1 /*- 2 * Copyright (c) 1980, 1991, 1993, 1994 3 * The Regents of the University of California. All rights reserved. 4 * Copyright (c) 2002 Networks Associates Technologies, Inc. 5 * All rights reserved. 6 * 7 * Portions of this software were developed for the FreeBSD Project by 8 * ThinkSec AS and NAI Labs, the Security Research Division of Network 9 * Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035 10 * ("CBOSS"), as part of the DARPA CHATS research program. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 4. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 */ 36 37 #if 0 38 #ifndef lint 39 static const char copyright[] = 40 "@(#) Copyright (c) 1980, 1991, 1993, 1994\n\ 41 The Regents of the University of California. All rights reserved.\n"; 42 #endif /* not lint */ 43 44 #ifndef lint 45 static char sccsid[] = "@(#)pstat.c 8.16 (Berkeley) 5/9/95"; 46 #endif /* not lint */ 47 #endif 48 #include <sys/cdefs.h> 49 __FBSDID("$FreeBSD$"); 50 51 #include <sys/param.h> 52 #include <sys/time.h> 53 #include <sys/file.h> 54 #include <sys/stat.h> 55 #include <sys/stdint.h> 56 #include <sys/ioctl.h> 57 #include <sys/tty.h> 58 #include <sys/blist.h> 59 60 #include <sys/sysctl.h> 61 #include <vm/vm_param.h> 62 63 #include <err.h> 64 #include <errno.h> 65 #include <fcntl.h> 66 #include <kvm.h> 67 #include <libutil.h> 68 #include <limits.h> 69 #include <nlist.h> 70 #include <stdio.h> 71 #include <stdlib.h> 72 #include <string.h> 73 #include <unistd.h> 74 75 enum { 76 NL_CONSTTY, 77 NL_MAXFILES, 78 NL_NFILES, 79 NL_TTY_LIST, 80 NL_MARKER 81 }; 82 83 static struct { 84 int order; 85 const char *name; 86 } namelist[] = { 87 { NL_CONSTTY, "_constty" }, 88 { NL_MAXFILES, "_maxfiles" }, 89 { NL_NFILES, "_openfiles" }, 90 { NL_TTY_LIST, "_tty_list" }, 91 { NL_MARKER, "" }, 92 }; 93 #define NNAMES (sizeof(namelist) / sizeof(*namelist)) 94 static struct nlist nl[NNAMES]; 95 96 static int humanflag; 97 static int usenumflag; 98 static int totalflag; 99 static int swapflag; 100 static char *nlistf; 101 static char *memf; 102 static kvm_t *kd; 103 104 static const char *usagestr; 105 106 static void filemode(void); 107 static int getfiles(struct xfile **, size_t *); 108 static void swapmode(void); 109 static void ttymode(void); 110 static void ttyprt(struct xtty *); 111 static void usage(void); 112 113 int 114 main(int argc, char *argv[]) 115 { 116 int ch, quit, ret; 117 int fileflag, ttyflag; 118 unsigned int i; 119 char buf[_POSIX2_LINE_MAX]; 120 const char *opts; 121 122 fileflag = swapflag = ttyflag = 0; 123 124 /* We will behave like good old swapinfo if thus invoked */ 125 opts = strrchr(argv[0], '/'); 126 if (opts) 127 opts++; 128 else 129 opts = argv[0]; 130 if (!strcmp(opts, "swapinfo")) { 131 swapflag = 1; 132 opts = "ghkmM:N:"; 133 usagestr = "swapinfo [-ghkm] [-M core [-N system]]"; 134 } else { 135 opts = "TM:N:fghkmnst"; 136 usagestr = "pstat [-Tfghkmnst] [-M core [-N system]]"; 137 } 138 139 while ((ch = getopt(argc, argv, opts)) != -1) 140 switch (ch) { 141 case 'f': 142 fileflag = 1; 143 break; 144 case 'g': 145 setenv("BLOCKSIZE", "1G", 1); 146 break; 147 case 'h': 148 humanflag = 1; 149 break; 150 case 'k': 151 setenv("BLOCKSIZE", "1K", 1); 152 break; 153 case 'm': 154 setenv("BLOCKSIZE", "1M", 1); 155 break; 156 case 'M': 157 memf = optarg; 158 break; 159 case 'N': 160 nlistf = optarg; 161 break; 162 case 'n': 163 usenumflag = 1; 164 break; 165 case 's': 166 ++swapflag; 167 break; 168 case 'T': 169 totalflag = 1; 170 break; 171 case 't': 172 ttyflag = 1; 173 break; 174 default: 175 usage(); 176 } 177 argc -= optind; 178 argv += optind; 179 180 /* 181 * Initialize symbol names list. 182 */ 183 for (i = 0; i < NNAMES; i++) 184 nl[namelist[i].order].n_name = strdup(namelist[i].name); 185 186 if (memf != NULL) { 187 kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, buf); 188 if (kd == NULL) 189 errx(1, "kvm_openfiles: %s", buf); 190 if ((ret = kvm_nlist(kd, nl)) != 0) { 191 if (ret == -1) 192 errx(1, "kvm_nlist: %s", kvm_geterr(kd)); 193 quit = 0; 194 for (i = 0; nl[i].n_name[0] != '\0'; ++i) 195 if (nl[i].n_value == 0) { 196 quit = 1; 197 warnx("undefined symbol: %s", 198 nl[i].n_name); 199 } 200 if (quit) 201 exit(1); 202 } 203 } 204 if (!(fileflag | ttyflag | swapflag | totalflag)) 205 usage(); 206 if (fileflag || totalflag) 207 filemode(); 208 if (ttyflag) 209 ttymode(); 210 if (swapflag || totalflag) 211 swapmode(); 212 exit (0); 213 } 214 215 static void 216 usage(void) 217 { 218 fprintf(stderr, "usage: %s\n", usagestr); 219 exit (1); 220 } 221 222 static const char fhdr32[] = 223 " LOC TYPE FLG CNT MSG DATA OFFSET\n"; 224 /* c0000000 ------ RWAI 123 123 c0000000 1000000000000000 */ 225 226 static const char fhdr64[] = 227 " LOC TYPE FLG CNT MSG DATA OFFSET\n"; 228 /* c000000000000000 ------ RWAI 123 123 c000000000000000 1000000000000000 */ 229 230 static const char hdr[] = 231 " LINE INQ CAN LIN LOW OUTQ USE LOW COL SESS PGID STATE\n"; 232 233 static void 234 ttymode_kvm(void) 235 { 236 TAILQ_HEAD(, tty) tl; 237 struct tty *tp, tty; 238 struct xtty xt; 239 240 (void)printf("%s", hdr); 241 bzero(&xt, sizeof xt); 242 xt.xt_size = sizeof xt; 243 if (kvm_read(kd, nl[NL_TTY_LIST].n_value, &tl, sizeof tl) != sizeof tl) 244 errx(1, "kvm_read(): %s", kvm_geterr(kd)); 245 tp = TAILQ_FIRST(&tl); 246 while (tp != NULL) { 247 if (kvm_read(kd, (u_long)tp, &tty, sizeof tty) != sizeof tty) 248 errx(1, "kvm_read(): %s", kvm_geterr(kd)); 249 xt.xt_insize = tty.t_inq.ti_nblocks * TTYINQ_DATASIZE; 250 xt.xt_incc = tty.t_inq.ti_linestart - tty.t_inq.ti_begin; 251 xt.xt_inlc = tty.t_inq.ti_end - tty.t_inq.ti_linestart; 252 xt.xt_inlow = tty.t_inlow; 253 xt.xt_outsize = tty.t_outq.to_nblocks * TTYOUTQ_DATASIZE; 254 xt.xt_outcc = tty.t_outq.to_end - tty.t_outq.to_begin; 255 xt.xt_outlow = tty.t_outlow; 256 xt.xt_column = tty.t_column; 257 /* xt.xt_pgid = ... */ 258 /* xt.xt_sid = ... */ 259 xt.xt_flags = tty.t_flags; 260 xt.xt_dev = NODEV; 261 ttyprt(&xt); 262 tp = TAILQ_NEXT(&tty, t_list); 263 } 264 } 265 266 static void 267 ttymode_sysctl(void) 268 { 269 struct xtty *xttys; 270 size_t len; 271 unsigned int i, n; 272 273 (void)printf("%s", hdr); 274 if ((xttys = malloc(len = sizeof(*xttys))) == NULL) 275 err(1, "malloc()"); 276 while (sysctlbyname("kern.ttys", xttys, &len, 0, 0) == -1) { 277 if (errno != ENOMEM) 278 err(1, "sysctlbyname()"); 279 len *= 2; 280 if ((xttys = realloc(xttys, len)) == NULL) 281 err(1, "realloc()"); 282 } 283 n = len / sizeof(*xttys); 284 for (i = 0; i < n; i++) 285 ttyprt(&xttys[i]); 286 } 287 288 static void 289 ttymode(void) 290 { 291 292 if (kd != NULL) 293 ttymode_kvm(); 294 else 295 ttymode_sysctl(); 296 } 297 298 static struct { 299 int flag; 300 char val; 301 } ttystates[] = { 302 #if 0 303 { TF_NOPREFIX, 'N' }, 304 #endif 305 { TF_INITLOCK, 'I' }, 306 { TF_CALLOUT, 'C' }, 307 308 /* Keep these together -> 'Oi' and 'Oo'. */ 309 { TF_OPENED, 'O' }, 310 { TF_OPENED_IN, 'i' }, 311 { TF_OPENED_OUT, 'o' }, 312 { TF_OPENED_CONS, 'c' }, 313 314 { TF_GONE, 'G' }, 315 { TF_OPENCLOSE, 'B' }, 316 { TF_ASYNC, 'Y' }, 317 { TF_LITERAL, 'L' }, 318 319 /* Keep these together -> 'Hi' and 'Ho'. */ 320 { TF_HIWAT, 'H' }, 321 { TF_HIWAT_IN, 'i' }, 322 { TF_HIWAT_OUT, 'o' }, 323 324 { TF_STOPPED, 'S' }, 325 { TF_EXCLUDE, 'X' }, 326 { TF_BYPASS, 'l' }, 327 { TF_ZOMBIE, 'Z' }, 328 { TF_HOOK, 's' }, 329 330 /* Keep these together -> 'bi' and 'bo'. */ 331 { TF_BUSY, 'b' }, 332 { TF_BUSY_IN, 'i' }, 333 { TF_BUSY_OUT, 'o' }, 334 335 { 0, '\0'}, 336 }; 337 338 static void 339 ttyprt(struct xtty *xt) 340 { 341 int i, j; 342 char *name; 343 344 if (xt->xt_size != sizeof *xt) 345 errx(1, "struct xtty size mismatch"); 346 if (usenumflag || xt->xt_dev == 0 || 347 (name = devname(xt->xt_dev, S_IFCHR)) == NULL) 348 printf("%#10jx ", (uintmax_t)xt->xt_dev); 349 else 350 printf("%10s ", name); 351 printf("%5zu %4zu %4zu %4zu %5zu %4zu %4zu %5u %5d %5d ", 352 xt->xt_insize, xt->xt_incc, xt->xt_inlc, 353 (xt->xt_insize - xt->xt_inlow), xt->xt_outsize, 354 xt->xt_outcc, (xt->xt_outsize - xt->xt_outlow), 355 MIN(xt->xt_column, 99999), xt->xt_sid, xt->xt_pgid); 356 for (i = j = 0; ttystates[i].flag; i++) 357 if (xt->xt_flags & ttystates[i].flag) { 358 putchar(ttystates[i].val); 359 j++; 360 } 361 if (j == 0) 362 putchar('-'); 363 putchar('\n'); 364 } 365 366 static void 367 filemode(void) 368 { 369 struct xfile *fp, *buf; 370 char flagbuf[16], *fbp; 371 int maxf, openf; 372 size_t len; 373 static char const * const dtypes[] = { "???", "inode", "socket", 374 "pipe", "fifo", "kqueue", "crypto" }; 375 int i; 376 int wid; 377 378 if (kd != NULL) { 379 if (kvm_read(kd, nl[NL_MAXFILES].n_value, 380 &maxf, sizeof maxf) != sizeof maxf || 381 kvm_read(kd, nl[NL_NFILES].n_value, 382 &openf, sizeof openf) != sizeof openf) 383 errx(1, "kvm_read(): %s", kvm_geterr(kd)); 384 } else { 385 len = sizeof(int); 386 if (sysctlbyname("kern.maxfiles", &maxf, &len, 0, 0) == -1 || 387 sysctlbyname("kern.openfiles", &openf, &len, 0, 0) == -1) 388 err(1, "sysctlbyname()"); 389 } 390 391 if (totalflag) { 392 (void)printf("%3d/%3d files\n", openf, maxf); 393 return; 394 } 395 if (getfiles(&buf, &len) == -1) 396 return; 397 openf = len / sizeof *fp; 398 399 (void)printf("%d/%d open files\n", openf, maxf); 400 printf(sizeof(uintptr_t) == 4 ? fhdr32 : fhdr64); 401 wid = (int)sizeof(uintptr_t) * 2; 402 for (fp = (struct xfile *)buf, i = 0; i < openf; ++fp, ++i) { 403 if ((size_t)fp->xf_type >= sizeof(dtypes) / sizeof(dtypes[0])) 404 continue; 405 (void)printf("%*jx", wid, (uintmax_t)(uintptr_t)fp->xf_file); 406 (void)printf(" %-6.6s", dtypes[fp->xf_type]); 407 fbp = flagbuf; 408 if (fp->xf_flag & FREAD) 409 *fbp++ = 'R'; 410 if (fp->xf_flag & FWRITE) 411 *fbp++ = 'W'; 412 if (fp->xf_flag & FAPPEND) 413 *fbp++ = 'A'; 414 if (fp->xf_flag & FASYNC) 415 *fbp++ = 'I'; 416 *fbp = '\0'; 417 (void)printf(" %4s %3d", flagbuf, fp->xf_count); 418 (void)printf(" %3d", fp->xf_msgcount); 419 (void)printf(" %*jx", wid, (uintmax_t)(uintptr_t)fp->xf_data); 420 (void)printf(" %*jx\n", (int)sizeof(fp->xf_offset) * 2, 421 (uintmax_t)fp->xf_offset); 422 } 423 free(buf); 424 } 425 426 static int 427 getfiles(struct xfile **abuf, size_t *alen) 428 { 429 struct xfile *buf; 430 size_t len; 431 int mib[2]; 432 433 /* 434 * XXX 435 * Add emulation of KINFO_FILE here. 436 */ 437 if (kd != NULL) 438 errx(1, "files on dead kernel, not implemented"); 439 440 mib[0] = CTL_KERN; 441 mib[1] = KERN_FILE; 442 if (sysctl(mib, 2, NULL, &len, NULL, 0) == -1) { 443 warn("sysctl: KERN_FILE"); 444 return (-1); 445 } 446 if ((buf = malloc(len)) == NULL) 447 errx(1, "malloc"); 448 if (sysctl(mib, 2, buf, &len, NULL, 0) == -1) { 449 warn("sysctl: KERN_FILE"); 450 return (-1); 451 } 452 *abuf = buf; 453 *alen = len; 454 return (0); 455 } 456 457 /* 458 * swapmode is based on a program called swapinfo written 459 * by Kevin Lahey <kml@rokkaku.atl.ga.us>. 460 */ 461 462 #define CONVERT(v) ((int64_t)(v) * pagesize / blocksize) 463 #define CONVERT_BLOCKS(v) ((int64_t)(v) * pagesize) 464 static struct kvm_swap swtot; 465 static int nswdev; 466 467 static void 468 print_swap_header(void) 469 { 470 int hlen; 471 long blocksize; 472 const char *header; 473 474 header = getbsize(&hlen, &blocksize); 475 if (totalflag == 0) 476 (void)printf("%-15s %*s %8s %8s %8s\n", 477 "Device", hlen, header, 478 "Used", "Avail", "Capacity"); 479 } 480 481 static void 482 print_swap_line(const char *swdevname, intmax_t nblks, intmax_t bused, 483 intmax_t bavail, float bpercent) 484 { 485 char usedbuf[5]; 486 char availbuf[5]; 487 int hlen, pagesize; 488 long blocksize; 489 490 pagesize = getpagesize(); 491 getbsize(&hlen, &blocksize); 492 493 printf("%-15s %*jd ", swdevname, hlen, CONVERT(nblks)); 494 if (humanflag) { 495 humanize_number(usedbuf, sizeof(usedbuf), 496 CONVERT_BLOCKS(bused), "", 497 HN_AUTOSCALE, HN_B | HN_NOSPACE | HN_DECIMAL); 498 humanize_number(availbuf, sizeof(availbuf), 499 CONVERT_BLOCKS(bavail), "", 500 HN_AUTOSCALE, HN_B | HN_NOSPACE | HN_DECIMAL); 501 printf("%8s %8s %5.0f%%\n", usedbuf, availbuf, bpercent); 502 } else { 503 printf("%8jd %8jd %5.0f%%\n", (intmax_t)CONVERT(bused), 504 (intmax_t)CONVERT(bavail), bpercent); 505 } 506 } 507 508 static void 509 print_swap(struct kvm_swap *ksw) 510 { 511 512 swtot.ksw_total += ksw->ksw_total; 513 swtot.ksw_used += ksw->ksw_used; 514 ++nswdev; 515 if (totalflag == 0) 516 print_swap_line(ksw->ksw_devname, ksw->ksw_total, 517 ksw->ksw_used, ksw->ksw_total - ksw->ksw_used, 518 (ksw->ksw_used * 100.0) / ksw->ksw_total); 519 } 520 521 static void 522 print_swap_total(void) 523 { 524 int hlen, pagesize; 525 long blocksize; 526 527 pagesize = getpagesize(); 528 getbsize(&hlen, &blocksize); 529 if (totalflag) { 530 blocksize = 1024 * 1024; 531 (void)printf("%jdM/%jdM swap space\n", 532 CONVERT(swtot.ksw_used), CONVERT(swtot.ksw_total)); 533 } else if (nswdev > 1) { 534 print_swap_line("Total", swtot.ksw_total, swtot.ksw_used, 535 swtot.ksw_total - swtot.ksw_used, 536 (swtot.ksw_used * 100.0) / swtot.ksw_total); 537 } 538 } 539 540 static void 541 swapmode_kvm(void) 542 { 543 struct kvm_swap kswap[16]; 544 int i, n; 545 546 n = kvm_getswapinfo(kd, kswap, sizeof kswap / sizeof kswap[0], 547 SWIF_DEV_PREFIX); 548 549 print_swap_header(); 550 for (i = 0; i < n; ++i) 551 print_swap(&kswap[i]); 552 print_swap_total(); 553 } 554 555 static void 556 swapmode_sysctl(void) 557 { 558 struct kvm_swap ksw; 559 struct xswdev xsw; 560 size_t mibsize, size; 561 int mib[16], n; 562 563 print_swap_header(); 564 mibsize = sizeof mib / sizeof mib[0]; 565 if (sysctlnametomib("vm.swap_info", mib, &mibsize) == -1) 566 err(1, "sysctlnametomib()"); 567 for (n = 0; ; ++n) { 568 mib[mibsize] = n; 569 size = sizeof xsw; 570 if (sysctl(mib, mibsize + 1, &xsw, &size, NULL, 0) == -1) 571 break; 572 if (xsw.xsw_version != XSWDEV_VERSION) 573 errx(1, "xswdev version mismatch"); 574 if (xsw.xsw_dev == NODEV) 575 snprintf(ksw.ksw_devname, sizeof ksw.ksw_devname, 576 "<NFSfile>"); 577 else 578 snprintf(ksw.ksw_devname, sizeof ksw.ksw_devname, 579 "/dev/%s", devname(xsw.xsw_dev, S_IFCHR)); 580 ksw.ksw_used = xsw.xsw_used; 581 ksw.ksw_total = xsw.xsw_nblks; 582 ksw.ksw_flags = xsw.xsw_flags; 583 print_swap(&ksw); 584 } 585 if (errno != ENOENT) 586 err(1, "sysctl()"); 587 print_swap_total(); 588 } 589 590 static void 591 swapmode(void) 592 { 593 if (kd != NULL) 594 swapmode_kvm(); 595 else 596 swapmode_sysctl(); 597 } 598