kern_sysctl.c revision 1.21
1 /* $NetBSD: kern_sysctl.c,v 1.21 1997/01/15 01:37:52 perry 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 <vm/vm.h> 58 #include <sys/sysctl.h> 59 60 #include <sys/mount.h> 61 #include <sys/syscallargs.h> 62 63 /* 64 * Locking and stats 65 */ 66 static struct sysctl_lock { 67 int sl_lock; 68 int sl_want; 69 int sl_locked; 70 } memlock; 71 72 int 73 sys___sysctl(p, v, retval) 74 struct proc *p; 75 void *v; 76 register_t *retval; 77 { 78 register struct sys___sysctl_args /* { 79 syscallarg(int *) name; 80 syscallarg(u_int) namelen; 81 syscallarg(void *) old; 82 syscallarg(size_t *) oldlenp; 83 syscallarg(void *) new; 84 syscallarg(size_t) newlen; 85 } */ *uap = v; 86 int error, dolock = 1; 87 size_t savelen = 0, oldlen = 0; 88 sysctlfn *fn; 89 int name[CTL_MAXNAME]; 90 91 if (SCARG(uap, new) != NULL && 92 (error = suser(p->p_ucred, &p->p_acflag))) 93 return (error); 94 /* 95 * all top-level sysctl names are non-terminal 96 */ 97 if (SCARG(uap, namelen) > CTL_MAXNAME || SCARG(uap, namelen) < 2) 98 return (EINVAL); 99 error = copyin(SCARG(uap, name), &name, 100 SCARG(uap, namelen) * sizeof(int)); 101 if (error) 102 return (error); 103 104 switch (name[0]) { 105 case CTL_KERN: 106 fn = kern_sysctl; 107 if (name[2] != KERN_VNODE) /* XXX */ 108 dolock = 0; 109 break; 110 case CTL_HW: 111 fn = hw_sysctl; 112 break; 113 case CTL_VM: 114 fn = vm_sysctl; 115 break; 116 case CTL_NET: 117 fn = net_sysctl; 118 break; 119 #ifdef notyet 120 case CTL_FS: 121 fn = fs_sysctl; 122 break; 123 #endif 124 case CTL_MACHDEP: 125 fn = cpu_sysctl; 126 break; 127 #ifdef DEBUG 128 case CTL_DEBUG: 129 fn = debug_sysctl; 130 break; 131 #endif 132 #ifdef DDB 133 case CTL_DDB: 134 fn = ddb_sysctl; 135 break; 136 #endif 137 default: 138 return (EOPNOTSUPP); 139 } 140 141 if (SCARG(uap, oldlenp) && 142 (error = copyin(SCARG(uap, oldlenp), &oldlen, sizeof(oldlen)))) 143 return (error); 144 if (SCARG(uap, old) != NULL) { 145 if (!useracc(SCARG(uap, old), oldlen, B_WRITE)) 146 return (EFAULT); 147 while (memlock.sl_lock) { 148 memlock.sl_want = 1; 149 sleep((caddr_t)&memlock, PRIBIO+1); 150 memlock.sl_locked++; 151 } 152 memlock.sl_lock = 1; 153 if (dolock) 154 vslock(SCARG(uap, old), oldlen); 155 savelen = oldlen; 156 } 157 error = (*fn)(name + 1, SCARG(uap, namelen) - 1, SCARG(uap, old), 158 &oldlen, SCARG(uap, new), SCARG(uap, newlen), p); 159 if (SCARG(uap, old) != NULL) { 160 if (dolock) 161 vsunlock(SCARG(uap, old), savelen); 162 memlock.sl_lock = 0; 163 if (memlock.sl_want) { 164 memlock.sl_want = 0; 165 wakeup((caddr_t)&memlock); 166 } 167 } 168 if (error) 169 return (error); 170 if (SCARG(uap, oldlenp)) 171 error = copyout(&oldlen, SCARG(uap, oldlenp), sizeof(oldlen)); 172 return (error); 173 } 174 175 /* 176 * Attributes stored in the kernel. 177 */ 178 char hostname[MAXHOSTNAMELEN]; 179 int hostnamelen; 180 char domainname[MAXHOSTNAMELEN]; 181 int domainnamelen; 182 long hostid; 183 #ifdef INSECURE 184 int securelevel = -1; 185 #else 186 int securelevel = 0; 187 #endif 188 189 /* 190 * kernel related system variables. 191 */ 192 int 193 kern_sysctl(name, namelen, oldp, oldlenp, newp, newlen, p) 194 int *name; 195 u_int namelen; 196 void *oldp; 197 size_t *oldlenp; 198 void *newp; 199 size_t newlen; 200 struct proc *p; 201 { 202 int error, level, inthostid; 203 int old_autonicetime; 204 extern char ostype[], osrelease[], version[]; 205 206 /* all sysctl names at this level are terminal */ 207 if (namelen != 1 && !(name[0] == KERN_PROC || name[0] == KERN_PROF)) 208 return (ENOTDIR); /* overloaded */ 209 210 switch (name[0]) { 211 case KERN_OSTYPE: 212 return (sysctl_rdstring(oldp, oldlenp, newp, ostype)); 213 case KERN_OSRELEASE: 214 return (sysctl_rdstring(oldp, oldlenp, newp, osrelease)); 215 case KERN_OSREV: 216 return (sysctl_rdint(oldp, oldlenp, newp, BSD)); 217 case KERN_VERSION: 218 return (sysctl_rdstring(oldp, oldlenp, newp, version)); 219 case KERN_MAXVNODES: 220 return(sysctl_int(oldp, oldlenp, newp, newlen, &desiredvnodes)); 221 case KERN_MAXPROC: 222 return (sysctl_int(oldp, oldlenp, newp, newlen, &maxproc)); 223 case KERN_MAXFILES: 224 return (sysctl_int(oldp, oldlenp, newp, newlen, &maxfiles)); 225 case KERN_ARGMAX: 226 return (sysctl_rdint(oldp, oldlenp, newp, ARG_MAX)); 227 case KERN_SECURELVL: 228 level = securelevel; 229 if ((error = sysctl_int(oldp, oldlenp, newp, newlen, &level)) || 230 newp == NULL) 231 return (error); 232 if (level < securelevel && p->p_pid != 1) 233 return (EPERM); 234 securelevel = level; 235 return (0); 236 case KERN_HOSTNAME: 237 error = sysctl_string(oldp, oldlenp, newp, newlen, 238 hostname, sizeof(hostname)); 239 if (newp && !error) 240 hostnamelen = newlen; 241 return (error); 242 case KERN_DOMAINNAME: 243 error = sysctl_string(oldp, oldlenp, newp, newlen, 244 domainname, sizeof(domainname)); 245 if (newp && !error) 246 domainnamelen = newlen; 247 return (error); 248 case KERN_HOSTID: 249 inthostid = hostid; /* XXX assumes sizeof long <= sizeof int */ 250 error = sysctl_int(oldp, oldlenp, newp, newlen, &inthostid); 251 hostid = inthostid; 252 return (error); 253 case KERN_CLOCKRATE: 254 return (sysctl_clockrate(oldp, oldlenp)); 255 case KERN_BOOTTIME: 256 return (sysctl_rdstruct(oldp, oldlenp, newp, &boottime, 257 sizeof(struct timeval))); 258 case KERN_VNODE: 259 return (sysctl_vnode(oldp, oldlenp)); 260 case KERN_PROC: 261 return (sysctl_doproc(name + 1, namelen - 1, oldp, oldlenp)); 262 case KERN_FILE: 263 return (sysctl_file(oldp, oldlenp)); 264 #ifdef GPROF 265 case KERN_PROF: 266 return (sysctl_doprof(name + 1, namelen - 1, oldp, oldlenp, 267 newp, newlen)); 268 #endif 269 case KERN_POSIX1: 270 return (sysctl_rdint(oldp, oldlenp, newp, _POSIX_VERSION)); 271 case KERN_NGROUPS: 272 return (sysctl_rdint(oldp, oldlenp, newp, NGROUPS_MAX)); 273 case KERN_JOB_CONTROL: 274 return (sysctl_rdint(oldp, oldlenp, newp, 1)); 275 case KERN_SAVED_IDS: 276 #ifdef _POSIX_SAVED_IDS 277 return (sysctl_rdint(oldp, oldlenp, newp, 1)); 278 #else 279 return (sysctl_rdint(oldp, oldlenp, newp, 0)); 280 #endif 281 case KERN_MAXPARTITIONS: 282 return (sysctl_rdint(oldp, oldlenp, newp, MAXPARTITIONS)); 283 case KERN_RAWPARTITION: 284 return (sysctl_rdint(oldp, oldlenp, newp, RAW_PART)); 285 #ifdef NTP 286 case KERN_NTPTIME: 287 return (sysctl_ntptime(oldp, oldlenp)); 288 #endif 289 case KERN_AUTONICETIME: 290 old_autonicetime = autonicetime; 291 error = sysctl_int(oldp, oldlenp, newp, newlen, &autonicetime); 292 if (autonicetime < 0) 293 autonicetime = old_autonicetime; 294 return (error); 295 case KERN_AUTONICEVAL: 296 error = sysctl_int(oldp, oldlenp, newp, newlen, &autoniceval); 297 if (autoniceval < PRIO_MIN) 298 autoniceval = PRIO_MIN; 299 if (autoniceval > PRIO_MAX) 300 autoniceval = PRIO_MAX; 301 return (error); 302 case KERN_RTC_OFFSET: 303 return (sysctl_rdint(oldp, oldlenp, newp, rtc_offset)); 304 default: 305 return (EOPNOTSUPP); 306 } 307 /* NOTREACHED */ 308 } 309 310 /* 311 * hardware related system variables. 312 */ 313 int 314 hw_sysctl(name, namelen, oldp, oldlenp, newp, newlen, p) 315 int *name; 316 u_int namelen; 317 void *oldp; 318 size_t *oldlenp; 319 void *newp; 320 size_t newlen; 321 struct proc *p; 322 { 323 extern char machine[], cpu_model[]; 324 325 /* all sysctl names at this level are terminal */ 326 if (namelen != 1) 327 return (ENOTDIR); /* overloaded */ 328 329 switch (name[0]) { 330 case HW_MACHINE: 331 return (sysctl_rdstring(oldp, oldlenp, newp, machine)); 332 case HW_MODEL: 333 return (sysctl_rdstring(oldp, oldlenp, newp, cpu_model)); 334 case HW_NCPU: 335 return (sysctl_rdint(oldp, oldlenp, newp, 1)); /* XXX */ 336 case HW_BYTEORDER: 337 return (sysctl_rdint(oldp, oldlenp, newp, BYTE_ORDER)); 338 case HW_PHYSMEM: 339 return (sysctl_rdint(oldp, oldlenp, newp, ctob(physmem))); 340 case HW_USERMEM: 341 return (sysctl_rdint(oldp, oldlenp, newp, 342 ctob(physmem - cnt.v_wire_count))); 343 case HW_PAGESIZE: 344 return (sysctl_rdint(oldp, oldlenp, newp, PAGE_SIZE)); 345 default: 346 return (EOPNOTSUPP); 347 } 348 /* NOTREACHED */ 349 } 350 351 #ifdef DEBUG 352 /* 353 * Debugging related system variables. 354 */ 355 struct ctldebug debug0, debug1, debug2, debug3, debug4; 356 struct ctldebug debug5, debug6, debug7, debug8, debug9; 357 struct ctldebug debug10, debug11, debug12, debug13, debug14; 358 struct ctldebug debug15, debug16, debug17, debug18, debug19; 359 static struct ctldebug *debugvars[CTL_DEBUG_MAXID] = { 360 &debug0, &debug1, &debug2, &debug3, &debug4, 361 &debug5, &debug6, &debug7, &debug8, &debug9, 362 &debug10, &debug11, &debug12, &debug13, &debug14, 363 &debug15, &debug16, &debug17, &debug18, &debug19, 364 }; 365 int 366 debug_sysctl(name, namelen, oldp, oldlenp, newp, newlen, p) 367 int *name; 368 u_int namelen; 369 void *oldp; 370 size_t *oldlenp; 371 void *newp; 372 size_t newlen; 373 struct proc *p; 374 { 375 struct ctldebug *cdp; 376 377 /* all sysctl names at this level are name and field */ 378 if (namelen != 2) 379 return (ENOTDIR); /* overloaded */ 380 cdp = debugvars[name[0]]; 381 if (cdp->debugname == 0) 382 return (EOPNOTSUPP); 383 switch (name[1]) { 384 case CTL_DEBUG_NAME: 385 return (sysctl_rdstring(oldp, oldlenp, newp, cdp->debugname)); 386 case CTL_DEBUG_VALUE: 387 return (sysctl_int(oldp, oldlenp, newp, newlen, cdp->debugvar)); 388 default: 389 return (EOPNOTSUPP); 390 } 391 /* NOTREACHED */ 392 } 393 #endif /* DEBUG */ 394 395 /* 396 * Validate parameters and get old / set new parameters 397 * for an integer-valued sysctl function. 398 */ 399 int 400 sysctl_int(oldp, oldlenp, newp, newlen, valp) 401 void *oldp; 402 size_t *oldlenp; 403 void *newp; 404 size_t newlen; 405 int *valp; 406 { 407 int error = 0; 408 409 if (oldp && *oldlenp < sizeof(int)) 410 return (ENOMEM); 411 if (newp && newlen != sizeof(int)) 412 return (EINVAL); 413 *oldlenp = sizeof(int); 414 if (oldp) 415 error = copyout(valp, oldp, sizeof(int)); 416 if (error == 0 && newp) 417 error = copyin(newp, valp, sizeof(int)); 418 return (error); 419 } 420 421 /* 422 * As above, but read-only. 423 */ 424 int 425 sysctl_rdint(oldp, oldlenp, newp, val) 426 void *oldp; 427 size_t *oldlenp; 428 void *newp; 429 int val; 430 { 431 int error = 0; 432 433 if (oldp && *oldlenp < sizeof(int)) 434 return (ENOMEM); 435 if (newp) 436 return (EPERM); 437 *oldlenp = sizeof(int); 438 if (oldp) 439 error = copyout((caddr_t)&val, oldp, sizeof(int)); 440 return (error); 441 } 442 443 /* 444 * Validate parameters and get old / set new parameters 445 * for a string-valued sysctl function. 446 */ 447 int 448 sysctl_string(oldp, oldlenp, newp, newlen, str, maxlen) 449 void *oldp; 450 size_t *oldlenp; 451 void *newp; 452 size_t newlen; 453 char *str; 454 int maxlen; 455 { 456 int len, error = 0; 457 458 len = strlen(str) + 1; 459 if (oldp && *oldlenp < len) 460 return (ENOMEM); 461 if (newp && newlen >= maxlen) 462 return (EINVAL); 463 if (oldp) { 464 *oldlenp = len; 465 error = copyout(str, oldp, len); 466 } 467 if (error == 0 && newp) { 468 error = copyin(newp, str, newlen); 469 str[newlen] = 0; 470 } 471 return (error); 472 } 473 474 /* 475 * As above, but read-only. 476 */ 477 int 478 sysctl_rdstring(oldp, oldlenp, newp, str) 479 void *oldp; 480 size_t *oldlenp; 481 void *newp; 482 char *str; 483 { 484 int len, error = 0; 485 486 len = strlen(str) + 1; 487 if (oldp && *oldlenp < len) 488 return (ENOMEM); 489 if (newp) 490 return (EPERM); 491 *oldlenp = len; 492 if (oldp) 493 error = copyout(str, oldp, len); 494 return (error); 495 } 496 497 /* 498 * Validate parameters and get old / set new parameters 499 * for a structure oriented sysctl function. 500 */ 501 int 502 sysctl_struct(oldp, oldlenp, newp, newlen, sp, len) 503 void *oldp; 504 size_t *oldlenp; 505 void *newp; 506 size_t newlen; 507 void *sp; 508 int len; 509 { 510 int error = 0; 511 512 if (oldp && *oldlenp < len) 513 return (ENOMEM); 514 if (newp && newlen > len) 515 return (EINVAL); 516 if (oldp) { 517 *oldlenp = len; 518 error = copyout(sp, oldp, len); 519 } 520 if (error == 0 && newp) 521 error = copyin(newp, sp, len); 522 return (error); 523 } 524 525 /* 526 * Validate parameters and get old parameters 527 * for a structure oriented sysctl function. 528 */ 529 int 530 sysctl_rdstruct(oldp, oldlenp, newp, sp, len) 531 void *oldp; 532 size_t *oldlenp; 533 void *newp, *sp; 534 int len; 535 { 536 int error = 0; 537 538 if (oldp && *oldlenp < len) 539 return (ENOMEM); 540 if (newp) 541 return (EPERM); 542 *oldlenp = len; 543 if (oldp) 544 error = copyout(sp, oldp, len); 545 return (error); 546 } 547 548 /* 549 * Get file structures. 550 */ 551 int 552 sysctl_file(where, sizep) 553 char *where; 554 size_t *sizep; 555 { 556 int buflen, error; 557 struct file *fp; 558 char *start = where; 559 560 buflen = *sizep; 561 if (where == NULL) { 562 /* 563 * overestimate by 10 files 564 */ 565 *sizep = sizeof(filehead) + (nfiles + 10) * sizeof(struct file); 566 return (0); 567 } 568 569 /* 570 * first copyout filehead 571 */ 572 if (buflen < sizeof(filehead)) { 573 *sizep = 0; 574 return (0); 575 } 576 error = copyout((caddr_t)&filehead, where, sizeof(filehead)); 577 if (error) 578 return (error); 579 buflen -= sizeof(filehead); 580 where += sizeof(filehead); 581 582 /* 583 * followed by an array of file structures 584 */ 585 for (fp = filehead.lh_first; fp != 0; fp = fp->f_list.le_next) { 586 if (buflen < sizeof(struct file)) { 587 *sizep = where - start; 588 return (ENOMEM); 589 } 590 error = copyout((caddr_t)fp, where, sizeof (struct file)); 591 if (error) 592 return (error); 593 buflen -= sizeof(struct file); 594 where += sizeof(struct file); 595 } 596 *sizep = where - start; 597 return (0); 598 } 599 600 /* 601 * try over estimating by 5 procs 602 */ 603 #define KERN_PROCSLOP (5 * sizeof (struct kinfo_proc)) 604 605 int 606 sysctl_doproc(name, namelen, where, sizep) 607 int *name; 608 u_int namelen; 609 char *where; 610 size_t *sizep; 611 { 612 register struct proc *p; 613 register struct kinfo_proc *dp = (struct kinfo_proc *)where; 614 register int needed = 0; 615 int buflen = where != NULL ? *sizep : 0; 616 int doingzomb; 617 struct eproc eproc; 618 int error = 0; 619 620 if (namelen != 2 && !(namelen == 1 && name[0] == KERN_PROC_ALL)) 621 return (EINVAL); 622 p = allproc.lh_first; 623 doingzomb = 0; 624 again: 625 for (; p != 0; p = p->p_list.le_next) { 626 /* 627 * Skip embryonic processes. 628 */ 629 if (p->p_stat == SIDL) 630 continue; 631 /* 632 * TODO - make more efficient (see notes below). 633 * do by session. 634 */ 635 switch (name[0]) { 636 637 case KERN_PROC_PID: 638 /* could do this with just a lookup */ 639 if (p->p_pid != (pid_t)name[1]) 640 continue; 641 break; 642 643 case KERN_PROC_PGRP: 644 /* could do this by traversing pgrp */ 645 if (p->p_pgrp->pg_id != (pid_t)name[1]) 646 continue; 647 break; 648 649 case KERN_PROC_TTY: 650 if ((p->p_flag & P_CONTROLT) == 0 || 651 p->p_session->s_ttyp == NULL || 652 p->p_session->s_ttyp->t_dev != (dev_t)name[1]) 653 continue; 654 break; 655 656 case KERN_PROC_UID: 657 if (p->p_ucred->cr_uid != (uid_t)name[1]) 658 continue; 659 break; 660 661 case KERN_PROC_RUID: 662 if (p->p_cred->p_ruid != (uid_t)name[1]) 663 continue; 664 break; 665 } 666 if (buflen >= sizeof(struct kinfo_proc)) { 667 fill_eproc(p, &eproc); 668 error = copyout((caddr_t)p, &dp->kp_proc, 669 sizeof(struct proc)); 670 if (error) 671 return (error); 672 error = copyout((caddr_t)&eproc, &dp->kp_eproc, 673 sizeof(eproc)); 674 if (error) 675 return (error); 676 dp++; 677 buflen -= sizeof(struct kinfo_proc); 678 } 679 needed += sizeof(struct kinfo_proc); 680 } 681 if (doingzomb == 0) { 682 p = zombproc.lh_first; 683 doingzomb++; 684 goto again; 685 } 686 if (where != NULL) { 687 *sizep = (caddr_t)dp - where; 688 if (needed > *sizep) 689 return (ENOMEM); 690 } else { 691 needed += KERN_PROCSLOP; 692 *sizep = needed; 693 } 694 return (0); 695 } 696 697 /* 698 * Fill in an eproc structure for the specified process. 699 */ 700 void 701 fill_eproc(p, ep) 702 register struct proc *p; 703 register struct eproc *ep; 704 { 705 register struct tty *tp; 706 707 ep->e_paddr = p; 708 ep->e_sess = p->p_pgrp->pg_session; 709 ep->e_pcred = *p->p_cred; 710 ep->e_ucred = *p->p_ucred; 711 if (p->p_stat == SIDL || p->p_stat == SZOMB) { 712 ep->e_vm.vm_rssize = 0; 713 ep->e_vm.vm_tsize = 0; 714 ep->e_vm.vm_dsize = 0; 715 ep->e_vm.vm_ssize = 0; 716 /* ep->e_vm.vm_pmap = XXX; */ 717 } else { 718 register struct vmspace *vm = p->p_vmspace; 719 720 #ifdef pmap_resident_count 721 ep->e_vm.vm_rssize = pmap_resident_count(&vm->vm_pmap); /*XXX*/ 722 #else 723 ep->e_vm.vm_rssize = vm->vm_rssize; 724 #endif 725 ep->e_vm.vm_tsize = vm->vm_tsize; 726 ep->e_vm.vm_dsize = vm->vm_dsize; 727 ep->e_vm.vm_ssize = vm->vm_ssize; 728 ep->e_vm.vm_pmap = vm->vm_pmap; 729 } 730 if (p->p_pptr) 731 ep->e_ppid = p->p_pptr->p_pid; 732 else 733 ep->e_ppid = 0; 734 ep->e_pgid = p->p_pgrp->pg_id; 735 ep->e_jobc = p->p_pgrp->pg_jobc; 736 if ((p->p_flag & P_CONTROLT) && 737 (tp = ep->e_sess->s_ttyp)) { 738 ep->e_tdev = tp->t_dev; 739 ep->e_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PID; 740 ep->e_tsess = tp->t_session; 741 } else 742 ep->e_tdev = NODEV; 743 ep->e_flag = ep->e_sess->s_ttyvp ? EPROC_CTTY : 0; 744 if (SESS_LEADER(p)) 745 ep->e_flag |= EPROC_SLEADER; 746 if (p->p_wmesg) 747 strncpy(ep->e_wmesg, p->p_wmesg, WMESGLEN); 748 ep->e_xsize = ep->e_xrssize = 0; 749 ep->e_xccount = ep->e_xswrss = 0; 750 } 751 752
Indexes created Tue Sep 30 07:10:03 GMT 2025