kern_sysctl.c revision 1.20.2.2
1 /* $NetBSD: kern_sysctl.c,v 1.20.2.2 1997/01/18 04:31:42 thorpej Exp $ */ 2 3 /*- 4 * Copyright (c) 1982, 1986, 1989, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * Mike Karels at Berkeley Software Design, Inc. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the University of 21 * California, Berkeley and its contributors. 22 * 4. Neither the name of the University nor the names of its contributors 23 * may be used to endorse or promote products derived from this software 24 * without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 29 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 36 * SUCH DAMAGE. 37 * 38 * @(#)kern_sysctl.c 8.4 (Berkeley) 4/14/94 39 */ 40 41 /* 42 * sysctl system call. 43 */ 44 45 #include <sys/param.h> 46 #include <sys/systm.h> 47 #include <sys/kernel.h> 48 #include <sys/malloc.h> 49 #include <sys/proc.h> 50 #include <sys/file.h> 51 #include <sys/vnode.h> 52 #include <sys/unistd.h> 53 #include <sys/buf.h> 54 #include <sys/ioctl.h> 55 #include <sys/tty.h> 56 #include <sys/disklabel.h> 57 #include <sys/device.h> 58 #include <vm/vm.h> 59 #include <sys/sysctl.h> 60 61 #include <sys/mount.h> 62 #include <sys/syscallargs.h> 63 64 /* 65 * Locking and stats 66 */ 67 static struct sysctl_lock { 68 int sl_lock; 69 int sl_want; 70 int sl_locked; 71 } memlock; 72 73 int 74 sys___sysctl(p, v, retval) 75 struct proc *p; 76 void *v; 77 register_t *retval; 78 { 79 register struct sys___sysctl_args /* { 80 syscallarg(int *) name; 81 syscallarg(u_int) namelen; 82 syscallarg(void *) old; 83 syscallarg(size_t *) oldlenp; 84 syscallarg(void *) new; 85 syscallarg(size_t) newlen; 86 } */ *uap = v; 87 int error, dolock = 1; 88 size_t savelen = 0, oldlen = 0; 89 sysctlfn *fn; 90 int name[CTL_MAXNAME]; 91 92 if (SCARG(uap, new) != NULL && 93 (error = suser(p->p_ucred, &p->p_acflag))) 94 return (error); 95 /* 96 * all top-level sysctl names are non-terminal 97 */ 98 if (SCARG(uap, namelen) > CTL_MAXNAME || SCARG(uap, namelen) < 2) 99 return (EINVAL); 100 error = copyin(SCARG(uap, name), &name, 101 SCARG(uap, namelen) * sizeof(int)); 102 if (error) 103 return (error); 104 105 switch (name[0]) { 106 case CTL_KERN: 107 fn = kern_sysctl; 108 if (name[2] != KERN_VNODE) /* XXX */ 109 dolock = 0; 110 break; 111 case CTL_HW: 112 fn = hw_sysctl; 113 break; 114 case CTL_VM: 115 fn = vm_sysctl; 116 break; 117 case CTL_NET: 118 fn = net_sysctl; 119 break; 120 #ifdef notyet 121 case CTL_FS: 122 fn = fs_sysctl; 123 break; 124 #endif 125 case CTL_MACHDEP: 126 fn = cpu_sysctl; 127 break; 128 #ifdef DEBUG 129 case CTL_DEBUG: 130 fn = debug_sysctl; 131 break; 132 #endif 133 #ifdef DDB 134 case CTL_DDB: 135 fn = ddb_sysctl; 136 break; 137 #endif 138 default: 139 return (EOPNOTSUPP); 140 } 141 142 if (SCARG(uap, oldlenp) && 143 (error = copyin(SCARG(uap, oldlenp), &oldlen, sizeof(oldlen)))) 144 return (error); 145 if (SCARG(uap, old) != NULL) { 146 if (!useracc(SCARG(uap, old), oldlen, B_WRITE)) 147 return (EFAULT); 148 while (memlock.sl_lock) { 149 memlock.sl_want = 1; 150 sleep((caddr_t)&memlock, PRIBIO+1); 151 memlock.sl_locked++; 152 } 153 memlock.sl_lock = 1; 154 if (dolock) 155 vslock(SCARG(uap, old), oldlen); 156 savelen = oldlen; 157 } 158 error = (*fn)(name + 1, SCARG(uap, namelen) - 1, SCARG(uap, old), 159 &oldlen, SCARG(uap, new), SCARG(uap, newlen), p); 160 if (SCARG(uap, old) != NULL) { 161 if (dolock) 162 vsunlock(SCARG(uap, old), savelen); 163 memlock.sl_lock = 0; 164 if (memlock.sl_want) { 165 memlock.sl_want = 0; 166 wakeup((caddr_t)&memlock); 167 } 168 } 169 if (error) 170 return (error); 171 if (SCARG(uap, oldlenp)) 172 error = copyout(&oldlen, SCARG(uap, oldlenp), sizeof(oldlen)); 173 return (error); 174 } 175 176 /* 177 * Attributes stored in the kernel. 178 */ 179 char hostname[MAXHOSTNAMELEN]; 180 int hostnamelen; 181 char domainname[MAXHOSTNAMELEN]; 182 int domainnamelen; 183 long hostid; 184 #ifdef INSECURE 185 int securelevel = -1; 186 #else 187 int securelevel = 0; 188 #endif 189 190 /* 191 * kernel related system variables. 192 */ 193 int 194 kern_sysctl(name, namelen, oldp, oldlenp, newp, newlen, p) 195 int *name; 196 u_int namelen; 197 void *oldp; 198 size_t *oldlenp; 199 void *newp; 200 size_t newlen; 201 struct proc *p; 202 { 203 int error, level, inthostid; 204 int old_autonicetime; 205 extern char ostype[], osrelease[], version[]; 206 207 /* all sysctl names at this level are terminal */ 208 if (namelen != 1 && !(name[0] == KERN_PROC || name[0] == KERN_PROF)) 209 return (ENOTDIR); /* overloaded */ 210 211 switch (name[0]) { 212 case KERN_OSTYPE: 213 return (sysctl_rdstring(oldp, oldlenp, newp, ostype)); 214 case KERN_OSRELEASE: 215 return (sysctl_rdstring(oldp, oldlenp, newp, osrelease)); 216 case KERN_OSREV: 217 return (sysctl_rdint(oldp, oldlenp, newp, BSD)); 218 case KERN_VERSION: 219 return (sysctl_rdstring(oldp, oldlenp, newp, version)); 220 case KERN_MAXVNODES: 221 return(sysctl_int(oldp, oldlenp, newp, newlen, &desiredvnodes)); 222 case KERN_MAXPROC: 223 return (sysctl_int(oldp, oldlenp, newp, newlen, &maxproc)); 224 case KERN_MAXFILES: 225 return (sysctl_int(oldp, oldlenp, newp, newlen, &maxfiles)); 226 case KERN_ARGMAX: 227 return (sysctl_rdint(oldp, oldlenp, newp, ARG_MAX)); 228 case KERN_SECURELVL: 229 level = securelevel; 230 if ((error = sysctl_int(oldp, oldlenp, newp, newlen, &level)) || 231 newp == NULL) 232 return (error); 233 if (level < securelevel && p->p_pid != 1) 234 return (EPERM); 235 securelevel = level; 236 return (0); 237 case KERN_HOSTNAME: 238 error = sysctl_string(oldp, oldlenp, newp, newlen, 239 hostname, sizeof(hostname)); 240 if (newp && !error) 241 hostnamelen = newlen; 242 return (error); 243 case KERN_DOMAINNAME: 244 error = sysctl_string(oldp, oldlenp, newp, newlen, 245 domainname, sizeof(domainname)); 246 if (newp && !error) 247 domainnamelen = newlen; 248 return (error); 249 case KERN_HOSTID: 250 inthostid = hostid; /* XXX assumes sizeof long <= sizeof int */ 251 error = sysctl_int(oldp, oldlenp, newp, newlen, &inthostid); 252 hostid = inthostid; 253 return (error); 254 case KERN_CLOCKRATE: 255 return (sysctl_clockrate(oldp, oldlenp)); 256 case KERN_BOOTTIME: 257 return (sysctl_rdstruct(oldp, oldlenp, newp, &boottime, 258 sizeof(struct timeval))); 259 case KERN_VNODE: 260 return (sysctl_vnode(oldp, oldlenp)); 261 case KERN_PROC: 262 return (sysctl_doproc(name + 1, namelen - 1, oldp, oldlenp)); 263 case KERN_FILE: 264 return (sysctl_file(oldp, oldlenp)); 265 #ifdef GPROF 266 case KERN_PROF: 267 return (sysctl_doprof(name + 1, namelen - 1, oldp, oldlenp, 268 newp, newlen)); 269 #endif 270 case KERN_POSIX1: 271 return (sysctl_rdint(oldp, oldlenp, newp, _POSIX_VERSION)); 272 case KERN_NGROUPS: 273 return (sysctl_rdint(oldp, oldlenp, newp, NGROUPS_MAX)); 274 case KERN_JOB_CONTROL: 275 return (sysctl_rdint(oldp, oldlenp, newp, 1)); 276 case KERN_SAVED_IDS: 277 #ifdef _POSIX_SAVED_IDS 278 return (sysctl_rdint(oldp, oldlenp, newp, 1)); 279 #else 280 return (sysctl_rdint(oldp, oldlenp, newp, 0)); 281 #endif 282 case KERN_MAXPARTITIONS: 283 return (sysctl_rdint(oldp, oldlenp, newp, MAXPARTITIONS)); 284 case KERN_RAWPARTITION: 285 return (sysctl_rdint(oldp, oldlenp, newp, RAW_PART)); 286 #ifdef NTP 287 case KERN_NTPTIME: 288 return (sysctl_ntptime(oldp, oldlenp)); 289 #endif 290 case KERN_AUTONICETIME: 291 old_autonicetime = autonicetime; 292 error = sysctl_int(oldp, oldlenp, newp, newlen, &autonicetime); 293 if (autonicetime < 0) 294 autonicetime = old_autonicetime; 295 return (error); 296 case KERN_AUTONICEVAL: 297 error = sysctl_int(oldp, oldlenp, newp, newlen, &autoniceval); 298 if (autoniceval < PRIO_MIN) 299 autoniceval = PRIO_MIN; 300 if (autoniceval > PRIO_MAX) 301 autoniceval = PRIO_MAX; 302 return (error); 303 case KERN_RTC_OFFSET: 304 return (sysctl_rdint(oldp, oldlenp, newp, rtc_offset)); 305 case KERN_ROOT_DEVICE: 306 return (sysctl_rdstring(oldp, oldlenp, newp, 307 root_device->dv_xname)); 308 default: 309 return (EOPNOTSUPP); 310 } 311 /* NOTREACHED */ 312 } 313 314 /* 315 * hardware related system variables. 316 */ 317 int 318 hw_sysctl(name, namelen, oldp, oldlenp, newp, newlen, p) 319 int *name; 320 u_int namelen; 321 void *oldp; 322 size_t *oldlenp; 323 void *newp; 324 size_t newlen; 325 struct proc *p; 326 { 327 extern char machine[], cpu_model[]; 328 329 /* all sysctl names at this level are terminal */ 330 if (namelen != 1) 331 return (ENOTDIR); /* overloaded */ 332 333 switch (name[0]) { 334 case HW_MACHINE: 335 return (sysctl_rdstring(oldp, oldlenp, newp, machine)); 336 case HW_MODEL: 337 return (sysctl_rdstring(oldp, oldlenp, newp, cpu_model)); 338 case HW_NCPU: 339 return (sysctl_rdint(oldp, oldlenp, newp, 1)); /* XXX */ 340 case HW_BYTEORDER: 341 return (sysctl_rdint(oldp, oldlenp, newp, BYTE_ORDER)); 342 case HW_PHYSMEM: 343 return (sysctl_rdint(oldp, oldlenp, newp, ctob(physmem))); 344 case HW_USERMEM: 345 return (sysctl_rdint(oldp, oldlenp, newp, 346 ctob(physmem - cnt.v_wire_count))); 347 case HW_PAGESIZE: 348 return (sysctl_rdint(oldp, oldlenp, newp, PAGE_SIZE)); 349 default: 350 return (EOPNOTSUPP); 351 } 352 /* NOTREACHED */ 353 } 354 355 #ifdef DEBUG 356 /* 357 * Debugging related system variables. 358 */ 359 struct ctldebug debug0, debug1, debug2, debug3, debug4; 360 struct ctldebug debug5, debug6, debug7, debug8, debug9; 361 struct ctldebug debug10, debug11, debug12, debug13, debug14; 362 struct ctldebug debug15, debug16, debug17, debug18, debug19; 363 static struct ctldebug *debugvars[CTL_DEBUG_MAXID] = { 364 &debug0, &debug1, &debug2, &debug3, &debug4, 365 &debug5, &debug6, &debug7, &debug8, &debug9, 366 &debug10, &debug11, &debug12, &debug13, &debug14, 367 &debug15, &debug16, &debug17, &debug18, &debug19, 368 }; 369 int 370 debug_sysctl(name, namelen, oldp, oldlenp, newp, newlen, p) 371 int *name; 372 u_int namelen; 373 void *oldp; 374 size_t *oldlenp; 375 void *newp; 376 size_t newlen; 377 struct proc *p; 378 { 379 struct ctldebug *cdp; 380 381 /* all sysctl names at this level are name and field */ 382 if (namelen != 2) 383 return (ENOTDIR); /* overloaded */ 384 cdp = debugvars[name[0]]; 385 if (cdp->debugname == 0) 386 return (EOPNOTSUPP); 387 switch (name[1]) { 388 case CTL_DEBUG_NAME: 389 return (sysctl_rdstring(oldp, oldlenp, newp, cdp->debugname)); 390 case CTL_DEBUG_VALUE: 391 return (sysctl_int(oldp, oldlenp, newp, newlen, cdp->debugvar)); 392 default: 393 return (EOPNOTSUPP); 394 } 395 /* NOTREACHED */ 396 } 397 #endif /* DEBUG */ 398 399 /* 400 * Validate parameters and get old / set new parameters 401 * for an integer-valued sysctl function. 402 */ 403 int 404 sysctl_int(oldp, oldlenp, newp, newlen, valp) 405 void *oldp; 406 size_t *oldlenp; 407 void *newp; 408 size_t newlen; 409 int *valp; 410 { 411 int error = 0; 412 413 if (oldp && *oldlenp < sizeof(int)) 414 return (ENOMEM); 415 if (newp && newlen != sizeof(int)) 416 return (EINVAL); 417 *oldlenp = sizeof(int); 418 if (oldp) 419 error = copyout(valp, oldp, sizeof(int)); 420 if (error == 0 && newp) 421 error = copyin(newp, valp, sizeof(int)); 422 return (error); 423 } 424 425 /* 426 * As above, but read-only. 427 */ 428 int 429 sysctl_rdint(oldp, oldlenp, newp, val) 430 void *oldp; 431 size_t *oldlenp; 432 void *newp; 433 int val; 434 { 435 int error = 0; 436 437 if (oldp && *oldlenp < sizeof(int)) 438 return (ENOMEM); 439 if (newp) 440 return (EPERM); 441 *oldlenp = sizeof(int); 442 if (oldp) 443 error = copyout((caddr_t)&val, oldp, sizeof(int)); 444 return (error); 445 } 446 447 /* 448 * Validate parameters and get old / set new parameters 449 * for a string-valued sysctl function. 450 */ 451 int 452 sysctl_string(oldp, oldlenp, newp, newlen, str, maxlen) 453 void *oldp; 454 size_t *oldlenp; 455 void *newp; 456 size_t newlen; 457 char *str; 458 int maxlen; 459 { 460 int len, error = 0; 461 462 len = strlen(str) + 1; 463 if (oldp && *oldlenp < len) 464 return (ENOMEM); 465 if (newp && newlen >= maxlen) 466 return (EINVAL); 467 if (oldp) { 468 *oldlenp = len; 469 error = copyout(str, oldp, len); 470 } 471 if (error == 0 && newp) { 472 error = copyin(newp, str, newlen); 473 str[newlen] = 0; 474 } 475 return (error); 476 } 477 478 /* 479 * As above, but read-only. 480 */ 481 int 482 sysctl_rdstring(oldp, oldlenp, newp, str) 483 void *oldp; 484 size_t *oldlenp; 485 void *newp; 486 char *str; 487 { 488 int len, error = 0; 489 490 len = strlen(str) + 1; 491 if (oldp && *oldlenp < len) 492 return (ENOMEM); 493 if (newp) 494 return (EPERM); 495 *oldlenp = len; 496 if (oldp) 497 error = copyout(str, oldp, len); 498 return (error); 499 } 500 501 /* 502 * Validate parameters and get old / set new parameters 503 * for a structure oriented sysctl function. 504 */ 505 int 506 sysctl_struct(oldp, oldlenp, newp, newlen, sp, len) 507 void *oldp; 508 size_t *oldlenp; 509 void *newp; 510 size_t newlen; 511 void *sp; 512 int len; 513 { 514 int error = 0; 515 516 if (oldp && *oldlenp < len) 517 return (ENOMEM); 518 if (newp && newlen > len) 519 return (EINVAL); 520 if (oldp) { 521 *oldlenp = len; 522 error = copyout(sp, oldp, len); 523 } 524 if (error == 0 && newp) 525 error = copyin(newp, sp, len); 526 return (error); 527 } 528 529 /* 530 * Validate parameters and get old parameters 531 * for a structure oriented sysctl function. 532 */ 533 int 534 sysctl_rdstruct(oldp, oldlenp, newp, sp, len) 535 void *oldp; 536 size_t *oldlenp; 537 void *newp, *sp; 538 int len; 539 { 540 int error = 0; 541 542 if (oldp && *oldlenp < len) 543 return (ENOMEM); 544 if (newp) 545 return (EPERM); 546 *oldlenp = len; 547 if (oldp) 548 error = copyout(sp, oldp, len); 549 return (error); 550 } 551 552 /* 553 * Get file structures. 554 */ 555 int 556 sysctl_file(where, sizep) 557 char *where; 558 size_t *sizep; 559 { 560 int buflen, error; 561 struct file *fp; 562 char *start = where; 563 564 buflen = *sizep; 565 if (where == NULL) { 566 /* 567 * overestimate by 10 files 568 */ 569 *sizep = sizeof(filehead) + (nfiles + 10) * sizeof(struct file); 570 return (0); 571 } 572 573 /* 574 * first copyout filehead 575 */ 576 if (buflen < sizeof(filehead)) { 577 *sizep = 0; 578 return (0); 579 } 580 error = copyout((caddr_t)&filehead, where, sizeof(filehead)); 581 if (error) 582 return (error); 583 buflen -= sizeof(filehead); 584 where += sizeof(filehead); 585 586 /* 587 * followed by an array of file structures 588 */ 589 for (fp = filehead.lh_first; fp != 0; fp = fp->f_list.le_next) { 590 if (buflen < sizeof(struct file)) { 591 *sizep = where - start; 592 return (ENOMEM); 593 } 594 error = copyout((caddr_t)fp, where, sizeof (struct file)); 595 if (error) 596 return (error); 597 buflen -= sizeof(struct file); 598 where += sizeof(struct file); 599 } 600 *sizep = where - start; 601 return (0); 602 } 603 604 /* 605 * try over estimating by 5 procs 606 */ 607 #define KERN_PROCSLOP (5 * sizeof (struct kinfo_proc)) 608 609 int 610 sysctl_doproc(name, namelen, where, sizep) 611 int *name; 612 u_int namelen; 613 char *where; 614 size_t *sizep; 615 { 616 register struct proc *p; 617 register struct kinfo_proc *dp = (struct kinfo_proc *)where; 618 register int needed = 0; 619 int buflen = where != NULL ? *sizep : 0; 620 int doingzomb; 621 struct eproc eproc; 622 int error = 0; 623 624 if (namelen != 2 && !(namelen == 1 && name[0] == KERN_PROC_ALL)) 625 return (EINVAL); 626 p = allproc.lh_first; 627 doingzomb = 0; 628 again: 629 for (; p != 0; p = p->p_list.le_next) { 630 /* 631 * Skip embryonic processes. 632 */ 633 if (p->p_stat == SIDL) 634 continue; 635 /* 636 * TODO - make more efficient (see notes below). 637 * do by session. 638 */ 639 switch (name[0]) { 640 641 case KERN_PROC_PID: 642 /* could do this with just a lookup */ 643 if (p->p_pid != (pid_t)name[1]) 644 continue; 645 break; 646 647 case KERN_PROC_PGRP: 648 /* could do this by traversing pgrp */ 649 if (p->p_pgrp->pg_id != (pid_t)name[1]) 650 continue; 651 break; 652 653 case KERN_PROC_TTY: 654 if ((p->p_flag & P_CONTROLT) == 0 || 655 p->p_session->s_ttyp == NULL || 656 p->p_session->s_ttyp->t_dev != (dev_t)name[1]) 657 continue; 658 break; 659 660 case KERN_PROC_UID: 661 if (p->p_ucred->cr_uid != (uid_t)name[1]) 662 continue; 663 break; 664 665 case KERN_PROC_RUID: 666 if (p->p_cred->p_ruid != (uid_t)name[1]) 667 continue; 668 break; 669 } 670 if (buflen >= sizeof(struct kinfo_proc)) { 671 fill_eproc(p, &eproc); 672 error = copyout((caddr_t)p, &dp->kp_proc, 673 sizeof(struct proc)); 674 if (error) 675 return (error); 676 error = copyout((caddr_t)&eproc, &dp->kp_eproc, 677 sizeof(eproc)); 678 if (error) 679 return (error); 680 dp++; 681 buflen -= sizeof(struct kinfo_proc); 682 } 683 needed += sizeof(struct kinfo_proc); 684 } 685 if (doingzomb == 0) { 686 p = zombproc.lh_first; 687 doingzomb++; 688 goto again; 689 } 690 if (where != NULL) { 691 *sizep = (caddr_t)dp - where; 692 if (needed > *sizep) 693 return (ENOMEM); 694 } else { 695 needed += KERN_PROCSLOP; 696 *sizep = needed; 697 } 698 return (0); 699 } 700 701 /* 702 * Fill in an eproc structure for the specified process. 703 */ 704 void 705 fill_eproc(p, ep) 706 register struct proc *p; 707 register struct eproc *ep; 708 { 709 register struct tty *tp; 710 711 ep->e_paddr = p; 712 ep->e_sess = p->p_pgrp->pg_session; 713 ep->e_pcred = *p->p_cred; 714 ep->e_ucred = *p->p_ucred; 715 if (p->p_stat == SIDL || p->p_stat == SZOMB) { 716 ep->e_vm.vm_rssize = 0; 717 ep->e_vm.vm_tsize = 0; 718 ep->e_vm.vm_dsize = 0; 719 ep->e_vm.vm_ssize = 0; 720 /* ep->e_vm.vm_pmap = XXX; */ 721 } else { 722 register struct vmspace *vm = p->p_vmspace; 723 724 #ifdef pmap_resident_count 725 ep->e_vm.vm_rssize = pmap_resident_count(&vm->vm_pmap); /*XXX*/ 726 #else 727 ep->e_vm.vm_rssize = vm->vm_rssize; 728 #endif 729 ep->e_vm.vm_tsize = vm->vm_tsize; 730 ep->e_vm.vm_dsize = vm->vm_dsize; 731 ep->e_vm.vm_ssize = vm->vm_ssize; 732 ep->e_vm.vm_pmap = vm->vm_pmap; 733 } 734 if (p->p_pptr) 735 ep->e_ppid = p->p_pptr->p_pid; 736 else 737 ep->e_ppid = 0; 738 ep->e_pgid = p->p_pgrp->pg_id; 739 ep->e_jobc = p->p_pgrp->pg_jobc; 740 if ((p->p_flag & P_CONTROLT) && 741 (tp = ep->e_sess->s_ttyp)) { 742 ep->e_tdev = tp->t_dev; 743 ep->e_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PID; 744 ep->e_tsess = tp->t_session; 745 } else 746 ep->e_tdev = NODEV; 747 ep->e_flag = ep->e_sess->s_ttyvp ? EPROC_CTTY : 0; 748 if (SESS_LEADER(p)) 749 ep->e_flag |= EPROC_SLEADER; 750 if (p->p_wmesg) 751 strncpy(ep->e_wmesg, p->p_wmesg, WMESGLEN); 752 ep->e_xsize = ep->e_xrssize = 0; 753 ep->e_xccount = ep->e_xswrss = 0; 754 } 755 756
Indexes created Tue Sep 30 11:09:46 GMT 2025