| 1 | /* |
| 2 | * This file contains the ini and command liner parser main. |
| 3 | */ |
| 4 | #include <stdio.h> |
| 5 | #include <stdlib.h> |
| 6 | #include <unistd.h> |
| 7 | #include <ctype.h> |
| 8 | #include <string.h> |
| 9 | #include <errno.h> |
| 10 | #include <limits.h> |
| 11 | #include <stdlib.h> |
| 12 | #include <math.h> |
| 13 | #include <float.h> |
| 14 | |
| 15 | #include "parse.h" |
| 16 | #include "debug.h" |
| 17 | #include "options.h" |
| 18 | #include "minmax.h" |
| 19 | #include "lib/ieee754.h" |
| 20 | #include "lib/pow2.h" |
| 21 | |
| 22 | #ifdef CONFIG_ARITHMETIC |
| 23 | #include "y.tab.h" |
| 24 | #endif |
| 25 | |
| 26 | static struct fio_option *__fio_options; |
| 27 | |
| 28 | static int vp_cmp(const void *p1, const void *p2) |
| 29 | { |
| 30 | const struct value_pair *vp1 = p1; |
| 31 | const struct value_pair *vp2 = p2; |
| 32 | |
| 33 | return strlen(vp2->ival) - strlen(vp1->ival); |
| 34 | } |
| 35 | |
| 36 | static void posval_sort(struct fio_option *o, struct value_pair *vpmap) |
| 37 | { |
| 38 | const struct value_pair *vp; |
| 39 | int entries; |
| 40 | |
| 41 | memset(vpmap, 0, PARSE_MAX_VP * sizeof(struct value_pair)); |
| 42 | |
| 43 | for (entries = 0; entries < PARSE_MAX_VP; entries++) { |
| 44 | vp = &o->posval[entries]; |
| 45 | if (!vp->ival || vp->ival[0] == '\0') |
| 46 | break; |
| 47 | |
| 48 | memcpy(&vpmap[entries], vp, sizeof(*vp)); |
| 49 | } |
| 50 | |
| 51 | qsort(vpmap, entries, sizeof(struct value_pair), vp_cmp); |
| 52 | } |
| 53 | |
| 54 | static void show_option_range(struct fio_option *o, |
| 55 | int (*logger)(const char *format, ...)) |
| 56 | { |
| 57 | if (o->type == FIO_OPT_FLOAT_LIST) { |
| 58 | if (o->minfp == DBL_MIN && o->maxfp == DBL_MAX) |
| 59 | return; |
| 60 | |
| 61 | logger("%20s: min=%f", "range", o->minfp); |
| 62 | if (o->maxfp != DBL_MAX) |
| 63 | logger(", max=%f", o->maxfp); |
| 64 | logger("\n"); |
| 65 | } else if (!o->posval[0].ival) { |
| 66 | if (!o->minval && !o->maxval) |
| 67 | return; |
| 68 | |
| 69 | logger("%20s: min=%d", "range", o->minval); |
| 70 | if (o->maxval) |
| 71 | logger(", max=%d", o->maxval); |
| 72 | logger("\n"); |
| 73 | } |
| 74 | } |
| 75 | |
| 76 | static void show_option_values(struct fio_option *o) |
| 77 | { |
| 78 | int i; |
| 79 | |
| 80 | for (i = 0; i < PARSE_MAX_VP; i++) { |
| 81 | const struct value_pair *vp = &o->posval[i]; |
| 82 | |
| 83 | if (!vp->ival) |
| 84 | continue; |
| 85 | |
| 86 | log_info("%20s: %-10s", i == 0 ? "valid values" : "", vp->ival); |
| 87 | if (vp->help) |
| 88 | log_info(" %s", vp->help); |
| 89 | log_info("\n"); |
| 90 | } |
| 91 | |
| 92 | if (i) |
| 93 | log_info("\n"); |
| 94 | } |
| 95 | |
| 96 | static void show_option_help(struct fio_option *o, int is_err) |
| 97 | { |
| 98 | const char *typehelp[] = { |
| 99 | "invalid", |
| 100 | "string (opt=bla)", |
| 101 | "string (opt=bla)", |
| 102 | "string with possible k/m/g postfix (opt=4k)", |
| 103 | "string with time postfix (opt=10s)", |
| 104 | "string (opt=bla)", |
| 105 | "string with dual range (opt=1k-4k,4k-8k)", |
| 106 | "integer value (opt=100)", |
| 107 | "boolean value (opt=1)", |
| 108 | "list of floating point values separated by ':' (opt=5.9:7.8)", |
| 109 | "no argument (opt)", |
| 110 | "deprecated", |
| 111 | }; |
| 112 | int (*logger)(const char *format, ...); |
| 113 | |
| 114 | if (is_err) |
| 115 | logger = log_err; |
| 116 | else |
| 117 | logger = log_info; |
| 118 | |
| 119 | if (o->alias) |
| 120 | logger("%20s: %s\n", "alias", o->alias); |
| 121 | |
| 122 | logger("%20s: %s\n", "type", typehelp[o->type]); |
| 123 | logger("%20s: %s\n", "default", o->def ? o->def : "no default"); |
| 124 | if (o->prof_name) |
| 125 | logger("%20s: only for profile '%s'\n", "valid", o->prof_name); |
| 126 | show_option_range(o, logger); |
| 127 | show_option_values(o); |
| 128 | } |
| 129 | |
| 130 | static unsigned long long get_mult_time(const char *str, int len, |
| 131 | int is_seconds) |
| 132 | { |
| 133 | const char *p = str; |
| 134 | char *c; |
| 135 | unsigned long long mult = 1; |
| 136 | |
| 137 | /* |
| 138 | * Go forward until we hit a non-digit, or +/- sign |
| 139 | */ |
| 140 | while ((p - str) <= len) { |
| 141 | if (!isdigit((int) *p) && (*p != '+') && (*p != '-')) |
| 142 | break; |
| 143 | p++; |
| 144 | } |
| 145 | |
| 146 | if (!isalpha((int) *p)) { |
| 147 | if (is_seconds) |
| 148 | return 1000000UL; |
| 149 | else |
| 150 | return 1; |
| 151 | } |
| 152 | |
| 153 | c = strdup(p); |
| 154 | for (int i = 0; i < strlen(c); i++) |
| 155 | c[i] = tolower(c[i]); |
| 156 | |
| 157 | if (!strncmp("us", c, 2) || !strncmp("usec", c, 4)) |
| 158 | mult = 1; |
| 159 | else if (!strncmp("ms", c, 2) || !strncmp("msec", c, 4)) |
| 160 | mult = 1000; |
| 161 | else if (!strcmp("s", c)) |
| 162 | mult = 1000000; |
| 163 | else if (!strcmp("m", c)) |
| 164 | mult = 60 * 1000000UL; |
| 165 | else if (!strcmp("h", c)) |
| 166 | mult = 60 * 60 * 1000000UL; |
| 167 | else if (!strcmp("d", c)) |
| 168 | mult = 24 * 60 * 60 * 1000000UL; |
| 169 | |
| 170 | free(c); |
| 171 | return mult; |
| 172 | } |
| 173 | |
| 174 | static int is_separator(char c) |
| 175 | { |
| 176 | switch (c) { |
| 177 | case ':': |
| 178 | case '-': |
| 179 | case ',': |
| 180 | case '/': |
| 181 | return 1; |
| 182 | default: |
| 183 | return 0; |
| 184 | } |
| 185 | } |
| 186 | |
| 187 | static unsigned long long __get_mult_bytes(const char *p, void *data, |
| 188 | int *percent) |
| 189 | { |
| 190 | unsigned int kb_base = fio_get_kb_base(data); |
| 191 | unsigned long long ret = 1; |
| 192 | unsigned int i, pow = 0, mult = kb_base; |
| 193 | char *c; |
| 194 | |
| 195 | if (!p) |
| 196 | return 1; |
| 197 | |
| 198 | c = strdup(p); |
| 199 | |
| 200 | for (i = 0; i < strlen(c); i++) { |
| 201 | c[i] = tolower(c[i]); |
| 202 | if (is_separator(c[i])) { |
| 203 | c[i] = '\0'; |
| 204 | break; |
| 205 | } |
| 206 | } |
| 207 | |
| 208 | if (!strncmp("pib", c, 3)) { |
| 209 | pow = 5; |
| 210 | mult = 1000; |
| 211 | } else if (!strncmp("tib", c, 3)) { |
| 212 | pow = 4; |
| 213 | mult = 1000; |
| 214 | } else if (!strncmp("gib", c, 3)) { |
| 215 | pow = 3; |
| 216 | mult = 1000; |
| 217 | } else if (!strncmp("mib", c, 3)) { |
| 218 | pow = 2; |
| 219 | mult = 1000; |
| 220 | } else if (!strncmp("kib", c, 3)) { |
| 221 | pow = 1; |
| 222 | mult = 1000; |
| 223 | } else if (!strncmp("p", c, 1) || !strncmp("pb", c, 2)) |
| 224 | pow = 5; |
| 225 | else if (!strncmp("t", c, 1) || !strncmp("tb", c, 2)) |
| 226 | pow = 4; |
| 227 | else if (!strncmp("g", c, 1) || !strncmp("gb", c, 2)) |
| 228 | pow = 3; |
| 229 | else if (!strncmp("m", c, 1) || !strncmp("mb", c, 2)) |
| 230 | pow = 2; |
| 231 | else if (!strncmp("k", c, 1) || !strncmp("kb", c, 2)) |
| 232 | pow = 1; |
| 233 | else if (!strncmp("%", c, 1)) { |
| 234 | *percent = 1; |
| 235 | free(c); |
| 236 | return ret; |
| 237 | } |
| 238 | |
| 239 | while (pow--) |
| 240 | ret *= (unsigned long long) mult; |
| 241 | |
| 242 | free(c); |
| 243 | return ret; |
| 244 | } |
| 245 | |
| 246 | static unsigned long long get_mult_bytes(const char *str, int len, void *data, |
| 247 | int *percent) |
| 248 | { |
| 249 | const char *p = str; |
| 250 | int digit_seen = 0; |
| 251 | |
| 252 | if (len < 2) |
| 253 | return __get_mult_bytes(str, data, percent); |
| 254 | |
| 255 | /* |
| 256 | * Go forward until we hit a non-digit, or +/- sign |
| 257 | */ |
| 258 | while ((p - str) <= len) { |
| 259 | if (!isdigit((int) *p) && |
| 260 | (((*p != '+') && (*p != '-')) || digit_seen)) |
| 261 | break; |
| 262 | digit_seen |= isdigit((int) *p); |
| 263 | p++; |
| 264 | } |
| 265 | |
| 266 | if (!isalpha((int) *p) && (*p != '%')) |
| 267 | p = NULL; |
| 268 | |
| 269 | return __get_mult_bytes(p, data, percent); |
| 270 | } |
| 271 | |
| 272 | extern int evaluate_arithmetic_expression(const char *buffer, long long *ival, |
| 273 | double *dval, double implied_units, |
| 274 | int is_time); |
| 275 | |
| 276 | /* |
| 277 | * Convert string into a floating number. Return 1 for success and 0 otherwise. |
| 278 | */ |
| 279 | int str_to_float(const char *str, double *val, int is_time) |
| 280 | { |
| 281 | #ifdef CONFIG_ARITHMETIC |
| 282 | int rc; |
| 283 | long long ival; |
| 284 | double dval; |
| 285 | |
| 286 | if (str[0] == '(') { |
| 287 | rc = evaluate_arithmetic_expression(str, &ival, &dval, 1.0, is_time); |
| 288 | if (!rc) { |
| 289 | *val = dval; |
| 290 | return 1; |
| 291 | } |
| 292 | } |
| 293 | #endif |
| 294 | return 1 == sscanf(str, "%lf", val); |
| 295 | } |
| 296 | |
| 297 | /* |
| 298 | * convert string into decimal value, noting any size suffix |
| 299 | */ |
| 300 | int str_to_decimal(const char *str, long long *val, int kilo, void *data, |
| 301 | int is_seconds, int is_time) |
| 302 | { |
| 303 | int len, base; |
| 304 | int rc = 1; |
| 305 | #ifdef CONFIG_ARITHMETIC |
| 306 | long long ival; |
| 307 | double dval; |
| 308 | double implied_units = 1.0; |
| 309 | #endif |
| 310 | |
| 311 | len = strlen(str); |
| 312 | if (!len) |
| 313 | return 1; |
| 314 | |
| 315 | #ifdef CONFIG_ARITHMETIC |
| 316 | if (is_seconds) |
| 317 | implied_units = 1000000.0; |
| 318 | if (str[0] == '(') |
| 319 | rc = evaluate_arithmetic_expression(str, &ival, &dval, implied_units, is_time); |
| 320 | if (str[0] == '(' && !rc) { |
| 321 | if (!kilo && is_seconds) |
| 322 | *val = ival / 1000000LL; |
| 323 | else |
| 324 | *val = ival; |
| 325 | } |
| 326 | #endif |
| 327 | |
| 328 | if (rc == 1) { |
| 329 | if (strstr(str, "0x") || strstr(str, "0X")) |
| 330 | base = 16; |
| 331 | else |
| 332 | base = 10; |
| 333 | |
| 334 | *val = strtoll(str, NULL, base); |
| 335 | if (*val == LONG_MAX && errno == ERANGE) |
| 336 | return 1; |
| 337 | } |
| 338 | |
| 339 | if (kilo) { |
| 340 | unsigned long long mult; |
| 341 | int perc = 0; |
| 342 | |
| 343 | mult = get_mult_bytes(str, len, data, &perc); |
| 344 | if (perc) |
| 345 | *val = -1ULL - *val; |
| 346 | else |
| 347 | *val *= mult; |
| 348 | } else |
| 349 | *val *= get_mult_time(str, len, is_seconds); |
| 350 | |
| 351 | return 0; |
| 352 | } |
| 353 | |
| 354 | int check_str_bytes(const char *p, long long *val, void *data) |
| 355 | { |
| 356 | return str_to_decimal(p, val, 1, data, 0, 0); |
| 357 | } |
| 358 | |
| 359 | int check_str_time(const char *p, long long *val, int is_seconds) |
| 360 | { |
| 361 | return str_to_decimal(p, val, 0, NULL, is_seconds, 1); |
| 362 | } |
| 363 | |
| 364 | void strip_blank_front(char **p) |
| 365 | { |
| 366 | char *s = *p; |
| 367 | |
| 368 | if (!strlen(s)) |
| 369 | return; |
| 370 | while (isspace((int) *s)) |
| 371 | s++; |
| 372 | |
| 373 | *p = s; |
| 374 | } |
| 375 | |
| 376 | void strip_blank_end(char *p) |
| 377 | { |
| 378 | char *start = p, *s; |
| 379 | |
| 380 | if (!strlen(p)) |
| 381 | return; |
| 382 | |
| 383 | s = strchr(p, ';'); |
| 384 | if (s) |
| 385 | *s = '\0'; |
| 386 | s = strchr(p, '#'); |
| 387 | if (s) |
| 388 | *s = '\0'; |
| 389 | if (s) |
| 390 | p = s; |
| 391 | |
| 392 | s = p + strlen(p); |
| 393 | while ((isspace((int) *s) || iscntrl((int) *s)) && (s > start)) |
| 394 | s--; |
| 395 | |
| 396 | *(s + 1) = '\0'; |
| 397 | } |
| 398 | |
| 399 | static int check_range_bytes(const char *str, long *val, void *data) |
| 400 | { |
| 401 | long long __val; |
| 402 | |
| 403 | if (!str_to_decimal(str, &__val, 1, data, 0, 0)) { |
| 404 | *val = __val; |
| 405 | return 0; |
| 406 | } |
| 407 | |
| 408 | return 1; |
| 409 | } |
| 410 | |
| 411 | static int check_int(const char *p, int *val) |
| 412 | { |
| 413 | if (!strlen(p)) |
| 414 | return 1; |
| 415 | if (strstr(p, "0x") || strstr(p, "0X")) { |
| 416 | if (sscanf(p, "%x", val) == 1) |
| 417 | return 0; |
| 418 | } else { |
| 419 | if (sscanf(p, "%u", val) == 1) |
| 420 | return 0; |
| 421 | } |
| 422 | |
| 423 | return 1; |
| 424 | } |
| 425 | |
| 426 | static size_t opt_len(const char *str) |
| 427 | { |
| 428 | char *postfix; |
| 429 | |
| 430 | postfix = strchr(str, ':'); |
| 431 | if (!postfix) |
| 432 | return strlen(str); |
| 433 | |
| 434 | return (int)(postfix - str); |
| 435 | } |
| 436 | |
| 437 | static int str_match_len(const struct value_pair *vp, const char *str) |
| 438 | { |
| 439 | return max(strlen(vp->ival), opt_len(str)); |
| 440 | } |
| 441 | |
| 442 | #define val_store(ptr, val, off, or, data, o) \ |
| 443 | do { \ |
| 444 | ptr = td_var((data), (o), (off)); \ |
| 445 | if ((or)) \ |
| 446 | *ptr |= (val); \ |
| 447 | else \ |
| 448 | *ptr = (val); \ |
| 449 | } while (0) |
| 450 | |
| 451 | static int __handle_option(struct fio_option *o, const char *ptr, void *data, |
| 452 | int first, int more, int curr) |
| 453 | { |
| 454 | int il=0, *ilp; |
| 455 | fio_fp64_t *flp; |
| 456 | long long ull, *ullp; |
| 457 | long ul1, ul2; |
| 458 | double uf; |
| 459 | char **cp = NULL; |
| 460 | int ret = 0, is_time = 0; |
| 461 | const struct value_pair *vp; |
| 462 | struct value_pair posval[PARSE_MAX_VP]; |
| 463 | int i, all_skipped = 1; |
| 464 | |
| 465 | dprint(FD_PARSE, "__handle_option=%s, type=%d, ptr=%s\n", o->name, |
| 466 | o->type, ptr); |
| 467 | |
| 468 | if (!ptr && o->type != FIO_OPT_STR_SET && o->type != FIO_OPT_STR) { |
| 469 | log_err("Option %s requires an argument\n", o->name); |
| 470 | return 1; |
| 471 | } |
| 472 | |
| 473 | switch (o->type) { |
| 474 | case FIO_OPT_STR: |
| 475 | case FIO_OPT_STR_MULTI: { |
| 476 | fio_opt_str_fn *fn = o->cb; |
| 477 | |
| 478 | posval_sort(o, posval); |
| 479 | |
| 480 | ret = 1; |
| 481 | for (i = 0; i < PARSE_MAX_VP; i++) { |
| 482 | vp = &posval[i]; |
| 483 | if (!vp->ival || vp->ival[0] == '\0') |
| 484 | continue; |
| 485 | all_skipped = 0; |
| 486 | if (!strncmp(vp->ival, ptr, str_match_len(vp, ptr))) { |
| 487 | ret = 0; |
| 488 | if (o->off1) |
| 489 | val_store(ilp, vp->oval, o->off1, vp->orval, data, o); |
| 490 | continue; |
| 491 | } |
| 492 | } |
| 493 | |
| 494 | if (ret && !all_skipped) |
| 495 | show_option_values(o); |
| 496 | else if (fn) |
| 497 | ret = fn(data, ptr); |
| 498 | break; |
| 499 | } |
| 500 | case FIO_OPT_STR_VAL_TIME: |
| 501 | is_time = 1; |
| 502 | case FIO_OPT_INT: |
| 503 | case FIO_OPT_STR_VAL: { |
| 504 | fio_opt_str_val_fn *fn = o->cb; |
| 505 | char tmp[128], *p; |
| 506 | |
| 507 | if (!is_time && o->is_time) |
| 508 | is_time = o->is_time; |
| 509 | |
| 510 | tmp[sizeof(tmp) - 1] = '\0'; |
| 511 | strncpy(tmp, ptr, sizeof(tmp) - 1); |
| 512 | p = strchr(tmp, ','); |
| 513 | if (p) |
| 514 | *p = '\0'; |
| 515 | |
| 516 | if (is_time) |
| 517 | ret = check_str_time(tmp, &ull, o->is_seconds); |
| 518 | else |
| 519 | ret = check_str_bytes(tmp, &ull, data); |
| 520 | |
| 521 | dprint(FD_PARSE, " ret=%d, out=%llu\n", ret, ull); |
| 522 | |
| 523 | if (ret) |
| 524 | break; |
| 525 | if (o->pow2 && !is_power_of_2(ull)) { |
| 526 | log_err("%s: must be a power-of-2\n", o->name); |
| 527 | return 1; |
| 528 | } |
| 529 | |
| 530 | if (o->maxval && ull > o->maxval) { |
| 531 | log_err("max value out of range: %llu" |
| 532 | " (%u max)\n", ull, o->maxval); |
| 533 | return 1; |
| 534 | } |
| 535 | if (o->minval && ull < o->minval) { |
| 536 | log_err("min value out of range: %llu" |
| 537 | " (%u min)\n", ull, o->minval); |
| 538 | return 1; |
| 539 | } |
| 540 | if (o->posval[0].ival) { |
| 541 | posval_sort(o, posval); |
| 542 | |
| 543 | ret = 1; |
| 544 | for (i = 0; i < PARSE_MAX_VP; i++) { |
| 545 | vp = &posval[i]; |
| 546 | if (!vp->ival || vp->ival[0] == '\0') |
| 547 | continue; |
| 548 | if (vp->oval == ull) { |
| 549 | ret = 0; |
| 550 | break; |
| 551 | } |
| 552 | } |
| 553 | if (ret) { |
| 554 | log_err("fio: value %llu not allowed:\n", ull); |
| 555 | show_option_values(o); |
| 556 | return 1; |
| 557 | } |
| 558 | } |
| 559 | |
| 560 | if (fn) |
| 561 | ret = fn(data, &ull); |
| 562 | else { |
| 563 | if (o->type == FIO_OPT_INT) { |
| 564 | if (first) |
| 565 | val_store(ilp, ull, o->off1, 0, data, o); |
| 566 | if (curr == 1) { |
| 567 | if (o->off2) |
| 568 | val_store(ilp, ull, o->off2, 0, data, o); |
| 569 | } |
| 570 | if (curr == 2) { |
| 571 | if (o->off3) |
| 572 | val_store(ilp, ull, o->off3, 0, data, o); |
| 573 | } |
| 574 | if (!more) { |
| 575 | if (curr < 1) { |
| 576 | if (o->off2) |
| 577 | val_store(ilp, ull, o->off2, 0, data, o); |
| 578 | } |
| 579 | if (curr < 2) { |
| 580 | if (o->off3) |
| 581 | val_store(ilp, ull, o->off3, 0, data, o); |
| 582 | } |
| 583 | } |
| 584 | } else { |
| 585 | if (first) |
| 586 | val_store(ullp, ull, o->off1, 0, data, o); |
| 587 | if (!more) { |
| 588 | if (o->off2) |
| 589 | val_store(ullp, ull, o->off2, 0, data, o); |
| 590 | } |
| 591 | } |
| 592 | } |
| 593 | break; |
| 594 | } |
| 595 | case FIO_OPT_FLOAT_LIST: { |
| 596 | char *cp2; |
| 597 | |
| 598 | if (first) { |
| 599 | /* |
| 600 | ** Initialize precision to 0 and zero out list |
| 601 | ** in case specified list is shorter than default |
| 602 | */ |
| 603 | if (o->off2) { |
| 604 | ul2 = 0; |
| 605 | ilp = td_var(data, o, o->off2); |
| 606 | *ilp = ul2; |
| 607 | } |
| 608 | |
| 609 | flp = td_var(data, o, o->off1); |
| 610 | for(i = 0; i < o->maxlen; i++) |
| 611 | flp[i].u.f = 0.0; |
| 612 | } |
| 613 | if (curr >= o->maxlen) { |
| 614 | log_err("the list exceeding max length %d\n", |
| 615 | o->maxlen); |
| 616 | return 1; |
| 617 | } |
| 618 | if (!str_to_float(ptr, &uf, 0)) { /* this breaks if we ever have lists of times */ |
| 619 | log_err("not a floating point value: %s\n", ptr); |
| 620 | return 1; |
| 621 | } |
| 622 | if (uf > o->maxfp) { |
| 623 | log_err("value out of range: %f" |
| 624 | " (range max: %f)\n", uf, o->maxfp); |
| 625 | return 1; |
| 626 | } |
| 627 | if (uf < o->minfp) { |
| 628 | log_err("value out of range: %f" |
| 629 | " (range min: %f)\n", uf, o->minfp); |
| 630 | return 1; |
| 631 | } |
| 632 | |
| 633 | flp = td_var(data, o, o->off1); |
| 634 | flp[curr].u.f = uf; |
| 635 | |
| 636 | dprint(FD_PARSE, " out=%f\n", uf); |
| 637 | |
| 638 | /* |
| 639 | ** Calculate precision for output by counting |
| 640 | ** number of digits after period. Find first |
| 641 | ** period in entire remaining list each time |
| 642 | */ |
| 643 | cp2 = strchr(ptr, '.'); |
| 644 | if (cp2 != NULL) { |
| 645 | int len = 0; |
| 646 | |
| 647 | while (*++cp2 != '\0' && *cp2 >= '0' && *cp2 <= '9') |
| 648 | len++; |
| 649 | |
| 650 | if (o->off2) { |
| 651 | ilp = td_var(data, o, o->off2); |
| 652 | if (len > *ilp) |
| 653 | *ilp = len; |
| 654 | } |
| 655 | } |
| 656 | |
| 657 | break; |
| 658 | } |
| 659 | case FIO_OPT_STR_STORE: { |
| 660 | fio_opt_str_fn *fn = o->cb; |
| 661 | |
| 662 | if (!strlen(ptr)) |
| 663 | return 1; |
| 664 | |
| 665 | if (o->off1) { |
| 666 | cp = td_var(data, o, o->off1); |
| 667 | *cp = strdup(ptr); |
| 668 | } |
| 669 | |
| 670 | if (fn) |
| 671 | ret = fn(data, ptr); |
| 672 | else if (o->posval[0].ival) { |
| 673 | posval_sort(o, posval); |
| 674 | |
| 675 | ret = 1; |
| 676 | for (i = 0; i < PARSE_MAX_VP; i++) { |
| 677 | vp = &posval[i]; |
| 678 | if (!vp->ival || vp->ival[0] == '\0' || !cp) |
| 679 | continue; |
| 680 | all_skipped = 0; |
| 681 | if (!strncmp(vp->ival, ptr, str_match_len(vp, ptr))) { |
| 682 | char *rest; |
| 683 | |
| 684 | ret = 0; |
| 685 | if (vp->cb) |
| 686 | fn = vp->cb; |
| 687 | rest = strstr(*cp ?: ptr, ":"); |
| 688 | if (rest) { |
| 689 | if (*cp) |
| 690 | *rest = '\0'; |
| 691 | ptr = rest + 1; |
| 692 | } else |
| 693 | ptr = NULL; |
| 694 | break; |
| 695 | } |
| 696 | } |
| 697 | } |
| 698 | |
| 699 | if (!all_skipped) { |
| 700 | if (ret && !*cp) |
| 701 | show_option_values(o); |
| 702 | else if (ret && *cp) |
| 703 | ret = 0; |
| 704 | else if (fn && ptr) |
| 705 | ret = fn(data, ptr); |
| 706 | } |
| 707 | |
| 708 | break; |
| 709 | } |
| 710 | case FIO_OPT_RANGE: { |
| 711 | char tmp[128]; |
| 712 | char *p1, *p2; |
| 713 | |
| 714 | tmp[sizeof(tmp) - 1] = '\0'; |
| 715 | strncpy(tmp, ptr, sizeof(tmp) - 1); |
| 716 | |
| 717 | /* Handle bsrange with separate read,write values: */ |
| 718 | p1 = strchr(tmp, ','); |
| 719 | if (p1) |
| 720 | *p1 = '\0'; |
| 721 | |
| 722 | p1 = strchr(tmp, '-'); |
| 723 | if (!p1) { |
| 724 | p1 = strchr(tmp, ':'); |
| 725 | if (!p1) { |
| 726 | ret = 1; |
| 727 | break; |
| 728 | } |
| 729 | } |
| 730 | |
| 731 | p2 = p1 + 1; |
| 732 | *p1 = '\0'; |
| 733 | p1 = tmp; |
| 734 | |
| 735 | ret = 1; |
| 736 | if (!check_range_bytes(p1, &ul1, data) && |
| 737 | !check_range_bytes(p2, &ul2, data)) { |
| 738 | ret = 0; |
| 739 | if (ul1 > ul2) { |
| 740 | unsigned long foo = ul1; |
| 741 | |
| 742 | ul1 = ul2; |
| 743 | ul2 = foo; |
| 744 | } |
| 745 | |
| 746 | if (first) { |
| 747 | val_store(ilp, ul1, o->off1, 0, data, o); |
| 748 | val_store(ilp, ul2, o->off2, 0, data, o); |
| 749 | } |
| 750 | if (curr == 1) { |
| 751 | if (o->off3 && o->off4) { |
| 752 | val_store(ilp, ul1, o->off3, 0, data, o); |
| 753 | val_store(ilp, ul2, o->off4, 0, data, o); |
| 754 | } |
| 755 | } |
| 756 | if (curr == 2) { |
| 757 | if (o->off5 && o->off6) { |
| 758 | val_store(ilp, ul1, o->off5, 0, data, o); |
| 759 | val_store(ilp, ul2, o->off6, 0, data, o); |
| 760 | } |
| 761 | } |
| 762 | if (!more) { |
| 763 | if (curr < 1) { |
| 764 | if (o->off3 && o->off4) { |
| 765 | val_store(ilp, ul1, o->off3, 0, data, o); |
| 766 | val_store(ilp, ul2, o->off4, 0, data, o); |
| 767 | } |
| 768 | } |
| 769 | if (curr < 2) { |
| 770 | if (o->off5 && o->off6) { |
| 771 | val_store(ilp, ul1, o->off5, 0, data, o); |
| 772 | val_store(ilp, ul2, o->off6, 0, data, o); |
| 773 | } |
| 774 | } |
| 775 | } |
| 776 | } |
| 777 | |
| 778 | break; |
| 779 | } |
| 780 | case FIO_OPT_BOOL: |
| 781 | case FIO_OPT_STR_SET: { |
| 782 | fio_opt_int_fn *fn = o->cb; |
| 783 | |
| 784 | if (ptr) |
| 785 | ret = check_int(ptr, &il); |
| 786 | else if (o->type == FIO_OPT_BOOL) |
| 787 | ret = 1; |
| 788 | else |
| 789 | il = 1; |
| 790 | |
| 791 | dprint(FD_PARSE, " ret=%d, out=%d\n", ret, il); |
| 792 | |
| 793 | if (ret) |
| 794 | break; |
| 795 | |
| 796 | if (o->maxval && il > (int) o->maxval) { |
| 797 | log_err("max value out of range: %d (%d max)\n", |
| 798 | il, o->maxval); |
| 799 | return 1; |
| 800 | } |
| 801 | if (o->minval && il < o->minval) { |
| 802 | log_err("min value out of range: %d (%d min)\n", |
| 803 | il, o->minval); |
| 804 | return 1; |
| 805 | } |
| 806 | |
| 807 | if (o->neg) |
| 808 | il = !il; |
| 809 | |
| 810 | if (fn) |
| 811 | ret = fn(data, &il); |
| 812 | else { |
| 813 | if (first) |
| 814 | val_store(ilp, il, o->off1, 0, data, o); |
| 815 | if (!more) { |
| 816 | if (o->off2) |
| 817 | val_store(ilp, il, o->off2, 0, data, o); |
| 818 | } |
| 819 | } |
| 820 | break; |
| 821 | } |
| 822 | case FIO_OPT_DEPRECATED: |
| 823 | log_info("Option %s is deprecated\n", o->name); |
| 824 | ret = 1; |
| 825 | break; |
| 826 | default: |
| 827 | log_err("Bad option type %u\n", o->type); |
| 828 | ret = 1; |
| 829 | } |
| 830 | |
| 831 | if (ret) |
| 832 | return ret; |
| 833 | |
| 834 | if (o->verify) { |
| 835 | ret = o->verify(o, data); |
| 836 | if (ret) { |
| 837 | log_err("Correct format for offending option\n"); |
| 838 | log_err("%20s: %s\n", o->name, o->help); |
| 839 | show_option_help(o, 1); |
| 840 | } |
| 841 | } |
| 842 | |
| 843 | return ret; |
| 844 | } |
| 845 | |
| 846 | static int handle_option(struct fio_option *o, const char *__ptr, void *data) |
| 847 | { |
| 848 | char *o_ptr, *ptr, *ptr2; |
| 849 | int ret, done; |
| 850 | |
| 851 | dprint(FD_PARSE, "handle_option=%s, ptr=%s\n", o->name, __ptr); |
| 852 | |
| 853 | o_ptr = ptr = NULL; |
| 854 | if (__ptr) |
| 855 | o_ptr = ptr = strdup(__ptr); |
| 856 | |
| 857 | /* |
| 858 | * See if we have another set of parameters, hidden after a comma. |
| 859 | * Do this before parsing this round, to check if we should |
| 860 | * copy set 1 options to set 2. |
| 861 | */ |
| 862 | done = 0; |
| 863 | ret = 1; |
| 864 | do { |
| 865 | int __ret; |
| 866 | |
| 867 | ptr2 = NULL; |
| 868 | if (ptr && |
| 869 | (o->type != FIO_OPT_STR_STORE) && |
| 870 | (o->type != FIO_OPT_STR) && |
| 871 | (o->type != FIO_OPT_FLOAT_LIST)) { |
| 872 | ptr2 = strchr(ptr, ','); |
| 873 | if (ptr2 && *(ptr2 + 1) == '\0') |
| 874 | *ptr2 = '\0'; |
| 875 | if (o->type != FIO_OPT_STR_MULTI && o->type != FIO_OPT_RANGE) { |
| 876 | if (!ptr2) |
| 877 | ptr2 = strchr(ptr, ':'); |
| 878 | if (!ptr2) |
| 879 | ptr2 = strchr(ptr, '-'); |
| 880 | } |
| 881 | } else if (ptr && o->type == FIO_OPT_FLOAT_LIST) { |
| 882 | ptr2 = strchr(ptr, ':'); |
| 883 | } |
| 884 | |
| 885 | /* |
| 886 | * Don't return early if parsing the first option fails - if |
| 887 | * we are doing multiple arguments, we can allow the first one |
| 888 | * being empty. |
| 889 | */ |
| 890 | __ret = __handle_option(o, ptr, data, !done, !!ptr2, done); |
| 891 | if (ret) |
| 892 | ret = __ret; |
| 893 | |
| 894 | if (!ptr2) |
| 895 | break; |
| 896 | |
| 897 | ptr = ptr2 + 1; |
| 898 | done++; |
| 899 | } while (1); |
| 900 | |
| 901 | if (o_ptr) |
| 902 | free(o_ptr); |
| 903 | return ret; |
| 904 | } |
| 905 | |
| 906 | static struct fio_option *get_option(char *opt, |
| 907 | struct fio_option *options, char **post) |
| 908 | { |
| 909 | struct fio_option *o; |
| 910 | char *ret; |
| 911 | |
| 912 | ret = strchr(opt, '='); |
| 913 | if (ret) { |
| 914 | *post = ret; |
| 915 | *ret = '\0'; |
| 916 | ret = opt; |
| 917 | (*post)++; |
| 918 | strip_blank_end(ret); |
| 919 | o = find_option(options, ret); |
| 920 | } else { |
| 921 | o = find_option(options, opt); |
| 922 | *post = NULL; |
| 923 | } |
| 924 | |
| 925 | return o; |
| 926 | } |
| 927 | |
| 928 | static int opt_cmp(const void *p1, const void *p2) |
| 929 | { |
| 930 | struct fio_option *o; |
| 931 | char *s, *foo; |
| 932 | int prio1, prio2; |
| 933 | |
| 934 | prio1 = prio2 = 0; |
| 935 | |
| 936 | if (*(char **)p1) { |
| 937 | s = strdup(*((char **) p1)); |
| 938 | o = get_option(s, __fio_options, &foo); |
| 939 | if (o) |
| 940 | prio1 = o->prio; |
| 941 | free(s); |
| 942 | } |
| 943 | if (*(char **)p2) { |
| 944 | s = strdup(*((char **) p2)); |
| 945 | o = get_option(s, __fio_options, &foo); |
| 946 | if (o) |
| 947 | prio2 = o->prio; |
| 948 | free(s); |
| 949 | } |
| 950 | |
| 951 | return prio2 - prio1; |
| 952 | } |
| 953 | |
| 954 | void sort_options(char **opts, struct fio_option *options, int num_opts) |
| 955 | { |
| 956 | __fio_options = options; |
| 957 | qsort(opts, num_opts, sizeof(char *), opt_cmp); |
| 958 | __fio_options = NULL; |
| 959 | } |
| 960 | |
| 961 | int parse_cmd_option(const char *opt, const char *val, |
| 962 | struct fio_option *options, void *data) |
| 963 | { |
| 964 | struct fio_option *o; |
| 965 | |
| 966 | o = find_option(options, opt); |
| 967 | if (!o) { |
| 968 | log_err("Bad option <%s>\n", opt); |
| 969 | return 1; |
| 970 | } |
| 971 | |
| 972 | if (!handle_option(o, val, data)) |
| 973 | return 0; |
| 974 | |
| 975 | log_err("fio: failed parsing %s=%s\n", opt, val); |
| 976 | return 1; |
| 977 | } |
| 978 | |
| 979 | int parse_option(char *opt, const char *input, |
| 980 | struct fio_option *options, struct fio_option **o, void *data, |
| 981 | int dump_cmdline) |
| 982 | { |
| 983 | char *post; |
| 984 | |
| 985 | if (!opt) { |
| 986 | log_err("fio: failed parsing %s\n", input); |
| 987 | *o = NULL; |
| 988 | return 1; |
| 989 | } |
| 990 | |
| 991 | *o = get_option(opt, options, &post); |
| 992 | if (!*o) { |
| 993 | if (post) { |
| 994 | int len = strlen(opt); |
| 995 | if (opt + len + 1 != post) |
| 996 | memmove(opt + len + 1, post, strlen(post)); |
| 997 | opt[len] = '='; |
| 998 | } |
| 999 | return 1; |
| 1000 | } |
| 1001 | |
| 1002 | if (handle_option(*o, post, data)) { |
| 1003 | log_err("fio: failed parsing %s\n", input); |
| 1004 | return 1; |
| 1005 | } |
| 1006 | |
| 1007 | if (dump_cmdline) { |
| 1008 | const char *delim; |
| 1009 | |
| 1010 | if (!strcmp("description", (*o)->name)) |
| 1011 | delim = "\""; |
| 1012 | else |
| 1013 | delim = ""; |
| 1014 | |
| 1015 | log_info("--%s%s", (*o)->name, post ? "" : " "); |
| 1016 | if (post) |
| 1017 | log_info("=%s%s%s ", delim, post, delim); |
| 1018 | } |
| 1019 | |
| 1020 | return 0; |
| 1021 | } |
| 1022 | |
| 1023 | /* |
| 1024 | * Option match, levenshtein distance. Handy for not quite remembering what |
| 1025 | * the option name is. |
| 1026 | */ |
| 1027 | int string_distance(const char *s1, const char *s2) |
| 1028 | { |
| 1029 | unsigned int s1_len = strlen(s1); |
| 1030 | unsigned int s2_len = strlen(s2); |
| 1031 | unsigned int *p, *q, *r; |
| 1032 | unsigned int i, j; |
| 1033 | |
| 1034 | p = malloc(sizeof(unsigned int) * (s2_len + 1)); |
| 1035 | q = malloc(sizeof(unsigned int) * (s2_len + 1)); |
| 1036 | |
| 1037 | p[0] = 0; |
| 1038 | for (i = 1; i <= s2_len; i++) |
| 1039 | p[i] = p[i - 1] + 1; |
| 1040 | |
| 1041 | for (i = 1; i <= s1_len; i++) { |
| 1042 | q[0] = p[0] + 1; |
| 1043 | for (j = 1; j <= s2_len; j++) { |
| 1044 | unsigned int sub = p[j - 1]; |
| 1045 | unsigned int pmin; |
| 1046 | |
| 1047 | if (s1[i - 1] != s2[j - 1]) |
| 1048 | sub++; |
| 1049 | |
| 1050 | pmin = min(q[j - 1] + 1, sub); |
| 1051 | q[j] = min(p[j] + 1, pmin); |
| 1052 | } |
| 1053 | r = p; |
| 1054 | p = q; |
| 1055 | q = r; |
| 1056 | } |
| 1057 | |
| 1058 | i = p[s2_len]; |
| 1059 | free(p); |
| 1060 | free(q); |
| 1061 | return i; |
| 1062 | } |
| 1063 | |
| 1064 | /* |
| 1065 | * Make a guess of whether the distance from 's1' is significant enough |
| 1066 | * to warrant printing the guess. We set this to a 1/2 match. |
| 1067 | */ |
| 1068 | int string_distance_ok(const char *opt, int distance) |
| 1069 | { |
| 1070 | size_t len; |
| 1071 | |
| 1072 | len = strlen(opt); |
| 1073 | len = (len + 1) / 2; |
| 1074 | return distance <= len; |
| 1075 | } |
| 1076 | |
| 1077 | static struct fio_option *find_child(struct fio_option *options, |
| 1078 | struct fio_option *o) |
| 1079 | { |
| 1080 | struct fio_option *__o; |
| 1081 | |
| 1082 | for (__o = options + 1; __o->name; __o++) |
| 1083 | if (__o->parent && !strcmp(__o->parent, o->name)) |
| 1084 | return __o; |
| 1085 | |
| 1086 | return NULL; |
| 1087 | } |
| 1088 | |
| 1089 | static void __print_option(struct fio_option *o, struct fio_option *org, |
| 1090 | int level) |
| 1091 | { |
| 1092 | char name[256], *p; |
| 1093 | int depth; |
| 1094 | |
| 1095 | if (!o) |
| 1096 | return; |
| 1097 | if (!org) |
| 1098 | org = o; |
| 1099 | |
| 1100 | p = name; |
| 1101 | depth = level; |
| 1102 | while (depth--) |
| 1103 | p += sprintf(p, "%s", " "); |
| 1104 | |
| 1105 | sprintf(p, "%s", o->name); |
| 1106 | |
| 1107 | log_info("%-24s: %s\n", name, o->help); |
| 1108 | } |
| 1109 | |
| 1110 | static void print_option(struct fio_option *o) |
| 1111 | { |
| 1112 | struct fio_option *parent; |
| 1113 | struct fio_option *__o; |
| 1114 | unsigned int printed; |
| 1115 | unsigned int level; |
| 1116 | |
| 1117 | __print_option(o, NULL, 0); |
| 1118 | parent = o; |
| 1119 | level = 0; |
| 1120 | do { |
| 1121 | level++; |
| 1122 | printed = 0; |
| 1123 | |
| 1124 | while ((__o = find_child(o, parent)) != NULL) { |
| 1125 | __print_option(__o, o, level); |
| 1126 | o = __o; |
| 1127 | printed++; |
| 1128 | } |
| 1129 | |
| 1130 | parent = o; |
| 1131 | } while (printed); |
| 1132 | } |
| 1133 | |
| 1134 | int show_cmd_help(struct fio_option *options, const char *name) |
| 1135 | { |
| 1136 | struct fio_option *o, *closest; |
| 1137 | unsigned int best_dist = -1U; |
| 1138 | int found = 0; |
| 1139 | int show_all = 0; |
| 1140 | |
| 1141 | if (!name || !strcmp(name, "all")) |
| 1142 | show_all = 1; |
| 1143 | |
| 1144 | closest = NULL; |
| 1145 | best_dist = -1; |
| 1146 | for (o = &options[0]; o->name; o++) { |
| 1147 | int match = 0; |
| 1148 | |
| 1149 | if (o->type == FIO_OPT_DEPRECATED) |
| 1150 | continue; |
| 1151 | if (!exec_profile && o->prof_name) |
| 1152 | continue; |
| 1153 | if (exec_profile && !(o->prof_name && !strcmp(exec_profile, o->prof_name))) |
| 1154 | continue; |
| 1155 | |
| 1156 | if (name) { |
| 1157 | if (!strcmp(name, o->name) || |
| 1158 | (o->alias && !strcmp(name, o->alias))) |
| 1159 | match = 1; |
| 1160 | else { |
| 1161 | unsigned int dist; |
| 1162 | |
| 1163 | dist = string_distance(name, o->name); |
| 1164 | if (dist < best_dist) { |
| 1165 | best_dist = dist; |
| 1166 | closest = o; |
| 1167 | } |
| 1168 | } |
| 1169 | } |
| 1170 | |
| 1171 | if (show_all || match) { |
| 1172 | found = 1; |
| 1173 | if (match) |
| 1174 | log_info("%20s: %s\n", o->name, o->help); |
| 1175 | if (show_all) { |
| 1176 | if (!o->parent) |
| 1177 | print_option(o); |
| 1178 | continue; |
| 1179 | } |
| 1180 | } |
| 1181 | |
| 1182 | if (!match) |
| 1183 | continue; |
| 1184 | |
| 1185 | show_option_help(o, 0); |
| 1186 | } |
| 1187 | |
| 1188 | if (found) |
| 1189 | return 0; |
| 1190 | |
| 1191 | log_err("No such command: %s", name); |
| 1192 | |
| 1193 | /* |
| 1194 | * Only print an appropriately close option, one where the edit |
| 1195 | * distance isn't too big. Otherwise we get crazy matches. |
| 1196 | */ |
| 1197 | if (closest && best_dist < 3) { |
| 1198 | log_info(" - showing closest match\n"); |
| 1199 | log_info("%20s: %s\n", closest->name, closest->help); |
| 1200 | show_option_help(closest, 0); |
| 1201 | } else |
| 1202 | log_info("\n"); |
| 1203 | |
| 1204 | return 1; |
| 1205 | } |
| 1206 | |
| 1207 | /* |
| 1208 | * Handle parsing of default parameters. |
| 1209 | */ |
| 1210 | void fill_default_options(void *data, struct fio_option *options) |
| 1211 | { |
| 1212 | struct fio_option *o; |
| 1213 | |
| 1214 | dprint(FD_PARSE, "filling default options\n"); |
| 1215 | |
| 1216 | for (o = &options[0]; o->name; o++) |
| 1217 | if (o->def) |
| 1218 | handle_option(o, o->def, data); |
| 1219 | } |
| 1220 | |
| 1221 | void option_init(struct fio_option *o) |
| 1222 | { |
| 1223 | if (o->type == FIO_OPT_DEPRECATED) |
| 1224 | return; |
| 1225 | if (o->type == FIO_OPT_BOOL) { |
| 1226 | o->minval = 0; |
| 1227 | o->maxval = 1; |
| 1228 | } |
| 1229 | if (o->type == FIO_OPT_INT) { |
| 1230 | if (!o->maxval) |
| 1231 | o->maxval = UINT_MAX; |
| 1232 | } |
| 1233 | if (o->type == FIO_OPT_FLOAT_LIST) { |
| 1234 | o->minfp = DBL_MIN; |
| 1235 | o->maxfp = DBL_MAX; |
| 1236 | } |
| 1237 | if (o->type == FIO_OPT_STR_SET && o->def && !o->no_warn_def) { |
| 1238 | log_err("Option %s: string set option with" |
| 1239 | " default will always be true\n", o->name); |
| 1240 | } |
| 1241 | if (!o->cb && !o->off1) |
| 1242 | log_err("Option %s: neither cb nor offset given\n", o->name); |
| 1243 | if (!o->category) { |
| 1244 | log_info("Option %s: no category defined. Setting to misc\n", o->name); |
| 1245 | o->category = FIO_OPT_C_GENERAL; |
| 1246 | o->group = FIO_OPT_G_INVALID; |
| 1247 | } |
| 1248 | if (o->type == FIO_OPT_STR || o->type == FIO_OPT_STR_STORE || |
| 1249 | o->type == FIO_OPT_STR_MULTI) |
| 1250 | return; |
| 1251 | } |
| 1252 | |
| 1253 | /* |
| 1254 | * Sanitize the options structure. For now it just sets min/max for bool |
| 1255 | * values and whether both callback and offsets are given. |
| 1256 | */ |
| 1257 | void options_init(struct fio_option *options) |
| 1258 | { |
| 1259 | struct fio_option *o; |
| 1260 | |
| 1261 | dprint(FD_PARSE, "init options\n"); |
| 1262 | |
| 1263 | for (o = &options[0]; o->name; o++) { |
| 1264 | option_init(o); |
| 1265 | if (o->inverse) |
| 1266 | o->inv_opt = find_option(options, o->inverse); |
| 1267 | } |
| 1268 | } |
| 1269 | |
| 1270 | void options_free(struct fio_option *options, void *data) |
| 1271 | { |
| 1272 | struct fio_option *o; |
| 1273 | char **ptr; |
| 1274 | |
| 1275 | dprint(FD_PARSE, "free options\n"); |
| 1276 | |
| 1277 | for (o = &options[0]; o->name; o++) { |
| 1278 | if (o->type != FIO_OPT_STR_STORE || !o->off1) |
| 1279 | continue; |
| 1280 | |
| 1281 | ptr = td_var(data, o, o->off1); |
| 1282 | if (*ptr) { |
| 1283 | free(*ptr); |
| 1284 | *ptr = NULL; |
| 1285 | } |
| 1286 | } |
| 1287 | } |