 | else | |
1111 | strcpy(bind_str, port); | |
1112 | } else | |
bebe6398 JA |
1113 | strcpy(bind_str, bind_sock); |
1114 | ||
1115 | log_info("fio: server listening on %s\n", bind_str); | |
1116 | ||
89c1707c | 1117 | if (listen(sk, 0) < 0) { |
81179eec JA |
1118 | log_err("fio: listen: %s\n", strerror(errno)); |
1119 | return -1; | |
1120 | } | |
1121 | ||
87aa8f19 JA |
1122 | return sk; |
1123 | } | |
1124 | ||
3ec62ec4 JA |
1125 | int fio_server_parse_host(const char *host, int *ipv6, struct in_addr *inp, |
1126 | struct in6_addr *inp6) | |
1127 | ||
1128 | { | |
1129 | int ret = 0; | |
1130 | ||
1131 | if (*ipv6) | |
1132 | ret = inet_pton(AF_INET6, host, inp6); | |
1133 | else | |
1134 | ret = inet_pton(AF_INET, host, inp); | |
1135 | ||
1136 | if (ret != 1) { | |
1137 | struct hostent *hent; | |
1138 | ||
1139 | hent = gethostbyname(host); | |
1140 | if (!hent) { | |
1141 | log_err("fio: failed to resolve <%s>\n", host); | |
1142 | return 0; | |
1143 | } | |
1144 | ||
1145 | if (*ipv6) { | |
1146 | if (hent->h_addrtype != AF_INET6) { | |
1147 | log_info("fio: falling back to IPv4\n"); | |
1148 | *ipv6 = 0; | |
1149 | } else | |
1150 | memcpy(inp6, hent->h_addr_list[0], 16); | |
1151 | } | |
1152 | if (!*ipv6) { | |
1153 | if (hent->h_addrtype != AF_INET) { | |
1154 | log_err("fio: lookup type mismatch\n"); | |
1155 | return 0; | |
1156 | } | |
1157 | memcpy(inp, hent->h_addr_list[0], 4); | |
1158 | } | |
1159 | ret = 1; | |
1160 | } | |
1161 | ||
1162 | return !(ret == 1); | |
1163 | } | |
1164 | ||
660a2bfb JA |
1165 | /* |
1166 | * Parse a host/ip/port string. Reads from 'str'. | |
1167 | * | |
1168 | * Outputs: | |
1169 | * | |
1170 | * For IPv4: | |
1171 | * *ptr is the host, *port is the port, inp is the destination. | |
1172 | * For IPv6: | |
1173 | * *ptr is the host, *port is the port, inp6 is the dest, and *ipv6 is 1. | |
1174 | * For local domain sockets: | |
1175 | * *ptr is the filename, *is_sock is 1. | |
1176 | */ | |
bebe6398 | 1177 | int fio_server_parse_string(const char *str, char **ptr, int *is_sock, |
811826be JA |
1178 | int *port, struct in_addr *inp, |
1179 | struct in6_addr *inp6, int *ipv6) | |
bebe6398 | 1180 | { |
76867621 JA |
1181 | const char *host = str; |
1182 | char *portp; | |
3ec62ec4 | 1183 | int lport = 0; |
76867621 | 1184 | |
bebe6398 JA |
1185 | *ptr = NULL; |
1186 | *is_sock = 0; | |
6d2cf394 | 1187 | *port = fio_net_port; |
811826be | 1188 | *ipv6 = 0; |
bebe6398 JA |
1189 | |
1190 | if (!strncmp(str, "sock:", 5)) { | |
1191 | *ptr = strdup(str + 5); | |
1192 | *is_sock = 1; | |
76867621 JA |
1193 | |
1194 | return 0; | |
1195 | } | |
1196 | ||
1197 | /* | |
1198 | * Is it ip:<ip or host>:port | |
1199 | */ | |
1200 | if (!strncmp(host, "ip:", 3)) | |
1201 | host += 3; | |
1202 | else if (!strncmp(host, "ip4:", 4)) | |
1203 | host += 4; | |
1204 | else if (!strncmp(host, "ip6:", 4)) { | |
1205 | host += 4; | |
1206 | *ipv6 = 1; | |
1207 | } else if (host[0] == ':') { | |
1208 | /* String is :port */ | |
1209 | host++; | |
1210 | lport = atoi(host); | |
1211 | if (!lport || lport > 65535) { | |
1212 | log_err("fio: bad server port %u\n", port); | |
1213 | return 1; | |
1214 | } | |
1215 | /* no hostname given, we are done */ | |
1216 | *port = lport; | |
1217 | return 0; | |
1218 | } | |
1219 | ||
1220 | /* | |
1221 | * If no port seen yet, check if there's a last ':' at the end | |
1222 | */ | |
1223 | if (!lport) { | |
1224 | portp = strchr(host, ','); | |
1225 | if (portp) { | |
1226 | *portp = '\0'; | |
1227 | portp++; | |
1228 | lport = atoi(portp); | |
bebe6398 JA |
1229 | if (!lport || lport > 65535) { |
1230 | log_err("fio: bad server port %u\n", port); | |
1231 | return 1; | |
1232 | } | |
bebe6398 | 1233 | } |
76867621 | 1234 | } |
bebe6398 | 1235 | |
76867621 JA |
1236 | if (lport) |
1237 | *port = lport; | |
bebe6398 | 1238 | |
76867621 JA |
1239 | if (!strlen(host)) |
1240 | return 0; | |
bebe6398 | 1241 | |
76867621 | 1242 | *ptr = strdup(host); |
811826be | 1243 | |
3ec62ec4 JA |
1244 | if (fio_server_parse_host(*ptr, ipv6, inp, inp6)) { |
1245 | free(*ptr); | |
1246 | *ptr = NULL; | |
1247 | return 1; | |
bebe6398 JA |
1248 | } |
1249 | ||
1250 | if (*port == 0) | |
1251 | *port = fio_net_port; | |
1252 | ||
1253 | return 0; | |
1254 | } | |
1255 | ||
87aa8f19 JA |
1256 | /* |
1257 | * Server arg should be one of: | |
1258 | * | |
1259 | * sock:/path/to/socket | |
1260 | * ip:1.2.3.4 | |
1261 | * 1.2.3.4 | |
1262 | * | |
1263 | * Where sock uses unix domain sockets, and ip binds the server to | |
1264 | * a specific interface. If no arguments are given to the server, it | |
1265 | * uses IP and binds to 0.0.0.0. | |
1266 | * | |
1267 | */ | |
1268 | static int fio_handle_server_arg(void) | |
1269 | { | |
6d2cf394 | 1270 | int port = fio_net_port; |
a7de0a11 | 1271 | int is_sock, ret = 0; |
bebe6398 | 1272 | |
87aa8f19 JA |
1273 | saddr_in.sin_addr.s_addr = htonl(INADDR_ANY); |
1274 | ||
1275 | if (!fio_server_arg) | |
a7de0a11 | 1276 | goto out; |
87aa8f19 | 1277 | |
4e5b8fb8 | 1278 | ret = fio_server_parse_string(fio_server_arg, &bind_sock, &is_sock, |
811826be JA |
1279 | &port, &saddr_in.sin_addr, |
1280 | &saddr_in6.sin6_addr, &use_ipv6); | |
4e5b8fb8 JA |
1281 | |
1282 | if (!is_sock && bind_sock) { | |
1283 | free(bind_sock); | |
1284 | bind_sock = NULL; | |
1285 | } | |
1286 | ||
a7de0a11 | 1287 | out: |
6d2cf394 JA |
1288 | fio_net_port = port; |
1289 | saddr_in.sin_port = htons(port); | |
811826be | 1290 | saddr_in6.sin6_port = htons(port); |
4e5b8fb8 | 1291 | return ret; |
87aa8f19 JA |
1292 | } |
1293 | ||
1294 | static int fio_server(void) | |
1295 | { | |
1296 | int sk, ret; | |
1297 | ||
1298 | dprint(FD_NET, "starting server\n"); | |
1299 | ||
1300 | if (fio_handle_server_arg()) | |
1301 | return -1; | |
1302 | ||
1303 | sk = fio_init_server_connection(); | |
1304 | if (sk < 0) | |
1305 | return -1; | |
81179eec JA |
1306 | |
1307 | ret = accept_loop(sk); | |
87aa8f19 | 1308 | |
81179eec | 1309 | close(sk); |
87aa8f19 JA |
1310 | |
1311 | if (fio_server_arg) { | |
1312 | free(fio_server_arg); | |
1313 | fio_server_arg = NULL; | |
1314 | } | |
bebe6398 JA |
1315 | if (bind_sock) |
1316 | free(bind_sock); | |
87aa8f19 | 1317 | |
81179eec JA |
1318 | return ret; |
1319 | } | |
1320 | ||
7b821684 | 1321 | void fio_server_got_signal(int signal) |
9abea48b | 1322 | { |
7b821684 JA |
1323 | if (signal == SIGPIPE) |
1324 | server_fd = -1; | |
1325 | else { | |
1326 | log_info("\nfio: terminating on signal %d\n", signal); | |
1327 | exit_backend = 1; | |
1328 | } | |
9abea48b JA |
1329 | } |
1330 | ||
13755d94 JA |
1331 | static int check_existing_pidfile(const char *pidfile) |
1332 | { | |
1333 | struct stat sb; | |
1334 | char buf[16]; | |
1335 | pid_t pid; | |
1336 | FILE *f; | |
1337 | ||
1338 | if (stat(pidfile, &sb)) | |
1339 | return 0; | |
1340 | ||
1341 | f = fopen(pidfile, "r"); | |
1342 | if (!f) | |
1343 | return 0; | |
1344 | ||
bfc3b179 | 1345 | if (fread(buf, sb.st_size, 1, f) <= 0) { |
13755d94 JA |
1346 | fclose(f); |
1347 | return 1; | |
1348 | } | |
1349 | fclose(f); | |
1350 | ||
1351 | pid = atoi(buf); | |
1352 | if (kill(pid, SIGCONT) < 0) | |
ea5aa1be | 1353 | return errno != ESRCH; |
13755d94 JA |
1354 | |
1355 | return 1; | |
1356 | } | |
1357 | ||
1358 | static int write_pid(pid_t pid, const char *pidfile) | |
402668f3 JA |
1359 | { |
1360 | FILE *fpid; | |
1361 | ||
1362 | fpid = fopen(pidfile, "w"); | |
1363 | if (!fpid) { | |
1364 | log_err("fio: failed opening pid file %s\n", pidfile); | |
13755d94 | 1365 | return 1; |
402668f3 JA |
1366 | } |
1367 | ||
1368 | fprintf(fpid, "%u\n", (unsigned int) pid); | |
13755d94 JA |
1369 | fclose(fpid); |
1370 | return 0; | |
402668f3 JA |
1371 | } |
1372 | ||
1373 | /* | |
1374 | * If pidfile is specified, background us. | |
1375 | */ | |
1376 | int fio_start_server(char *pidfile) | |
e46d8091 JA |
1377 | { |
1378 | pid_t pid; | |
402668f3 | 1379 | int ret; |
e46d8091 | 1380 | |
93bcfd20 | 1381 | #if defined(WIN32) |
905c78b9 JA |
1382 | WSADATA wsd; |
1383 | WSAStartup(MAKEWORD(2,2), &wsd); | |
93bcfd20 BC |
1384 | #endif |
1385 | ||
402668f3 | 1386 | if (!pidfile) |
e46d8091 JA |
1387 | return fio_server(); |
1388 | ||
13755d94 JA |
1389 | if (check_existing_pidfile(pidfile)) { |
1390 | log_err("fio: pidfile %s exists and server appears alive\n", | |
1391 | pidfile); | |
1392 | return -1; | |
1393 | } | |
1394 | ||
e46d8091 JA |
1395 | pid = fork(); |
1396 | if (pid < 0) { | |
13755d94 | 1397 | log_err("fio: failed server fork: %s", strerror(errno)); |
402668f3 | 1398 | free(pidfile); |
c28e8e8c | 1399 | return -1; |
402668f3 | 1400 | } else if (pid) { |
13755d94 JA |
1401 | int ret = write_pid(pid, pidfile); |
1402 | ||
1403 | exit(ret); | |
402668f3 | 1404 | } |
e46d8091 JA |
1405 | |
1406 | setsid(); | |
13755d94 JA |
1407 | openlog("fio", LOG_NDELAY|LOG_NOWAIT|LOG_PID, LOG_USER); |
1408 | log_syslog = 1; | |
e46d8091 JA |
1409 | close(STDIN_FILENO); |
1410 | close(STDOUT_FILENO); | |
1411 | close(STDERR_FILENO); | |
1412 | f_out = NULL; | |
1413 | f_err = NULL; | |
402668f3 JA |
1414 | |
1415 | ret = fio_server(); | |
1416 | ||
1417 | closelog(); | |
1418 | unlink(pidfile); | |
1419 | free(pidfile); | |
1420 | return ret; | |
e46d8091 | 1421 | } |
87aa8f19 | 1422 | |
bebe6398 | 1423 | void fio_server_set_arg(const char *arg) |
87aa8f19 JA |
1424 | { |
1425 | fio_server_arg = strdup(arg); | |
1426 | } |