1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2007, 2011 Robert N. M. Watson 5 * Copyright (c) 2015 Allan Jude <allanjude@freebsd.org> 6 * Copyright (c) 2017 Dell EMC 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 */ 30 31 #include <sys/cdefs.h> 32 __FBSDID("$FreeBSD$"); 33 34 #include <sys/param.h> 35 #include <sys/sysctl.h> 36 #include <sys/user.h> 37 38 #include <err.h> 39 #include <libprocstat.h> 40 #include <stdio.h> 41 #include <stdlib.h> 42 #include <string.h> 43 #include <sysexits.h> 44 #include <unistd.h> 45 46 #include "procstat.h" 47 48 enum { 49 PS_CMP_NORMAL = 0x00, 50 PS_CMP_PLURAL = 0x01, 51 PS_CMP_SUBSTR = 0x02 52 }; 53 54 struct procstat_cmd { 55 const char *command; 56 const char *xocontainer; 57 const char *usage; 58 void (*cmd)(struct procstat *, struct kinfo_proc *); 59 void (*opt)(int, char * const *); 60 int cmp; 61 }; 62 63 int procstat_opts = 0; 64 65 static void cmdopt_none(int argc, char * const argv[]); 66 static void cmdopt_verbose(int argc, char * const argv[]); 67 static void cmdopt_signals(int argc, char * const argv[]); 68 static void cmdopt_rusage(int argc, char * const argv[]); 69 static void cmdopt_files(int argc, char * const argv[]); 70 static void cmdopt_cpuset(int argc, char * const argv[]); 71 72 static const char *progname; 73 74 /* aliased program parameters and arguments 75 * - usage field is abused to hold the pointer to the function 76 * displaying program usage 77 */ 78 static const struct procstat_cmd pacmd_table[] = { 79 /* arguments are the same as for pwdx: pid or core file */ 80 { "pargs", "args", NULL, &procstat_pargs, &cmdopt_none, 81 PS_CMP_NORMAL | PS_MODE_COMPAT }, 82 { "penv", "env", NULL, &procstat_penv, &cmdopt_none, 83 PS_CMP_NORMAL | PS_MODE_COMPAT }, 84 { "pwdx", "pwd", NULL, &procstat_pwdx, &cmdopt_none, 85 PS_CMP_NORMAL | PS_MODE_COMPAT } 86 }; 87 88 /* procstat parameters and arguments */ 89 static const struct procstat_cmd cmd_table[] = { 90 { "advlock", "advisory_locks", NULL, &procstat_advlocks, &cmdopt_none, 91 PS_CMP_PLURAL | PS_CMP_SUBSTR | PS_MODE_NO_KINFO_PROC }, 92 { "argument", "arguments", NULL, &procstat_args, &cmdopt_none, 93 PS_CMP_PLURAL | PS_CMP_SUBSTR }, 94 { "auxv", "auxv", NULL, &procstat_auxv, &cmdopt_none, PS_CMP_NORMAL }, 95 { "basic", "basic", NULL, &procstat_basic, &cmdopt_none, 96 PS_CMP_NORMAL }, 97 { "binary", "binary", NULL, &procstat_bin, &cmdopt_none, 98 PS_CMP_SUBSTR }, 99 { "cpuset", "cs", NULL, &procstat_cs, &cmdopt_cpuset, PS_CMP_NORMAL }, 100 { "cs", "cs", NULL, &procstat_cs, &cmdopt_cpuset, PS_CMP_NORMAL }, 101 { "credential", "credentials", NULL, &procstat_cred, &cmdopt_none, 102 PS_CMP_PLURAL | PS_CMP_SUBSTR }, 103 { "environment", "environment", NULL, &procstat_env, &cmdopt_none, 104 PS_CMP_SUBSTR }, 105 { "fd", "files", "[-C]", &procstat_files, &cmdopt_files, 106 PS_CMP_PLURAL }, 107 { "file", "files", "[-C]", &procstat_files, &cmdopt_files, 108 PS_CMP_PLURAL }, 109 { "kstack", "kstack", "[-v]", &procstat_kstack, &cmdopt_verbose, 110 PS_CMP_NORMAL }, 111 { "pargs", "args", NULL, &procstat_pargs, &cmdopt_none, 112 PS_CMP_NORMAL }, 113 { "penv", "env", NULL, &procstat_penv, &cmdopt_none, 114 PS_CMP_NORMAL }, 115 { "ptlwpinfo", "ptlwpinfo", NULL, &procstat_ptlwpinfo, &cmdopt_none, 116 PS_CMP_NORMAL }, 117 { "pwdx", "pwd", NULL, &procstat_pwdx, &cmdopt_none, 118 PS_CMP_NORMAL }, 119 { "rlimit", "rlimit", NULL, &procstat_rlimit, &cmdopt_none, 120 PS_CMP_NORMAL }, 121 { "rusage", "rusage", "[-Ht]", &procstat_rusage, &cmdopt_rusage, 122 PS_CMP_NORMAL }, 123 { "sigfastblock", "sigfastblock", NULL, &procstat_sigfastblock, 124 &cmdopt_none, PS_CMP_NORMAL }, 125 { "signal", "signals", "[-n]", &procstat_sigs, &cmdopt_signals, 126 PS_CMP_PLURAL | PS_CMP_SUBSTR }, 127 { "thread", "threads", NULL, &procstat_threads, &cmdopt_none, 128 PS_CMP_PLURAL }, 129 { "tsignal", "thread_signals", "[-n]", &procstat_threads_sigs, 130 &cmdopt_signals, PS_CMP_PLURAL | PS_CMP_SUBSTR }, 131 { "vm", "vm", NULL, &procstat_vm, &cmdopt_none, PS_CMP_NORMAL } 132 }; 133 134 static void 135 usage(const struct procstat_cmd *cmd) 136 { 137 size_t i, l; 138 int multi; 139 140 if (cmd == NULL || (cmd->cmp & PS_MODE_COMPAT) == 0) { 141 xo_error("usage: procstat [--libxo] [-h] [-M core] [-N system]" 142 " [-w interval] command\n" 143 " [pid ... | core ...]\n" 144 " procstat [--libxo] -a [-h] [-M core] [-N system] " 145 " [-w interval] command\n" 146 " procstat [--libxo] [-h] [-M core] [-N system]" 147 " [-w interval]\n" 148 " [-S | -b | -c | -e | -f [-C] | -i [-n] | " 149 "-j [-n] | -k [-k] |\n" 150 " -l | -r [-H] | -s | -t | -v | -x] " 151 "[pid ... | core ...]\n" 152 " procstat [--libxo] -a [-h] [-M core] [-N system]" 153 " [-w interval]\n" 154 " [-S | -b | -c | -e | -f [-C] | -i [-n] | " 155 "-j [-n] | -k [-k] |\n" 156 " -l | -r [-H] | -s | -t | -v | -x]\n" 157 " procstat [--libxo] -L [-h] [-M core] [-N system] core ...\n" 158 "Available commands:\n"); 159 for (i = 0, l = nitems(cmd_table); i < l; i++) { 160 multi = i + 1 < l && cmd_table[i].cmd == 161 cmd_table[i + 1].cmd; 162 xo_error(" %s%s%s", multi ? "[" : "", 163 cmd_table[i].command, (cmd_table[i].cmp & 164 PS_CMP_PLURAL) ? "(s)" : ""); 165 for (; i + 1 < l && cmd_table[i].cmd == 166 cmd_table[i + 1].cmd; i++) 167 xo_error(" | %s%s", cmd_table[i + 1].command, 168 (cmd_table[i].cmp & PS_CMP_PLURAL) ? 169 "(s)" : ""); 170 if (multi) 171 xo_error("]"); 172 if (cmd_table[i].usage != NULL) 173 xo_error(" %s", cmd_table[i].usage); 174 xo_error("\n"); 175 } 176 } else { 177 xo_error("usage: %s [--libxo] pid ...\n", progname); 178 } 179 xo_finish(); 180 exit(EX_USAGE); 181 } 182 183 static void 184 procstat(const struct procstat_cmd *cmd, struct procstat *prstat, 185 struct kinfo_proc *kipp) 186 { 187 char *pidstr = NULL; 188 189 asprintf(&pidstr, "%d", kipp->ki_pid); 190 if (pidstr == NULL) 191 xo_errc(1, ENOMEM, "Failed to allocate memory in procstat()"); 192 xo_open_container(pidstr); 193 cmd->cmd(prstat, kipp); 194 xo_close_container(pidstr); 195 free(pidstr); 196 } 197 198 /* 199 * Sort processes first by pid and then tid. 200 */ 201 static int 202 kinfo_proc_compare(const void *a, const void *b) 203 { 204 int i; 205 206 i = ((const struct kinfo_proc *)a)->ki_pid - 207 ((const struct kinfo_proc *)b)->ki_pid; 208 if (i != 0) 209 return (i); 210 i = ((const struct kinfo_proc *)a)->ki_tid - 211 ((const struct kinfo_proc *)b)->ki_tid; 212 return (i); 213 } 214 215 void 216 kinfo_proc_sort(struct kinfo_proc *kipp, int count) 217 { 218 219 qsort(kipp, count, sizeof(*kipp), kinfo_proc_compare); 220 } 221 222 const char * 223 kinfo_proc_thread_name(const struct kinfo_proc *kipp) 224 { 225 static char name[MAXCOMLEN+1]; 226 227 strlcpy(name, kipp->ki_tdname, sizeof(name)); 228 strlcat(name, kipp->ki_moretdname, sizeof(name)); 229 if (name[0] == '\0' || strcmp(kipp->ki_comm, name) == 0) { 230 name[0] = '-'; 231 name[1] = '\0'; 232 } 233 234 return (name); 235 } 236 237 static const struct procstat_cmd * 238 getcmdbyprogname(const char *pprogname) 239 { 240 const char *ca; 241 size_t i; 242 243 if (pprogname == NULL) 244 return (NULL); 245 246 for (i = 0; i < nitems(pacmd_table); i++) { 247 ca = pacmd_table[i].command; 248 if (ca != NULL && strcmp(ca, pprogname) == 0) 249 return (&pacmd_table[i]); 250 } 251 252 return (NULL); 253 } 254 255 static const struct procstat_cmd * 256 getcmd(const char *str) 257 { 258 const struct procstat_cmd *cmd; 259 size_t i, l; 260 int cmp, s; 261 262 if (str == NULL) 263 return (NULL); 264 cmd = NULL; 265 if ((l = strlen(str)) == 0) 266 return (getcmd("basic")); 267 s = l > 1 && strcasecmp(str + l - 1, "s") == 0; 268 for (i = 0; i < nitems(cmd_table); i++) { 269 /* 270 * After the first match substring matches are disabled, 271 * allowing subsequent full matches to take precedence. 272 */ 273 if (cmd == NULL && (cmd_table[i].cmp & PS_CMP_SUBSTR)) 274 cmp = strncasecmp(str, cmd_table[i].command, l - 275 ((cmd_table[i].cmp & PS_CMP_PLURAL) && s ? 1 : 0)); 276 else if ((cmd_table[i].cmp & PS_CMP_PLURAL) && s && 277 l == strlen(cmd_table[i].command) + 1) 278 cmp = strncasecmp(str, cmd_table[i].command, l - 1); 279 else 280 cmp = strcasecmp(str, cmd_table[i].command); 281 if (cmp == 0) 282 cmd = &cmd_table[i]; 283 } 284 return (cmd); 285 } 286 287 int 288 main(int argc, char *argv[]) 289 { 290 struct kinfo_proc *p; 291 const struct procstat_cmd *cmd; 292 struct procstat *prstat, *cprstat; 293 char *dummy, *nlistf, *memf; 294 const char *xocontainer; 295 long l; 296 pid_t pid; 297 int aflag, ch, cnt, i, interval; 298 299 interval = 0; 300 cmd = NULL; 301 memf = nlistf = NULL; 302 aflag = 0; 303 argc = xo_parse_args(argc, argv); 304 305 progname = getprogname(); 306 cmd = getcmdbyprogname(progname); 307 308 while ((ch = getopt(argc, argv, "abCcefHhijkLlM:N:nrSstvw:x")) != -1) { 309 switch (ch) { 310 case 'a': 311 aflag++; 312 break; 313 case 'b': 314 if (cmd != NULL) 315 usage(cmd); 316 cmd = getcmd("binary"); 317 break; 318 case 'C': 319 procstat_opts |= PS_OPT_CAPABILITIES; 320 break; 321 case 'c': 322 if (cmd != NULL) 323 usage(cmd); 324 cmd = getcmd("arguments"); 325 break; 326 case 'e': 327 if (cmd != NULL) 328 usage(cmd); 329 cmd = getcmd("environment"); 330 break; 331 case 'f': 332 if (cmd != NULL) 333 usage(cmd); 334 cmd = getcmd("files"); 335 break; 336 case 'H': 337 procstat_opts |= PS_OPT_PERTHREAD; 338 break; 339 case 'h': 340 procstat_opts |= PS_OPT_NOHEADER; 341 break; 342 case 'i': 343 if (cmd != NULL) 344 usage(cmd); 345 cmd = getcmd("signals"); 346 break; 347 case 'j': 348 if (cmd != NULL) 349 usage(cmd); 350 cmd = getcmd("tsignals"); 351 break; 352 case 'k': 353 if (cmd != NULL && cmd->cmd == procstat_kstack) { 354 if ((procstat_opts & PS_OPT_VERBOSE) != 0) 355 usage(cmd); 356 procstat_opts |= PS_OPT_VERBOSE; 357 } else { 358 if (cmd != NULL) 359 usage(cmd); 360 cmd = getcmd("kstack"); 361 } 362 break; 363 case 'L': 364 if (cmd != NULL) 365 usage(cmd); 366 cmd = getcmd("ptlwpinfo"); 367 break; 368 case 'l': 369 if (cmd != NULL) 370 usage(cmd); 371 cmd = getcmd("rlimit"); 372 break; 373 case 'M': 374 memf = optarg; 375 break; 376 case 'N': 377 nlistf = optarg; 378 break; 379 case 'n': 380 procstat_opts |= PS_OPT_SIGNUM; 381 break; 382 case 'r': 383 if (cmd != NULL) 384 usage(cmd); 385 cmd = getcmd("rusage"); 386 break; 387 case 'S': 388 if (cmd != NULL) 389 usage(cmd); 390 cmd = getcmd("cpuset"); 391 break; 392 case 's': 393 if (cmd != NULL) 394 usage(cmd); 395 cmd = getcmd("credentials"); 396 break; 397 case 't': 398 if (cmd != NULL) 399 usage(cmd); 400 cmd = getcmd("threads"); 401 break; 402 case 'v': 403 if (cmd != NULL) 404 usage(cmd); 405 cmd = getcmd("vm"); 406 break; 407 case 'w': 408 l = strtol(optarg, &dummy, 10); 409 if (*dummy != '\0') 410 usage(cmd); 411 if (l < 1 || l > INT_MAX) 412 usage(cmd); 413 interval = l; 414 break; 415 case 'x': 416 if (cmd != NULL) 417 usage(cmd); 418 cmd = getcmd("auxv"); 419 break; 420 case '?': 421 default: 422 usage(cmd); 423 } 424 425 } 426 argc -= optind; 427 argv += optind; 428 429 if (cmd == NULL && argv[0] != NULL && (cmd = getcmd(argv[0])) != NULL) { 430 if ((procstat_opts & PS_SUBCOMMAND_OPTS) != 0) 431 usage(cmd); 432 if (cmd->opt != NULL) { 433 optreset = 1; 434 optind = 1; 435 cmd->opt(argc, argv); 436 if ((cmd->cmp & PS_MODE_COMPAT) == 0) { 437 argc -= optind; 438 argv += optind; 439 } 440 } else { 441 argc -= 1; 442 argv += 1; 443 } 444 } else { 445 if (cmd == NULL) 446 cmd = getcmd("basic"); 447 if (cmd->cmd != procstat_files && 448 (procstat_opts & PS_OPT_CAPABILITIES) != 0 && 449 (cmd->cmp & PS_MODE_COMPAT) == 0) 450 usage(cmd); 451 } 452 453 /* Must specify either the -a flag or a list of pids. */ 454 if (!(aflag == 1 && argc == 0) && !(aflag == 0 && argc > 0) && 455 (cmd->cmp & PS_MODE_NO_KINFO_PROC) == 0) 456 usage(cmd); 457 458 if (memf != NULL) 459 prstat = procstat_open_kvm(nlistf, memf); 460 else 461 prstat = procstat_open_sysctl(); 462 if (prstat == NULL) 463 xo_errx(1, "procstat_open()"); 464 do { 465 xocontainer = cmd->xocontainer != NULL ? cmd->xocontainer : 466 cmd->command; 467 xo_set_version(PROCSTAT_XO_VERSION); 468 xo_open_container(progname); 469 xo_open_container(xocontainer); 470 471 if ((cmd->cmp & PS_MODE_NO_KINFO_PROC) != 0) { 472 cmd->cmd(prstat, NULL); 473 goto iter; 474 } 475 476 if (aflag) { 477 p = procstat_getprocs(prstat, KERN_PROC_PROC, 0, &cnt); 478 if (p == NULL) 479 xo_errx(1, "procstat_getprocs()"); 480 kinfo_proc_sort(p, cnt); 481 for (i = 0; i < cnt; i++) { 482 procstat(cmd, prstat, &p[i]); 483 484 /* Suppress header after first process. */ 485 procstat_opts |= PS_OPT_NOHEADER; 486 xo_flush(); 487 } 488 procstat_freeprocs(prstat, p); 489 } 490 for (i = 0; i < argc; i++) { 491 l = strtol(argv[i], &dummy, 10); 492 if (*dummy == '\0') { 493 if (l < 0) 494 usage(cmd); 495 pid = l; 496 497 p = procstat_getprocs(prstat, KERN_PROC_PID, 498 pid, &cnt); 499 if (p == NULL) 500 xo_errx(1, "procstat_getprocs()"); 501 if (cnt != 0) 502 procstat(cmd, prstat, p); 503 procstat_freeprocs(prstat, p); 504 } else { 505 if ((cmd->cmp & PS_MODE_COMPAT) == 0) { 506 cprstat = procstat_open_core(argv[i]); 507 if (cprstat == NULL) { 508 warnx("procstat_open()"); 509 continue; 510 } 511 p = procstat_getprocs(cprstat, 512 KERN_PROC_PID, -1, &cnt); 513 if (p == NULL) { 514 xo_errx(1, 515 "procstat_getprocs()"); 516 } 517 if (cnt != 0) 518 procstat(cmd, cprstat, p); 519 procstat_freeprocs(cprstat, p); 520 procstat_close(cprstat); 521 } else { 522 usage(cmd); 523 } 524 } 525 if ((cmd->cmp & PS_MODE_COMPAT) == 0) { 526 /* Suppress header after first process. */ 527 procstat_opts |= PS_OPT_NOHEADER; 528 } 529 } 530 531 iter: 532 xo_close_container(xocontainer); 533 xo_close_container(progname); 534 xo_finish(); 535 if (interval) 536 sleep(interval); 537 } while (interval); 538 539 procstat_close(prstat); 540 541 exit(0); 542 } 543 544 void 545 cmdopt_none(int argc, char * const argv[]) 546 { 547 int ch; 548 549 while ((ch = getopt(argc, argv, "")) != -1) { 550 switch (ch) { 551 case '?': 552 default: 553 usage(NULL); 554 } 555 } 556 } 557 558 void 559 cmdopt_verbose(int argc, char * const argv[]) 560 { 561 int ch; 562 563 while ((ch = getopt(argc, argv, "v")) != -1) { 564 switch (ch) { 565 case 'v': 566 procstat_opts |= PS_OPT_VERBOSE; 567 break; 568 case '?': 569 default: 570 usage(NULL); 571 } 572 } 573 } 574 575 void 576 cmdopt_signals(int argc, char * const argv[]) 577 { 578 int ch; 579 580 while ((ch = getopt(argc, argv, "n")) != -1) { 581 switch (ch) { 582 case 'n': 583 procstat_opts |= PS_OPT_SIGNUM; 584 break; 585 case '?': 586 default: 587 usage(NULL); 588 } 589 } 590 } 591 592 void 593 cmdopt_rusage(int argc, char * const argv[]) 594 { 595 int ch; 596 597 while ((ch = getopt(argc, argv, "Ht")) != -1) { 598 switch (ch) { 599 case 'H': 600 /* FALLTHROUGH */ 601 case 't': 602 procstat_opts |= PS_OPT_PERTHREAD; 603 break; 604 case '?': 605 default: 606 usage(NULL); 607 } 608 } 609 } 610 611 void 612 cmdopt_files(int argc, char * const argv[]) 613 { 614 int ch; 615 616 while ((ch = getopt(argc, argv, "C")) != -1) { 617 switch (ch) { 618 case 'C': 619 procstat_opts |= PS_OPT_CAPABILITIES; 620 break; 621 case '?': 622 default: 623 usage(NULL); 624 } 625 } 626 } 627 628 void 629 cmdopt_cpuset(int argc, char * const argv[]) 630 { 631 632 procstat_opts |= PS_OPT_PERTHREAD; 633 cmdopt_none(argc, argv); 634 } 635