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 | ||
5235f626 | 71 | static ssize_t iov_total_len(const struct iovec *iov, int count) |
132159a5 | 72 | { |
5235f626 | 73 | ssize_t ret = 0; |
794d69ca | 74 | |
5235f626 JA |
75 | while (count--) { |
76 | ret += iov->iov_len; | |
77 | iov++; | |
78 | } | |
79 | ||
80 | return ret; | |
81 | } | |
132159a5 | 82 | |
5235f626 JA |
83 | static int fio_sendv_data(int sk, struct iovec *iov, int count) |
84 | { | |
85 | ssize_t total_len = iov_total_len(iov, count); | |
86 | ssize_t ret; | |
87 | ||
88 | do { | |
89 | ret = writev(sk, iov, count); | |
132159a5 | 90 | if (ret > 0) { |
5235f626 JA |
91 | total_len -= ret; |
92 | if (!total_len) | |
132159a5 | 93 | break; |
5235f626 JA |
94 | |
95 | while (ret) { | |
96 | if (ret >= iov->iov_len) { | |
97 | ret -= iov->iov_len; | |
98 | iov++; | |
99 | continue; | |
100 | } | |
101 | iov->iov_base += ret; | |
102 | iov->iov_len -= ret; | |
103 | ret = 0; | |
104 | } | |
132159a5 JA |
105 | } else if (!ret) |
106 | break; | |
107 | else if (errno == EAGAIN || errno == EINTR) | |
108 | continue; | |
7b821684 JA |
109 | else |
110 | break; | |
132159a5 JA |
111 | } while (!exit_backend); |
112 | ||
5235f626 | 113 | if (!total_len) |
132159a5 JA |
114 | return 0; |
115 | ||
8b4e61b2 JA |
116 | if (errno) |
117 | return -errno; | |
118 | ||
132159a5 JA |
119 | return 1; |
120 | } | |
121 | ||
5235f626 JA |
122 | int fio_send_data(int sk, const void *p, unsigned int len) |
123 | { | |
124 | struct iovec iov = { .iov_base = (void *) p, .iov_len = len }; | |
125 | ||
126 | assert(len <= sizeof(struct fio_net_cmd) + FIO_SERVER_MAX_FRAGMENT_PDU); | |
127 | ||
128 | return fio_sendv_data(sk, &iov, 1); | |
129 | } | |
130 | ||
132159a5 JA |
131 | int fio_recv_data(int sk, void *p, unsigned int len) |
132 | { | |
133 | do { | |
134 | int ret = recv(sk, p, len, MSG_WAITALL); | |
135 | ||
136 | if (ret > 0) { | |
137 | len -= ret; | |
138 | if (!len) | |
139 | break; | |
140 | p += ret; | |
141 | continue; | |
142 | } else if (!ret) | |
143 | break; | |
144 | else if (errno == EAGAIN || errno == EINTR) | |
145 | continue; | |
7b821684 JA |
146 | else |
147 | break; | |
132159a5 JA |
148 | } while (!exit_backend); |
149 | ||
150 | if (!len) | |
151 | return 0; | |
152 | ||
153 | return -1; | |
154 | } | |
155 | ||
156 | static int verify_convert_cmd(struct fio_net_cmd *cmd) | |
157 | { | |
fcee5ff6 | 158 | uint16_t crc; |
132159a5 | 159 | |
fcee5ff6 JA |
160 | cmd->cmd_crc16 = le16_to_cpu(cmd->cmd_crc16); |
161 | cmd->pdu_crc16 = le16_to_cpu(cmd->pdu_crc16); | |
132159a5 | 162 | |
25dfa848 | 163 | crc = fio_crc16(cmd, FIO_NET_CMD_CRC_SZ); |
fcee5ff6 | 164 | if (crc != cmd->cmd_crc16) { |
132159a5 | 165 | log_err("fio: server bad crc on command (got %x, wanted %x)\n", |
fcee5ff6 | 166 | cmd->cmd_crc16, crc); |
132159a5 JA |
167 | return 1; |
168 | } | |
169 | ||
170 | cmd->version = le16_to_cpu(cmd->version); | |
171 | cmd->opcode = le16_to_cpu(cmd->opcode); | |
172 | cmd->flags = le32_to_cpu(cmd->flags); | |
af9c9fb3 | 173 | cmd->tag = le64_to_cpu(cmd->tag); |
132159a5 JA |
174 | cmd->pdu_len = le32_to_cpu(cmd->pdu_len); |
175 | ||
176 | switch (cmd->version) { | |
fa2ea806 | 177 | case FIO_SERVER_VER: |
132159a5 JA |
178 | break; |
179 | default: | |
180 | log_err("fio: bad server cmd version %d\n", cmd->version); | |
181 | return 1; | |
182 | } | |
183 | ||
b9d2f30a | 184 | if (cmd->pdu_len > FIO_SERVER_MAX_FRAGMENT_PDU) { |
132159a5 JA |
185 | log_err("fio: command payload too large: %u\n", cmd->pdu_len); |
186 | return 1; | |
187 | } | |
188 | ||
189 | return 0; | |
190 | } | |
191 | ||
a64e88da JA |
192 | /* |
193 | * Read (and defragment, if necessary) incoming commands | |
194 | */ | |
e951bdc4 | 195 | struct fio_net_cmd *fio_net_recv_cmd(int sk) |
132159a5 | 196 | { |
a64e88da JA |
197 | struct fio_net_cmd cmd, *cmdret = NULL; |
198 | size_t cmd_size = 0, pdu_offset = 0; | |
fcee5ff6 | 199 | uint16_t crc; |
a64e88da JA |
200 | int ret, first = 1; |
201 | void *pdu = NULL; | |
132159a5 | 202 | |
a64e88da JA |
203 | do { |
204 | ret = fio_recv_data(sk, &cmd, sizeof(cmd)); | |
205 | if (ret) | |
206 | break; | |
132159a5 | 207 | |
a64e88da JA |
208 | /* We have a command, verify it and swap if need be */ |
209 | ret = verify_convert_cmd(&cmd); | |
210 | if (ret) | |
211 | break; | |
132159a5 | 212 | |
0b8f30a5 JA |
213 | if (first) { |
214 | /* if this is text, add room for \0 at the end */ | |
215 | cmd_size = sizeof(cmd) + cmd.pdu_len + 1; | |
216 | assert(!cmdret); | |
217 | } else | |
a64e88da | 218 | cmd_size += cmd.pdu_len; |
132159a5 | 219 | |
a64e88da | 220 | cmdret = realloc(cmdret, cmd_size); |
132159a5 | 221 | |
a64e88da JA |
222 | if (first) |
223 | memcpy(cmdret, &cmd, sizeof(cmd)); | |
67f15dcf JA |
224 | else if (cmdret->opcode != cmd.opcode) { |
225 | log_err("fio: fragment opcode mismatch (%d != %d)\n", | |
226 | cmdret->opcode, cmd.opcode); | |
227 | ret = 1; | |
228 | break; | |
229 | } | |
a64e88da JA |
230 | |
231 | if (!cmd.pdu_len) | |
232 | break; | |
233 | ||
234 | /* There's payload, get it */ | |
235 | pdu = (void *) cmdret->payload + pdu_offset; | |
236 | ret = fio_recv_data(sk, pdu, cmd.pdu_len); | |
237 | if (ret) | |
238 | break; | |
239 | ||
240 | /* Verify payload crc */ | |
25dfa848 | 241 | crc = fio_crc16(pdu, cmd.pdu_len); |
a64e88da JA |
242 | if (crc != cmd.pdu_crc16) { |
243 | log_err("fio: server bad crc on payload "); | |
244 | log_err("(got %x, wanted %x)\n", cmd.pdu_crc16, crc); | |
245 | ret = 1; | |
246 | break; | |
247 | } | |
248 | ||
249 | pdu_offset += cmd.pdu_len; | |
817f06bb JA |
250 | if (!first) |
251 | cmdret->pdu_len += cmd.pdu_len; | |
a64e88da JA |
252 | first = 0; |
253 | } while (cmd.flags & FIO_NET_CMD_F_MORE); | |
132159a5 | 254 | |
a64e88da JA |
255 | if (ret) { |
256 | free(cmdret); | |
257 | cmdret = NULL; | |
0b8f30a5 JA |
258 | } else if (cmdret) { |
259 | /* zero-terminate text input */ | |
084d1c6f JA |
260 | if (cmdret->pdu_len) { |
261 | if (cmdret->opcode == FIO_NET_CMD_TEXT) { | |
262 | struct cmd_text_pdu *pdu = (struct cmd_text_pdu *) cmdret->payload; | |
263 | char *buf = (char *) pdu->buf; | |
0b8f30a5 | 264 | |
084d1c6f JA |
265 | buf[pdu->buf_len ] = '\0'; |
266 | } else if (cmdret->opcode == FIO_NET_CMD_JOB) { | |
46bcd498 JA |
267 | struct cmd_job_pdu *pdu = (struct cmd_job_pdu *) cmdret->payload; |
268 | char *buf = (char *) pdu->buf; | |
269 | int len = le32_to_cpu(pdu->buf_len); | |
084d1c6f | 270 | |
46bcd498 | 271 | buf[len] = '\0'; |
084d1c6f | 272 | } |
0b8f30a5 | 273 | } |
084d1c6f | 274 | |
0b8f30a5 | 275 | /* frag flag is internal */ |
a64e88da | 276 | cmdret->flags &= ~FIO_NET_CMD_F_MORE; |
0b8f30a5 | 277 | } |
a64e88da JA |
278 | |
279 | return cmdret; | |
132159a5 JA |
280 | } |
281 | ||
1b42725f | 282 | void fio_net_cmd_crc_pdu(struct fio_net_cmd *cmd, void *pdu) |
132159a5 JA |
283 | { |
284 | uint32_t pdu_len; | |
285 | ||
25dfa848 | 286 | cmd->cmd_crc16 = __cpu_to_le16(fio_crc16(cmd, FIO_NET_CMD_CRC_SZ)); |
132159a5 JA |
287 | |
288 | pdu_len = le32_to_cpu(cmd->pdu_len); | |
1b42725f JA |
289 | cmd->pdu_crc16 = __cpu_to_le16(fio_crc16(pdu, pdu_len)); |
290 | } | |
291 | ||
292 | void fio_net_cmd_crc(struct fio_net_cmd *cmd) | |
293 | { | |
294 | fio_net_cmd_crc_pdu(cmd, cmd->payload); | |
132159a5 JA |
295 | } |
296 | ||
af9c9fb3 JA |
297 | int fio_net_send_cmd(int fd, uint16_t opcode, const void *buf, off_t size, |
298 | uint64_t tag) | |
794d69ca | 299 | { |
7f868316 JA |
300 | struct fio_net_cmd *cmd = NULL; |
301 | size_t this_len, cur_len = 0; | |
794d69ca JA |
302 | int ret; |
303 | ||
304 | do { | |
305 | this_len = size; | |
b9d2f30a JA |
306 | if (this_len > FIO_SERVER_MAX_FRAGMENT_PDU) |
307 | this_len = FIO_SERVER_MAX_FRAGMENT_PDU; | |
794d69ca | 308 | |
7f868316 JA |
309 | if (!cmd || cur_len < sizeof(*cmd) + this_len) { |
310 | if (cmd) | |
311 | free(cmd); | |
312 | ||
313 | cur_len = sizeof(*cmd) + this_len; | |
314 | cmd = malloc(cur_len); | |
315 | } | |
794d69ca | 316 | |
af9c9fb3 | 317 | fio_init_net_cmd(cmd, opcode, buf, this_len, tag); |
794d69ca JA |
318 | |
319 | if (this_len < size) | |
ddcc0b69 | 320 | cmd->flags = __cpu_to_le32(FIO_NET_CMD_F_MORE); |
794d69ca JA |
321 | |
322 | fio_net_cmd_crc(cmd); | |
323 | ||
324 | ret = fio_send_data(fd, cmd, sizeof(*cmd) + this_len); | |
794d69ca JA |
325 | size -= this_len; |
326 | buf += this_len; | |
327 | } while (!ret && size); | |
328 | ||
7f868316 JA |
329 | if (cmd) |
330 | free(cmd); | |
331 | ||
794d69ca JA |
332 | return ret; |
333 | } | |
334 | ||
89c1707c | 335 | static int fio_net_send_simple_stack_cmd(int sk, uint16_t opcode, uint64_t tag) |
132159a5 | 336 | { |
178cde9f | 337 | struct fio_net_cmd cmd; |
132159a5 | 338 | |
af9c9fb3 | 339 | fio_init_net_cmd(&cmd, opcode, NULL, 0, tag); |
132159a5 JA |
340 | fio_net_cmd_crc(&cmd); |
341 | ||
342 | return fio_send_data(sk, &cmd, sizeof(cmd)); | |
343 | } | |
344 | ||
89c1707c JA |
345 | /* |
346 | * If 'list' is non-NULL, then allocate and store the sent command for | |
347 | * later verification. | |
348 | */ | |
349 | int fio_net_send_simple_cmd(int sk, uint16_t opcode, uint64_t tag, | |
350 | struct flist_head *list) | |
351 | { | |
352 | struct fio_net_int_cmd *cmd; | |
353 | int ret; | |
354 | ||
355 | if (!list) | |
356 | return fio_net_send_simple_stack_cmd(sk, opcode, tag); | |
357 | ||
358 | cmd = malloc(sizeof(*cmd)); | |
359 | ||
df380934 | 360 | fio_init_net_cmd(&cmd->cmd, opcode, NULL, 0, (uintptr_t) cmd); |
89c1707c JA |
361 | fio_net_cmd_crc(&cmd->cmd); |
362 | ||
363 | INIT_FLIST_HEAD(&cmd->list); | |
364 | gettimeofday(&cmd->tv, NULL); | |
365 | cmd->saved_tag = tag; | |
366 | ||
367 | ret = fio_send_data(sk, &cmd->cmd, sizeof(cmd->cmd)); | |
368 | if (ret) { | |
369 | free(cmd); | |
370 | return ret; | |
371 | } | |
372 | ||
373 | flist_add_tail(&cmd->list, list); | |
374 | return 0; | |
375 | } | |
376 | ||
9abea48b | 377 | static int fio_server_send_quit_cmd(void) |
437377e1 | 378 | { |
46c48f1f | 379 | dprint(FD_NET, "server: sending quit\n"); |
89c1707c | 380 | return fio_net_send_simple_cmd(server_fd, FIO_NET_CMD_QUIT, 0, NULL); |
437377e1 JA |
381 | } |
382 | ||
b9d2f30a | 383 | static int handle_run_cmd(struct fio_net_cmd *cmd) |
132159a5 | 384 | { |
11e950bd | 385 | struct cmd_end_pdu epdu; |
a64e88da | 386 | int ret; |
132159a5 | 387 | |
2e1df07d | 388 | ret = fio_backend(); |
11e950bd JA |
389 | |
390 | epdu.error = ret; | |
391 | fio_net_send_cmd(server_fd, FIO_NET_CMD_STOP, &epdu, sizeof(epdu), 0); | |
392 | ||
9abea48b | 393 | fio_server_send_quit_cmd(); |
81179eec | 394 | reset_fio_state(); |
8663ea65 | 395 | first_cmd_check = 0; |
81179eec JA |
396 | return ret; |
397 | } | |
398 | ||
b9d2f30a JA |
399 | static int handle_job_cmd(struct fio_net_cmd *cmd) |
400 | { | |
46bcd498 JA |
401 | struct cmd_job_pdu *pdu = (struct cmd_job_pdu *) cmd->payload; |
402 | void *buf = pdu->buf; | |
b9d2f30a JA |
403 | struct cmd_start_pdu spdu; |
404 | ||
46bcd498 JA |
405 | pdu->buf_len = le32_to_cpu(pdu->buf_len); |
406 | pdu->client_type = le32_to_cpu(pdu->client_type); | |
407 | ||
408 | if (parse_jobs_ini(buf, 1, 0, pdu->client_type)) { | |
b9d2f30a JA |
409 | fio_server_send_quit_cmd(); |
410 | return -1; | |
411 | } | |
412 | ||
413 | spdu.jobs = cpu_to_le32(thread_number); | |
414 | fio_net_send_cmd(server_fd, FIO_NET_CMD_START, &spdu, sizeof(spdu), 0); | |
415 | return 0; | |
416 | } | |
417 | ||
81179eec JA |
418 | static int handle_jobline_cmd(struct fio_net_cmd *cmd) |
419 | { | |
fa2ea806 JA |
420 | void *pdu = cmd->payload; |
421 | struct cmd_single_line_pdu *cslp; | |
422 | struct cmd_line_pdu *clp; | |
423 | unsigned long offset; | |
b9d2f30a | 424 | struct cmd_start_pdu spdu; |
fa2ea806 | 425 | char **argv; |
b9d2f30a | 426 | int i; |
81179eec | 427 | |
fa2ea806 JA |
428 | clp = pdu; |
429 | clp->lines = le16_to_cpu(clp->lines); | |
46bcd498 | 430 | clp->client_type = le16_to_cpu(clp->client_type); |
fa2ea806 JA |
431 | argv = malloc(clp->lines * sizeof(char *)); |
432 | offset = sizeof(*clp); | |
81179eec | 433 | |
fa2ea806 | 434 | dprint(FD_NET, "server: %d command line args\n", clp->lines); |
39e8e016 | 435 | |
fa2ea806 JA |
436 | for (i = 0; i < clp->lines; i++) { |
437 | cslp = pdu + offset; | |
438 | argv[i] = (char *) cslp->text; | |
439 | ||
440 | offset += sizeof(*cslp) + le16_to_cpu(cslp->len); | |
39e8e016 JA |
441 | dprint(FD_NET, "server: %d: %s\n", i, argv[i]); |
442 | } | |
81179eec | 443 | |
46bcd498 | 444 | if (parse_cmd_line(clp->lines, argv, clp->client_type)) { |
e6d1c668 | 445 | fio_server_send_quit_cmd(); |
fa2ea806 | 446 | free(argv); |
81179eec | 447 | return -1; |
e6d1c668 | 448 | } |
81179eec | 449 | |
fa2ea806 JA |
450 | free(argv); |
451 | ||
b9d2f30a JA |
452 | spdu.jobs = cpu_to_le32(thread_number); |
453 | fio_net_send_cmd(server_fd, FIO_NET_CMD_START, &spdu, sizeof(spdu), 0); | |
454 | return 0; | |
132159a5 JA |
455 | } |
456 | ||
c28e8e8c JA |
457 | static int handle_probe_cmd(struct fio_net_cmd *cmd) |
458 | { | |
459 | struct cmd_probe_pdu probe; | |
460 | ||
89c1707c JA |
461 | dprint(FD_NET, "server: sending probe reply\n"); |
462 | ||
c28e8e8c JA |
463 | memset(&probe, 0, sizeof(probe)); |
464 | gethostname((char *) probe.hostname, sizeof(probe.hostname)); | |
6eb24791 JA |
465 | #ifdef FIO_BIG_ENDIAN |
466 | probe.bigendian = 1; | |
467 | #endif | |
81179eec JA |
468 | probe.fio_major = FIO_MAJOR; |
469 | probe.fio_minor = FIO_MINOR; | |
470 | probe.fio_patch = FIO_PATCH; | |
c28e8e8c | 471 | |
cca84643 JA |
472 | probe.os = FIO_OS; |
473 | probe.arch = FIO_ARCH; | |
474 | ||
38fdef22 JA |
475 | probe.bpp = sizeof(void *); |
476 | ||
89c1707c | 477 | return fio_net_send_cmd(server_fd, FIO_NET_CMD_PROBE, &probe, sizeof(probe), cmd->tag); |
af9c9fb3 JA |
478 | } |
479 | ||
480 | static int handle_send_eta_cmd(struct fio_net_cmd *cmd) | |
481 | { | |
482 | struct jobs_eta *je; | |
483 | size_t size; | |
af9c9fb3 JA |
484 | int i; |
485 | ||
b814fb26 JA |
486 | if (!thread_number) |
487 | return 0; | |
488 | ||
489 | size = sizeof(*je) + thread_number * sizeof(char) + 1; | |
7f868316 JA |
490 | je = malloc(size); |
491 | memset(je, 0, size); | |
af9c9fb3 JA |
492 | |
493 | if (!calc_thread_status(je, 1)) { | |
494 | free(je); | |
495 | return 0; | |
496 | } | |
497 | ||
498 | dprint(FD_NET, "server sending status\n"); | |
499 | ||
500 | je->nr_running = cpu_to_le32(je->nr_running); | |
501 | je->nr_ramp = cpu_to_le32(je->nr_ramp); | |
502 | je->nr_pending = cpu_to_le32(je->nr_pending); | |
503 | je->files_open = cpu_to_le32(je->files_open); | |
af9c9fb3 JA |
504 | |
505 | for (i = 0; i < 2; i++) { | |
3e47bd25 JA |
506 | je->m_rate[i] = cpu_to_le32(je->m_rate[i]); |
507 | je->t_rate[i] = cpu_to_le32(je->t_rate[i]); | |
508 | je->m_iops[i] = cpu_to_le32(je->m_iops[i]); | |
509 | je->t_iops[i] = cpu_to_le32(je->t_iops[i]); | |
af9c9fb3 JA |
510 | je->rate[i] = cpu_to_le32(je->rate[i]); |
511 | je->iops[i] = cpu_to_le32(je->iops[i]); | |
512 | } | |
513 | ||
c1970b90 | 514 | je->elapsed_sec = cpu_to_le64(je->elapsed_sec); |
af9c9fb3 | 515 | je->eta_sec = cpu_to_le64(je->eta_sec); |
8c621fb2 | 516 | je->nr_threads = cpu_to_le32(je->nr_threads); |
af9c9fb3 | 517 | |
7f868316 | 518 | fio_net_send_cmd(server_fd, FIO_NET_CMD_ETA, je, size, cmd->tag); |
af9c9fb3 JA |
519 | free(je); |
520 | return 0; | |
c28e8e8c JA |
521 | } |
522 | ||
132159a5 JA |
523 | static int handle_command(struct fio_net_cmd *cmd) |
524 | { | |
525 | int ret; | |
526 | ||
89c1707c JA |
527 | dprint(FD_NET, "server: got op [%s], pdu=%u, tag=%lx\n", |
528 | fio_server_op(cmd->opcode), cmd->pdu_len, cmd->tag); | |
46c48f1f | 529 | |
132159a5 JA |
530 | switch (cmd->opcode) { |
531 | case FIO_NET_CMD_QUIT: | |
cc0df00a | 532 | fio_terminate_threads(TERMINATE_ALL); |
c28e8e8c | 533 | return -1; |
d7959186 | 534 | case FIO_NET_CMD_EXIT: |
132159a5 | 535 | exit_backend = 1; |
c28e8e8c | 536 | return -1; |
132159a5 | 537 | case FIO_NET_CMD_JOB: |
0b8f30a5 | 538 | ret = handle_job_cmd(cmd); |
132159a5 | 539 | break; |
81179eec JA |
540 | case FIO_NET_CMD_JOBLINE: |
541 | ret = handle_jobline_cmd(cmd); | |
542 | break; | |
c28e8e8c JA |
543 | case FIO_NET_CMD_PROBE: |
544 | ret = handle_probe_cmd(cmd); | |
545 | break; | |
af9c9fb3 JA |
546 | case FIO_NET_CMD_SEND_ETA: |
547 | ret = handle_send_eta_cmd(cmd); | |
548 | break; | |
b9d2f30a JA |
549 | case FIO_NET_CMD_RUN: |
550 | ret = handle_run_cmd(cmd); | |
551 | break; | |
132159a5 | 552 | default: |
89c1707c | 553 | log_err("fio: unknown opcode: %s\n",fio_server_op(cmd->opcode)); |
132159a5 JA |
554 | ret = 1; |
555 | } | |
556 | ||
557 | return ret; | |
558 | } | |
559 | ||
70e0c316 | 560 | static int handle_connection(int sk, int block) |
132159a5 JA |
561 | { |
562 | struct fio_net_cmd *cmd = NULL; | |
563 | int ret = 0; | |
564 | ||
565 | /* read forever */ | |
566 | while (!exit_backend) { | |
e951bdc4 JA |
567 | struct pollfd pfd = { |
568 | .fd = sk, | |
569 | .events = POLLIN, | |
570 | }; | |
571 | ||
572 | ret = 0; | |
573 | do { | |
574 | ret = poll(&pfd, 1, 100); | |
575 | if (ret < 0) { | |
576 | if (errno == EINTR) | |
577 | break; | |
578 | log_err("fio: poll: %s\n", strerror(errno)); | |
579 | break; | |
19c65179 JA |
580 | } else if (!ret) { |
581 | if (!block) | |
582 | return 0; | |
e951bdc4 | 583 | continue; |
19c65179 | 584 | } |
e951bdc4 JA |
585 | |
586 | if (pfd.revents & POLLIN) | |
587 | break; | |
588 | if (pfd.revents & (POLLERR|POLLHUP)) { | |
589 | ret = 1; | |
590 | break; | |
591 | } | |
19c65179 | 592 | } while (!exit_backend); |
e951bdc4 JA |
593 | |
594 | if (ret < 0) | |
595 | break; | |
596 | ||
597 | cmd = fio_net_recv_cmd(sk); | |
132159a5 | 598 | if (!cmd) { |
c28e8e8c | 599 | ret = -1; |
132159a5 JA |
600 | break; |
601 | } | |
602 | ||
132159a5 JA |
603 | ret = handle_command(cmd); |
604 | if (ret) | |
605 | break; | |
606 | ||
607 | free(cmd); | |
c77a99e7 | 608 | cmd = NULL; |
132159a5 JA |
609 | } |
610 | ||
611 | if (cmd) | |
612 | free(cmd); | |
613 | ||
614 | return ret; | |
615 | } | |
616 | ||
cc0df00a JA |
617 | void fio_server_idle_loop(void) |
618 | { | |
3ec62ec4 | 619 | if (!first_cmd_check) { |
5d7793aa | 620 | fio_net_send_simple_cmd(server_fd, FIO_NET_CMD_SERVER_START, 0, NULL); |
3ec62ec4 JA |
621 | first_cmd_check = 1; |
622 | } | |
cc0df00a | 623 | if (server_fd != -1) |
70e0c316 | 624 | handle_connection(server_fd, 0); |
cc0df00a JA |
625 | } |
626 | ||
50d16976 JA |
627 | static int accept_loop(int listen_sk) |
628 | { | |
bb447a27 | 629 | struct sockaddr_in addr; |
5ba13ea6 | 630 | fio_socklen_t len = sizeof(addr); |
009b1be4 | 631 | struct pollfd pfd; |
132159a5 | 632 | int ret, sk, flags, exitval = 0; |
50d16976 | 633 | |
60efd14e JA |
634 | dprint(FD_NET, "server enter accept loop\n"); |
635 | ||
009b1be4 JA |
636 | flags = fcntl(listen_sk, F_GETFL); |
637 | flags |= O_NONBLOCK; | |
638 | fcntl(listen_sk, F_SETFL, flags); | |
50d16976 | 639 | again: |
009b1be4 JA |
640 | pfd.fd = listen_sk; |
641 | pfd.events = POLLIN; | |
642 | do { | |
643 | ret = poll(&pfd, 1, 100); | |
644 | if (ret < 0) { | |
645 | if (errno == EINTR) | |
646 | break; | |
fcee5ff6 | 647 | log_err("fio: poll: %s\n", strerror(errno)); |
009b1be4 JA |
648 | goto out; |
649 | } else if (!ret) | |
650 | continue; | |
651 | ||
652 | if (pfd.revents & POLLIN) | |
653 | break; | |
654 | } while (!exit_backend); | |
655 | ||
656 | if (exit_backend) | |
657 | goto out; | |
658 | ||
6b976bfc | 659 | sk = accept(listen_sk, (struct sockaddr *) &addr, &len); |
50d16976 | 660 | if (sk < 0) { |
690e09ae | 661 | log_err("fio: accept: %s\n", strerror(errno)); |
50d16976 JA |
662 | return -1; |
663 | } | |
664 | ||
bb447a27 | 665 | dprint(FD_NET, "server: connect from %s\n", inet_ntoa(addr.sin_addr)); |
46c48f1f | 666 | |
37db14fe JA |
667 | server_fd = sk; |
668 | ||
70e0c316 | 669 | exitval = handle_connection(sk, 1); |
50d16976 | 670 | |
37db14fe | 671 | server_fd = -1; |
50d16976 | 672 | close(sk); |
5c341e9a | 673 | |
009b1be4 | 674 | if (!exit_backend) |
5c341e9a JA |
675 | goto again; |
676 | ||
009b1be4 | 677 | out: |
132159a5 | 678 | return exitval; |
50d16976 JA |
679 | } |
680 | ||
084d1c6f | 681 | int fio_server_text_output(int level, const char *buf, size_t len) |
37db14fe | 682 | { |
084d1c6f JA |
683 | struct cmd_text_pdu *pdu; |
684 | unsigned int tlen; | |
685 | struct timeval tv; | |
686 | ||
687 | if (server_fd == -1) | |
688 | return log_local_buf(buf, len); | |
689 | ||
690 | tlen = sizeof(*pdu) + len; | |
691 | pdu = malloc(tlen); | |
692 | ||
693 | pdu->level = __cpu_to_le32(level); | |
694 | pdu->buf_len = __cpu_to_le32(len); | |
695 | ||
696 | gettimeofday(&tv, NULL); | |
697 | pdu->log_sec = __cpu_to_le64(tv.tv_sec); | |
698 | pdu->log_usec = __cpu_to_le64(tv.tv_usec); | |
337d75a8 | 699 | |
084d1c6f JA |
700 | memcpy(pdu->buf, buf, len); |
701 | ||
702 | fio_net_send_cmd(server_fd, FIO_NET_CMD_TEXT, pdu, tlen, 0); | |
703 | free(pdu); | |
704 | return len; | |
142575e6 JA |
705 | } |
706 | ||
a64e88da JA |
707 | static void convert_io_stat(struct io_stat *dst, struct io_stat *src) |
708 | { | |
709 | dst->max_val = cpu_to_le64(src->max_val); | |
710 | dst->min_val = cpu_to_le64(src->min_val); | |
711 | dst->samples = cpu_to_le64(src->samples); | |
802ad4a8 JA |
712 | |
713 | /* | |
714 | * Encode to IEEE 754 for network transfer | |
715 | */ | |
716 | dst->mean.u.i = __cpu_to_le64(fio_double_to_uint64(src->mean.u.f)); | |
717 | dst->S.u.i = __cpu_to_le64(fio_double_to_uint64(src->S.u.f)); | |
a64e88da JA |
718 | } |
719 | ||
720 | static void convert_gs(struct group_run_stats *dst, struct group_run_stats *src) | |
721 | { | |
722 | int i; | |
723 | ||
724 | for (i = 0; i < 2; i++) { | |
725 | dst->max_run[i] = cpu_to_le64(src->max_run[i]); | |
726 | dst->min_run[i] = cpu_to_le64(src->min_run[i]); | |
727 | dst->max_bw[i] = cpu_to_le64(src->max_bw[i]); | |
728 | dst->min_bw[i] = cpu_to_le64(src->min_bw[i]); | |
729 | dst->io_kb[i] = cpu_to_le64(src->io_kb[i]); | |
730 | dst->agg[i] = cpu_to_le64(src->agg[i]); | |
731 | } | |
732 | ||
733 | dst->kb_base = cpu_to_le32(src->kb_base); | |
734 | dst->groupid = cpu_to_le32(src->groupid); | |
735 | } | |
736 | ||
737 | /* | |
738 | * Send a CMD_TS, which packs struct thread_stat and group_run_stats | |
739 | * into a single payload. | |
740 | */ | |
741 | void fio_server_send_ts(struct thread_stat *ts, struct group_run_stats *rs) | |
742 | { | |
743 | struct cmd_ts_pdu p; | |
744 | int i, j; | |
745 | ||
60efd14e JA |
746 | dprint(FD_NET, "server sending end stats\n"); |
747 | ||
317b3c8b JA |
748 | memset(&p, 0, sizeof(p)); |
749 | ||
a64e88da JA |
750 | strcpy(p.ts.name, ts->name); |
751 | strcpy(p.ts.verror, ts->verror); | |
752 | strcpy(p.ts.description, ts->description); | |
753 | ||
ddcc0b69 | 754 | p.ts.error = cpu_to_le32(ts->error); |
a64e88da | 755 | p.ts.groupid = cpu_to_le32(ts->groupid); |
ddcc0b69 | 756 | p.ts.pid = cpu_to_le32(ts->pid); |
a64e88da JA |
757 | p.ts.members = cpu_to_le32(ts->members); |
758 | ||
759 | for (i = 0; i < 2; i++) { | |
760 | convert_io_stat(&p.ts.clat_stat[i], &ts->clat_stat[i]); | |
761 | convert_io_stat(&p.ts.slat_stat[i], &ts->slat_stat[i]); | |
762 | convert_io_stat(&p.ts.lat_stat[i], &ts->lat_stat[i]); | |
763 | convert_io_stat(&p.ts.bw_stat[i], &ts->bw_stat[i]); | |
764 | } | |
765 | ||
766 | p.ts.usr_time = cpu_to_le64(ts->usr_time); | |
767 | p.ts.sys_time = cpu_to_le64(ts->sys_time); | |
768 | p.ts.ctx = cpu_to_le64(ts->ctx); | |
769 | p.ts.minf = cpu_to_le64(ts->minf); | |
770 | p.ts.majf = cpu_to_le64(ts->majf); | |
771 | p.ts.clat_percentiles = cpu_to_le64(ts->clat_percentiles); | |
802ad4a8 JA |
772 | |
773 | for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) { | |
cfc03e46 JA |
774 | fio_fp64_t *src = &ts->percentile_list[i]; |
775 | fio_fp64_t *dst = &p.ts.percentile_list[i]; | |
802ad4a8 | 776 | |
cfc03e46 | 777 | dst->u.i = __cpu_to_le64(fio_double_to_uint64(src->u.f)); |
802ad4a8 | 778 | } |
a64e88da JA |
779 | |
780 | for (i = 0; i < FIO_IO_U_MAP_NR; i++) { | |
781 | p.ts.io_u_map[i] = cpu_to_le32(ts->io_u_map[i]); | |
782 | p.ts.io_u_submit[i] = cpu_to_le32(ts->io_u_submit[i]); | |
783 | p.ts.io_u_complete[i] = cpu_to_le32(ts->io_u_complete[i]); | |
784 | } | |
785 | ||
786 | for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) { | |
787 | p.ts.io_u_lat_u[i] = cpu_to_le32(ts->io_u_lat_u[i]); | |
788 | p.ts.io_u_lat_m[i] = cpu_to_le32(ts->io_u_lat_m[i]); | |
789 | } | |
790 | ||
791 | for (i = 0; i < 2; i++) | |
792 | for (j = 0; j < FIO_IO_U_PLAT_NR; j++) | |
793 | p.ts.io_u_plat[i][j] = cpu_to_le32(ts->io_u_plat[i][j]); | |
794 | ||
795 | for (i = 0; i < 3; i++) { | |
796 | p.ts.total_io_u[i] = cpu_to_le64(ts->total_io_u[i]); | |
93eee04a | 797 | p.ts.short_io_u[i] = cpu_to_le64(ts->short_io_u[i]); |
a64e88da JA |
798 | } |
799 | ||
93eee04a | 800 | p.ts.total_submit = cpu_to_le64(ts->total_submit); |
a64e88da JA |
801 | p.ts.total_complete = cpu_to_le64(ts->total_complete); |
802 | ||
803 | for (i = 0; i < 2; i++) { | |
804 | p.ts.io_bytes[i] = cpu_to_le64(ts->io_bytes[i]); | |
805 | p.ts.runtime[i] = cpu_to_le64(ts->runtime[i]); | |
806 | } | |
807 | ||
808 | p.ts.total_run_time = cpu_to_le64(ts->total_run_time); | |
809 | p.ts.continue_on_error = cpu_to_le16(ts->continue_on_error); | |
810 | p.ts.total_err_count = cpu_to_le64(ts->total_err_count); | |
ddcc0b69 JA |
811 | p.ts.first_error = cpu_to_le32(ts->first_error); |
812 | p.ts.kb_base = cpu_to_le32(ts->kb_base); | |
a64e88da JA |
813 | |
814 | convert_gs(&p.rs, rs); | |
815 | ||
af9c9fb3 | 816 | fio_net_send_cmd(server_fd, FIO_NET_CMD_TS, &p, sizeof(p), 0); |
a64e88da JA |
817 | } |
818 | ||
819 | void fio_server_send_gs(struct group_run_stats *rs) | |
820 | { | |
821 | struct group_run_stats gs; | |
822 | ||
60efd14e JA |
823 | dprint(FD_NET, "server sending group run stats\n"); |
824 | ||
a64e88da | 825 | convert_gs(&gs, rs); |
af9c9fb3 | 826 | fio_net_send_cmd(server_fd, FIO_NET_CMD_GS, &gs, sizeof(gs), 0); |
cf451d1e JA |
827 | } |
828 | ||
d09a64a0 JA |
829 | static void convert_agg(struct disk_util_agg *dst, struct disk_util_agg *src) |
830 | { | |
831 | int i; | |
832 | ||
833 | for (i = 0; i < 2; i++) { | |
834 | dst->ios[i] = cpu_to_le32(src->ios[i]); | |
835 | dst->merges[i] = cpu_to_le32(src->merges[i]); | |
836 | dst->sectors[i] = cpu_to_le64(src->sectors[i]); | |
837 | dst->ticks[i] = cpu_to_le32(src->ticks[i]); | |
838 | } | |
839 | ||
840 | dst->io_ticks = cpu_to_le32(src->io_ticks); | |
841 | dst->time_in_queue = cpu_to_le32(src->time_in_queue); | |
842 | dst->slavecount = cpu_to_le32(src->slavecount); | |
843 | dst->max_util.u.i = __cpu_to_le64(fio_double_to_uint64(src->max_util.u.f)); | |
844 | } | |
845 | ||
846 | static void convert_dus(struct disk_util_stat *dst, struct disk_util_stat *src) | |
847 | { | |
848 | int i; | |
849 | ||
850 | strcpy((char *) dst->name, (char *) src->name); | |
851 | ||
852 | for (i = 0; i < 2; i++) { | |
853 | dst->ios[i] = cpu_to_le32(src->ios[i]); | |
854 | dst->merges[i] = cpu_to_le32(src->merges[i]); | |
855 | dst->sectors[i] = cpu_to_le64(src->sectors[i]); | |
856 | dst->ticks[i] = cpu_to_le32(src->ticks[i]); | |
857 | } | |
858 | ||
859 | dst->io_ticks = cpu_to_le32(src->io_ticks); | |
860 | dst->time_in_queue = cpu_to_le32(src->time_in_queue); | |
861 | dst->msec = cpu_to_le64(src->msec); | |
862 | } | |
863 | ||
864 | void fio_server_send_du(void) | |
865 | { | |
866 | struct disk_util *du; | |
867 | struct flist_head *entry; | |
868 | struct cmd_du_pdu pdu; | |
869 | ||
870 | dprint(FD_NET, "server: sending disk_util %d\n", !flist_empty(&disk_list)); | |
871 | ||
0766d92e JA |
872 | memset(&pdu, 0, sizeof(pdu)); |
873 | ||
d09a64a0 JA |
874 | flist_for_each(entry, &disk_list) { |
875 | du = flist_entry(entry, struct disk_util, list); | |
876 | ||
877 | convert_dus(&pdu.dus, &du->dus); | |
878 | convert_agg(&pdu.agg, &du->agg); | |
879 | ||
880 | fio_net_send_cmd(server_fd, FIO_NET_CMD_DU, &pdu, sizeof(pdu), 0); | |
881 | } | |
882 | } | |
883 | ||
1b42725f JA |
884 | int fio_send_iolog(struct thread_data *td, struct io_log *log, const char *name) |
885 | { | |
f5ed765a | 886 | struct cmd_iolog_pdu pdu; |
1b42725f JA |
887 | struct fio_net_cmd cmd; |
888 | z_stream stream; | |
889 | void *out_pdu; | |
1b42725f JA |
890 | int i; |
891 | ||
f5ed765a JA |
892 | pdu.nr_samples = __cpu_to_le32(log->nr_samples); |
893 | pdu.log_type = cpu_to_le32(log->log_type); | |
894 | strcpy((char *) pdu.name, name); | |
1b42725f JA |
895 | |
896 | for (i = 0; i < log->nr_samples; i++) { | |
f5ed765a | 897 | struct io_sample *s = &log->log[i]; |
1b42725f | 898 | |
f5ed765a JA |
899 | s->time = cpu_to_le64(s->time); |
900 | s->val = cpu_to_le64(s->val); | |
901 | s->ddir = cpu_to_le32(s->ddir); | |
902 | s->bs = cpu_to_le32(s->bs); | |
1b42725f JA |
903 | } |
904 | ||
905 | /* | |
906 | * Dirty - since the log is potentially huge, compress it into | |
907 | * FIO_SERVER_MAX_FRAGMENT_PDU chunks and let the receiving | |
908 | * side defragment it. | |
909 | */ | |
910 | out_pdu = malloc(FIO_SERVER_MAX_FRAGMENT_PDU); | |
911 | ||
912 | stream.zalloc = Z_NULL; | |
913 | stream.zfree = Z_NULL; | |
914 | stream.opaque = Z_NULL; | |
915 | ||
916 | if (deflateInit(&stream, Z_DEFAULT_COMPRESSION) != Z_OK) { | |
917 | free(out_pdu); | |
1b42725f JA |
918 | return 1; |
919 | } | |
920 | ||
921 | /* | |
f5ed765a | 922 | * Send header first, it's not compressed. |
1b42725f | 923 | */ |
f5ed765a | 924 | __fio_init_net_cmd(&cmd, FIO_NET_CMD_IOLOG, sizeof(pdu), 0); |
1b42725f | 925 | cmd.flags = __cpu_to_le32(FIO_NET_CMD_F_MORE); |
f5ed765a | 926 | fio_net_cmd_crc_pdu(&cmd, &pdu); |
1b42725f | 927 | fio_send_data(server_fd, &cmd, sizeof(cmd)); |
f5ed765a | 928 | fio_send_data(server_fd, &pdu, sizeof(pdu)); |
1b42725f | 929 | |
f5ed765a JA |
930 | stream.next_in = (void *) log->log; |
931 | stream.avail_in = log->nr_samples * sizeof(struct io_sample); | |
1b42725f JA |
932 | |
933 | do { | |
934 | unsigned int this_len; | |
935 | ||
936 | stream.avail_out = FIO_SERVER_MAX_FRAGMENT_PDU; | |
937 | stream.next_out = out_pdu; | |
f5ed765a | 938 | assert(deflate(&stream, Z_FINISH) == Z_OK); |
1b42725f JA |
939 | |
940 | this_len = FIO_SERVER_MAX_FRAGMENT_PDU - stream.avail_out; | |
941 | ||
942 | __fio_init_net_cmd(&cmd, FIO_NET_CMD_IOLOG, this_len, 0); | |
943 | ||
944 | if (stream.avail_in) | |
945 | cmd.flags = __cpu_to_le32(FIO_NET_CMD_F_MORE); | |
946 | ||
947 | fio_net_cmd_crc_pdu(&cmd, out_pdu); | |
948 | ||
949 | fio_send_data(server_fd, &cmd, sizeof(cmd)); | |
950 | fio_send_data(server_fd, out_pdu, this_len); | |
951 | } while (stream.avail_in); | |
952 | ||
1b42725f JA |
953 | free(out_pdu); |
954 | deflateEnd(&stream); | |
955 | return 0; | |
956 | } | |
957 | ||
807f9971 JA |
958 | void fio_server_send_add_job(struct thread_options *o, const char *ioengine) |
959 | { | |
960 | struct cmd_add_job_pdu pdu; | |
807f9971 | 961 | |
731e30a2 | 962 | memset(&pdu, 0, sizeof(pdu)); |
dcaeb606 | 963 | convert_thread_options_to_net(&pdu.top, o); |
807f9971 JA |
964 | |
965 | fio_net_send_cmd(server_fd, FIO_NET_CMD_ADD_JOB, &pdu, sizeof(pdu), 0); | |
966 | } | |
967 | ||
87aa8f19 | 968 | static int fio_init_server_ip(void) |
81179eec | 969 | { |
811826be JA |
970 | struct sockaddr *addr; |
971 | fio_socklen_t socklen; | |
87aa8f19 | 972 | int sk, opt; |
81179eec | 973 | |
811826be JA |
974 | if (use_ipv6) |
975 | sk = socket(AF_INET6, SOCK_STREAM, 0); | |
976 | else | |
977 | sk = socket(AF_INET, SOCK_STREAM, 0); | |
978 | ||
81179eec JA |
979 | if (sk < 0) { |
980 | log_err("fio: socket: %s\n", strerror(errno)); | |
981 | return -1; | |
982 | } | |
983 | ||
984 | opt = 1; | |
985 | if (setsockopt(sk, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt)) < 0) { | |
986 | log_err("fio: setsockopt: %s\n", strerror(errno)); | |
b94cba47 | 987 | close(sk); |
81179eec JA |
988 | return -1; |
989 | } | |
990 | #ifdef SO_REUSEPORT | |
6eb24791 | 991 | if (setsockopt(sk, SOL_SOCKET, SO_REUSEPORT, &opt, sizeof(opt)) < 0) { |
81179eec | 992 | log_err("fio: setsockopt: %s\n", strerror(errno)); |
b94cba47 | 993 | close(sk); |
81179eec JA |
994 | return -1; |
995 | } | |
996 | #endif | |
997 | ||
811826be JA |
998 | if (use_ipv6) { |
999 | addr = (struct sockaddr *) &saddr_in6; | |
1000 | socklen = sizeof(saddr_in6); | |
1001 | saddr_in6.sin6_family = AF_INET6; | |
1002 | } else { | |
1003 | addr = (struct sockaddr *) &saddr_in; | |
1004 | socklen = sizeof(saddr_in); | |
1005 | saddr_in.sin_family = AF_INET; | |
1006 | } | |
81179eec | 1007 | |
811826be | 1008 | if (bind(sk, addr, socklen) < 0) { |
81179eec | 1009 | log_err("fio: bind: %s\n", strerror(errno)); |
b94cba47 | 1010 | close(sk); |
81179eec JA |
1011 | return -1; |
1012 | } | |
1013 | ||
87aa8f19 JA |
1014 | return sk; |
1015 | } | |
1016 | ||
1017 | static int fio_init_server_sock(void) | |
1018 | { | |
1019 | struct sockaddr_un addr; | |
1020 | fio_socklen_t len; | |
1021 | mode_t mode; | |
1022 | int sk; | |
1023 | ||
1024 | sk = socket(AF_UNIX, SOCK_STREAM, 0); | |
1025 | if (sk < 0) { | |
1026 | log_err("fio: socket: %s\n", strerror(errno)); | |
1027 | return -1; | |
1028 | } | |
1029 | ||
1030 | mode = umask(000); | |
1031 | ||
1032 | memset(&addr, 0, sizeof(addr)); | |
1033 | addr.sun_family = AF_UNIX; | |
1034 | strcpy(addr.sun_path, bind_sock); | |
1035 | unlink(bind_sock); | |
1036 | ||
1037 | len = sizeof(addr.sun_family) + strlen(bind_sock) + 1; | |
1038 | ||
1039 | if (bind(sk, (struct sockaddr *) &addr, len) < 0) { | |
1040 | log_err("fio: bind: %s\n", strerror(errno)); | |
b94cba47 | 1041 | close(sk); |
87aa8f19 JA |
1042 | return -1; |
1043 | } | |
1044 | ||
1045 | umask(mode); | |
1046 | return sk; | |
1047 | } | |
1048 | ||
1049 | static int fio_init_server_connection(void) | |
1050 | { | |
bebe6398 | 1051 | char bind_str[128]; |
87aa8f19 JA |
1052 | int sk; |
1053 | ||
1054 | dprint(FD_NET, "starting server\n"); | |
1055 | ||
1056 | if (!bind_sock) | |
1057 | sk = fio_init_server_ip(); | |
1058 | else | |
1059 | sk = fio_init_server_sock(); | |
1060 | ||
1061 | if (sk < 0) | |
1062 | return sk; | |
1063 | ||
811826be JA |
1064 | if (!bind_sock) { |
1065 | char *p, port[16]; | |
1066 | const void *src; | |
1067 | int af; | |
1068 | ||
1069 | if (use_ipv6) { | |
1070 | af = AF_INET6; | |
1071 | src = &saddr_in6.sin6_addr; | |
1072 | } else { | |
1073 | af = AF_INET; | |
1074 | src = &saddr_in.sin_addr; | |
1075 | } | |
1076 | ||
1077 | p = (char *) inet_ntop(af, src, bind_str, sizeof(bind_str)); | |
1078 | ||
1079 | sprintf(port, ",%u", fio_net_port); | |
1080 | if (p) | |
1081 | strcat(p, port); | |
1082 | else | |
1083 | strcpy(bind_str, port); | |
1084 | } else | |
bebe6398 JA |
1085 | strcpy(bind_str, bind_sock); |
1086 | ||
1087 | log_info("fio: server listening on %s\n", bind_str); | |
1088 | ||
89c1707c | 1089 | if (listen(sk, 0) < 0) { |
81179eec JA |
1090 | log_err("fio: listen: %s\n", strerror(errno)); |
1091 | return -1; | |
1092 | } | |
1093 | ||
87aa8f19 JA |
1094 | return sk; |
1095 | } | |
1096 | ||
3ec62ec4 JA |
1097 | int fio_server_parse_host(const char *host, int *ipv6, struct in_addr *inp, |
1098 | struct in6_addr *inp6) | |
1099 | ||
1100 | { | |
1101 | int ret = 0; | |
1102 | ||
1103 | if (*ipv6) | |
1104 | ret = inet_pton(AF_INET6, host, inp6); | |
1105 | else | |
1106 | ret = inet_pton(AF_INET, host, inp); | |
1107 | ||
1108 | if (ret != 1) { | |
1109 | struct hostent *hent; | |
1110 | ||
1111 | hent = gethostbyname(host); | |
1112 | if (!hent) { | |
1113 | log_err("fio: failed to resolve <%s>\n", host); | |
1114 | return 0; | |
1115 | } | |
1116 | ||
1117 | if (*ipv6) { | |
1118 | if (hent->h_addrtype != AF_INET6) { | |
1119 | log_info("fio: falling back to IPv4\n"); | |
1120 | *ipv6 = 0; | |
1121 | } else | |
1122 | memcpy(inp6, hent->h_addr_list[0], 16); | |
1123 | } | |
1124 | if (!*ipv6) { | |
1125 | if (hent->h_addrtype != AF_INET) { | |
1126 | log_err("fio: lookup type mismatch\n"); | |
1127 | return 0; | |
1128 | } | |
1129 | memcpy(inp, hent->h_addr_list[0], 4); | |
1130 | } | |
1131 | ret = 1; | |
1132 | } | |
1133 | ||
1134 | return !(ret == 1); | |
1135 | } | |
1136 | ||
660a2bfb JA |
1137 | /* |
1138 | * Parse a host/ip/port string. Reads from 'str'. | |
1139 | * | |
1140 | * Outputs: | |
1141 | * | |
1142 | * For IPv4: | |
1143 | * *ptr is the host, *port is the port, inp is the destination. | |
1144 | * For IPv6: | |
1145 | * *ptr is the host, *port is the port, inp6 is the dest, and *ipv6 is 1. | |
1146 | * For local domain sockets: | |
1147 | * *ptr is the filename, *is_sock is 1. | |
1148 | */ | |
bebe6398 | 1149 | int fio_server_parse_string(const char *str, char **ptr, int *is_sock, |
811826be JA |
1150 | int *port, struct in_addr *inp, |
1151 | struct in6_addr *inp6, int *ipv6) | |
bebe6398 | 1152 | { |
76867621 JA |
1153 | const char *host = str; |
1154 | char *portp; | |
3ec62ec4 | 1155 | int lport = 0; |
76867621 | 1156 | |
bebe6398 JA |
1157 | *ptr = NULL; |
1158 | *is_sock = 0; | |
6d2cf394 | 1159 | *port = fio_net_port; |
811826be | 1160 | *ipv6 = 0; |
bebe6398 JA |
1161 | |
1162 | if (!strncmp(str, "sock:", 5)) { | |
1163 | *ptr = strdup(str + 5); | |
1164 | *is_sock = 1; | |
76867621 JA |
1165 | |
1166 | return 0; | |
1167 | } | |
1168 | ||
1169 | /* | |
1170 | * Is it ip:<ip or host>:port | |
1171 | */ | |
1172 | if (!strncmp(host, "ip:", 3)) | |
1173 | host += 3; | |
1174 | else if (!strncmp(host, "ip4:", 4)) | |
1175 | host += 4; | |
1176 | else if (!strncmp(host, "ip6:", 4)) { | |
1177 | host += 4; | |
1178 | *ipv6 = 1; | |
1179 | } else if (host[0] == ':') { | |
1180 | /* String is :port */ | |
1181 | host++; | |
1182 | lport = atoi(host); | |
1183 | if (!lport || lport > 65535) { | |
1184 | log_err("fio: bad server port %u\n", port); | |
1185 | return 1; | |
1186 | } | |
1187 | /* no hostname given, we are done */ | |
1188 | *port = lport; | |
1189 | return 0; | |
1190 | } | |
1191 | ||
1192 | /* | |
1193 | * If no port seen yet, check if there's a last ':' at the end | |
1194 | */ | |
1195 | if (!lport) { | |
1196 | portp = strchr(host, ','); | |
1197 | if (portp) { | |
1198 | *portp = '\0'; | |
1199 | portp++; | |
1200 | lport = atoi(portp); | |
bebe6398 JA |
1201 | if (!lport || lport > 65535) { |
1202 | log_err("fio: bad server port %u\n", port); | |
1203 | return 1; | |
1204 | } | |
bebe6398 | 1205 | } |
76867621 | 1206 | } |
bebe6398 | 1207 | |
76867621 JA |
1208 | if (lport) |
1209 | *port = lport; | |
bebe6398 | 1210 | |
76867621 JA |
1211 | if (!strlen(host)) |
1212 | return 0; | |
bebe6398 | 1213 | |
76867621 | 1214 | *ptr = strdup(host); |
811826be | 1215 | |
3ec62ec4 JA |
1216 | if (fio_server_parse_host(*ptr, ipv6, inp, inp6)) { |
1217 | free(*ptr); | |
1218 | *ptr = NULL; | |
1219 | return 1; | |
bebe6398 JA |
1220 | } |
1221 | ||
1222 | if (*port == 0) | |
1223 | *port = fio_net_port; | |
1224 | ||
1225 | return 0; | |
1226 | } | |
1227 | ||
87aa8f19 JA |
1228 | /* |
1229 | * Server arg should be one of: | |
1230 | * | |
1231 | * sock:/path/to/socket | |
1232 | * ip:1.2.3.4 | |
1233 | * 1.2.3.4 | |
1234 | * | |
1235 | * Where sock uses unix domain sockets, and ip binds the server to | |
1236 | * a specific interface. If no arguments are given to the server, it | |
1237 | * uses IP and binds to 0.0.0.0. | |
1238 | * | |
1239 | */ | |
1240 | static int fio_handle_server_arg(void) | |
1241 | { | |
6d2cf394 | 1242 | int port = fio_net_port; |
a7de0a11 | 1243 | int is_sock, ret = 0; |
bebe6398 | 1244 | |
87aa8f19 JA |
1245 | saddr_in.sin_addr.s_addr = htonl(INADDR_ANY); |
1246 | ||
1247 | if (!fio_server_arg) | |
a7de0a11 | 1248 | goto out; |
87aa8f19 | 1249 | |
4e5b8fb8 | 1250 | ret = fio_server_parse_string(fio_server_arg, &bind_sock, &is_sock, |
811826be JA |
1251 | &port, &saddr_in.sin_addr, |
1252 | &saddr_in6.sin6_addr, &use_ipv6); | |
4e5b8fb8 JA |
1253 | |
1254 | if (!is_sock && bind_sock) { | |
1255 | free(bind_sock); | |
1256 | bind_sock = NULL; | |
1257 | } | |
1258 | ||
a7de0a11 | 1259 | out: |
6d2cf394 JA |
1260 | fio_net_port = port; |
1261 | saddr_in.sin_port = htons(port); | |
811826be | 1262 | saddr_in6.sin6_port = htons(port); |
4e5b8fb8 | 1263 | return ret; |
87aa8f19 JA |
1264 | } |
1265 | ||
1266 | static int fio_server(void) | |
1267 | { | |
1268 | int sk, ret; | |
1269 | ||
1270 | dprint(FD_NET, "starting server\n"); | |
1271 | ||
1272 | if (fio_handle_server_arg()) | |
1273 | return -1; | |
1274 | ||
1275 | sk = fio_init_server_connection(); | |
1276 | if (sk < 0) | |
1277 | return -1; | |
81179eec JA |
1278 | |
1279 | ret = accept_loop(sk); | |
87aa8f19 | 1280 | |
81179eec | 1281 | close(sk); |
87aa8f19 JA |
1282 | |
1283 | if (fio_server_arg) { | |
1284 | free(fio_server_arg); | |
1285 | fio_server_arg = NULL; | |
1286 | } | |
bebe6398 JA |
1287 | if (bind_sock) |
1288 | free(bind_sock); | |
87aa8f19 | 1289 | |
81179eec JA |
1290 | return ret; |
1291 | } | |
1292 | ||
7b821684 | 1293 | void fio_server_got_signal(int signal) |
9abea48b | 1294 | { |
7b821684 JA |
1295 | if (signal == SIGPIPE) |
1296 | server_fd = -1; | |
1297 | else { | |
1298 | log_info("\nfio: terminating on signal %d\n", signal); | |
1299 | exit_backend = 1; | |
1300 | } | |
9abea48b JA |
1301 | } |
1302 | ||
13755d94 JA |
1303 | static int check_existing_pidfile(const char *pidfile) |
1304 | { | |
1305 | struct stat sb; | |
1306 | char buf[16]; | |
1307 | pid_t pid; | |
1308 | FILE *f; | |
1309 | ||
1310 | if (stat(pidfile, &sb)) | |
1311 | return 0; | |
1312 | ||
1313 | f = fopen(pidfile, "r"); | |
1314 | if (!f) | |
1315 | return 0; | |
1316 | ||
bfc3b179 | 1317 | if (fread(buf, sb.st_size, 1, f) <= 0) { |
13755d94 JA |
1318 | fclose(f); |
1319 | return 1; | |
1320 | } | |
1321 | fclose(f); | |
1322 | ||
1323 | pid = atoi(buf); | |
1324 | if (kill(pid, SIGCONT) < 0) | |
ea5aa1be | 1325 | return errno != ESRCH; |
13755d94 JA |
1326 | |
1327 | return 1; | |
1328 | } | |
1329 | ||
1330 | static int write_pid(pid_t pid, const char *pidfile) | |
402668f3 JA |
1331 | { |
1332 | FILE *fpid; | |
1333 | ||
1334 | fpid = fopen(pidfile, "w"); | |
1335 | if (!fpid) { | |
1336 | log_err("fio: failed opening pid file %s\n", pidfile); | |
13755d94 | 1337 | return 1; |
402668f3 JA |
1338 | } |
1339 | ||
1340 | fprintf(fpid, "%u\n", (unsigned int) pid); | |
13755d94 JA |
1341 | fclose(fpid); |
1342 | return 0; | |
402668f3 JA |
1343 | } |
1344 | ||
1345 | /* | |
1346 | * If pidfile is specified, background us. | |
1347 | */ | |
1348 | int fio_start_server(char *pidfile) | |
e46d8091 JA |
1349 | { |
1350 | pid_t pid; | |
402668f3 | 1351 | int ret; |
e46d8091 | 1352 | |
93bcfd20 | 1353 | #if defined(WIN32) |
905c78b9 JA |
1354 | WSADATA wsd; |
1355 | WSAStartup(MAKEWORD(2,2), &wsd); | |
93bcfd20 BC |
1356 | #endif |
1357 | ||
402668f3 | 1358 | if (!pidfile) |
e46d8091 JA |
1359 | return fio_server(); |
1360 | ||
13755d94 JA |
1361 | if (check_existing_pidfile(pidfile)) { |
1362 | log_err("fio: pidfile %s exists and server appears alive\n", | |
1363 | pidfile); | |
1364 | return -1; | |
1365 | } | |
1366 | ||
e46d8091 JA |
1367 | pid = fork(); |
1368 | if (pid < 0) { | |
13755d94 | 1369 | log_err("fio: failed server fork: %s", strerror(errno)); |
402668f3 | 1370 | free(pidfile); |
c28e8e8c | 1371 | return -1; |
402668f3 | 1372 | } else if (pid) { |
13755d94 JA |
1373 | int ret = write_pid(pid, pidfile); |
1374 | ||
1375 | exit(ret); | |
402668f3 | 1376 | } |
e46d8091 JA |
1377 | |
1378 | setsid(); | |
13755d94 JA |
1379 | openlog("fio", LOG_NDELAY|LOG_NOWAIT|LOG_PID, LOG_USER); |
1380 | log_syslog = 1; | |
e46d8091 JA |
1381 | close(STDIN_FILENO); |
1382 | close(STDOUT_FILENO); | |
1383 | close(STDERR_FILENO); | |
1384 | f_out = NULL; | |
1385 | f_err = NULL; | |
402668f3 JA |
1386 | |
1387 | ret = fio_server(); | |
1388 | ||
1389 | closelog(); | |
1390 | unlink(pidfile); | |
1391 | free(pidfile); | |
1392 | return ret; | |
e46d8091 | 1393 | } |
87aa8f19 | 1394 | |
bebe6398 | 1395 | void fio_server_set_arg(const char *arg) |
87aa8f19 JA |
1396 | { |
1397 | fio_server_arg = strdup(arg); | |
1398 | } |