kern_sysctl.c revision 1.86.2.10
1 /* $NetBSD: kern_sysctl.c,v 1.86.2.10 2001/11/14 19:16:38 nathanw 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 8.9 (Berkeley) 5/20/95 39 */ 40 41 /* 42 * sysctl system call. 43 */ 44 45 #include <sys/cdefs.h> 46 __KERNEL_RCSID(0, "$NetBSD: kern_sysctl.c,v 1.86.2.10 2001/11/14 19:16:38 nathanw Exp $"); 47 48 #include "opt_ddb.h" 49 #include "opt_insecure.h" 50 #include "opt_defcorename.h" 51 #include "opt_new_pipe.h" 52 #include "opt_sysv.h" 53 #include "pty.h" 54 55 #include <sys/param.h> 56 #include <sys/systm.h> 57 #include <sys/kernel.h> 58 #include <sys/buf.h> 59 #include <sys/device.h> 60 #include <sys/disklabel.h> 61 #include <sys/dkstat.h> 62 #include <sys/exec.h> 63 #include <sys/file.h> 64 #include <sys/ioctl.h> 65 #include <sys/malloc.h> 66 #include <sys/mount.h> 67 #include <sys/msgbuf.h> 68 #include <sys/pool.h> 69 #include <sys/lwp.h> 70 #include <sys/proc.h> 71 #include <sys/resource.h> 72 #include <sys/resourcevar.h> 73 #include <sys/syscallargs.h> 74 #include <sys/tty.h> 75 #include <sys/unistd.h> 76 #include <sys/vnode.h> 77 #include <sys/socketvar.h> 78 #define __SYSCTL_PRIVATE 79 #include <sys/sysctl.h> 80 #include <sys/lock.h> 81 #include <sys/namei.h> 82 83 #if defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) 84 #include <sys/ipc.h> 85 #endif 86 #ifdef SYSVMSG 87 #include <sys/msg.h> 88 #endif 89 #ifdef SYSVSEM 90 #include <sys/sem.h> 91 #endif 92 #ifdef SYSVSHM 93 #include <sys/shm.h> 94 #endif 95 96 #include <dev/cons.h> 97 98 #if defined(DDB) 99 #include <ddb/ddbvar.h> 100 #endif 101 102 #ifdef NEW_PIPE 103 #include <sys/pipe.h> 104 #endif 105 106 #define PTRTOINT64(foo) ((u_int64_t)(uintptr_t)(foo)) 107 108 static int sysctl_file(void *, size_t *); 109 #if defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) 110 static int sysctl_sysvipc(int *, u_int, void *, size_t *); 111 #endif 112 static int sysctl_msgbuf(void *, size_t *); 113 static int sysctl_doeproc(int *, u_int, void *, size_t *); 114 #ifdef MULTIPROCESSOR 115 static int sysctl_docptime(void *, size_t *, void *); 116 static int sysctl_ncpus(void); 117 #endif 118 static void fill_kproc2(struct proc *, struct kinfo_proc2 *); 119 static int sysctl_procargs(int *, u_int, void *, size_t *, struct proc *); 120 #if NPTY > 0 121 static int sysctl_pty(void *, size_t *, void *, size_t); 122 #endif 123 124 static struct lwp *proc_representative_lwp(struct proc *); 125 126 /* 127 * The `sysctl_memlock' is intended to keep too many processes from 128 * locking down memory by doing sysctls at once. Whether or not this 129 * is really a good idea to worry about it probably a subject of some 130 * debate. 131 */ 132 struct lock sysctl_memlock; 133 134 void 135 sysctl_init(void) 136 { 137 138 lockinit(&sysctl_memlock, PRIBIO|PCATCH, "sysctl", 0, 0); 139 } 140 141 int 142 sys___sysctl(struct lwp *l, void *v, register_t *retval) 143 { 144 struct sys___sysctl_args /* { 145 syscallarg(int *) name; 146 syscallarg(u_int) namelen; 147 syscallarg(void *) old; 148 syscallarg(size_t *) oldlenp; 149 syscallarg(void *) new; 150 syscallarg(size_t) newlen; 151 } */ *uap = v; 152 struct proc *p = l->l_proc; 153 int error; 154 size_t savelen = 0, oldlen = 0; 155 sysctlfn *fn; 156 int name[CTL_MAXNAME]; 157 size_t *oldlenp; 158 159 /* 160 * all top-level sysctl names are non-terminal 161 */ 162 if (SCARG(uap, namelen) > CTL_MAXNAME || SCARG(uap, namelen) < 2) 163 return (EINVAL); 164 error = copyin(SCARG(uap, name), &name, 165 SCARG(uap, namelen) * sizeof(int)); 166 if (error) 167 return (error); 168 169 /* 170 * For all but CTL_PROC, must be root to change a value. 171 * For CTL_PROC, must be root, or owner of the proc (and not suid), 172 * this is checked in proc_sysctl() (once we know the targer proc). 173 */ 174 if (SCARG(uap, new) != NULL && name[0] != CTL_PROC && 175 (error = suser(p->p_ucred, &p->p_acflag))) 176 return error; 177 178 switch (name[0]) { 179 case CTL_KERN: 180 fn = kern_sysctl; 181 break; 182 case CTL_HW: 183 fn = hw_sysctl; 184 break; 185 case CTL_VM: 186 fn = uvm_sysctl; 187 break; 188 case CTL_NET: 189 fn = net_sysctl; 190 break; 191 case CTL_VFS: 192 fn = vfs_sysctl; 193 break; 194 case CTL_MACHDEP: 195 fn = cpu_sysctl; 196 break; 197 #ifdef DEBUG 198 case CTL_DEBUG: 199 fn = debug_sysctl; 200 break; 201 #endif 202 #ifdef DDB 203 case CTL_DDB: 204 fn = ddb_sysctl; 205 break; 206 #endif 207 case CTL_PROC: 208 fn = proc_sysctl; 209 break; 210 default: 211 return (EOPNOTSUPP); 212 } 213 214 /* 215 * XXX Hey, we wire `old', but what about `new'? 216 */ 217 218 oldlenp = SCARG(uap, oldlenp); 219 if (oldlenp) { 220 if ((error = copyin(oldlenp, &oldlen, sizeof(oldlen)))) 221 return (error); 222 oldlenp = &oldlen; 223 } 224 if (SCARG(uap, old) != NULL) { 225 error = lockmgr(&sysctl_memlock, LK_EXCLUSIVE, NULL); 226 if (error) 227 return (error); 228 error = uvm_vslock(p, SCARG(uap, old), oldlen, 229 VM_PROT_READ|VM_PROT_WRITE); 230 if (error) { 231 (void) lockmgr(&sysctl_memlock, LK_RELEASE, NULL); 232 return error; 233 } 234 savelen = oldlen; 235 } 236 error = (*fn)(name + 1, SCARG(uap, namelen) - 1, SCARG(uap, old), 237 oldlenp, SCARG(uap, new), SCARG(uap, newlen), p); 238 if (SCARG(uap, old) != NULL) { 239 uvm_vsunlock(p, SCARG(uap, old), savelen); 240 (void) lockmgr(&sysctl_memlock, LK_RELEASE, NULL); 241 } 242 if (error) 243 return (error); 244 if (SCARG(uap, oldlenp)) 245 error = copyout(&oldlen, SCARG(uap, oldlenp), sizeof(oldlen)); 246 return (error); 247 } 248 249 /* 250 * Attributes stored in the kernel. 251 */ 252 char hostname[MAXHOSTNAMELEN]; 253 int hostnamelen; 254 255 char domainname[MAXHOSTNAMELEN]; 256 int domainnamelen; 257 258 long hostid; 259 260 #ifdef INSECURE 261 int securelevel = -1; 262 #else 263 int securelevel = 0; 264 #endif 265 266 #ifndef DEFCORENAME 267 #define DEFCORENAME "%n.core" 268 #endif 269 char defcorename[MAXPATHLEN] = DEFCORENAME; 270 int defcorenamelen = sizeof(DEFCORENAME); 271 272 extern int kern_logsigexit; 273 extern fixpt_t ccpu; 274 275 #ifndef MULTIPROCESSOR 276 #define sysctl_ncpus() 1 277 #endif 278 279 #ifdef MULTIPROCESSOR 280 281 #ifndef CPU_INFO_FOREACH 282 #define CPU_INFO_ITERATOR int 283 #define CPU_INFO_FOREACH(cii, ci) cii = 0, ci = curcpu(); ci != NULL; ci = NULL 284 #endif 285 286 static int 287 sysctl_docptime(void *oldp, size_t *oldlenp, void *newp) 288 { 289 u_int64_t cp_time[CPUSTATES]; 290 int i; 291 struct cpu_info *ci; 292 CPU_INFO_ITERATOR cii; 293 294 for (i=0; i<CPUSTATES; i++) 295 cp_time[i] = 0; 296 297 for (CPU_INFO_FOREACH(cii, ci)) { 298 for (i=0; i<CPUSTATES; i++) 299 cp_time[i] += ci->ci_schedstate.spc_cp_time[i]; 300 } 301 return (sysctl_rdstruct(oldp, oldlenp, newp, 302 cp_time, sizeof(cp_time))); 303 } 304 305 static int 306 sysctl_ncpus(void) 307 { 308 struct cpu_info *ci; 309 CPU_INFO_ITERATOR cii; 310 311 int ncpus = 0; 312 for (CPU_INFO_FOREACH(cii, ci)) 313 ncpus++; 314 return ncpus; 315 } 316 317 #endif 318 319 /* 320 * kernel related system variables. 321 */ 322 int 323 kern_sysctl(int *name, u_int namelen, void *oldp, size_t *oldlenp, 324 void *newp, size_t newlen, struct proc *p) 325 { 326 int error, level, inthostid; 327 int old_autonicetime; 328 int old_vnodes; 329 dev_t consdev; 330 331 /* All sysctl names at this level, except for a few, are terminal. */ 332 switch (name[0]) { 333 case KERN_PROC: 334 case KERN_PROC2: 335 case KERN_PROF: 336 case KERN_MBUF: 337 case KERN_PROC_ARGS: 338 case KERN_SYSVIPC_INFO: 339 case KERN_PIPE: 340 /* Not terminal. */ 341 break; 342 default: 343 if (namelen != 1) 344 return (ENOTDIR); /* overloaded */ 345 } 346 347 switch (name[0]) { 348 case KERN_OSTYPE: 349 return (sysctl_rdstring(oldp, oldlenp, newp, ostype)); 350 case KERN_OSRELEASE: 351 return (sysctl_rdstring(oldp, oldlenp, newp, osrelease)); 352 case KERN_OSREV: 353 return (sysctl_rdint(oldp, oldlenp, newp, __NetBSD_Version__)); 354 case KERN_VERSION: 355 return (sysctl_rdstring(oldp, oldlenp, newp, version)); 356 case KERN_MAXVNODES: 357 old_vnodes = desiredvnodes; 358 error = sysctl_int(oldp, oldlenp, newp, newlen, &desiredvnodes); 359 if (old_vnodes > desiredvnodes) { 360 desiredvnodes = old_vnodes; 361 return (EINVAL); 362 } 363 if (error == 0) { 364 vfs_reinit(); 365 nchreinit(); 366 } 367 return (error); 368 case KERN_MAXPROC: 369 return (sysctl_int(oldp, oldlenp, newp, newlen, &maxproc)); 370 case KERN_MAXFILES: 371 return (sysctl_int(oldp, oldlenp, newp, newlen, &maxfiles)); 372 case KERN_ARGMAX: 373 return (sysctl_rdint(oldp, oldlenp, newp, ARG_MAX)); 374 case KERN_SECURELVL: 375 level = securelevel; 376 if ((error = sysctl_int(oldp, oldlenp, newp, newlen, &level)) || 377 newp == NULL) 378 return (error); 379 if (level < securelevel && p->p_pid != 1) 380 return (EPERM); 381 securelevel = level; 382 return (0); 383 case KERN_HOSTNAME: 384 error = sysctl_string(oldp, oldlenp, newp, newlen, 385 hostname, sizeof(hostname)); 386 if (newp && !error) 387 hostnamelen = newlen; 388 return (error); 389 case KERN_DOMAINNAME: 390 error = sysctl_string(oldp, oldlenp, newp, newlen, 391 domainname, sizeof(domainname)); 392 if (newp && !error) 393 domainnamelen = newlen; 394 return (error); 395 case KERN_HOSTID: 396 inthostid = hostid; /* XXX assumes sizeof long <= sizeof int */ 397 error = sysctl_int(oldp, oldlenp, newp, newlen, &inthostid); 398 hostid = inthostid; 399 return (error); 400 case KERN_CLOCKRATE: 401 return (sysctl_clockrate(oldp, oldlenp)); 402 case KERN_BOOTTIME: 403 return (sysctl_rdstruct(oldp, oldlenp, newp, &boottime, 404 sizeof(struct timeval))); 405 case KERN_VNODE: 406 return (sysctl_vnode(oldp, oldlenp, p)); 407 case KERN_PROC: 408 case KERN_PROC2: 409 return (sysctl_doeproc(name, namelen, oldp, oldlenp)); 410 case KERN_PROC_ARGS: 411 return (sysctl_procargs(name + 1, namelen - 1, 412 oldp, oldlenp, p)); 413 case KERN_FILE: 414 return (sysctl_file(oldp, oldlenp)); 415 #ifdef GPROF 416 case KERN_PROF: 417 return (sysctl_doprof(name + 1, namelen - 1, oldp, oldlenp, 418 newp, newlen)); 419 #endif 420 case KERN_POSIX1: 421 return (sysctl_rdint(oldp, oldlenp, newp, _POSIX_VERSION)); 422 case KERN_NGROUPS: 423 return (sysctl_rdint(oldp, oldlenp, newp, NGROUPS_MAX)); 424 case KERN_JOB_CONTROL: 425 return (sysctl_rdint(oldp, oldlenp, newp, 1)); 426 case KERN_SAVED_IDS: 427 #ifdef _POSIX_SAVED_IDS 428 return (sysctl_rdint(oldp, oldlenp, newp, 1)); 429 #else 430 return (sysctl_rdint(oldp, oldlenp, newp, 0)); 431 #endif 432 case KERN_MAXPARTITIONS: 433 return (sysctl_rdint(oldp, oldlenp, newp, MAXPARTITIONS)); 434 case KERN_RAWPARTITION: 435 return (sysctl_rdint(oldp, oldlenp, newp, RAW_PART)); 436 #ifdef NTP 437 case KERN_NTPTIME: 438 return (sysctl_ntptime(oldp, oldlenp)); 439 #endif 440 case KERN_AUTONICETIME: 441 old_autonicetime = autonicetime; 442 error = sysctl_int(oldp, oldlenp, newp, newlen, &autonicetime); 443 if (autonicetime < 0) 444 autonicetime = old_autonicetime; 445 return (error); 446 case KERN_AUTONICEVAL: 447 error = sysctl_int(oldp, oldlenp, newp, newlen, &autoniceval); 448 if (autoniceval < PRIO_MIN) 449 autoniceval = PRIO_MIN; 450 if (autoniceval > PRIO_MAX) 451 autoniceval = PRIO_MAX; 452 return (error); 453 case KERN_RTC_OFFSET: 454 return (sysctl_rdint(oldp, oldlenp, newp, rtc_offset)); 455 case KERN_ROOT_DEVICE: 456 return (sysctl_rdstring(oldp, oldlenp, newp, 457 root_device->dv_xname)); 458 case KERN_MSGBUFSIZE: 459 /* 460 * deal with cases where the message buffer has 461 * become corrupted. 462 */ 463 if (!msgbufenabled || msgbufp->msg_magic != MSG_MAGIC) { 464 msgbufenabled = 0; 465 return (ENXIO); 466 } 467 return (sysctl_rdint(oldp, oldlenp, newp, msgbufp->msg_bufs)); 468 case KERN_FSYNC: 469 return (sysctl_rdint(oldp, oldlenp, newp, 1)); 470 case KERN_SYSVMSG: 471 #ifdef SYSVMSG 472 return (sysctl_rdint(oldp, oldlenp, newp, 1)); 473 #else 474 return (sysctl_rdint(oldp, oldlenp, newp, 0)); 475 #endif 476 case KERN_SYSVSEM: 477 #ifdef SYSVSEM 478 return (sysctl_rdint(oldp, oldlenp, newp, 1)); 479 #else 480 return (sysctl_rdint(oldp, oldlenp, newp, 0)); 481 #endif 482 case KERN_SYSVSHM: 483 #ifdef SYSVSHM 484 return (sysctl_rdint(oldp, oldlenp, newp, 1)); 485 #else 486 return (sysctl_rdint(oldp, oldlenp, newp, 0)); 487 #endif 488 case KERN_DEFCORENAME: 489 if (newp && newlen < 1) 490 return (EINVAL); 491 error = sysctl_string(oldp, oldlenp, newp, newlen, 492 defcorename, sizeof(defcorename)); 493 if (newp && !error) 494 defcorenamelen = newlen; 495 return (error); 496 case KERN_SYNCHRONIZED_IO: 497 return (sysctl_rdint(oldp, oldlenp, newp, 1)); 498 case KERN_IOV_MAX: 499 return (sysctl_rdint(oldp, oldlenp, newp, IOV_MAX)); 500 case KERN_MBUF: 501 return (sysctl_dombuf(name + 1, namelen - 1, oldp, oldlenp, 502 newp, newlen)); 503 case KERN_MAPPED_FILES: 504 return (sysctl_rdint(oldp, oldlenp, newp, 1)); 505 case KERN_MEMLOCK: 506 return (sysctl_rdint(oldp, oldlenp, newp, 1)); 507 case KERN_MEMLOCK_RANGE: 508 return (sysctl_rdint(oldp, oldlenp, newp, 1)); 509 case KERN_MEMORY_PROTECTION: 510 return (sysctl_rdint(oldp, oldlenp, newp, 1)); 511 case KERN_LOGIN_NAME_MAX: 512 return (sysctl_rdint(oldp, oldlenp, newp, LOGIN_NAME_MAX)); 513 case KERN_LOGSIGEXIT: 514 return (sysctl_int(oldp, oldlenp, newp, newlen, 515 &kern_logsigexit)); 516 case KERN_FSCALE: 517 return (sysctl_rdint(oldp, oldlenp, newp, FSCALE)); 518 case KERN_CCPU: 519 return (sysctl_rdint(oldp, oldlenp, newp, ccpu)); 520 case KERN_CP_TIME: 521 #ifndef MULTIPROCESSOR 522 return (sysctl_rdstruct(oldp, oldlenp, newp, 523 curcpu()->ci_schedstate.spc_cp_time, 524 sizeof(curcpu()->ci_schedstate.spc_cp_time))); 525 #else 526 return (sysctl_docptime(oldp, oldlenp, newp)); 527 #endif 528 #if defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) 529 case KERN_SYSVIPC_INFO: 530 return (sysctl_sysvipc(name + 1, namelen - 1, oldp, oldlenp)); 531 #endif 532 case KERN_MSGBUF: 533 return (sysctl_msgbuf(oldp, oldlenp)); 534 case KERN_CONSDEV: 535 if (cn_tab != NULL) 536 consdev = cn_tab->cn_dev; 537 else 538 consdev = NODEV; 539 return (sysctl_rdstruct(oldp, oldlenp, newp, &consdev, 540 sizeof consdev)); 541 #if NPTY > 0 542 case KERN_MAXPTYS: 543 return sysctl_pty(oldp, oldlenp, newp, newlen); 544 #endif 545 #ifdef NEW_PIPE 546 case KERN_PIPE: 547 return (sysctl_dopipe(name + 1, namelen - 1, oldp, oldlenp, 548 newp, newlen)); 549 #endif 550 case KERN_MAXPHYS: 551 return (sysctl_rdint(oldp, oldlenp, newp, MAXPHYS)); 552 case KERN_SBMAX: 553 { 554 int new_sbmax = sb_max; 555 556 error = sysctl_int(oldp, oldlenp, newp, newlen, &new_sbmax); 557 if (error == 0) { 558 if (new_sbmax < (16 * 1024)) /* sanity */ 559 return (EINVAL); 560 sb_max = new_sbmax; 561 } 562 return (error); 563 } 564 default: 565 return (EOPNOTSUPP); 566 } 567 /* NOTREACHED */ 568 } 569 570 /* 571 * hardware related system variables. 572 */ 573 int 574 hw_sysctl(int *name, u_int namelen, void *oldp, size_t *oldlenp, 575 void *newp, size_t newlen, struct proc *p) 576 { 577 578 /* all sysctl names at this level are terminal */ 579 if (namelen != 1) 580 return (ENOTDIR); /* overloaded */ 581 582 switch (name[0]) { 583 case HW_MACHINE: 584 return (sysctl_rdstring(oldp, oldlenp, newp, machine)); 585 case HW_MACHINE_ARCH: 586 return (sysctl_rdstring(oldp, oldlenp, newp, machine_arch)); 587 case HW_MODEL: 588 return (sysctl_rdstring(oldp, oldlenp, newp, cpu_model)); 589 case HW_NCPU: 590 return (sysctl_rdint(oldp, oldlenp, newp, sysctl_ncpus())); 591 case HW_BYTEORDER: 592 return (sysctl_rdint(oldp, oldlenp, newp, BYTE_ORDER)); 593 case HW_PHYSMEM: 594 return (sysctl_rdint(oldp, oldlenp, newp, ctob(physmem))); 595 case HW_USERMEM: 596 return (sysctl_rdint(oldp, oldlenp, newp, 597 ctob(physmem - uvmexp.wired))); 598 case HW_PAGESIZE: 599 return (sysctl_rdint(oldp, oldlenp, newp, PAGE_SIZE)); 600 case HW_ALIGNBYTES: 601 return (sysctl_rdint(oldp, oldlenp, newp, ALIGNBYTES)); 602 case HW_CNMAGIC: { 603 char magic[CNS_LEN]; 604 int error; 605 606 if (oldp) 607 cn_get_magic(magic, CNS_LEN); 608 error = sysctl_string(oldp, oldlenp, newp, newlen, 609 magic, sizeof(magic)); 610 if (newp && !error) { 611 error = cn_set_magic(magic); 612 } 613 return (error); 614 } 615 default: 616 return (EOPNOTSUPP); 617 } 618 /* NOTREACHED */ 619 } 620 621 #ifdef DEBUG 622 /* 623 * Debugging related system variables. 624 */ 625 struct ctldebug debug0, debug1, debug2, debug3, debug4; 626 struct ctldebug debug5, debug6, debug7, debug8, debug9; 627 struct ctldebug debug10, debug11, debug12, debug13, debug14; 628 struct ctldebug debug15, debug16, debug17, debug18, debug19; 629 static struct ctldebug *debugvars[CTL_DEBUG_MAXID] = { 630 &debug0, &debug1, &debug2, &debug3, &debug4, 631 &debug5, &debug6, &debug7, &debug8, &debug9, 632 &debug10, &debug11, &debug12, &debug13, &debug14, 633 &debug15, &debug16, &debug17, &debug18, &debug19, 634 }; 635 636 int 637 debug_sysctl(int *name, u_int namelen, void *oldp, size_t *oldlenp, 638 void *newp, size_t newlen, struct proc *p) 639 { 640 struct ctldebug *cdp; 641 642 /* all sysctl names at this level are name and field */ 643 if (namelen != 2) 644 return (ENOTDIR); /* overloaded */ 645 cdp = debugvars[name[0]]; 646 if (name[0] >= CTL_DEBUG_MAXID || cdp->debugname == 0) 647 return (EOPNOTSUPP); 648 switch (name[1]) { 649 case CTL_DEBUG_NAME: 650 return (sysctl_rdstring(oldp, oldlenp, newp, cdp->debugname)); 651 case CTL_DEBUG_VALUE: 652 return (sysctl_int(oldp, oldlenp, newp, newlen, cdp->debugvar)); 653 default: 654 return (EOPNOTSUPP); 655 } 656 /* NOTREACHED */ 657 } 658 #endif /* DEBUG */ 659 660 int 661 proc_sysctl(int *name, u_int namelen, void *oldp, size_t *oldlenp, 662 void *newp, size_t newlen, struct proc *p) 663 { 664 struct proc *ptmp = NULL; 665 const struct proclist_desc *pd; 666 int error = 0; 667 struct rlimit alim; 668 struct plimit *newplim; 669 char *tmps = NULL; 670 int i, curlen, len; 671 672 if (namelen < 2) 673 return EINVAL; 674 675 if (name[0] == PROC_CURPROC) { 676 ptmp = p; 677 } else { 678 proclist_lock_read(); 679 for (pd = proclists; pd->pd_list != NULL; pd++) { 680 for (ptmp = LIST_FIRST(pd->pd_list); ptmp != NULL; 681 ptmp = LIST_NEXT(ptmp, p_list)) { 682 /* Skip embryonic processes. */ 683 if (ptmp->p_stat == SIDL) 684 continue; 685 if (ptmp->p_pid == (pid_t)name[0]) 686 break; 687 } 688 if (ptmp != NULL) 689 break; 690 } 691 proclist_unlock_read(); 692 if (ptmp == NULL) 693 return(ESRCH); 694 if (p->p_ucred->cr_uid != 0) { 695 if(p->p_cred->p_ruid != ptmp->p_cred->p_ruid || 696 p->p_cred->p_ruid != ptmp->p_cred->p_svuid) 697 return EPERM; 698 if (ptmp->p_cred->p_rgid != ptmp->p_cred->p_svgid) 699 return EPERM; /* sgid proc */ 700 for (i = 0; i < p->p_ucred->cr_ngroups; i++) { 701 if (p->p_ucred->cr_groups[i] == 702 ptmp->p_cred->p_rgid) 703 break; 704 } 705 if (i == p->p_ucred->cr_ngroups) 706 return EPERM; 707 } 708 } 709 if (name[1] == PROC_PID_CORENAME) { 710 if (namelen != 2) 711 return EINVAL; 712 /* 713 * Can't use sysctl_string() here because we may malloc a new 714 * area during the process, so we have to do it by hand. 715 */ 716 curlen = strlen(ptmp->p_limit->pl_corename) + 1; 717 if (oldlenp && *oldlenp < curlen) { 718 if (!oldp) 719 *oldlenp = curlen; 720 return (ENOMEM); 721 } 722 if (newp) { 723 if (securelevel > 2) 724 return EPERM; 725 if (newlen > MAXPATHLEN) 726 return ENAMETOOLONG; 727 tmps = malloc(newlen + 1, M_TEMP, M_WAITOK); 728 if (tmps == NULL) 729 return ENOMEM; 730 error = copyin(newp, tmps, newlen + 1); 731 tmps[newlen] = '\0'; 732 if (error) 733 goto cleanup; 734 /* Enforce to be either 'core' for end with '.core' */ 735 if (newlen < 4) { /* c.o.r.e */ 736 error = EINVAL; 737 goto cleanup; 738 } 739 len = newlen - 4; 740 if (len > 0) { 741 if (tmps[len - 1] != '.' && 742 tmps[len - 1] != '/') { 743 error = EINVAL; 744 goto cleanup; 745 } 746 } 747 if (strcmp(&tmps[len], "core") != 0) { 748 error = EINVAL; 749 goto cleanup; 750 } 751 } 752 if (oldp && oldlenp) { 753 *oldlenp = curlen; 754 error = copyout(ptmp->p_limit->pl_corename, oldp, 755 curlen); 756 } 757 if (newp && error == 0) { 758 /* if the 2 strings are identical, don't limcopy() */ 759 if (strcmp(tmps, ptmp->p_limit->pl_corename) == 0) { 760 error = 0; 761 goto cleanup; 762 } 763 if (ptmp->p_limit->p_refcnt > 1 && 764 (ptmp->p_limit->p_lflags & PL_SHAREMOD) == 0) { 765 newplim = limcopy(ptmp->p_limit); 766 limfree(ptmp->p_limit); 767 ptmp->p_limit = newplim; 768 } 769 if (ptmp->p_limit->pl_corename != defcorename) { 770 free(ptmp->p_limit->pl_corename, M_TEMP); 771 } 772 ptmp->p_limit->pl_corename = tmps; 773 return (0); 774 } 775 cleanup: 776 if (tmps) 777 free(tmps, M_TEMP); 778 return (error); 779 } 780 if (name[1] == PROC_PID_LIMIT) { 781 if (namelen != 4 || name[2] >= PROC_PID_LIMIT_MAXID) 782 return EINVAL; 783 memcpy(&alim, &ptmp->p_rlimit[name[2] - 1], sizeof(alim)); 784 if (name[3] == PROC_PID_LIMIT_TYPE_HARD) 785 error = sysctl_quad(oldp, oldlenp, newp, newlen, 786 &alim.rlim_max); 787 else if (name[3] == PROC_PID_LIMIT_TYPE_SOFT) 788 error = sysctl_quad(oldp, oldlenp, newp, newlen, 789 &alim.rlim_cur); 790 else 791 error = EINVAL; 792 793 if (error) 794 return error; 795 796 if (newp) 797 error = dosetrlimit(ptmp, p->p_cred, 798 name[2] - 1, &alim); 799 return error; 800 } 801 return (EINVAL); 802 } 803 804 /* 805 * Convenience macros. 806 */ 807 808 #define SYSCTL_SCALAR_CORE_LEN(oldp, oldlenp, valp, len) \ 809 if (oldlenp) { \ 810 if (!oldp) \ 811 *oldlenp = len; \ 812 else { \ 813 if (*oldlenp < len) \ 814 return(ENOMEM); \ 815 *oldlenp = len; \ 816 error = copyout((caddr_t)valp, oldp, len); \ 817 } \ 818 } 819 820 #define SYSCTL_SCALAR_CORE_TYP(oldp, oldlenp, valp, typ) \ 821 SYSCTL_SCALAR_CORE_LEN(oldp, oldlenp, valp, sizeof(typ)) 822 823 #define SYSCTL_SCALAR_NEWPCHECK_LEN(newp, newlen, len) \ 824 if (newp && newlen != len) \ 825 return (EINVAL); 826 827 #define SYSCTL_SCALAR_NEWPCHECK_TYP(newp, newlen, typ) \ 828 SYSCTL_SCALAR_NEWPCHECK_LEN(newp, newlen, sizeof(typ)) 829 830 #define SYSCTL_SCALAR_NEWPCOP_LEN(newp, valp, len) \ 831 if (error == 0 && newp) \ 832 error = copyin(newp, valp, len); 833 834 #define SYSCTL_SCALAR_NEWPCOP_TYP(newp, valp, typ) \ 835 SYSCTL_SCALAR_NEWPCOP_LEN(newp, valp, sizeof(typ)) 836 837 #define SYSCTL_STRING_CORE(oldp, oldlenp, str) \ 838 if (oldlenp) { \ 839 len = strlen(str) + 1; \ 840 if (!oldp) \ 841 *oldlenp = len; \ 842 else { \ 843 if (*oldlenp < len) { \ 844 err2 = ENOMEM; \ 845 len = *oldlenp; \ 846 } else \ 847 *oldlenp = len; \ 848 error = copyout(str, oldp, len);\ 849 if (error == 0) \ 850 error = err2; \ 851 } \ 852 } 853 854 /* 855 * Validate parameters and get old / set new parameters 856 * for an integer-valued sysctl function. 857 */ 858 int 859 sysctl_int(void *oldp, size_t *oldlenp, void *newp, size_t newlen, int *valp) 860 { 861 int error = 0; 862 863 SYSCTL_SCALAR_NEWPCHECK_TYP(newp, newlen, int) 864 SYSCTL_SCALAR_CORE_TYP(oldp, oldlenp, valp, int) 865 SYSCTL_SCALAR_NEWPCOP_TYP(newp, valp, int) 866 867 return (error); 868 } 869 870 871 /* 872 * As above, but read-only. 873 */ 874 int 875 sysctl_rdint(void *oldp, size_t *oldlenp, void *newp, int val) 876 { 877 int error = 0; 878 879 if (newp) 880 return (EPERM); 881 882 SYSCTL_SCALAR_CORE_TYP(oldp, oldlenp, &val, int) 883 884 return (error); 885 } 886 887 /* 888 * Validate parameters and get old / set new parameters 889 * for an quad-valued sysctl function. 890 */ 891 int 892 sysctl_quad(void *oldp, size_t *oldlenp, void *newp, size_t newlen, 893 quad_t *valp) 894 { 895 int error = 0; 896 897 SYSCTL_SCALAR_NEWPCHECK_TYP(newp, newlen, quad_t) 898 SYSCTL_SCALAR_CORE_TYP(oldp, oldlenp, valp, quad_t) 899 SYSCTL_SCALAR_NEWPCOP_TYP(newp, valp, quad_t) 900 901 return (error); 902 } 903 904 /* 905 * As above, but read-only. 906 */ 907 int 908 sysctl_rdquad(void *oldp, size_t *oldlenp, void *newp, quad_t val) 909 { 910 int error = 0; 911 912 if (newp) 913 return (EPERM); 914 915 SYSCTL_SCALAR_CORE_TYP(oldp, oldlenp, &val, quad_t) 916 917 return (error); 918 } 919 920 /* 921 * Validate parameters and get old / set new parameters 922 * for a string-valued sysctl function. 923 */ 924 int 925 sysctl_string(void *oldp, size_t *oldlenp, void *newp, size_t newlen, char *str, 926 int maxlen) 927 { 928 int len, error = 0, err2 = 0; 929 930 if (newp && newlen >= maxlen) 931 return (EINVAL); 932 933 SYSCTL_STRING_CORE(oldp, oldlenp, str); 934 935 if (error == 0 && newp) { 936 error = copyin(newp, str, newlen); 937 str[newlen] = 0; 938 } 939 return (error); 940 } 941 942 /* 943 * As above, but read-only. 944 */ 945 int 946 sysctl_rdstring(void *oldp, size_t *oldlenp, void *newp, const char *str) 947 { 948 int len, error = 0, err2 = 0; 949 950 if (newp) 951 return (EPERM); 952 953 SYSCTL_STRING_CORE(oldp, oldlenp, str); 954 955 return (error); 956 } 957 958 /* 959 * Validate parameters and get old / set new parameters 960 * for a structure oriented sysctl function. 961 */ 962 int 963 sysctl_struct(void *oldp, size_t *oldlenp, void *newp, size_t newlen, void *sp, 964 int len) 965 { 966 int error = 0; 967 968 SYSCTL_SCALAR_NEWPCHECK_LEN(newp, newlen, len) 969 SYSCTL_SCALAR_CORE_LEN(oldp, oldlenp, sp, len) 970 SYSCTL_SCALAR_NEWPCOP_LEN(newp, sp, len) 971 972 return (error); 973 } 974 975 /* 976 * Validate parameters and get old parameters 977 * for a structure oriented sysctl function. 978 */ 979 int 980 sysctl_rdstruct(void *oldp, size_t *oldlenp, void *newp, const void *sp, 981 int len) 982 { 983 int error = 0; 984 985 if (newp) 986 return (EPERM); 987 988 SYSCTL_SCALAR_CORE_LEN(oldp, oldlenp, sp, len) 989 990 return (error); 991 } 992 993 /* 994 * As above, but can return a truncated result. 995 */ 996 int 997 sysctl_rdminstruct(void *oldp, size_t *oldlenp, void *newp, const void *sp, 998 int len) 999 { 1000 int error = 0; 1001 1002 if (newp) 1003 return (EPERM); 1004 1005 len = min(*oldlenp, len); 1006 SYSCTL_SCALAR_CORE_LEN(oldp, oldlenp, sp, len) 1007 1008 return (error); 1009 } 1010 1011 /* 1012 * Get file structures. 1013 */ 1014 static int 1015 sysctl_file(void *vwhere, size_t *sizep) 1016 { 1017 int buflen, error; 1018 struct file *fp; 1019 char *start, *where; 1020 1021 start = where = vwhere; 1022 buflen = *sizep; 1023 if (where == NULL) { 1024 /* 1025 * overestimate by 10 files 1026 */ 1027 *sizep = sizeof(filehead) + (nfiles + 10) * sizeof(struct file); 1028 return (0); 1029 } 1030 1031 /* 1032 * first copyout filehead 1033 */ 1034 if (buflen < sizeof(filehead)) { 1035 *sizep = 0; 1036 return (0); 1037 } 1038 error = copyout((caddr_t)&filehead, where, sizeof(filehead)); 1039 if (error) 1040 return (error); 1041 buflen -= sizeof(filehead); 1042 where += sizeof(filehead); 1043 1044 /* 1045 * followed by an array of file structures 1046 */ 1047 for (fp = filehead.lh_first; fp != 0; fp = fp->f_list.le_next) { 1048 if (buflen < sizeof(struct file)) { 1049 *sizep = where - start; 1050 return (ENOMEM); 1051 } 1052 error = copyout((caddr_t)fp, where, sizeof(struct file)); 1053 if (error) 1054 return (error); 1055 buflen -= sizeof(struct file); 1056 where += sizeof(struct file); 1057 } 1058 *sizep = where - start; 1059 return (0); 1060 } 1061 1062 #if defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) 1063 #define FILL_PERM(src, dst) do { \ 1064 (dst)._key = (src)._key; \ 1065 (dst).uid = (src).uid; \ 1066 (dst).gid = (src).gid; \ 1067 (dst).cuid = (src).cuid; \ 1068 (dst).cgid = (src).cgid; \ 1069 (dst).mode = (src).mode; \ 1070 (dst)._seq = (src)._seq; \ 1071 } while (0); 1072 #define FILL_MSG(src, dst) do { \ 1073 FILL_PERM((src).msg_perm, (dst).msg_perm); \ 1074 (dst).msg_qnum = (src).msg_qnum; \ 1075 (dst).msg_qbytes = (src).msg_qbytes; \ 1076 (dst)._msg_cbytes = (src)._msg_cbytes; \ 1077 (dst).msg_lspid = (src).msg_lspid; \ 1078 (dst).msg_lrpid = (src).msg_lrpid; \ 1079 (dst).msg_stime = (src).msg_stime; \ 1080 (dst).msg_rtime = (src).msg_rtime; \ 1081 (dst).msg_ctime = (src).msg_ctime; \ 1082 } while (0) 1083 #define FILL_SEM(src, dst) do { \ 1084 FILL_PERM((src).sem_perm, (dst).sem_perm); \ 1085 (dst).sem_nsems = (src).sem_nsems; \ 1086 (dst).sem_otime = (src).sem_otime; \ 1087 (dst).sem_ctime = (src).sem_ctime; \ 1088 } while (0) 1089 #define FILL_SHM(src, dst) do { \ 1090 FILL_PERM((src).shm_perm, (dst).shm_perm); \ 1091 (dst).shm_segsz = (src).shm_segsz; \ 1092 (dst).shm_lpid = (src).shm_lpid; \ 1093 (dst).shm_cpid = (src).shm_cpid; \ 1094 (dst).shm_atime = (src).shm_atime; \ 1095 (dst).shm_dtime = (src).shm_dtime; \ 1096 (dst).shm_ctime = (src).shm_ctime; \ 1097 (dst).shm_nattch = (src).shm_nattch; \ 1098 } while (0) 1099 1100 static int 1101 sysctl_sysvipc(int *name, u_int namelen, void *where, size_t *sizep) 1102 { 1103 #ifdef SYSVMSG 1104 struct msg_sysctl_info *msgsi; 1105 #endif 1106 #ifdef SYSVSEM 1107 struct sem_sysctl_info *semsi; 1108 #endif 1109 #ifdef SYSVSHM 1110 struct shm_sysctl_info *shmsi; 1111 #endif 1112 size_t infosize, dssize, tsize, buflen; 1113 void *buf = NULL, *buf2; 1114 char *start; 1115 int32_t nds; 1116 int i, error, ret; 1117 1118 if (namelen != 1) 1119 return (EINVAL); 1120 1121 start = where; 1122 buflen = *sizep; 1123 1124 switch (*name) { 1125 case KERN_SYSVIPC_MSG_INFO: 1126 #ifdef SYSVMSG 1127 infosize = sizeof(msgsi->msginfo); 1128 nds = msginfo.msgmni; 1129 dssize = sizeof(msgsi->msgids[0]); 1130 break; 1131 #else 1132 return (EINVAL); 1133 #endif 1134 case KERN_SYSVIPC_SEM_INFO: 1135 #ifdef SYSVSEM 1136 infosize = sizeof(semsi->seminfo); 1137 nds = seminfo.semmni; 1138 dssize = sizeof(semsi->semids[0]); 1139 break; 1140 #else 1141 return (EINVAL); 1142 #endif 1143 case KERN_SYSVIPC_SHM_INFO: 1144 #ifdef SYSVSHM 1145 infosize = sizeof(shmsi->shminfo); 1146 nds = shminfo.shmmni; 1147 dssize = sizeof(shmsi->shmids[0]); 1148 break; 1149 #else 1150 return (EINVAL); 1151 #endif 1152 default: 1153 return (EINVAL); 1154 } 1155 /* 1156 * Round infosize to 64 bit boundary if requesting more than just 1157 * the info structure or getting the total data size. 1158 */ 1159 if (where == NULL || *sizep > infosize) 1160 infosize = ((infosize + 7) / 8) * 8; 1161 tsize = infosize + nds * dssize; 1162 1163 /* Return just the total size required. */ 1164 if (where == NULL) { 1165 *sizep = tsize; 1166 return (0); 1167 } 1168 1169 /* Not enough room for even the info struct. */ 1170 if (buflen < infosize) { 1171 *sizep = 0; 1172 return (ENOMEM); 1173 } 1174 buf = malloc(min(tsize, buflen), M_TEMP, M_WAITOK); 1175 memset(buf, 0, min(tsize, buflen)); 1176 1177 switch (*name) { 1178 #ifdef SYSVMSG 1179 case KERN_SYSVIPC_MSG_INFO: 1180 msgsi = (struct msg_sysctl_info *)buf; 1181 buf2 = &msgsi->msgids[0]; 1182 msgsi->msginfo = msginfo; 1183 break; 1184 #endif 1185 #ifdef SYSVSEM 1186 case KERN_SYSVIPC_SEM_INFO: 1187 semsi = (struct sem_sysctl_info *)buf; 1188 buf2 = &semsi->semids[0]; 1189 semsi->seminfo = seminfo; 1190 break; 1191 #endif 1192 #ifdef SYSVSHM 1193 case KERN_SYSVIPC_SHM_INFO: 1194 shmsi = (struct shm_sysctl_info *)buf; 1195 buf2 = &shmsi->shmids[0]; 1196 shmsi->shminfo = shminfo; 1197 break; 1198 #endif 1199 } 1200 buflen -= infosize; 1201 1202 ret = 0; 1203 if (buflen > 0) { 1204 /* Fill in the IPC data structures. */ 1205 for (i = 0; i < nds; i++) { 1206 if (buflen < dssize) { 1207 ret = ENOMEM; 1208 break; 1209 } 1210 switch (*name) { 1211 #ifdef SYSVMSG 1212 case KERN_SYSVIPC_MSG_INFO: 1213 FILL_MSG(msqids[i], msgsi->msgids[i]); 1214 break; 1215 #endif 1216 #ifdef SYSVSEM 1217 case KERN_SYSVIPC_SEM_INFO: 1218 FILL_SEM(sema[i], semsi->semids[i]); 1219 break; 1220 #endif 1221 #ifdef SYSVSHM 1222 case KERN_SYSVIPC_SHM_INFO: 1223 FILL_SHM(shmsegs[i], shmsi->shmids[i]); 1224 break; 1225 #endif 1226 } 1227 buflen -= dssize; 1228 } 1229 } 1230 *sizep -= buflen; 1231 error = copyout(buf, start, *sizep); 1232 /* If copyout succeeded, use return code set earlier. */ 1233 if (error == 0) 1234 error = ret; 1235 if (buf) 1236 free(buf, M_TEMP); 1237 return (error); 1238 } 1239 #endif /* SYSVMSG || SYSVSEM || SYSVSHM */ 1240 1241 static int 1242 sysctl_msgbuf(void *vwhere, size_t *sizep) 1243 { 1244 char *where = vwhere; 1245 size_t len, maxlen = *sizep; 1246 long beg, end; 1247 int error; 1248 1249 /* 1250 * deal with cases where the message buffer has 1251 * become corrupted. 1252 */ 1253 if (!msgbufenabled || msgbufp->msg_magic != MSG_MAGIC) { 1254 msgbufenabled = 0; 1255 return (ENXIO); 1256 } 1257 1258 if (where == NULL) { 1259 /* always return full buffer size */ 1260 *sizep = msgbufp->msg_bufs; 1261 return (0); 1262 } 1263 1264 error = 0; 1265 maxlen = min(msgbufp->msg_bufs, maxlen); 1266 1267 /* 1268 * First, copy from the write pointer to the end of 1269 * message buffer. 1270 */ 1271 beg = msgbufp->msg_bufx; 1272 end = msgbufp->msg_bufs; 1273 while (maxlen > 0) { 1274 len = min(end - beg, maxlen); 1275 if (len == 0) 1276 break; 1277 error = copyout(&msgbufp->msg_bufc[beg], where, len); 1278 if (error) 1279 break; 1280 where += len; 1281 maxlen -= len; 1282 1283 /* 1284 * ... then, copy from the beginning of message buffer to 1285 * the write pointer. 1286 */ 1287 beg = 0; 1288 end = msgbufp->msg_bufx; 1289 } 1290 return (error); 1291 } 1292 1293 /* 1294 * try over estimating by 5 procs 1295 */ 1296 #define KERN_PROCSLOP (5 * sizeof(struct kinfo_proc)) 1297 1298 static int 1299 sysctl_doeproc(int *name, u_int namelen, void *vwhere, size_t *sizep) 1300 { 1301 struct eproc eproc; 1302 struct kinfo_proc2 kproc2; 1303 struct kinfo_proc *dp; 1304 struct proc *p; 1305 const struct proclist_desc *pd; 1306 char *where, *dp2; 1307 int type, op, arg, elem_size, elem_count; 1308 int buflen, needed, error; 1309 1310 dp = vwhere; 1311 dp2 = where = vwhere; 1312 buflen = where != NULL ? *sizep : 0; 1313 error = needed = 0; 1314 type = name[0]; 1315 1316 if (type == KERN_PROC) { 1317 if (namelen != 3 && !(namelen == 2 && name[1] == KERN_PROC_ALL)) 1318 return (EINVAL); 1319 op = name[1]; 1320 if (op != KERN_PROC_ALL) 1321 arg = name[2]; 1322 } else { 1323 if (namelen != 5) 1324 return (EINVAL); 1325 op = name[1]; 1326 arg = name[2]; 1327 elem_size = name[3]; 1328 elem_count = name[4]; 1329 } 1330 1331 proclist_lock_read(); 1332 1333 pd = proclists; 1334 again: 1335 for (p = LIST_FIRST(pd->pd_list); p != NULL; p = LIST_NEXT(p, p_list)) { 1336 /* 1337 * Skip embryonic processes. 1338 */ 1339 if (p->p_stat == SIDL) 1340 continue; 1341 /* 1342 * TODO - make more efficient (see notes below). 1343 * do by session. 1344 */ 1345 switch (op) { 1346 1347 case KERN_PROC_PID: 1348 /* could do this with just a lookup */ 1349 if (p->p_pid != (pid_t)arg) 1350 continue; 1351 break; 1352 1353 case KERN_PROC_PGRP: 1354 /* could do this by traversing pgrp */ 1355 if (p->p_pgrp->pg_id != (pid_t)arg) 1356 continue; 1357 break; 1358 1359 case KERN_PROC_SESSION: 1360 if (p->p_session->s_sid != (pid_t)arg) 1361 continue; 1362 break; 1363 1364 case KERN_PROC_TTY: 1365 if (arg == KERN_PROC_TTY_REVOKE) { 1366 if ((p->p_flag & P_CONTROLT) == 0 || 1367 p->p_session->s_ttyp == NULL || 1368 p->p_session->s_ttyvp != NULL) 1369 continue; 1370 } else if ((p->p_flag & P_CONTROLT) == 0 || 1371 p->p_session->s_ttyp == NULL) { 1372 if ((dev_t)arg != KERN_PROC_TTY_NODEV) 1373 continue; 1374 } else if (p->p_session->s_ttyp->t_dev != (dev_t)arg) 1375 continue; 1376 break; 1377 1378 case KERN_PROC_UID: 1379 if (p->p_ucred->cr_uid != (uid_t)arg) 1380 continue; 1381 break; 1382 1383 case KERN_PROC_RUID: 1384 if (p->p_cred->p_ruid != (uid_t)arg) 1385 continue; 1386 break; 1387 1388 case KERN_PROC_GID: 1389 if (p->p_ucred->cr_gid != (uid_t)arg) 1390 continue; 1391 break; 1392 1393 case KERN_PROC_RGID: 1394 if (p->p_cred->p_rgid != (uid_t)arg) 1395 continue; 1396 break; 1397 1398 case KERN_PROC_ALL: 1399 /* allow everything */ 1400 break; 1401 1402 default: 1403 error = EINVAL; 1404 goto cleanup; 1405 } 1406 if (type == KERN_PROC) { 1407 if (buflen >= sizeof(struct kinfo_proc)) { 1408 fill_eproc(p, &eproc); 1409 error = copyout((caddr_t)p, &dp->kp_proc, 1410 sizeof(struct proc)); 1411 if (error) 1412 goto cleanup; 1413 error = copyout((caddr_t)&eproc, &dp->kp_eproc, 1414 sizeof(eproc)); 1415 if (error) 1416 goto cleanup; 1417 dp++; 1418 buflen -= sizeof(struct kinfo_proc); 1419 } 1420 needed += sizeof(struct kinfo_proc); 1421 } else { /* KERN_PROC2 */ 1422 if (buflen >= elem_size && elem_count > 0) { 1423 fill_kproc2(p, &kproc2); 1424 /* 1425 * Copy out elem_size, but not larger than 1426 * the size of a struct kinfo_proc2. 1427 */ 1428 error = copyout(&kproc2, dp2, 1429 min(sizeof(kproc2), elem_size)); 1430 if (error) 1431 goto cleanup; 1432 dp2 += elem_size; 1433 buflen -= elem_size; 1434 elem_count--; 1435 } 1436 needed += elem_size; 1437 } 1438 } 1439 pd++; 1440 if (pd->pd_list != NULL) 1441 goto again; 1442 proclist_unlock_read(); 1443 1444 if (where != NULL) { 1445 if (type == KERN_PROC) 1446 *sizep = (caddr_t)dp - where; 1447 else 1448 *sizep = dp2 - where; 1449 if (needed > *sizep) 1450 return (ENOMEM); 1451 } else { 1452 needed += KERN_PROCSLOP; 1453 *sizep = needed; 1454 } 1455 return (0); 1456 cleanup: 1457 proclist_unlock_read(); 1458 return (error); 1459 } 1460 1461 /* 1462 * Fill in an eproc structure for the specified process. 1463 */ 1464 void 1465 fill_eproc(struct proc *p, struct eproc *ep) 1466 { 1467 struct tty *tp; 1468 struct lwp *l; 1469 1470 ep->e_paddr = p; 1471 ep->e_sess = p->p_session; 1472 ep->e_pcred = *p->p_cred; 1473 ep->e_ucred = *p->p_ucred; 1474 if (p->p_stat == SIDL || P_ZOMBIE(p)) { 1475 ep->e_vm.vm_rssize = 0; 1476 ep->e_vm.vm_tsize = 0; 1477 ep->e_vm.vm_dsize = 0; 1478 ep->e_vm.vm_ssize = 0; 1479 /* ep->e_vm.vm_pmap = XXX; */ 1480 } else { 1481 struct vmspace *vm = p->p_vmspace; 1482 1483 ep->e_vm.vm_rssize = vm_resident_count(vm); 1484 ep->e_vm.vm_tsize = vm->vm_tsize; 1485 ep->e_vm.vm_dsize = vm->vm_dsize; 1486 ep->e_vm.vm_ssize = vm->vm_ssize; 1487 1488 /* Pick a "representative" LWP */ 1489 l = proc_representative_lwp(p); 1490 1491 if (l->l_wmesg) 1492 strncpy(ep->e_wmesg, l->l_wmesg, WMESGLEN); 1493 } 1494 if (p->p_pptr) 1495 ep->e_ppid = p->p_pptr->p_pid; 1496 else 1497 ep->e_ppid = 0; 1498 ep->e_pgid = p->p_pgrp->pg_id; 1499 ep->e_sid = ep->e_sess->s_sid; 1500 ep->e_jobc = p->p_pgrp->pg_jobc; 1501 if ((p->p_flag & P_CONTROLT) && 1502 (tp = ep->e_sess->s_ttyp)) { 1503 ep->e_tdev = tp->t_dev; 1504 ep->e_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PID; 1505 ep->e_tsess = tp->t_session; 1506 } else 1507 ep->e_tdev = NODEV; 1508 1509 ep->e_xsize = ep->e_xrssize = 0; 1510 ep->e_xccount = ep->e_xswrss = 0; 1511 ep->e_flag = ep->e_sess->s_ttyvp ? EPROC_CTTY : 0; 1512 if (SESS_LEADER(p)) 1513 ep->e_flag |= EPROC_SLEADER; 1514 strncpy(ep->e_login, ep->e_sess->s_login, MAXLOGNAME); 1515 } 1516 1517 /* 1518 * Fill in an eproc structure for the specified process. 1519 */ 1520 static void 1521 fill_kproc2(struct proc *p, struct kinfo_proc2 *ki) 1522 { 1523 struct tty *tp; 1524 struct lwp *l; 1525 memset(ki, 0, sizeof(*ki)); 1526 1527 /* XXX NJWLWP 1528 * These are likely not what the caller was looking for. 1529 * The perils of playing with the kernel data structures... 1530 */ 1531 ki->p_paddr = PTRTOINT64(p); 1532 ki->p_fd = PTRTOINT64(p->p_fd); 1533 ki->p_cwdi = PTRTOINT64(p->p_cwdi); 1534 ki->p_stats = PTRTOINT64(p->p_stats); 1535 ki->p_limit = PTRTOINT64(p->p_limit); 1536 ki->p_vmspace = PTRTOINT64(p->p_vmspace); 1537 ki->p_sigacts = PTRTOINT64(p->p_sigacts); 1538 ki->p_sess = PTRTOINT64(p->p_session); 1539 ki->p_tsess = 0; /* may be changed if controlling tty below */ 1540 ki->p_ru = PTRTOINT64(p->p_ru); 1541 1542 ki->p_eflag = 0; 1543 ki->p_exitsig = p->p_exitsig; 1544 ki->p_flag = p->p_flag; 1545 1546 ki->p_pid = p->p_pid; 1547 if (p->p_pptr) 1548 ki->p_ppid = p->p_pptr->p_pid; 1549 else 1550 ki->p_ppid = 0; 1551 ki->p_sid = p->p_session->s_sid; 1552 ki->p__pgid = p->p_pgrp->pg_id; 1553 1554 ki->p_tpgid = NO_PID; /* may be changed if controlling tty below */ 1555 1556 ki->p_uid = p->p_ucred->cr_uid; 1557 ki->p_ruid = p->p_cred->p_ruid; 1558 ki->p_gid = p->p_ucred->cr_gid; 1559 ki->p_rgid = p->p_cred->p_rgid; 1560 1561 memcpy(ki->p_groups, p->p_cred->pc_ucred->cr_groups, 1562 min(sizeof(ki->p_groups), sizeof(p->p_cred->pc_ucred->cr_groups))); 1563 ki->p_ngroups = p->p_cred->pc_ucred->cr_ngroups; 1564 1565 ki->p_jobc = p->p_pgrp->pg_jobc; 1566 if ((p->p_flag & P_CONTROLT) && (tp = p->p_session->s_ttyp)) { 1567 ki->p_tdev = tp->t_dev; 1568 ki->p_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PID; 1569 ki->p_tsess = PTRTOINT64(tp->t_session); 1570 } else { 1571 ki->p_tdev = NODEV; 1572 } 1573 1574 ki->p_estcpu = p->p_estcpu; 1575 ki->p_rtime_sec = p->p_rtime.tv_sec; 1576 ki->p_rtime_usec = p->p_rtime.tv_usec; 1577 ki->p_cpticks = p->p_cpticks; 1578 ki->p_pctcpu = p->p_pctcpu; 1579 1580 ki->p_uticks = p->p_uticks; 1581 ki->p_sticks = p->p_sticks; 1582 ki->p_iticks = p->p_iticks; 1583 1584 ki->p_tracep = PTRTOINT64(p->p_tracep); 1585 ki->p_traceflag = p->p_traceflag; 1586 1587 1588 memcpy(&ki->p_siglist, &p->p_sigctx.ps_siglist, sizeof(ki_sigset_t)); 1589 memcpy(&ki->p_sigmask, &p->p_sigctx.ps_sigmask, sizeof(ki_sigset_t)); 1590 memcpy(&ki->p_sigignore, &p->p_sigctx.ps_sigignore,sizeof(ki_sigset_t)); 1591 memcpy(&ki->p_sigcatch, &p->p_sigctx.ps_sigcatch, sizeof(ki_sigset_t)); 1592 1593 ki->p_stat = p->p_stat; 1594 ki->p_nice = p->p_nice; 1595 1596 ki->p_xstat = p->p_xstat; 1597 ki->p_acflag = p->p_acflag; 1598 1599 strncpy(ki->p_comm, p->p_comm, 1600 min(sizeof(ki->p_comm), sizeof(p->p_comm))); 1601 1602 strncpy(ki->p_login, p->p_session->s_login, sizeof(ki->p_login)); 1603 1604 if (p->p_stat == SIDL || P_ZOMBIE(p)) { 1605 ki->p_vm_rssize = 0; 1606 ki->p_vm_tsize = 0; 1607 ki->p_vm_dsize = 0; 1608 ki->p_vm_ssize = 0; 1609 } else { 1610 struct vmspace *vm = p->p_vmspace; 1611 1612 ki->p_vm_rssize = vm_resident_count(vm); 1613 ki->p_vm_tsize = vm->vm_tsize; 1614 ki->p_vm_dsize = vm->vm_dsize; 1615 ki->p_vm_ssize = vm->vm_ssize; 1616 1617 /* Pick a "representative" LWP */ 1618 l = proc_representative_lwp(p); 1619 ki->p_forw = PTRTOINT64(l->l_forw); 1620 ki->p_back = PTRTOINT64(l->l_back); 1621 ki->p_addr = PTRTOINT64(l->l_addr); 1622 ki->p_stat = l->l_stat; 1623 ki->p_flag |= l->l_flag; 1624 ki->p_swtime = l->l_swtime; 1625 ki->p_slptime = l->l_slptime; 1626 if (l->l_stat == LSONPROC) { 1627 KDASSERT(l->l_cpu != NULL); 1628 ki->p_schedflags = l->l_cpu->ci_schedstate.spc_flags; 1629 } else 1630 ki->p_schedflags = 0; 1631 ki->p_holdcnt = l->l_holdcnt; 1632 ki->p_priority = l->l_priority; 1633 ki->p_usrpri = l->l_usrpri; 1634 if (l->l_wmesg) 1635 strncpy(ki->p_wmesg, l->l_wmesg, sizeof(ki->p_wmesg)); 1636 ki->p_wchan = PTRTOINT64(l->l_wchan); 1637 1638 } 1639 1640 if (p->p_session->s_ttyvp) 1641 ki->p_eflag |= EPROC_CTTY; 1642 if (SESS_LEADER(p)) 1643 ki->p_eflag |= EPROC_SLEADER; 1644 1645 /* XXX Is this double check necessary? */ 1646 if (P_ZOMBIE(p)) { 1647 ki->p_uvalid = 0; 1648 } else { 1649 ki->p_uvalid = 1; 1650 1651 ki->p_ustart_sec = p->p_stats->p_start.tv_sec; 1652 ki->p_ustart_usec = p->p_stats->p_start.tv_usec; 1653 1654 ki->p_uutime_sec = p->p_stats->p_ru.ru_utime.tv_sec; 1655 ki->p_uutime_usec = p->p_stats->p_ru.ru_utime.tv_usec; 1656 ki->p_ustime_sec = p->p_stats->p_ru.ru_stime.tv_sec; 1657 ki->p_ustime_usec = p->p_stats->p_ru.ru_stime.tv_usec; 1658 1659 ki->p_uru_maxrss = p->p_stats->p_ru.ru_maxrss; 1660 ki->p_uru_ixrss = p->p_stats->p_ru.ru_ixrss; 1661 ki->p_uru_idrss = p->p_stats->p_ru.ru_idrss; 1662 ki->p_uru_isrss = p->p_stats->p_ru.ru_isrss; 1663 ki->p_uru_minflt = p->p_stats->p_ru.ru_minflt; 1664 ki->p_uru_majflt = p->p_stats->p_ru.ru_majflt; 1665 ki->p_uru_nswap = p->p_stats->p_ru.ru_nswap; 1666 ki->p_uru_inblock = p->p_stats->p_ru.ru_inblock; 1667 ki->p_uru_oublock = p->p_stats->p_ru.ru_oublock; 1668 ki->p_uru_msgsnd = p->p_stats->p_ru.ru_msgsnd; 1669 ki->p_uru_msgrcv = p->p_stats->p_ru.ru_msgrcv; 1670 ki->p_uru_nsignals = p->p_stats->p_ru.ru_nsignals; 1671 ki->p_uru_nvcsw = p->p_stats->p_ru.ru_nvcsw; 1672 ki->p_uru_nivcsw = p->p_stats->p_ru.ru_nivcsw; 1673 1674 ki->p_uctime_sec = p->p_stats->p_cru.ru_utime.tv_sec + 1675 p->p_stats->p_cru.ru_stime.tv_sec; 1676 ki->p_uctime_usec = p->p_stats->p_cru.ru_utime.tv_usec + 1677 p->p_stats->p_cru.ru_stime.tv_usec; 1678 } 1679 #ifdef MULTIPROCESSOR 1680 if (p->p_cpu != NULL) 1681 ki->p_cpuid = p->p_cpu->ci_cpuid; 1682 else 1683 #endif 1684 ki->p_cpuid = KI_NOCPU; 1685 1686 } 1687 1688 1689 /* 1690 * Pick a LWP to represent the process for those operations which 1691 * want information about a "process" that is actually associated 1692 * with a LWP. 1693 */ 1694 static struct lwp *proc_representative_lwp(p) 1695 struct proc *p; 1696 { 1697 struct lwp *l = NULL; 1698 1699 /* Trivial case: only one LWP */ 1700 if (p->p_nrlwps == 1) 1701 return (LIST_FIRST(&p->p_lwps)); 1702 1703 switch (p->p_stat) { 1704 case SSTOP: 1705 /* Pick the first stopped LWP */ 1706 LIST_FOREACH(l, &p->p_lwps, l_sibling) { 1707 if (l->l_stat == LSSTOP) 1708 return (l); 1709 } 1710 /* NOTREACHED */ 1711 break; 1712 case SACTIVE: 1713 /* Pick the first live LWP */ 1714 LIST_FOREACH(l, &p->p_lwps, l_sibling) { 1715 if (l->l_stat == LSRUN || 1716 l->l_stat == LSSLEEP || 1717 l->l_stat == LSONPROC || 1718 l->l_stat == LSSUSPENDED) 1719 return (l); 1720 } 1721 break; 1722 case SDEAD: 1723 case SZOMB: 1724 /* Doesn't really matter... */ 1725 l = LIST_FIRST(&p->p_lwps); 1726 break; 1727 #ifdef DIAGNOSTIC 1728 case SIDL: 1729 /* We have more than one LWP and we're in SIDL? 1730 * How'd that happen? 1731 */ 1732 panic("Too many LWPs (%d) in SIDL process %d (%s)", 1733 p->p_nrlwps, p->p_pid, p->p_comm); 1734 default: 1735 panic("Process %d (%s) in unknown state %d", 1736 p->p_pid, p->p_comm, p->p_stat); 1737 #endif 1738 } 1739 1740 panic("proc_representative_lwp: couldn't find a lwp for process" 1741 " %d (%s)", p->p_pid, p->p_comm); 1742 /* NOTREACHED */ 1743 return NULL; 1744 } 1745 1746 1747 int 1748 sysctl_procargs(int *name, u_int namelen, void *where, size_t *sizep, 1749 struct proc *up) 1750 { 1751 struct ps_strings pss; 1752 struct proc *p; 1753 size_t len, upper_bound, xlen; 1754 struct uio auio; 1755 struct iovec aiov; 1756 vaddr_t argv; 1757 pid_t pid; 1758 int nargv, type, error, i; 1759 char *arg; 1760 char *tmp; 1761 1762 if (namelen != 2) 1763 return (EINVAL); 1764 pid = name[0]; 1765 type = name[1]; 1766 1767 switch (type) { 1768 case KERN_PROC_ARGV: 1769 case KERN_PROC_NARGV: 1770 case KERN_PROC_ENV: 1771 case KERN_PROC_NENV: 1772 /* ok */ 1773 break; 1774 default: 1775 return (EINVAL); 1776 } 1777 1778 /* check pid */ 1779 if ((p = pfind(pid)) == NULL) 1780 return (EINVAL); 1781 1782 /* only root or same user change look at the environment */ 1783 if (type == KERN_PROC_ENV || type == KERN_PROC_NENV) { 1784 if (up->p_ucred->cr_uid != 0) { 1785 if (up->p_cred->p_ruid != p->p_cred->p_ruid || 1786 up->p_cred->p_ruid != p->p_cred->p_svuid) 1787 return (EPERM); 1788 } 1789 } 1790 1791 if (sizep != NULL && where == NULL) { 1792 if (type == KERN_PROC_NARGV || type == KERN_PROC_NENV) 1793 *sizep = sizeof (int); 1794 else 1795 *sizep = ARG_MAX; /* XXX XXX XXX */ 1796 return (0); 1797 } 1798 if (where == NULL || sizep == NULL) 1799 return (EINVAL); 1800 1801 /* 1802 * Zombies don't have a stack, so we can't read their psstrings. 1803 * System processes also don't have a user stack. 1804 */ 1805 if (P_ZOMBIE(p) || (p->p_flag & P_SYSTEM) != 0) 1806 return (EINVAL); 1807 1808 /* 1809 * Lock the process down in memory. 1810 */ 1811 /* XXXCDC: how should locking work here? */ 1812 if ((p->p_flag & P_WEXIT) || (p->p_vmspace->vm_refcnt < 1)) 1813 return (EFAULT); 1814 1815 p->p_vmspace->vm_refcnt++; /* XXX */ 1816 1817 /* 1818 * Allocate a temporary buffer to hold the arguments. 1819 */ 1820 arg = malloc(PAGE_SIZE, M_TEMP, M_WAITOK); 1821 1822 /* 1823 * Read in the ps_strings structure. 1824 */ 1825 aiov.iov_base = &pss; 1826 aiov.iov_len = sizeof(pss); 1827 auio.uio_iov = &aiov; 1828 auio.uio_iovcnt = 1; 1829 auio.uio_offset = (vaddr_t)p->p_psstr; 1830 auio.uio_resid = sizeof(pss); 1831 auio.uio_segflg = UIO_SYSSPACE; 1832 auio.uio_rw = UIO_READ; 1833 auio.uio_procp = NULL; 1834 error = uvm_io(&p->p_vmspace->vm_map, &auio); 1835 if (error) 1836 goto done; 1837 1838 if (type == KERN_PROC_ARGV || type == KERN_PROC_NARGV) 1839 memcpy(&nargv, (char *)&pss + p->p_psnargv, sizeof(nargv)); 1840 else 1841 memcpy(&nargv, (char *)&pss + p->p_psnenv, sizeof(nargv)); 1842 if (type == KERN_PROC_NARGV || type == KERN_PROC_NENV) { 1843 error = copyout(&nargv, where, sizeof(nargv)); 1844 *sizep = sizeof(nargv); 1845 goto done; 1846 } 1847 /* 1848 * Now read the address of the argument vector. 1849 */ 1850 switch (type) { 1851 case KERN_PROC_ARGV: 1852 /* XXX compat32 stuff here */ 1853 memcpy(&tmp, (char *)&pss + p->p_psargv, sizeof(tmp)); 1854 break; 1855 case KERN_PROC_ENV: 1856 memcpy(&tmp, (char *)&pss + p->p_psenv, sizeof(tmp)); 1857 break; 1858 default: 1859 return (EINVAL); 1860 } 1861 auio.uio_offset = (off_t)(long)tmp; 1862 aiov.iov_base = &argv; 1863 aiov.iov_len = sizeof(argv); 1864 auio.uio_iov = &aiov; 1865 auio.uio_iovcnt = 1; 1866 auio.uio_resid = sizeof(argv); 1867 auio.uio_segflg = UIO_SYSSPACE; 1868 auio.uio_rw = UIO_READ; 1869 auio.uio_procp = NULL; 1870 error = uvm_io(&p->p_vmspace->vm_map, &auio); 1871 if (error) 1872 goto done; 1873 1874 /* 1875 * Now copy in the actual argument vector, one page at a time, 1876 * since we don't know how long the vector is (though, we do 1877 * know how many NUL-terminated strings are in the vector). 1878 */ 1879 len = 0; 1880 upper_bound = *sizep; 1881 for (; nargv != 0 && len < upper_bound; len += xlen) { 1882 aiov.iov_base = arg; 1883 aiov.iov_len = PAGE_SIZE; 1884 auio.uio_iov = &aiov; 1885 auio.uio_iovcnt = 1; 1886 auio.uio_offset = argv + len; 1887 xlen = PAGE_SIZE - ((argv + len) & PAGE_MASK); 1888 auio.uio_resid = xlen; 1889 auio.uio_segflg = UIO_SYSSPACE; 1890 auio.uio_rw = UIO_READ; 1891 auio.uio_procp = NULL; 1892 error = uvm_io(&p->p_vmspace->vm_map, &auio); 1893 if (error) 1894 goto done; 1895 1896 for (i = 0; i < xlen && nargv != 0; i++) { 1897 if (arg[i] == '\0') 1898 nargv--; /* one full string */ 1899 } 1900 1901 /* make sure we don't copyout past the end of the user's buffer */ 1902 if (len + i > upper_bound) 1903 i = upper_bound - len; 1904 1905 error = copyout(arg, (char *)where + len, i); 1906 if (error) 1907 break; 1908 1909 if (nargv == 0) { 1910 len += i; 1911 break; 1912 } 1913 } 1914 *sizep = len; 1915 1916 done: 1917 uvmspace_free(p->p_vmspace); 1918 1919 free(arg, M_TEMP); 1920 return (error); 1921 } 1922 1923 #if NPTY > 0 1924 int pty_maxptys(int, int); /* defined in kern/tty_pty.c */ 1925 1926 /* 1927 * Validate parameters and get old / set new parameters 1928 * for pty sysctl function. 1929 */ 1930 static int 1931 sysctl_pty(void *oldp, size_t *oldlenp, void *newp, size_t newlen) 1932 { 1933 int error = 0; 1934 int oldmax = 0, newmax = 0; 1935 1936 /* get current value of maxptys */ 1937 oldmax = pty_maxptys(0, 0); 1938 1939 SYSCTL_SCALAR_CORE_TYP(oldp, oldlenp, &oldmax, int) 1940 1941 if (!error && newp) { 1942 SYSCTL_SCALAR_NEWPCHECK_TYP(newp, newlen, int) 1943 SYSCTL_SCALAR_NEWPCOP_TYP(newp, &newmax, int) 1944 1945 if (newmax != pty_maxptys(newmax, (newp != NULL))) 1946 return (EINVAL); 1947 1948 } 1949 1950 return (error); 1951 } 1952 #endif /* NPTY > 0 */ 1953
Indexes created Tue Sep 30 06:09:59 GMT 2025