init_sysctl.c revision 1.112
1/* $NetBSD: init_sysctl.c,v 1.112 2007/10/19 12:16:42 ad Exp $ */ 2 3/*- 4 * Copyright (c) 2003 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Andrew Brown. 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 NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39#include <sys/cdefs.h> 40__KERNEL_RCSID(0, "$NetBSD: init_sysctl.c,v 1.112 2007/10/19 12:16:42 ad Exp $"); 41 42#include "opt_sysv.h" 43#include "opt_multiprocessor.h" 44#include "opt_posix.h" 45#include "opt_compat_netbsd32.h" 46#include "pty.h" 47#include "rnd.h" 48 49#include <sys/types.h> 50#include <sys/param.h> 51#include <sys/sysctl.h> 52#include <sys/cpu.h> 53#include <sys/errno.h> 54#include <sys/systm.h> 55#include <sys/kernel.h> 56#include <sys/unistd.h> 57#include <sys/disklabel.h> 58#include <sys/rnd.h> 59#include <sys/vnode.h> 60#include <sys/mount.h> 61#include <sys/namei.h> 62#include <sys/msgbuf.h> 63#include <dev/cons.h> 64#include <sys/socketvar.h> 65#include <sys/file.h> 66#include <sys/filedesc.h> 67#include <sys/tty.h> 68#include <sys/malloc.h> 69#include <sys/resource.h> 70#include <sys/resourcevar.h> 71#include <sys/exec.h> 72#include <sys/conf.h> 73#include <sys/device.h> 74#include <sys/stat.h> 75#include <sys/kauth.h> 76#include <sys/ktrace.h> 77 78#ifdef COMPAT_NETBSD32 79#include <compat/netbsd32/netbsd32.h> 80#endif 81 82#include <sys/cpu.h> 83 84/* XXX this should not be here */ 85int security_setidcore_dump; 86char security_setidcore_path[MAXPATHLEN] = "/var/crash/%n.core"; 87uid_t security_setidcore_owner = 0; 88gid_t security_setidcore_group = 0; 89mode_t security_setidcore_mode = (S_IRUSR|S_IWUSR); 90 91static const u_int sysctl_flagmap[] = { 92 PK_ADVLOCK, P_ADVLOCK, 93 PK_EXEC, P_EXEC, 94 PK_NOCLDWAIT, P_NOCLDWAIT, 95 PK_32, P_32, 96 PK_CLDSIGIGN, P_CLDSIGIGN, 97 PK_PAXMPROTECT, P_PAXMPROTECT, 98 PK_PAXNOMPROTECT, P_PAXNOMPROTECT, 99 PK_SYSTRACE, P_SYSTRACE, 100 PK_SUGID, P_SUGID, 101 0 102}; 103 104static const u_int sysctl_sflagmap[] = { 105 PS_NOCLDSTOP, P_NOCLDSTOP, 106 PS_PPWAIT, P_PPWAIT, 107 PS_WEXIT, P_WEXIT, 108 PS_STOPFORK, P_STOPFORK, 109 PS_STOPEXEC, P_STOPEXEC, 110 PS_STOPEXIT, P_STOPEXIT, 111 0 112}; 113 114static const u_int sysctl_slflagmap[] = { 115 PSL_TRACED, P_TRACED, 116 PSL_FSTRACE, P_FSTRACE, 117 PSL_CHTRACED, P_CHTRACED, 118 PSL_SYSCALL, P_SYSCALL, 119 0 120}; 121 122static const u_int sysctl_lflagmap[] = { 123 PL_CONTROLT, P_CONTROLT, 124 0 125}; 126 127static const u_int sysctl_stflagmap[] = { 128 PST_PROFIL, P_PROFIL, 129 0 130 131}; 132 133static const u_int sysctl_lwpflagmap[] = { 134 LW_INMEM, P_INMEM, 135 LW_SINTR, P_SINTR, 136 LW_SYSTEM, P_SYSTEM, 137 0 138}; 139 140static const u_int sysctl_lwpprflagmap[] = { 141 LPR_DETACHED, L_DETACHED, 142 0 143}; 144 145 146/* 147 * try over estimating by 5 procs/lwps 148 */ 149#define KERN_PROCSLOP (5 * sizeof(struct kinfo_proc)) 150#define KERN_LWPSLOP (5 * sizeof(struct kinfo_lwp)) 151 152static int dcopyout(struct lwp *, const void *, void *, size_t); 153 154static int 155dcopyout(l, kaddr, uaddr, len) 156 struct lwp *l; 157 const void *kaddr; 158 void *uaddr; 159 size_t len; 160{ 161 int error; 162 163 error = copyout(kaddr, uaddr, len); 164 ktrmibio(-1, UIO_READ, uaddr, len, error); 165 166 return error; 167} 168 169#ifdef DIAGNOSTIC 170static int sysctl_kern_trigger_panic(SYSCTLFN_PROTO); 171#endif 172static int sysctl_kern_maxvnodes(SYSCTLFN_PROTO); 173static int sysctl_kern_rtc_offset(SYSCTLFN_PROTO); 174static int sysctl_kern_maxproc(SYSCTLFN_PROTO); 175static int sysctl_kern_hostid(SYSCTLFN_PROTO); 176static int sysctl_setlen(SYSCTLFN_PROTO); 177static int sysctl_kern_clockrate(SYSCTLFN_PROTO); 178static int sysctl_kern_file(SYSCTLFN_PROTO); 179static int sysctl_msgbuf(SYSCTLFN_PROTO); 180static int sysctl_kern_defcorename(SYSCTLFN_PROTO); 181static int sysctl_kern_cptime(SYSCTLFN_PROTO); 182#if NPTY > 0 183static int sysctl_kern_maxptys(SYSCTLFN_PROTO); 184#endif /* NPTY > 0 */ 185static int sysctl_kern_sbmax(SYSCTLFN_PROTO); 186static int sysctl_kern_urnd(SYSCTLFN_PROTO); 187static int sysctl_kern_arnd(SYSCTLFN_PROTO); 188static int sysctl_kern_lwp(SYSCTLFN_PROTO); 189static int sysctl_kern_forkfsleep(SYSCTLFN_PROTO); 190static int sysctl_kern_root_partition(SYSCTLFN_PROTO); 191static int sysctl_kern_drivers(SYSCTLFN_PROTO); 192static int sysctl_kern_file2(SYSCTLFN_PROTO); 193static int sysctl_security_setidcore(SYSCTLFN_PROTO); 194static int sysctl_security_setidcorename(SYSCTLFN_PROTO); 195static int sysctl_kern_cpid(SYSCTLFN_PROTO); 196static int sysctl_doeproc(SYSCTLFN_PROTO); 197static int sysctl_kern_proc_args(SYSCTLFN_PROTO); 198static int sysctl_hw_usermem(SYSCTLFN_PROTO); 199static int sysctl_hw_cnmagic(SYSCTLFN_PROTO); 200 201static u_int sysctl_map_flags(const u_int *, u_int); 202static void fill_kproc2(struct proc *, struct kinfo_proc2 *); 203static void fill_lwp(struct lwp *l, struct kinfo_lwp *kl); 204static void fill_file(struct kinfo_file *, const struct file *, struct proc *, 205 int); 206 207/* 208 * ******************************************************************** 209 * section 1: setup routines 210 * ******************************************************************** 211 * These functions are stuffed into a link set for sysctl setup 212 * functions. They're never called or referenced from anywhere else. 213 * ******************************************************************** 214 */ 215 216/* 217 * sets up the base nodes... 218 */ 219SYSCTL_SETUP(sysctl_root_setup, "sysctl base setup") 220{ 221 222 sysctl_createv(clog, 0, NULL, NULL, 223 CTLFLAG_PERMANENT, 224 CTLTYPE_NODE, "kern", 225 SYSCTL_DESCR("High kernel"), 226 NULL, 0, NULL, 0, 227 CTL_KERN, CTL_EOL); 228 sysctl_createv(clog, 0, NULL, NULL, 229 CTLFLAG_PERMANENT, 230 CTLTYPE_NODE, "vm", 231 SYSCTL_DESCR("Virtual memory"), 232 NULL, 0, NULL, 0, 233 CTL_VM, CTL_EOL); 234 sysctl_createv(clog, 0, NULL, NULL, 235 CTLFLAG_PERMANENT, 236 CTLTYPE_NODE, "vfs", 237 SYSCTL_DESCR("Filesystem"), 238 NULL, 0, NULL, 0, 239 CTL_VFS, CTL_EOL); 240 sysctl_createv(clog, 0, NULL, NULL, 241 CTLFLAG_PERMANENT, 242 CTLTYPE_NODE, "net", 243 SYSCTL_DESCR("Networking"), 244 NULL, 0, NULL, 0, 245 CTL_NET, CTL_EOL); 246 sysctl_createv(clog, 0, NULL, NULL, 247 CTLFLAG_PERMANENT, 248 CTLTYPE_NODE, "debug", 249 SYSCTL_DESCR("Debugging"), 250 NULL, 0, NULL, 0, 251 CTL_DEBUG, CTL_EOL); 252 sysctl_createv(clog, 0, NULL, NULL, 253 CTLFLAG_PERMANENT, 254 CTLTYPE_NODE, "hw", 255 SYSCTL_DESCR("Generic CPU, I/O"), 256 NULL, 0, NULL, 0, 257 CTL_HW, CTL_EOL); 258 sysctl_createv(clog, 0, NULL, NULL, 259 CTLFLAG_PERMANENT, 260 CTLTYPE_NODE, "machdep", 261 SYSCTL_DESCR("Machine dependent"), 262 NULL, 0, NULL, 0, 263 CTL_MACHDEP, CTL_EOL); 264 /* 265 * this node is inserted so that the sysctl nodes in libc can 266 * operate. 267 */ 268 sysctl_createv(clog, 0, NULL, NULL, 269 CTLFLAG_PERMANENT, 270 CTLTYPE_NODE, "user", 271 SYSCTL_DESCR("User-level"), 272 NULL, 0, NULL, 0, 273 CTL_USER, CTL_EOL); 274 sysctl_createv(clog, 0, NULL, NULL, 275 CTLFLAG_PERMANENT, 276 CTLTYPE_NODE, "ddb", 277 SYSCTL_DESCR("In-kernel debugger"), 278 NULL, 0, NULL, 0, 279 CTL_DDB, CTL_EOL); 280 sysctl_createv(clog, 0, NULL, NULL, 281 CTLFLAG_PERMANENT, 282 CTLTYPE_NODE, "proc", 283 SYSCTL_DESCR("Per-process"), 284 NULL, 0, NULL, 0, 285 CTL_PROC, CTL_EOL); 286 sysctl_createv(clog, 0, NULL, NULL, 287 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 288 CTLTYPE_NODE, "vendor", 289 SYSCTL_DESCR("Vendor specific"), 290 NULL, 0, NULL, 0, 291 CTL_VENDOR, CTL_EOL); 292 sysctl_createv(clog, 0, NULL, NULL, 293 CTLFLAG_PERMANENT, 294 CTLTYPE_NODE, "emul", 295 SYSCTL_DESCR("Emulation settings"), 296 NULL, 0, NULL, 0, 297 CTL_EMUL, CTL_EOL); 298 sysctl_createv(clog, 0, NULL, NULL, 299 CTLFLAG_PERMANENT, 300 CTLTYPE_NODE, "security", 301 SYSCTL_DESCR("Security"), 302 NULL, 0, NULL, 0, 303 CTL_SECURITY, CTL_EOL); 304} 305 306/* 307 * this setup routine is a replacement for kern_sysctl() 308 */ 309SYSCTL_SETUP(sysctl_kern_setup, "sysctl kern subtree setup") 310{ 311 extern int kern_logsigexit; /* defined in kern/kern_sig.c */ 312 extern fixpt_t ccpu; /* defined in kern/kern_synch.c */ 313 extern int dumponpanic; /* defined in kern/subr_prf.c */ 314 const struct sysctlnode *rnode; 315 316 sysctl_createv(clog, 0, NULL, NULL, 317 CTLFLAG_PERMANENT, 318 CTLTYPE_NODE, "kern", NULL, 319 NULL, 0, NULL, 0, 320 CTL_KERN, CTL_EOL); 321 322 sysctl_createv(clog, 0, NULL, NULL, 323 CTLFLAG_PERMANENT, 324 CTLTYPE_STRING, "ostype", 325 SYSCTL_DESCR("Operating system type"), 326 NULL, 0, &ostype, 0, 327 CTL_KERN, KERN_OSTYPE, CTL_EOL); 328 sysctl_createv(clog, 0, NULL, NULL, 329 CTLFLAG_PERMANENT, 330 CTLTYPE_STRING, "osrelease", 331 SYSCTL_DESCR("Operating system release"), 332 NULL, 0, &osrelease, 0, 333 CTL_KERN, KERN_OSRELEASE, CTL_EOL); 334 sysctl_createv(clog, 0, NULL, NULL, 335 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 336 CTLTYPE_INT, "osrevision", 337 SYSCTL_DESCR("Operating system revision"), 338 NULL, __NetBSD_Version__, NULL, 0, 339 CTL_KERN, KERN_OSREV, CTL_EOL); 340 sysctl_createv(clog, 0, NULL, NULL, 341 CTLFLAG_PERMANENT, 342 CTLTYPE_STRING, "version", 343 SYSCTL_DESCR("Kernel version"), 344 NULL, 0, &version, 0, 345 CTL_KERN, KERN_VERSION, CTL_EOL); 346 sysctl_createv(clog, 0, NULL, NULL, 347 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 348 CTLTYPE_INT, "maxvnodes", 349 SYSCTL_DESCR("Maximum number of vnodes"), 350 sysctl_kern_maxvnodes, 0, NULL, 0, 351 CTL_KERN, KERN_MAXVNODES, CTL_EOL); 352 sysctl_createv(clog, 0, NULL, NULL, 353 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 354 CTLTYPE_INT, "maxproc", 355 SYSCTL_DESCR("Maximum number of simultaneous processes"), 356 sysctl_kern_maxproc, 0, NULL, 0, 357 CTL_KERN, KERN_MAXPROC, CTL_EOL); 358 sysctl_createv(clog, 0, NULL, NULL, 359 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 360 CTLTYPE_INT, "maxfiles", 361 SYSCTL_DESCR("Maximum number of open files"), 362 NULL, 0, &maxfiles, 0, 363 CTL_KERN, KERN_MAXFILES, CTL_EOL); 364 sysctl_createv(clog, 0, NULL, NULL, 365 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 366 CTLTYPE_INT, "argmax", 367 SYSCTL_DESCR("Maximum number of bytes of arguments to " 368 "execve(2)"), 369 NULL, ARG_MAX, NULL, 0, 370 CTL_KERN, KERN_ARGMAX, CTL_EOL); 371 sysctl_createv(clog, 0, NULL, NULL, 372 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 373 CTLTYPE_STRING, "hostname", 374 SYSCTL_DESCR("System hostname"), 375 sysctl_setlen, 0, &hostname, MAXHOSTNAMELEN, 376 CTL_KERN, KERN_HOSTNAME, CTL_EOL); 377 sysctl_createv(clog, 0, NULL, NULL, 378 CTLFLAG_PERMANENT|CTLFLAG_READWRITE|CTLFLAG_HEX, 379 CTLTYPE_INT, "hostid", 380 SYSCTL_DESCR("System host ID number"), 381 sysctl_kern_hostid, 0, NULL, 0, 382 CTL_KERN, KERN_HOSTID, CTL_EOL); 383 sysctl_createv(clog, 0, NULL, NULL, 384 CTLFLAG_PERMANENT, 385 CTLTYPE_STRUCT, "clockrate", 386 SYSCTL_DESCR("Kernel clock rates"), 387 sysctl_kern_clockrate, 0, NULL, 388 sizeof(struct clockinfo), 389 CTL_KERN, KERN_CLOCKRATE, CTL_EOL); 390 sysctl_createv(clog, 0, NULL, NULL, 391 CTLFLAG_PERMANENT, 392 CTLTYPE_INT, "hardclock_ticks", 393 SYSCTL_DESCR("Number of hardclock ticks"), 394 NULL, 0, &hardclock_ticks, sizeof(hardclock_ticks), 395 CTL_KERN, KERN_HARDCLOCK_TICKS, CTL_EOL); 396 sysctl_createv(clog, 0, NULL, NULL, 397 CTLFLAG_PERMANENT, 398 CTLTYPE_STRUCT, "vnode", 399 SYSCTL_DESCR("System vnode table"), 400 sysctl_kern_vnode, 0, NULL, 0, 401 CTL_KERN, KERN_VNODE, CTL_EOL); 402 sysctl_createv(clog, 0, NULL, NULL, 403 CTLFLAG_PERMANENT, 404 CTLTYPE_STRUCT, "file", 405 SYSCTL_DESCR("System open file table"), 406 sysctl_kern_file, 0, NULL, 0, 407 CTL_KERN, KERN_FILE, CTL_EOL); 408#ifndef GPROF 409 sysctl_createv(clog, 0, NULL, NULL, 410 CTLFLAG_PERMANENT, 411 CTLTYPE_NODE, "profiling", 412 SYSCTL_DESCR("Profiling information (not available)"), 413 sysctl_notavail, 0, NULL, 0, 414 CTL_KERN, KERN_PROF, CTL_EOL); 415#endif 416 sysctl_createv(clog, 0, NULL, NULL, 417 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 418 CTLTYPE_INT, "posix1version", 419 SYSCTL_DESCR("Version of ISO/IEC 9945 (POSIX 1003.1) " 420 "with which the operating system attempts " 421 "to comply"), 422 NULL, _POSIX_VERSION, NULL, 0, 423 CTL_KERN, KERN_POSIX1, CTL_EOL); 424 sysctl_createv(clog, 0, NULL, NULL, 425 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 426 CTLTYPE_INT, "ngroups", 427 SYSCTL_DESCR("Maximum number of supplemental groups"), 428 NULL, NGROUPS_MAX, NULL, 0, 429 CTL_KERN, KERN_NGROUPS, CTL_EOL); 430 sysctl_createv(clog, 0, NULL, NULL, 431 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 432 CTLTYPE_INT, "job_control", 433 SYSCTL_DESCR("Whether job control is available"), 434 NULL, 1, NULL, 0, 435 CTL_KERN, KERN_JOB_CONTROL, CTL_EOL); 436 sysctl_createv(clog, 0, NULL, NULL, 437 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 438 CTLTYPE_INT, "saved_ids", 439 SYSCTL_DESCR("Whether POSIX saved set-group/user ID is " 440 "available"), NULL, 441#ifdef _POSIX_SAVED_IDS 442 1, 443#else /* _POSIX_SAVED_IDS */ 444 0, 445#endif /* _POSIX_SAVED_IDS */ 446 NULL, 0, CTL_KERN, KERN_SAVED_IDS, CTL_EOL); 447 sysctl_createv(clog, 0, NULL, NULL, 448 CTLFLAG_PERMANENT, 449 CTLTYPE_STRUCT, "boottime", 450 SYSCTL_DESCR("System boot time"), 451 NULL, 0, &boottime, sizeof(boottime), 452 CTL_KERN, KERN_BOOTTIME, CTL_EOL); 453 sysctl_createv(clog, 0, NULL, NULL, 454 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 455 CTLTYPE_STRING, "domainname", 456 SYSCTL_DESCR("YP domain name"), 457 sysctl_setlen, 0, &domainname, MAXHOSTNAMELEN, 458 CTL_KERN, KERN_DOMAINNAME, CTL_EOL); 459 sysctl_createv(clog, 0, NULL, NULL, 460 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 461 CTLTYPE_INT, "maxpartitions", 462 SYSCTL_DESCR("Maximum number of partitions allowed per " 463 "disk"), 464 NULL, MAXPARTITIONS, NULL, 0, 465 CTL_KERN, KERN_MAXPARTITIONS, CTL_EOL); 466 sysctl_createv(clog, 0, NULL, NULL, 467 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 468 CTLTYPE_INT, "rawpartition", 469 SYSCTL_DESCR("Raw partition of a disk"), 470 NULL, RAW_PART, NULL, 0, 471 CTL_KERN, KERN_RAWPARTITION, CTL_EOL); 472 sysctl_createv(clog, 0, NULL, NULL, 473 CTLFLAG_PERMANENT, 474 CTLTYPE_STRUCT, "timex", NULL, 475 sysctl_notavail, 0, NULL, 0, 476 CTL_KERN, KERN_TIMEX, CTL_EOL); 477 sysctl_createv(clog, 0, NULL, NULL, 478 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 479 CTLTYPE_INT, "rtc_offset", 480 SYSCTL_DESCR("Offset of real time clock from UTC in " 481 "minutes"), 482 sysctl_kern_rtc_offset, 0, &rtc_offset, 0, 483 CTL_KERN, KERN_RTC_OFFSET, CTL_EOL); 484 sysctl_createv(clog, 0, NULL, NULL, 485 CTLFLAG_PERMANENT, 486 CTLTYPE_STRING, "root_device", 487 SYSCTL_DESCR("Name of the root device"), 488 sysctl_root_device, 0, NULL, 0, 489 CTL_KERN, KERN_ROOT_DEVICE, CTL_EOL); 490 sysctl_createv(clog, 0, NULL, NULL, 491 CTLFLAG_PERMANENT, 492 CTLTYPE_INT, "msgbufsize", 493 SYSCTL_DESCR("Size of the kernel message buffer"), 494 sysctl_msgbuf, 0, NULL, 0, 495 CTL_KERN, KERN_MSGBUFSIZE, CTL_EOL); 496 sysctl_createv(clog, 0, NULL, NULL, 497 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 498 CTLTYPE_INT, "fsync", 499 SYSCTL_DESCR("Whether the POSIX 1003.1b File " 500 "Synchronization Option is available on " 501 "this system"), 502 NULL, 1, NULL, 0, 503 CTL_KERN, KERN_FSYNC, CTL_EOL); 504 sysctl_createv(clog, 0, NULL, NULL, 505 CTLFLAG_PERMANENT, 506 CTLTYPE_NODE, "ipc", 507 SYSCTL_DESCR("SysV IPC options"), 508 NULL, 0, NULL, 0, 509 CTL_KERN, KERN_SYSVIPC, CTL_EOL); 510 sysctl_createv(clog, 0, NULL, NULL, 511 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 512 CTLTYPE_INT, "sysvmsg", 513 SYSCTL_DESCR("System V style message support available"), 514 NULL, 515#ifdef SYSVMSG 516 1, 517#else /* SYSVMSG */ 518 0, 519#endif /* SYSVMSG */ 520 NULL, 0, CTL_KERN, KERN_SYSVIPC, KERN_SYSVIPC_MSG, CTL_EOL); 521 sysctl_createv(clog, 0, NULL, NULL, 522 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 523 CTLTYPE_INT, "sysvsem", 524 SYSCTL_DESCR("System V style semaphore support " 525 "available"), NULL, 526#ifdef SYSVSEM 527 1, 528#else /* SYSVSEM */ 529 0, 530#endif /* SYSVSEM */ 531 NULL, 0, CTL_KERN, KERN_SYSVIPC, KERN_SYSVIPC_SEM, CTL_EOL); 532 sysctl_createv(clog, 0, NULL, NULL, 533 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 534 CTLTYPE_INT, "sysvshm", 535 SYSCTL_DESCR("System V style shared memory support " 536 "available"), NULL, 537#ifdef SYSVSHM 538 1, 539#else /* SYSVSHM */ 540 0, 541#endif /* SYSVSHM */ 542 NULL, 0, CTL_KERN, KERN_SYSVIPC, KERN_SYSVIPC_SHM, CTL_EOL); 543 sysctl_createv(clog, 0, NULL, NULL, 544 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 545 CTLTYPE_INT, "synchronized_io", 546 SYSCTL_DESCR("Whether the POSIX 1003.1b Synchronized " 547 "I/O Option is available on this system"), 548 NULL, 1, NULL, 0, 549 CTL_KERN, KERN_SYNCHRONIZED_IO, CTL_EOL); 550 sysctl_createv(clog, 0, NULL, NULL, 551 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 552 CTLTYPE_INT, "iov_max", 553 SYSCTL_DESCR("Maximum number of iovec structures per " 554 "process"), 555 NULL, IOV_MAX, NULL, 0, 556 CTL_KERN, KERN_IOV_MAX, CTL_EOL); 557 sysctl_createv(clog, 0, NULL, NULL, 558 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 559 CTLTYPE_INT, "mapped_files", 560 SYSCTL_DESCR("Whether the POSIX 1003.1b Memory Mapped " 561 "Files Option is available on this system"), 562 NULL, 1, NULL, 0, 563 CTL_KERN, KERN_MAPPED_FILES, CTL_EOL); 564 sysctl_createv(clog, 0, NULL, NULL, 565 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 566 CTLTYPE_INT, "memlock", 567 SYSCTL_DESCR("Whether the POSIX 1003.1b Process Memory " 568 "Locking Option is available on this " 569 "system"), 570 NULL, 1, NULL, 0, 571 CTL_KERN, KERN_MEMLOCK, CTL_EOL); 572 sysctl_createv(clog, 0, NULL, NULL, 573 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 574 CTLTYPE_INT, "memlock_range", 575 SYSCTL_DESCR("Whether the POSIX 1003.1b Range Memory " 576 "Locking Option is available on this " 577 "system"), 578 NULL, 1, NULL, 0, 579 CTL_KERN, KERN_MEMLOCK_RANGE, CTL_EOL); 580 sysctl_createv(clog, 0, NULL, NULL, 581 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 582 CTLTYPE_INT, "memory_protection", 583 SYSCTL_DESCR("Whether the POSIX 1003.1b Memory " 584 "Protection Option is available on this " 585 "system"), 586 NULL, 1, NULL, 0, 587 CTL_KERN, KERN_MEMORY_PROTECTION, CTL_EOL); 588 sysctl_createv(clog, 0, NULL, NULL, 589 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 590 CTLTYPE_INT, "login_name_max", 591 SYSCTL_DESCR("Maximum login name length"), 592 NULL, LOGIN_NAME_MAX, NULL, 0, 593 CTL_KERN, KERN_LOGIN_NAME_MAX, CTL_EOL); 594 sysctl_createv(clog, 0, NULL, NULL, 595 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 596 CTLTYPE_STRING, "defcorename", 597 SYSCTL_DESCR("Default core file name"), 598 sysctl_kern_defcorename, 0, defcorename, MAXPATHLEN, 599 CTL_KERN, KERN_DEFCORENAME, CTL_EOL); 600 sysctl_createv(clog, 0, NULL, NULL, 601 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 602 CTLTYPE_INT, "logsigexit", 603 SYSCTL_DESCR("Log process exit when caused by signals"), 604 NULL, 0, &kern_logsigexit, 0, 605 CTL_KERN, KERN_LOGSIGEXIT, CTL_EOL); 606 sysctl_createv(clog, 0, NULL, NULL, 607 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 608 CTLTYPE_INT, "fscale", 609 SYSCTL_DESCR("Kernel fixed-point scale factor"), 610 NULL, FSCALE, NULL, 0, 611 CTL_KERN, KERN_FSCALE, CTL_EOL); 612 sysctl_createv(clog, 0, NULL, NULL, 613 CTLFLAG_PERMANENT, 614 CTLTYPE_INT, "ccpu", 615 SYSCTL_DESCR("Scheduler exponential decay value"), 616 NULL, 0, &ccpu, 0, 617 CTL_KERN, KERN_CCPU, CTL_EOL); 618 sysctl_createv(clog, 0, NULL, NULL, 619 CTLFLAG_PERMANENT, 620 CTLTYPE_STRUCT, "cp_time", 621 SYSCTL_DESCR("Clock ticks spent in different CPU states"), 622 sysctl_kern_cptime, 0, NULL, 0, 623 CTL_KERN, KERN_CP_TIME, CTL_EOL); 624 sysctl_createv(clog, 0, NULL, NULL, 625 CTLFLAG_PERMANENT, 626 CTLTYPE_INT, "msgbuf", 627 SYSCTL_DESCR("Kernel message buffer"), 628 sysctl_msgbuf, 0, NULL, 0, 629 CTL_KERN, KERN_MSGBUF, CTL_EOL); 630 sysctl_createv(clog, 0, NULL, NULL, 631 CTLFLAG_PERMANENT, 632 CTLTYPE_STRUCT, "consdev", 633 SYSCTL_DESCR("Console device"), 634 sysctl_consdev, 0, NULL, sizeof(dev_t), 635 CTL_KERN, KERN_CONSDEV, CTL_EOL); 636#if NPTY > 0 637 sysctl_createv(clog, 0, NULL, NULL, 638 CTLFLAG_PERMANENT, 639 CTLTYPE_INT, "maxptys", 640 SYSCTL_DESCR("Maximum number of pseudo-ttys"), 641 sysctl_kern_maxptys, 0, NULL, 0, 642 CTL_KERN, KERN_MAXPTYS, CTL_EOL); 643#endif /* NPTY > 0 */ 644 sysctl_createv(clog, 0, NULL, NULL, 645 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 646 CTLTYPE_INT, "maxphys", 647 SYSCTL_DESCR("Maximum raw I/O transfer size"), 648 NULL, MAXPHYS, NULL, 0, 649 CTL_KERN, KERN_MAXPHYS, CTL_EOL); 650 sysctl_createv(clog, 0, NULL, NULL, 651 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 652 CTLTYPE_INT, "sbmax", 653 SYSCTL_DESCR("Maximum socket buffer size"), 654 sysctl_kern_sbmax, 0, NULL, 0, 655 CTL_KERN, KERN_SBMAX, CTL_EOL); 656 sysctl_createv(clog, 0, NULL, NULL, 657 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 658 CTLTYPE_INT, "monotonic_clock", 659 SYSCTL_DESCR("Implementation version of the POSIX " 660 "1003.1b Monotonic Clock Option"), 661 /* XXX _POSIX_VERSION */ 662 NULL, _POSIX_MONOTONIC_CLOCK, NULL, 0, 663 CTL_KERN, KERN_MONOTONIC_CLOCK, CTL_EOL); 664 sysctl_createv(clog, 0, NULL, NULL, 665 CTLFLAG_PERMANENT, 666 CTLTYPE_INT, "urandom", 667 SYSCTL_DESCR("Random integer value"), 668 sysctl_kern_urnd, 0, NULL, 0, 669 CTL_KERN, KERN_URND, CTL_EOL); 670 sysctl_createv(clog, 0, NULL, NULL, 671 CTLFLAG_PERMANENT, 672 CTLTYPE_INT, "arandom", 673 SYSCTL_DESCR("n bytes of random data"), 674 sysctl_kern_arnd, 0, NULL, 0, 675 CTL_KERN, KERN_ARND, CTL_EOL); 676 sysctl_createv(clog, 0, NULL, NULL, 677 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 678 CTLTYPE_INT, "labelsector", 679 SYSCTL_DESCR("Sector number containing the disklabel"), 680 NULL, LABELSECTOR, NULL, 0, 681 CTL_KERN, KERN_LABELSECTOR, CTL_EOL); 682 sysctl_createv(clog, 0, NULL, NULL, 683 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 684 CTLTYPE_INT, "labeloffset", 685 SYSCTL_DESCR("Offset of the disklabel within the " 686 "sector"), 687 NULL, LABELOFFSET, NULL, 0, 688 CTL_KERN, KERN_LABELOFFSET, CTL_EOL); 689 sysctl_createv(clog, 0, NULL, NULL, 690 CTLFLAG_PERMANENT, 691 CTLTYPE_NODE, "lwp", 692 SYSCTL_DESCR("System-wide LWP information"), 693 sysctl_kern_lwp, 0, NULL, 0, 694 CTL_KERN, KERN_LWP, CTL_EOL); 695 sysctl_createv(clog, 0, NULL, NULL, 696 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 697 CTLTYPE_INT, "forkfsleep", 698 SYSCTL_DESCR("Milliseconds to sleep on fork failure due " 699 "to process limits"), 700 sysctl_kern_forkfsleep, 0, NULL, 0, 701 CTL_KERN, KERN_FORKFSLEEP, CTL_EOL); 702 sysctl_createv(clog, 0, NULL, NULL, 703 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 704 CTLTYPE_INT, "posix_threads", 705 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 706 "Threads option to which the system " 707 "attempts to conform"), 708 /* XXX _POSIX_VERSION */ 709 NULL, _POSIX_THREADS, NULL, 0, 710 CTL_KERN, KERN_POSIX_THREADS, CTL_EOL); 711 sysctl_createv(clog, 0, NULL, NULL, 712 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 713 CTLTYPE_INT, "posix_semaphores", 714 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 715 "Semaphores option to which the system " 716 "attempts to conform"), NULL, 717#ifdef P1003_1B_SEMAPHORE 718 200112, 719#else /* P1003_1B_SEMAPHORE */ 720 0, 721#endif /* P1003_1B_SEMAPHORE */ 722 NULL, 0, CTL_KERN, KERN_POSIX_SEMAPHORES, CTL_EOL); 723 sysctl_createv(clog, 0, NULL, NULL, 724 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 725 CTLTYPE_INT, "posix_barriers", 726 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 727 "Barriers option to which the system " 728 "attempts to conform"), 729 /* XXX _POSIX_VERSION */ 730 NULL, _POSIX_BARRIERS, NULL, 0, 731 CTL_KERN, KERN_POSIX_BARRIERS, CTL_EOL); 732 sysctl_createv(clog, 0, NULL, NULL, 733 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 734 CTLTYPE_INT, "posix_timers", 735 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 736 "Timers option to which the system " 737 "attempts to conform"), 738 /* XXX _POSIX_VERSION */ 739 NULL, _POSIX_TIMERS, NULL, 0, 740 CTL_KERN, KERN_POSIX_TIMERS, CTL_EOL); 741 sysctl_createv(clog, 0, NULL, NULL, 742 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 743 CTLTYPE_INT, "posix_spin_locks", 744 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its Spin " 745 "Locks option to which the system attempts " 746 "to conform"), 747 /* XXX _POSIX_VERSION */ 748 NULL, _POSIX_SPIN_LOCKS, NULL, 0, 749 CTL_KERN, KERN_POSIX_SPIN_LOCKS, CTL_EOL); 750 sysctl_createv(clog, 0, NULL, NULL, 751 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 752 CTLTYPE_INT, "posix_reader_writer_locks", 753 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 754 "Read-Write Locks option to which the " 755 "system attempts to conform"), 756 /* XXX _POSIX_VERSION */ 757 NULL, _POSIX_READER_WRITER_LOCKS, NULL, 0, 758 CTL_KERN, KERN_POSIX_READER_WRITER_LOCKS, CTL_EOL); 759 sysctl_createv(clog, 0, NULL, NULL, 760 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 761 CTLTYPE_INT, "dump_on_panic", 762 SYSCTL_DESCR("Perform a crash dump on system panic"), 763 NULL, 0, &dumponpanic, 0, 764 CTL_KERN, KERN_DUMP_ON_PANIC, CTL_EOL); 765#ifdef DIAGNOSTIC 766 sysctl_createv(clog, 0, NULL, NULL, 767 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 768 CTLTYPE_INT, "panic_now", 769 SYSCTL_DESCR("Trigger a panic"), 770 sysctl_kern_trigger_panic, 0, NULL, 0, 771 CTL_KERN, CTL_CREATE, CTL_EOL); 772#endif 773 sysctl_createv(clog, 0, NULL, NULL, 774 CTLFLAG_PERMANENT, 775 CTLTYPE_INT, "root_partition", 776 SYSCTL_DESCR("Root partition on the root device"), 777 sysctl_kern_root_partition, 0, NULL, 0, 778 CTL_KERN, KERN_ROOT_PARTITION, CTL_EOL); 779 sysctl_createv(clog, 0, NULL, NULL, 780 CTLFLAG_PERMANENT, 781 CTLTYPE_STRUCT, "drivers", 782 SYSCTL_DESCR("List of all drivers with block and " 783 "character device numbers"), 784 sysctl_kern_drivers, 0, NULL, 0, 785 CTL_KERN, KERN_DRIVERS, CTL_EOL); 786 sysctl_createv(clog, 0, NULL, NULL, 787 CTLFLAG_PERMANENT, 788 CTLTYPE_STRUCT, "file2", 789 SYSCTL_DESCR("System open file table"), 790 sysctl_kern_file2, 0, NULL, 0, 791 CTL_KERN, KERN_FILE2, CTL_EOL); 792 sysctl_createv(clog, 0, NULL, NULL, 793 CTLFLAG_PERMANENT, 794 CTLTYPE_STRUCT, "cp_id", 795 SYSCTL_DESCR("Mapping of CPU number to CPU id"), 796 sysctl_kern_cpid, 0, NULL, 0, 797 CTL_KERN, KERN_CP_ID, CTL_EOL); 798 sysctl_createv(clog, 0, NULL, &rnode, 799 CTLFLAG_PERMANENT, 800 CTLTYPE_NODE, "coredump", 801 SYSCTL_DESCR("Coredump settings."), 802 NULL, 0, NULL, 0, 803 CTL_KERN, CTL_CREATE, CTL_EOL); 804 sysctl_createv(clog, 0, &rnode, &rnode, 805 CTLFLAG_PERMANENT, 806 CTLTYPE_NODE, "setid", 807 SYSCTL_DESCR("Set-id processes' coredump settings."), 808 NULL, 0, NULL, 0, 809 CTL_CREATE, CTL_EOL); 810 sysctl_createv(clog, 0, &rnode, NULL, 811 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 812 CTLTYPE_INT, "dump", 813 SYSCTL_DESCR("Allow set-id processes to dump core."), 814 sysctl_security_setidcore, 0, &security_setidcore_dump, 815 sizeof(security_setidcore_dump), 816 CTL_CREATE, CTL_EOL); 817 sysctl_createv(clog, 0, &rnode, NULL, 818 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 819 CTLTYPE_STRING, "path", 820 SYSCTL_DESCR("Path pattern for set-id coredumps."), 821 sysctl_security_setidcorename, 0, 822 &security_setidcore_path, 823 sizeof(security_setidcore_path), 824 CTL_CREATE, CTL_EOL); 825 sysctl_createv(clog, 0, &rnode, NULL, 826 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 827 CTLTYPE_INT, "owner", 828 SYSCTL_DESCR("Owner id for set-id processes' cores."), 829 sysctl_security_setidcore, 0, &security_setidcore_owner, 830 0, 831 CTL_CREATE, CTL_EOL); 832 sysctl_createv(clog, 0, &rnode, NULL, 833 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 834 CTLTYPE_INT, "group", 835 SYSCTL_DESCR("Group id for set-id processes' cores."), 836 sysctl_security_setidcore, 0, &security_setidcore_group, 837 0, 838 CTL_CREATE, CTL_EOL); 839 sysctl_createv(clog, 0, &rnode, NULL, 840 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 841 CTLTYPE_INT, "mode", 842 SYSCTL_DESCR("Mode for set-id processes' cores."), 843 sysctl_security_setidcore, 0, &security_setidcore_mode, 844 0, 845 CTL_CREATE, CTL_EOL); 846 sysctl_createv(clog, 0, NULL, NULL, 847 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 848 CTLTYPE_INT, "no_sa_support", 849 SYSCTL_DESCR("0 if the kernel supports SA, otherwise it doesn't"), 850 NULL, 1, NULL, 0, 851 CTL_KERN, CTL_CREATE, CTL_EOL); 852} 853 854SYSCTL_SETUP(sysctl_kern_proc_setup, 855 "sysctl kern.proc/proc2/proc_args subtree setup") 856{ 857 858 sysctl_createv(clog, 0, NULL, NULL, 859 CTLFLAG_PERMANENT, 860 CTLTYPE_NODE, "kern", NULL, 861 NULL, 0, NULL, 0, 862 CTL_KERN, CTL_EOL); 863 864 sysctl_createv(clog, 0, NULL, NULL, 865 CTLFLAG_PERMANENT, 866 CTLTYPE_NODE, "proc", 867 SYSCTL_DESCR("System-wide process information"), 868 sysctl_doeproc, 0, NULL, 0, 869 CTL_KERN, KERN_PROC, CTL_EOL); 870 sysctl_createv(clog, 0, NULL, NULL, 871 CTLFLAG_PERMANENT, 872 CTLTYPE_NODE, "proc2", 873 SYSCTL_DESCR("Machine-independent process information"), 874 sysctl_doeproc, 0, NULL, 0, 875 CTL_KERN, KERN_PROC2, CTL_EOL); 876 sysctl_createv(clog, 0, NULL, NULL, 877 CTLFLAG_PERMANENT, 878 CTLTYPE_NODE, "proc_args", 879 SYSCTL_DESCR("Process argument information"), 880 sysctl_kern_proc_args, 0, NULL, 0, 881 CTL_KERN, KERN_PROC_ARGS, CTL_EOL); 882 883 /* 884 "nodes" under these: 885 886 KERN_PROC_ALL 887 KERN_PROC_PID pid 888 KERN_PROC_PGRP pgrp 889 KERN_PROC_SESSION sess 890 KERN_PROC_TTY tty 891 KERN_PROC_UID uid 892 KERN_PROC_RUID uid 893 KERN_PROC_GID gid 894 KERN_PROC_RGID gid 895 896 all in all, probably not worth the effort... 897 */ 898} 899 900SYSCTL_SETUP(sysctl_hw_setup, "sysctl hw subtree setup") 901{ 902 u_int u; 903 u_quad_t q; 904 905 sysctl_createv(clog, 0, NULL, NULL, 906 CTLFLAG_PERMANENT, 907 CTLTYPE_NODE, "hw", NULL, 908 NULL, 0, NULL, 0, 909 CTL_HW, CTL_EOL); 910 911 sysctl_createv(clog, 0, NULL, NULL, 912 CTLFLAG_PERMANENT, 913 CTLTYPE_STRING, "machine", 914 SYSCTL_DESCR("Machine class"), 915 NULL, 0, machine, 0, 916 CTL_HW, HW_MACHINE, CTL_EOL); 917 sysctl_createv(clog, 0, NULL, NULL, 918 CTLFLAG_PERMANENT, 919 CTLTYPE_STRING, "model", 920 SYSCTL_DESCR("Machine model"), 921 NULL, 0, cpu_model, 0, 922 CTL_HW, HW_MODEL, CTL_EOL); 923 sysctl_createv(clog, 0, NULL, NULL, 924 CTLFLAG_PERMANENT, 925 CTLTYPE_INT, "ncpu", 926 SYSCTL_DESCR("Number of CPUs configured"), 927 NULL, 0, &ncpu, 0, 928 CTL_HW, HW_NCPU, CTL_EOL); 929 sysctl_createv(clog, 0, NULL, NULL, 930 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 931 CTLTYPE_INT, "byteorder", 932 SYSCTL_DESCR("System byte order"), 933 NULL, BYTE_ORDER, NULL, 0, 934 CTL_HW, HW_BYTEORDER, CTL_EOL); 935 u = ((u_int)physmem > (UINT_MAX / PAGE_SIZE)) ? 936 UINT_MAX : physmem * PAGE_SIZE; 937 sysctl_createv(clog, 0, NULL, NULL, 938 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 939 CTLTYPE_INT, "physmem", 940 SYSCTL_DESCR("Bytes of physical memory"), 941 NULL, u, NULL, 0, 942 CTL_HW, HW_PHYSMEM, CTL_EOL); 943 sysctl_createv(clog, 0, NULL, NULL, 944 CTLFLAG_PERMANENT, 945 CTLTYPE_INT, "usermem", 946 SYSCTL_DESCR("Bytes of non-kernel memory"), 947 sysctl_hw_usermem, 0, NULL, 0, 948 CTL_HW, HW_USERMEM, CTL_EOL); 949 sysctl_createv(clog, 0, NULL, NULL, 950 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 951 CTLTYPE_INT, "pagesize", 952 SYSCTL_DESCR("Software page size"), 953 NULL, PAGE_SIZE, NULL, 0, 954 CTL_HW, HW_PAGESIZE, CTL_EOL); 955 sysctl_createv(clog, 0, NULL, NULL, 956 CTLFLAG_PERMANENT, 957 CTLTYPE_STRING, "machine_arch", 958 SYSCTL_DESCR("Machine CPU class"), 959 NULL, 0, machine_arch, 0, 960 CTL_HW, HW_MACHINE_ARCH, CTL_EOL); 961 sysctl_createv(clog, 0, NULL, NULL, 962 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 963 CTLTYPE_INT, "alignbytes", 964 SYSCTL_DESCR("Alignment constraint for all possible " 965 "data types"), 966 NULL, ALIGNBYTES, NULL, 0, 967 CTL_HW, HW_ALIGNBYTES, CTL_EOL); 968 sysctl_createv(clog, 0, NULL, NULL, 969 CTLFLAG_PERMANENT|CTLFLAG_READWRITE|CTLFLAG_HEX, 970 CTLTYPE_STRING, "cnmagic", 971 SYSCTL_DESCR("Console magic key sequence"), 972 sysctl_hw_cnmagic, 0, NULL, CNS_LEN, 973 CTL_HW, HW_CNMAGIC, CTL_EOL); 974 q = (u_quad_t)physmem * PAGE_SIZE; 975 sysctl_createv(clog, 0, NULL, NULL, 976 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 977 CTLTYPE_QUAD, "physmem64", 978 SYSCTL_DESCR("Bytes of physical memory"), 979 NULL, q, NULL, 0, 980 CTL_HW, HW_PHYSMEM64, CTL_EOL); 981 sysctl_createv(clog, 0, NULL, NULL, 982 CTLFLAG_PERMANENT, 983 CTLTYPE_QUAD, "usermem64", 984 SYSCTL_DESCR("Bytes of non-kernel memory"), 985 sysctl_hw_usermem, 0, NULL, 0, 986 CTL_HW, HW_USERMEM64, CTL_EOL); 987 sysctl_createv(clog, 0, NULL, NULL, 988 CTLFLAG_PERMANENT, 989 CTLTYPE_INT, "ncpuonline", 990 SYSCTL_DESCR("Number of CPUs online"), 991 NULL, 0, &ncpuonline, 0, 992 CTL_HW, HW_NCPUONLINE, CTL_EOL); 993} 994 995#ifdef DEBUG 996/* 997 * Debugging related system variables. 998 */ 999struct ctldebug /* debug0, */ /* debug1, */ debug2, debug3, debug4; 1000struct ctldebug debug5, debug6, debug7, debug8, debug9; 1001struct ctldebug debug10, debug11, debug12, debug13, debug14; 1002struct ctldebug debug15, debug16, debug17, debug18, debug19; 1003static struct ctldebug *debugvars[CTL_DEBUG_MAXID] = { 1004 &debug0, &debug1, &debug2, &debug3, &debug4, 1005 &debug5, &debug6, &debug7, &debug8, &debug9, 1006 &debug10, &debug11, &debug12, &debug13, &debug14, 1007 &debug15, &debug16, &debug17, &debug18, &debug19, 1008}; 1009 1010/* 1011 * this setup routine is a replacement for debug_sysctl() 1012 * 1013 * note that it creates several nodes per defined debug variable 1014 */ 1015SYSCTL_SETUP(sysctl_debug_setup, "sysctl debug subtree setup") 1016{ 1017 struct ctldebug *cdp; 1018 char nodename[20]; 1019 int i; 1020 1021 /* 1022 * two ways here: 1023 * 1024 * the "old" way (debug.name -> value) which was emulated by 1025 * the sysctl(8) binary 1026 * 1027 * the new way, which the sysctl(8) binary was actually using 1028 1029 node debug 1030 node debug.0 1031 string debug.0.name 1032 int debug.0.value 1033 int debug.name 1034 1035 */ 1036 1037 sysctl_createv(clog, 0, NULL, NULL, 1038 CTLFLAG_PERMANENT, 1039 CTLTYPE_NODE, "debug", NULL, 1040 NULL, 0, NULL, 0, 1041 CTL_DEBUG, CTL_EOL); 1042 1043 for (i = 0; i < CTL_DEBUG_MAXID; i++) { 1044 cdp = debugvars[i]; 1045 if (cdp->debugname == NULL || cdp->debugvar == NULL) 1046 continue; 1047 1048 snprintf(nodename, sizeof(nodename), "debug%d", i); 1049 sysctl_createv(clog, 0, NULL, NULL, 1050 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 1051 CTLTYPE_NODE, nodename, NULL, 1052 NULL, 0, NULL, 0, 1053 CTL_DEBUG, i, CTL_EOL); 1054 sysctl_createv(clog, 0, NULL, NULL, 1055 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 1056 CTLTYPE_STRING, "name", NULL, 1057 /*XXXUNCONST*/ 1058 NULL, 0, __UNCONST(cdp->debugname), 0, 1059 CTL_DEBUG, i, CTL_DEBUG_NAME, CTL_EOL); 1060 sysctl_createv(clog, 0, NULL, NULL, 1061 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 1062 CTLTYPE_INT, "value", NULL, 1063 NULL, 0, cdp->debugvar, 0, 1064 CTL_DEBUG, i, CTL_DEBUG_VALUE, CTL_EOL); 1065 sysctl_createv(clog, 0, NULL, NULL, 1066 CTLFLAG_PERMANENT, 1067 CTLTYPE_INT, cdp->debugname, NULL, 1068 NULL, 0, cdp->debugvar, 0, 1069 CTL_DEBUG, CTL_CREATE, CTL_EOL); 1070 } 1071} 1072#endif /* DEBUG */ 1073 1074/* 1075 * ******************************************************************** 1076 * section 2: private node-specific helper routines. 1077 * ******************************************************************** 1078 */ 1079 1080#ifdef DIAGNOSTIC 1081static int 1082sysctl_kern_trigger_panic(SYSCTLFN_ARGS) 1083{ 1084 int newtrig, error; 1085 struct sysctlnode node; 1086 1087 newtrig = 0; 1088 node = *rnode; 1089 node.sysctl_data = &newtrig; 1090 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1091 if (error || newp == NULL) 1092 return (error); 1093 1094 if (newtrig != 0) 1095 panic("Panic triggered"); 1096 1097 return (error); 1098} 1099#endif 1100 1101/* 1102 * sysctl helper routine for kern.maxvnodes. Drain vnodes if 1103 * new value is lower than desiredvnodes and then calls reinit 1104 * routines that needs to adjust to the new value. 1105 */ 1106static int 1107sysctl_kern_maxvnodes(SYSCTLFN_ARGS) 1108{ 1109 int error, new_vnodes, old_vnodes; 1110 struct sysctlnode node; 1111 1112 new_vnodes = desiredvnodes; 1113 node = *rnode; 1114 node.sysctl_data = &new_vnodes; 1115 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1116 if (error || newp == NULL) 1117 return (error); 1118 1119 old_vnodes = desiredvnodes; 1120 desiredvnodes = new_vnodes; 1121 if (new_vnodes < old_vnodes) { 1122 error = vfs_drainvnodes(new_vnodes, l); 1123 if (error) { 1124 desiredvnodes = old_vnodes; 1125 return (error); 1126 } 1127 } 1128 vfs_reinit(); 1129 nchreinit(); 1130 1131 return (0); 1132} 1133 1134/* 1135 * sysctl helper routine for rtc_offset - set time after changes 1136 */ 1137static int 1138sysctl_kern_rtc_offset(SYSCTLFN_ARGS) 1139{ 1140 struct timespec ts, delta; 1141 int error, new_rtc_offset; 1142 struct sysctlnode node; 1143 1144 new_rtc_offset = rtc_offset; 1145 node = *rnode; 1146 node.sysctl_data = &new_rtc_offset; 1147 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1148 if (error || newp == NULL) 1149 return (error); 1150 1151 if (kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_TIME, 1152 KAUTH_REQ_SYSTEM_TIME_RTCOFFSET, 1153 (void *)(u_long)new_rtc_offset, NULL, NULL)) 1154 return (EPERM); 1155 if (rtc_offset == new_rtc_offset) 1156 return (0); 1157 1158 /* if we change the offset, adjust the time */ 1159 nanotime(&ts); 1160 delta.tv_sec = 60 * (new_rtc_offset - rtc_offset); 1161 delta.tv_nsec = 0; 1162 timespecadd(&ts, &delta, &ts); 1163 rtc_offset = new_rtc_offset; 1164 settime(l->l_proc, &ts); 1165 1166 return (0); 1167} 1168 1169/* 1170 * sysctl helper routine for kern.maxproc. Ensures that the new 1171 * values are not too low or too high. 1172 */ 1173static int 1174sysctl_kern_maxproc(SYSCTLFN_ARGS) 1175{ 1176 int error, nmaxproc; 1177 struct sysctlnode node; 1178 1179 nmaxproc = maxproc; 1180 node = *rnode; 1181 node.sysctl_data = &nmaxproc; 1182 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1183 if (error || newp == NULL) 1184 return (error); 1185 1186 if (nmaxproc < 0 || nmaxproc >= PID_MAX) 1187 return (EINVAL); 1188#ifdef __HAVE_CPU_MAXPROC 1189 if (nmaxproc > cpu_maxproc()) 1190 return (EINVAL); 1191#endif 1192 maxproc = nmaxproc; 1193 1194 return (0); 1195} 1196 1197/* 1198 * sysctl helper function for kern.hostid. The hostid is a long, but 1199 * we export it as an int, so we need to give it a little help. 1200 */ 1201static int 1202sysctl_kern_hostid(SYSCTLFN_ARGS) 1203{ 1204 int error, inthostid; 1205 struct sysctlnode node; 1206 1207 inthostid = hostid; /* XXX assumes sizeof int <= sizeof long */ 1208 node = *rnode; 1209 node.sysctl_data = &inthostid; 1210 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1211 if (error || newp == NULL) 1212 return (error); 1213 1214 hostid = (unsigned)inthostid; 1215 1216 return (0); 1217} 1218 1219/* 1220 * sysctl helper function for kern.hostname and kern.domainnname. 1221 * resets the relevant recorded length when the underlying name is 1222 * changed. 1223 */ 1224static int 1225sysctl_setlen(SYSCTLFN_ARGS) 1226{ 1227 int error; 1228 1229 error = sysctl_lookup(SYSCTLFN_CALL(rnode)); 1230 if (error || newp == NULL) 1231 return (error); 1232 1233 switch (rnode->sysctl_num) { 1234 case KERN_HOSTNAME: 1235 hostnamelen = strlen((const char*)rnode->sysctl_data); 1236 break; 1237 case KERN_DOMAINNAME: 1238 domainnamelen = strlen((const char*)rnode->sysctl_data); 1239 break; 1240 } 1241 1242 return (0); 1243} 1244 1245/* 1246 * sysctl helper routine for kern.clockrate. Assembles a struct on 1247 * the fly to be returned to the caller. 1248 */ 1249static int 1250sysctl_kern_clockrate(SYSCTLFN_ARGS) 1251{ 1252 struct clockinfo clkinfo; 1253 struct sysctlnode node; 1254 1255 clkinfo.tick = tick; 1256 clkinfo.tickadj = tickadj; 1257 clkinfo.hz = hz; 1258 clkinfo.profhz = profhz; 1259 clkinfo.stathz = stathz ? stathz : hz; 1260 1261 node = *rnode; 1262 node.sysctl_data = &clkinfo; 1263 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1264} 1265 1266 1267/* 1268 * sysctl helper routine for kern.file pseudo-subtree. 1269 */ 1270static int 1271sysctl_kern_file(SYSCTLFN_ARGS) 1272{ 1273 int error; 1274 size_t buflen; 1275 struct file *fp; 1276 char *start, *where; 1277 1278 start = where = oldp; 1279 buflen = *oldlenp; 1280 if (where == NULL) { 1281 /* 1282 * overestimate by 10 files 1283 */ 1284 *oldlenp = sizeof(filehead) + (nfiles + 10) * sizeof(struct file); 1285 return (0); 1286 } 1287 1288 /* 1289 * first dcopyout filehead 1290 */ 1291 if (buflen < sizeof(filehead)) { 1292 *oldlenp = 0; 1293 return (0); 1294 } 1295 error = dcopyout(l, &filehead, where, sizeof(filehead)); 1296 if (error) 1297 return (error); 1298 buflen -= sizeof(filehead); 1299 where += sizeof(filehead); 1300 1301 /* 1302 * followed by an array of file structures 1303 */ 1304 LIST_FOREACH(fp, &filehead, f_list) { 1305 if (kauth_authorize_generic(l->l_cred, 1306 KAUTH_GENERIC_CANSEE, fp->f_cred) != 0) 1307 continue; 1308 if (buflen < sizeof(struct file)) { 1309 *oldlenp = where - start; 1310 return (ENOMEM); 1311 } 1312 error = dcopyout(l, fp, where, sizeof(struct file)); 1313 if (error) 1314 return (error); 1315 buflen -= sizeof(struct file); 1316 where += sizeof(struct file); 1317 } 1318 *oldlenp = where - start; 1319 return (0); 1320} 1321 1322/* 1323 * sysctl helper routine for kern.msgbufsize and kern.msgbuf. For the 1324 * former it merely checks the message buffer is set up. For the latter, 1325 * it also copies out the data if necessary. 1326 */ 1327static int 1328sysctl_msgbuf(SYSCTLFN_ARGS) 1329{ 1330 char *where = oldp; 1331 size_t len, maxlen; 1332 long beg, end; 1333 int error; 1334 1335 if (!msgbufenabled || msgbufp->msg_magic != MSG_MAGIC) { 1336 msgbufenabled = 0; 1337 return (ENXIO); 1338 } 1339 1340 switch (rnode->sysctl_num) { 1341 case KERN_MSGBUFSIZE: { 1342 struct sysctlnode node = *rnode; 1343 int msg_bufs = (int)msgbufp->msg_bufs; 1344 node.sysctl_data = &msg_bufs; 1345 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1346 } 1347 case KERN_MSGBUF: 1348 break; 1349 default: 1350 return (EOPNOTSUPP); 1351 } 1352 1353 if (newp != NULL) 1354 return (EPERM); 1355 1356 if (oldp == NULL) { 1357 /* always return full buffer size */ 1358 *oldlenp = msgbufp->msg_bufs; 1359 return (0); 1360 } 1361 1362 error = 0; 1363 maxlen = MIN(msgbufp->msg_bufs, *oldlenp); 1364 1365 /* 1366 * First, copy from the write pointer to the end of 1367 * message buffer. 1368 */ 1369 beg = msgbufp->msg_bufx; 1370 end = msgbufp->msg_bufs; 1371 while (maxlen > 0) { 1372 len = MIN(end - beg, maxlen); 1373 if (len == 0) 1374 break; 1375 error = dcopyout(l, &msgbufp->msg_bufc[beg], where, len); 1376 if (error) 1377 break; 1378 where += len; 1379 maxlen -= len; 1380 1381 /* 1382 * ... then, copy from the beginning of message buffer to 1383 * the write pointer. 1384 */ 1385 beg = 0; 1386 end = msgbufp->msg_bufx; 1387 } 1388 1389 return (error); 1390} 1391 1392/* 1393 * sysctl helper routine for kern.defcorename. In the case of a new 1394 * string being assigned, check that it's not a zero-length string. 1395 * (XXX the check in -current doesn't work, but do we really care?) 1396 */ 1397static int 1398sysctl_kern_defcorename(SYSCTLFN_ARGS) 1399{ 1400 int error; 1401 char *newcorename; 1402 struct sysctlnode node; 1403 1404 newcorename = PNBUF_GET(); 1405 node = *rnode; 1406 node.sysctl_data = &newcorename[0]; 1407 memcpy(node.sysctl_data, rnode->sysctl_data, MAXPATHLEN); 1408 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1409 if (error || newp == NULL) { 1410 goto done; 1411 } 1412 1413 /* 1414 * when sysctl_lookup() deals with a string, it's guaranteed 1415 * to come back nul terminated. So there. :) 1416 */ 1417 if (strlen(newcorename) == 0) { 1418 error = EINVAL; 1419 } else { 1420 memcpy(rnode->sysctl_data, node.sysctl_data, MAXPATHLEN); 1421 error = 0; 1422 } 1423done: 1424 PNBUF_PUT(newcorename); 1425 return error; 1426} 1427 1428/* 1429 * sysctl helper routine for kern.cp_time node. Adds up cpu time 1430 * across all cpus. 1431 */ 1432static int 1433sysctl_kern_cptime(SYSCTLFN_ARGS) 1434{ 1435 struct sysctlnode node = *rnode; 1436 1437#ifndef MULTIPROCESSOR 1438 1439 if (namelen == 1) { 1440 if (name[0] != 0) 1441 return (ENOENT); 1442 /* 1443 * you're allowed to ask for the zero'th processor 1444 */ 1445 name++; 1446 namelen--; 1447 } 1448 node.sysctl_data = curcpu()->ci_schedstate.spc_cp_time; 1449 node.sysctl_size = sizeof(curcpu()->ci_schedstate.spc_cp_time); 1450 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1451 1452#else /* MULTIPROCESSOR */ 1453 1454 uint64_t *cp_time = NULL; 1455 int error, n = ncpu, i; 1456 struct cpu_info *ci; 1457 CPU_INFO_ITERATOR cii; 1458 1459 /* 1460 * if you specifically pass a buffer that is the size of the 1461 * sum, or if you are probing for the size, you get the "sum" 1462 * of cp_time (and the size thereof) across all processors. 1463 * 1464 * alternately, you can pass an additional mib number and get 1465 * cp_time for that particular processor. 1466 */ 1467 switch (namelen) { 1468 case 0: 1469 if (*oldlenp == sizeof(uint64_t) * CPUSTATES || oldp == NULL) { 1470 node.sysctl_size = sizeof(uint64_t) * CPUSTATES; 1471 n = -1; /* SUM */ 1472 } 1473 else { 1474 node.sysctl_size = n * sizeof(uint64_t) * CPUSTATES; 1475 n = -2; /* ALL */ 1476 } 1477 break; 1478 case 1: 1479 if (name[0] < 0 || name[0] >= n) 1480 return (ENOENT); /* ENOSUCHPROCESSOR */ 1481 node.sysctl_size = sizeof(uint64_t) * CPUSTATES; 1482 n = name[0]; 1483 /* 1484 * adjust these so that sysctl_lookup() will be happy 1485 */ 1486 name++; 1487 namelen--; 1488 break; 1489 default: 1490 return (EINVAL); 1491 } 1492 1493 cp_time = malloc(node.sysctl_size, M_TEMP, M_WAITOK|M_CANFAIL); 1494 if (cp_time == NULL) 1495 return (ENOMEM); 1496 node.sysctl_data = cp_time; 1497 memset(cp_time, 0, node.sysctl_size); 1498 1499 for (CPU_INFO_FOREACH(cii, ci)) { 1500 if (n <= 0) 1501 for (i = 0; i < CPUSTATES; i++) 1502 cp_time[i] += ci->ci_schedstate.spc_cp_time[i]; 1503 /* 1504 * if a specific processor was requested and we just 1505 * did it, we're done here 1506 */ 1507 if (n == 0) 1508 break; 1509 /* 1510 * if doing "all", skip to next cp_time set for next processor 1511 */ 1512 if (n == -2) 1513 cp_time += CPUSTATES; 1514 /* 1515 * if we're doing a specific processor, we're one 1516 * processor closer 1517 */ 1518 if (n > 0) 1519 n--; 1520 } 1521 1522 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1523 free(node.sysctl_data, M_TEMP); 1524 return (error); 1525 1526#endif /* MULTIPROCESSOR */ 1527} 1528 1529#if NPTY > 0 1530/* 1531 * sysctl helper routine for kern.maxptys. Ensures that any new value 1532 * is acceptable to the pty subsystem. 1533 */ 1534static int 1535sysctl_kern_maxptys(SYSCTLFN_ARGS) 1536{ 1537 int pty_maxptys(int, int); /* defined in kern/tty_pty.c */ 1538 int error, xmax; 1539 struct sysctlnode node; 1540 1541 /* get current value of maxptys */ 1542 xmax = pty_maxptys(0, 0); 1543 1544 node = *rnode; 1545 node.sysctl_data = &xmax; 1546 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1547 if (error || newp == NULL) 1548 return (error); 1549 1550 if (xmax != pty_maxptys(xmax, 1)) 1551 return (EINVAL); 1552 1553 return (0); 1554} 1555#endif /* NPTY > 0 */ 1556 1557/* 1558 * sysctl helper routine for kern.sbmax. Basically just ensures that 1559 * any new value is not too small. 1560 */ 1561static int 1562sysctl_kern_sbmax(SYSCTLFN_ARGS) 1563{ 1564 int error, new_sbmax; 1565 struct sysctlnode node; 1566 1567 new_sbmax = sb_max; 1568 node = *rnode; 1569 node.sysctl_data = &new_sbmax; 1570 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1571 if (error || newp == NULL) 1572 return (error); 1573 1574 error = sb_max_set(new_sbmax); 1575 1576 return (error); 1577} 1578 1579/* 1580 * sysctl helper routine for kern.urandom node. Picks a random number 1581 * for you. 1582 */ 1583static int 1584sysctl_kern_urnd(SYSCTLFN_ARGS) 1585{ 1586#if NRND > 0 1587 int v; 1588 1589 if (rnd_extract_data(&v, sizeof(v), RND_EXTRACT_ANY) == sizeof(v)) { 1590 struct sysctlnode node = *rnode; 1591 node.sysctl_data = &v; 1592 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1593 } 1594 else 1595 return (EIO); /*XXX*/ 1596#else 1597 return (EOPNOTSUPP); 1598#endif 1599} 1600 1601/* 1602 * sysctl helper routine for kern.arandom node. Picks a random number 1603 * for you. 1604 */ 1605static int 1606sysctl_kern_arnd(SYSCTLFN_ARGS) 1607{ 1608#if NRND > 0 1609 int error; 1610 void *v; 1611 struct sysctlnode node = *rnode; 1612 1613 if (*oldlenp == 0) 1614 return 0; 1615 if (*oldlenp > 8192) 1616 return E2BIG; 1617 1618 v = malloc(*oldlenp, M_TEMP, M_WAITOK); 1619 1620 arc4randbytes(v, *oldlenp); 1621 node.sysctl_data = v; 1622 node.sysctl_size = *oldlenp; 1623 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1624 free(v, M_TEMP); 1625 return error; 1626#else 1627 return (EOPNOTSUPP); 1628#endif 1629} 1630/* 1631 * sysctl helper routine to do kern.lwp.* work. 1632 */ 1633static int 1634sysctl_kern_lwp(SYSCTLFN_ARGS) 1635{ 1636 struct kinfo_lwp klwp; 1637 struct proc *p; 1638 struct lwp *l2; 1639 char *where, *dp; 1640 int pid, elem_size, elem_count; 1641 int buflen, needed, error; 1642 1643 if (namelen == 1 && name[0] == CTL_QUERY) 1644 return (sysctl_query(SYSCTLFN_CALL(rnode))); 1645 1646 dp = where = oldp; 1647 buflen = where != NULL ? *oldlenp : 0; 1648 error = needed = 0; 1649 1650 if (newp != NULL || namelen != 3) 1651 return (EINVAL); 1652 pid = name[0]; 1653 elem_size = name[1]; 1654 elem_count = name[2]; 1655 1656 mutex_enter(&proclist_lock); 1657 if (pid == -1) { 1658 LIST_FOREACH(l2, &alllwp, l_list) { 1659 if (buflen >= elem_size && elem_count > 0) { 1660 lwp_lock(l2); 1661 fill_lwp(l2, &klwp); 1662 lwp_unlock(l2); 1663 1664 /* 1665 * Copy out elem_size, but not larger than 1666 * the size of a struct kinfo_proc2. 1667 */ 1668 error = dcopyout(l, &klwp, dp, 1669 min(sizeof(klwp), elem_size)); 1670 if (error) 1671 goto cleanup; 1672 dp += elem_size; 1673 buflen -= elem_size; 1674 elem_count--; 1675 } 1676 needed += elem_size; 1677 } 1678 } else { 1679 p = p_find(pid, PFIND_LOCKED); 1680 if (p == NULL) { 1681 mutex_exit(&proclist_lock); 1682 return (ESRCH); 1683 } 1684 mutex_enter(&p->p_smutex); 1685 LIST_FOREACH(l2, &p->p_lwps, l_sibling) { 1686 if (buflen >= elem_size && elem_count > 0) { 1687 struct lwp *l3; 1688 1689 lwp_lock(l2); 1690 fill_lwp(l2, &klwp); 1691 lwp_unlock(l2); 1692 mutex_exit(&p->p_smutex); 1693 /* 1694 * Copy out elem_size, but not larger than 1695 * the size of a struct kinfo_proc2. 1696 */ 1697 error = dcopyout(l, &klwp, dp, 1698 min(sizeof(klwp), elem_size)); 1699 if (error) { 1700 goto cleanup; 1701 } 1702 mutex_enter(&p->p_smutex); 1703 LIST_FOREACH(l3, &p->p_lwps, l_sibling) { 1704 if (l2 == l3) 1705 break; 1706 } 1707 if (l3 == NULL) { 1708 mutex_exit(&p->p_smutex); 1709 error = EAGAIN; 1710 goto cleanup; 1711 } 1712 dp += elem_size; 1713 buflen -= elem_size; 1714 elem_count--; 1715 } 1716 needed += elem_size; 1717 } 1718 mutex_exit(&p->p_smutex); 1719 } 1720 mutex_exit(&proclist_lock); 1721 1722 if (where != NULL) { 1723 *oldlenp = dp - where; 1724 if (needed > *oldlenp) 1725 return (ENOMEM); 1726 } else { 1727 needed += KERN_LWPSLOP; 1728 *oldlenp = needed; 1729 } 1730 return (0); 1731 cleanup: 1732 mutex_exit(&proclist_lock); 1733 return (error); 1734} 1735 1736/* 1737 * sysctl helper routine for kern.forkfsleep node. Ensures that the 1738 * given value is not too large or two small, and is at least one 1739 * timer tick if not zero. 1740 */ 1741static int 1742sysctl_kern_forkfsleep(SYSCTLFN_ARGS) 1743{ 1744 /* userland sees value in ms, internally is in ticks */ 1745 extern int forkfsleep; /* defined in kern/kern_fork.c */ 1746 int error, timo, lsleep; 1747 struct sysctlnode node; 1748 1749 lsleep = forkfsleep * 1000 / hz; 1750 node = *rnode; 1751 node.sysctl_data = &lsleep; 1752 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1753 if (error || newp == NULL) 1754 return (error); 1755 1756 /* refuse negative values, and overly 'long time' */ 1757 if (lsleep < 0 || lsleep > MAXSLP * 1000) 1758 return (EINVAL); 1759 1760 timo = mstohz(lsleep); 1761 1762 /* if the interval is >0 ms && <1 tick, use 1 tick */ 1763 if (lsleep != 0 && timo == 0) 1764 forkfsleep = 1; 1765 else 1766 forkfsleep = timo; 1767 1768 return (0); 1769} 1770 1771/* 1772 * sysctl helper routine for kern.root_partition 1773 */ 1774static int 1775sysctl_kern_root_partition(SYSCTLFN_ARGS) 1776{ 1777 int rootpart = DISKPART(rootdev); 1778 struct sysctlnode node = *rnode; 1779 1780 node.sysctl_data = &rootpart; 1781 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1782} 1783 1784/* 1785 * sysctl helper function for kern.drivers 1786 */ 1787static int 1788sysctl_kern_drivers(SYSCTLFN_ARGS) 1789{ 1790 int error; 1791 size_t buflen; 1792 struct kinfo_drivers kd; 1793 char *start, *where; 1794 const char *dname; 1795 int i; 1796 extern struct devsw_conv *devsw_conv; 1797 extern int max_devsw_convs; 1798 1799 if (newp != NULL || namelen != 0) 1800 return (EINVAL); 1801 1802 start = where = oldp; 1803 buflen = *oldlenp; 1804 if (where == NULL) { 1805 *oldlenp = max_devsw_convs * sizeof kd; 1806 return 0; 1807 } 1808 1809 /* 1810 * An array of kinfo_drivers structures 1811 */ 1812 error = 0; 1813 for (i = 0; i < max_devsw_convs; i++) { 1814 dname = devsw_conv[i].d_name; 1815 if (dname == NULL) 1816 continue; 1817 if (buflen < sizeof kd) { 1818 error = ENOMEM; 1819 break; 1820 } 1821 memset(&kd, 0, sizeof(kd)); 1822 kd.d_bmajor = devsw_conv[i].d_bmajor; 1823 kd.d_cmajor = devsw_conv[i].d_cmajor; 1824 strlcpy(kd.d_name, dname, sizeof kd.d_name); 1825 error = dcopyout(l, &kd, where, sizeof kd); 1826 if (error != 0) 1827 break; 1828 buflen -= sizeof kd; 1829 where += sizeof kd; 1830 } 1831 *oldlenp = where - start; 1832 return error; 1833} 1834 1835/* 1836 * sysctl helper function for kern.file2 1837 */ 1838static int 1839sysctl_kern_file2(SYSCTLFN_ARGS) 1840{ 1841 struct proc *p; 1842 struct file *fp; 1843 struct filedesc *fd; 1844 struct kinfo_file kf; 1845 char *dp; 1846 u_int i, op; 1847 size_t len, needed, elem_size, out_size; 1848 int error, arg, elem_count; 1849 1850 if (namelen == 1 && name[0] == CTL_QUERY) 1851 return (sysctl_query(SYSCTLFN_CALL(rnode))); 1852 1853 if (namelen != 4) 1854 return (EINVAL); 1855 1856 error = 0; 1857 dp = oldp; 1858 len = (oldp != NULL) ? *oldlenp : 0; 1859 op = name[0]; 1860 arg = name[1]; 1861 elem_size = name[2]; 1862 elem_count = name[3]; 1863 out_size = MIN(sizeof(kf), elem_size); 1864 needed = 0; 1865 1866 if (elem_size < 1 || elem_count < 0) 1867 return (EINVAL); 1868 1869 switch (op) { 1870 case KERN_FILE_BYFILE: 1871 /* 1872 * doesn't use arg so it must be zero 1873 */ 1874 if (arg != 0) 1875 return (EINVAL); 1876 LIST_FOREACH(fp, &filehead, f_list) { 1877 if (kauth_authorize_generic(l->l_cred, 1878 KAUTH_GENERIC_CANSEE, fp->f_cred) != 0) 1879 continue; 1880 if (len >= elem_size && elem_count > 0) { 1881 fill_file(&kf, fp, NULL, 0); 1882 error = dcopyout(l, &kf, dp, out_size); 1883 if (error) 1884 break; 1885 dp += elem_size; 1886 len -= elem_size; 1887 } 1888 if (elem_count > 0) { 1889 needed += elem_size; 1890 if (elem_count != INT_MAX) 1891 elem_count--; 1892 } 1893 } 1894 break; 1895 case KERN_FILE_BYPID: 1896 if (arg < -1) 1897 /* -1 means all processes */ 1898 return (EINVAL); 1899 mutex_enter(&proclist_lock); 1900 PROCLIST_FOREACH(p, &allproc) { 1901 if (p->p_stat == SIDL) 1902 /* skip embryonic processes */ 1903 continue; 1904 if (kauth_authorize_process(l->l_cred, 1905 KAUTH_PROCESS_CANSEE, p, NULL, NULL, NULL) != 0) 1906 continue; 1907 if (arg > 0 && p->p_pid != arg) 1908 /* pick only the one we want */ 1909 /* XXX want 0 to mean "kernel files" */ 1910 continue; 1911 fd = p->p_fd; 1912 for (i = 0; i < fd->fd_nfiles; i++) { 1913 fp = fd->fd_ofiles[i]; 1914 if (fp == NULL || !FILE_IS_USABLE(fp)) 1915 continue; 1916 if (len >= elem_size && elem_count > 0) { 1917 fill_file(&kf, fd->fd_ofiles[i], 1918 p, i); 1919 error = dcopyout(l, &kf, dp, out_size); 1920 if (error) 1921 break; 1922 dp += elem_size; 1923 len -= elem_size; 1924 } 1925 if (elem_count > 0) { 1926 needed += elem_size; 1927 if (elem_count != INT_MAX) 1928 elem_count--; 1929 } 1930 } 1931 } 1932 mutex_exit(&proclist_lock); 1933 break; 1934 default: 1935 return (EINVAL); 1936 } 1937 1938 if (oldp == NULL) 1939 needed += KERN_FILESLOP * elem_size; 1940 *oldlenp = needed; 1941 1942 return (error); 1943} 1944 1945static void 1946fill_file(struct kinfo_file *kp, const struct file *fp, struct proc *p, int i) 1947{ 1948 1949 memset(kp, 0, sizeof(*kp)); 1950 1951 kp->ki_fileaddr = PTRTOUINT64(fp); 1952 kp->ki_flag = fp->f_flag; 1953 kp->ki_iflags = fp->f_iflags; 1954 kp->ki_ftype = fp->f_type; 1955 kp->ki_count = fp->f_count; 1956 kp->ki_msgcount = fp->f_msgcount; 1957 kp->ki_usecount = fp->f_usecount; 1958 kp->ki_fucred = PTRTOUINT64(fp->f_cred); 1959 kp->ki_fuid = kauth_cred_geteuid(fp->f_cred); 1960 kp->ki_fgid = kauth_cred_getegid(fp->f_cred); 1961 kp->ki_fops = PTRTOUINT64(fp->f_ops); 1962 kp->ki_foffset = fp->f_offset; 1963 kp->ki_fdata = PTRTOUINT64(fp->f_data); 1964 1965 /* vnode information to glue this file to something */ 1966 if (fp->f_type == DTYPE_VNODE) { 1967 struct vnode *vp = (struct vnode *)fp->f_data; 1968 1969 kp->ki_vun = PTRTOUINT64(vp->v_un.vu_socket); 1970 kp->ki_vsize = vp->v_size; 1971 kp->ki_vtype = vp->v_type; 1972 kp->ki_vtag = vp->v_tag; 1973 kp->ki_vdata = PTRTOUINT64(vp->v_data); 1974 } 1975 1976 /* process information when retrieved via KERN_FILE_BYPID */ 1977 if (p) { 1978 kp->ki_pid = p->p_pid; 1979 kp->ki_fd = i; 1980 kp->ki_ofileflags = p->p_fd->fd_ofileflags[i]; 1981 } 1982} 1983 1984static int 1985sysctl_doeproc(SYSCTLFN_ARGS) 1986{ 1987 struct eproc *eproc; 1988 struct kinfo_proc2 *kproc2; 1989 struct kinfo_proc *dp; 1990 struct proc *p; 1991 const struct proclist_desc *pd; 1992 char *where, *dp2; 1993 int type, op, arg; 1994 u_int elem_size, elem_count; 1995 size_t buflen, needed; 1996 int error; 1997 1998 if (namelen == 1 && name[0] == CTL_QUERY) 1999 return (sysctl_query(SYSCTLFN_CALL(rnode))); 2000 2001 dp = oldp; 2002 dp2 = where = oldp; 2003 buflen = where != NULL ? *oldlenp : 0; 2004 error = 0; 2005 needed = 0; 2006 type = rnode->sysctl_num; 2007 2008 if (type == KERN_PROC) { 2009 if (namelen != 2 && !(namelen == 1 && name[0] == KERN_PROC_ALL)) 2010 return (EINVAL); 2011 op = name[0]; 2012 if (op != KERN_PROC_ALL) 2013 arg = name[1]; 2014 else 2015 arg = 0; /* Quell compiler warning */ 2016 elem_size = elem_count = 0; /* Ditto */ 2017 } else { 2018 if (namelen != 4) 2019 return (EINVAL); 2020 op = name[0]; 2021 arg = name[1]; 2022 elem_size = name[2]; 2023 elem_count = name[3]; 2024 } 2025 2026 if (type == KERN_PROC) { 2027 eproc = malloc(sizeof(*eproc), M_TEMP, M_WAITOK); 2028 kproc2 = NULL; 2029 } else { 2030 eproc = NULL; 2031 kproc2 = malloc(sizeof(*kproc2), M_TEMP, M_WAITOK); 2032 } 2033 mutex_enter(&proclist_lock); 2034 2035 pd = proclists; 2036again: 2037 PROCLIST_FOREACH(p, pd->pd_list) { 2038 /* 2039 * Skip embryonic processes. 2040 */ 2041 if (p->p_stat == SIDL) 2042 continue; 2043 2044 if (kauth_authorize_process(l->l_cred, 2045 KAUTH_PROCESS_CANSEE, p, NULL, NULL, NULL) != 0) 2046 continue; 2047 2048 /* 2049 * TODO - make more efficient (see notes below). 2050 * do by session. 2051 */ 2052 switch (op) { 2053 2054 case KERN_PROC_PID: 2055 /* could do this with just a lookup */ 2056 if (p->p_pid != (pid_t)arg) 2057 continue; 2058 break; 2059 2060 case KERN_PROC_PGRP: 2061 /* could do this by traversing pgrp */ 2062 if (p->p_pgrp->pg_id != (pid_t)arg) 2063 continue; 2064 break; 2065 2066 case KERN_PROC_SESSION: 2067 if (p->p_session->s_sid != (pid_t)arg) 2068 continue; 2069 break; 2070 2071 case KERN_PROC_TTY: 2072 if (arg == (int) KERN_PROC_TTY_REVOKE) { 2073 if ((p->p_lflag & PL_CONTROLT) == 0 || 2074 p->p_session->s_ttyp == NULL || 2075 p->p_session->s_ttyvp != NULL) 2076 continue; 2077 } else if ((p->p_lflag & PL_CONTROLT) == 0 || 2078 p->p_session->s_ttyp == NULL) { 2079 if ((dev_t)arg != KERN_PROC_TTY_NODEV) 2080 continue; 2081 } else if (p->p_session->s_ttyp->t_dev != (dev_t)arg) 2082 continue; 2083 break; 2084 2085 case KERN_PROC_UID: 2086 if (kauth_cred_geteuid(p->p_cred) != (uid_t)arg) 2087 continue; 2088 break; 2089 2090 case KERN_PROC_RUID: 2091 if (kauth_cred_getuid(p->p_cred) != (uid_t)arg) 2092 continue; 2093 break; 2094 2095 case KERN_PROC_GID: 2096 if (kauth_cred_getegid(p->p_cred) != (uid_t)arg) 2097 continue; 2098 break; 2099 2100 case KERN_PROC_RGID: 2101 if (kauth_cred_getgid(p->p_cred) != (uid_t)arg) 2102 continue; 2103 break; 2104 2105 case KERN_PROC_ALL: 2106 /* allow everything */ 2107 break; 2108 2109 default: 2110 error = EINVAL; 2111 goto cleanup; 2112 } 2113 if (type == KERN_PROC) { 2114 if (buflen >= sizeof(struct kinfo_proc)) { 2115 fill_eproc(p, eproc); 2116 error = dcopyout(l, p, &dp->kp_proc, 2117 sizeof(struct proc)); 2118 if (error) 2119 goto cleanup; 2120 error = dcopyout(l, eproc, &dp->kp_eproc, 2121 sizeof(*eproc)); 2122 if (error) 2123 goto cleanup; 2124 dp++; 2125 buflen -= sizeof(struct kinfo_proc); 2126 } 2127 needed += sizeof(struct kinfo_proc); 2128 } else { /* KERN_PROC2 */ 2129 if (buflen >= elem_size && elem_count > 0) { 2130 fill_kproc2(p, kproc2); 2131 /* 2132 * Copy out elem_size, but not larger than 2133 * the size of a struct kinfo_proc2. 2134 */ 2135 error = dcopyout(l, kproc2, dp2, 2136 min(sizeof(*kproc2), elem_size)); 2137 if (error) 2138 goto cleanup; 2139 dp2 += elem_size; 2140 buflen -= elem_size; 2141 elem_count--; 2142 } 2143 needed += elem_size; 2144 } 2145 } 2146 pd++; 2147 if (pd->pd_list != NULL) 2148 goto again; 2149 mutex_exit(&proclist_lock); 2150 2151 if (where != NULL) { 2152 if (type == KERN_PROC) 2153 *oldlenp = (char *)dp - where; 2154 else 2155 *oldlenp = dp2 - where; 2156 if (needed > *oldlenp) { 2157 error = ENOMEM; 2158 goto out; 2159 } 2160 } else { 2161 needed += KERN_PROCSLOP; 2162 *oldlenp = needed; 2163 } 2164 if (kproc2) 2165 free(kproc2, M_TEMP); 2166 if (eproc) 2167 free(eproc, M_TEMP); 2168 return 0; 2169 cleanup: 2170 mutex_exit(&proclist_lock); 2171 out: 2172 if (kproc2) 2173 free(kproc2, M_TEMP); 2174 if (eproc) 2175 free(eproc, M_TEMP); 2176 return error; 2177} 2178 2179/* 2180 * sysctl helper routine for kern.proc_args pseudo-subtree. 2181 */ 2182static int 2183sysctl_kern_proc_args(SYSCTLFN_ARGS) 2184{ 2185 struct ps_strings pss; 2186 struct proc *p; 2187 size_t len, i; 2188 struct uio auio; 2189 struct iovec aiov; 2190 pid_t pid; 2191 int nargv, type, error; 2192 char *arg; 2193 char **argv = NULL; 2194 char *tmp; 2195 struct vmspace *vmspace; 2196 vaddr_t psstr_addr; 2197 vaddr_t offsetn; 2198 vaddr_t offsetv; 2199 2200 if (namelen == 1 && name[0] == CTL_QUERY) 2201 return (sysctl_query(SYSCTLFN_CALL(rnode))); 2202 2203 if (newp != NULL || namelen != 2) 2204 return (EINVAL); 2205 pid = name[0]; 2206 type = name[1]; 2207 2208 switch (type) { 2209 case KERN_PROC_ARGV: 2210 case KERN_PROC_NARGV: 2211 case KERN_PROC_ENV: 2212 case KERN_PROC_NENV: 2213 /* ok */ 2214 break; 2215 default: 2216 return (EINVAL); 2217 } 2218 2219 mutex_enter(&proclist_lock); 2220 2221 /* check pid */ 2222 if ((p = p_find(pid, PFIND_LOCKED)) == NULL) { 2223 error = EINVAL; 2224 goto out_locked; 2225 } 2226 2227 error = kauth_authorize_process(l->l_cred, 2228 KAUTH_PROCESS_CANSEE, p, NULL, NULL, NULL); 2229 if (error) { 2230 goto out_locked; 2231 } 2232 2233 /* only root or same user change look at the environment */ 2234 if (type == KERN_PROC_ENV || type == KERN_PROC_NENV) { 2235 if (kauth_authorize_generic(l->l_cred, KAUTH_GENERIC_ISSUSER, 2236 NULL) != 0) { 2237 if (kauth_cred_getuid(l->l_cred) != 2238 kauth_cred_getuid(p->p_cred) || 2239 kauth_cred_getuid(l->l_cred) != 2240 kauth_cred_getsvuid(p->p_cred)) { 2241 error = EPERM; 2242 goto out_locked; 2243 } 2244 } 2245 } 2246 2247 if (oldp == NULL) { 2248 if (type == KERN_PROC_NARGV || type == KERN_PROC_NENV) 2249 *oldlenp = sizeof (int); 2250 else 2251 *oldlenp = ARG_MAX; /* XXX XXX XXX */ 2252 error = 0; 2253 goto out_locked; 2254 } 2255 2256 /* 2257 * Zombies don't have a stack, so we can't read their psstrings. 2258 * System processes also don't have a user stack. 2259 */ 2260 if (P_ZOMBIE(p) || (p->p_flag & PK_SYSTEM) != 0) { 2261 error = EINVAL; 2262 goto out_locked; 2263 } 2264 2265 /* 2266 * Lock the process down in memory. 2267 */ 2268 /* XXXCDC: how should locking work here? */ 2269 if ((l->l_flag & LW_WEXIT) || (p->p_vmspace->vm_refcnt < 1)) { 2270 error = EFAULT; 2271 goto out_locked; 2272 } 2273 2274 psstr_addr = (vaddr_t)p->p_psstr; 2275 if (type == KERN_PROC_ARGV || type == KERN_PROC_NARGV) { 2276 offsetn = p->p_psnargv; 2277 offsetv = p->p_psargv; 2278 } else { 2279 offsetn = p->p_psnenv; 2280 offsetv = p->p_psenv; 2281 } 2282 vmspace = p->p_vmspace; 2283 vmspace->vm_refcnt++; /* XXX */ 2284 2285 mutex_exit(&proclist_lock); 2286 2287 /* 2288 * Allocate a temporary buffer to hold the arguments. 2289 */ 2290 arg = malloc(PAGE_SIZE, M_TEMP, M_WAITOK); 2291 2292 /* 2293 * Read in the ps_strings structure. 2294 */ 2295 aiov.iov_base = &pss; 2296 aiov.iov_len = sizeof(pss); 2297 auio.uio_iov = &aiov; 2298 auio.uio_iovcnt = 1; 2299 auio.uio_offset = psstr_addr; 2300 auio.uio_resid = sizeof(pss); 2301 auio.uio_rw = UIO_READ; 2302 UIO_SETUP_SYSSPACE(&auio); 2303 error = uvm_io(&vmspace->vm_map, &auio); 2304 if (error) 2305 goto done; 2306 2307 memcpy(&nargv, (char *)&pss + offsetn, sizeof(nargv)); 2308 if (type == KERN_PROC_NARGV || type == KERN_PROC_NENV) { 2309 error = dcopyout(l, &nargv, oldp, sizeof(nargv)); 2310 *oldlenp = sizeof(nargv); 2311 goto done; 2312 } 2313 /* 2314 * Now read the address of the argument vector. 2315 */ 2316 switch (type) { 2317 case KERN_PROC_ARGV: 2318 /* FALLTHROUGH */ 2319 case KERN_PROC_ENV: 2320 memcpy(&tmp, (char *)&pss + offsetv, sizeof(tmp)); 2321 break; 2322 default: 2323 return (EINVAL); 2324 } 2325 2326#ifdef COMPAT_NETBSD32 2327 if (p->p_flag & PK_32) 2328 len = sizeof(netbsd32_charp) * nargv; 2329 else 2330#endif 2331 len = sizeof(char *) * nargv; 2332 2333 argv = malloc(len, M_TEMP, M_WAITOK); 2334 2335 aiov.iov_base = argv; 2336 aiov.iov_len = len; 2337 auio.uio_iov = &aiov; 2338 auio.uio_iovcnt = 1; 2339 auio.uio_offset = (off_t)(unsigned long)tmp; 2340 auio.uio_resid = len; 2341 auio.uio_rw = UIO_READ; 2342 UIO_SETUP_SYSSPACE(&auio); 2343 error = uvm_io(&vmspace->vm_map, &auio); 2344 if (error) 2345 goto done; 2346 2347 /* 2348 * Now copy each string. 2349 */ 2350 len = 0; /* bytes written to user buffer */ 2351 for (i = 0; i < nargv; i++) { 2352 int finished = 0; 2353 vaddr_t base; 2354 size_t xlen; 2355 int j; 2356 2357#ifdef COMPAT_NETBSD32 2358 if (p->p_flag & PK_32) { 2359 netbsd32_charp *argv32; 2360 2361 argv32 = (netbsd32_charp *)argv; 2362 2363 base = (vaddr_t)NETBSD32PTR64(argv32[i]); 2364 } else 2365#endif 2366 base = (vaddr_t)argv[i]; 2367 2368 /* 2369 * The program has messed around with its arguments, 2370 * possibly deleting some, and replacing them with 2371 * NULL's. Treat this as the last argument and not 2372 * a failure. 2373 */ 2374 if (base == 0) 2375 break; 2376 2377 while (!finished) { 2378 xlen = PAGE_SIZE - (base & PAGE_MASK); 2379 2380 aiov.iov_base = arg; 2381 aiov.iov_len = PAGE_SIZE; 2382 auio.uio_iov = &aiov; 2383 auio.uio_iovcnt = 1; 2384 auio.uio_offset = base; 2385 auio.uio_resid = xlen; 2386 auio.uio_rw = UIO_READ; 2387 UIO_SETUP_SYSSPACE(&auio); 2388 error = uvm_io(&vmspace->vm_map, &auio); 2389 if (error) 2390 goto done; 2391 2392 /* Look for the end of the string */ 2393 for (j = 0; j < xlen; j++) { 2394 if (arg[j] == '\0') { 2395 xlen = j + 1; 2396 finished = 1; 2397 break; 2398 } 2399 } 2400 2401 /* Check for user buffer overflow */ 2402 if (len + xlen > *oldlenp) { 2403 finished = 1; 2404 if (len > *oldlenp) 2405 xlen = 0; 2406 else 2407 xlen = *oldlenp - len; 2408 } 2409 2410 /* Copyout the page */ 2411 error = dcopyout(l, arg, (char *)oldp + len, xlen); 2412 if (error) 2413 goto done; 2414 2415 len += xlen; 2416 base += xlen; 2417 } 2418 } 2419 *oldlenp = len; 2420 2421done: 2422 if (argv != NULL) 2423 free(argv, M_TEMP); 2424 2425 uvmspace_free(vmspace); 2426 2427 free(arg, M_TEMP); 2428 return error; 2429 2430out_locked: 2431 mutex_exit(&proclist_lock); 2432 return error; 2433} 2434 2435static int 2436sysctl_security_setidcore(SYSCTLFN_ARGS) 2437{ 2438 int newsize, error; 2439 struct sysctlnode node; 2440 2441 node = *rnode; 2442 node.sysctl_data = &newsize; 2443 newsize = *(int *)rnode->sysctl_data; 2444 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2445 if (error || newp == NULL) 2446 return error; 2447 2448 if (kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_SETIDCORE, 2449 0, NULL, NULL, NULL)) 2450 return (EPERM); 2451 2452 *(int *)rnode->sysctl_data = newsize; 2453 2454 return 0; 2455} 2456 2457static int 2458sysctl_security_setidcorename(SYSCTLFN_ARGS) 2459{ 2460 int error; 2461 char *newsetidcorename; 2462 struct sysctlnode node; 2463 2464 newsetidcorename = PNBUF_GET(); 2465 node = *rnode; 2466 node.sysctl_data = newsetidcorename; 2467 memcpy(node.sysctl_data, rnode->sysctl_data, MAXPATHLEN); 2468 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2469 if (error || newp == NULL) { 2470 goto out; 2471 } 2472 if (kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_SETIDCORE, 2473 0, NULL, NULL, NULL)) { 2474 error = EPERM; 2475 goto out; 2476 } 2477 if (strlen(newsetidcorename) == 0) { 2478 error = EINVAL; 2479 goto out; 2480 } 2481 memcpy(rnode->sysctl_data, node.sysctl_data, MAXPATHLEN); 2482out: 2483 PNBUF_PUT(newsetidcorename); 2484 return error; 2485} 2486 2487/* 2488 * sysctl helper routine for kern.cp_id node. Maps cpus to their 2489 * cpuids. 2490 */ 2491static int 2492sysctl_kern_cpid(SYSCTLFN_ARGS) 2493{ 2494 struct sysctlnode node = *rnode; 2495 2496#ifndef MULTIPROCESSOR 2497 uint64_t id; 2498 2499 if (namelen == 1) { 2500 if (name[0] != 0) 2501 return (ENOENT); 2502 /* 2503 * you're allowed to ask for the zero'th processor 2504 */ 2505 name++; 2506 namelen--; 2507 } 2508 node.sysctl_data = &id; 2509 node.sysctl_size = sizeof(id); 2510 id = cpu_number(); 2511 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2512 2513#else /* MULTIPROCESSOR */ 2514 uint64_t *cp_id = NULL; 2515 int error, n = ncpu; 2516 struct cpu_info *ci; 2517 CPU_INFO_ITERATOR cii; 2518 2519 /* 2520 * Here you may either retrieve a single cpu id or the whole 2521 * set. The size you get back when probing depends on what 2522 * you ask for. 2523 */ 2524 switch (namelen) { 2525 case 0: 2526 node.sysctl_size = n * sizeof(uint64_t); 2527 n = -2; /* ALL */ 2528 break; 2529 case 1: 2530 if (name[0] < 0 || name[0] >= n) 2531 return (ENOENT); /* ENOSUCHPROCESSOR */ 2532 node.sysctl_size = sizeof(uint64_t); 2533 n = name[0]; 2534 /* 2535 * adjust these so that sysctl_lookup() will be happy 2536 */ 2537 name++; 2538 namelen--; 2539 break; 2540 default: 2541 return (EINVAL); 2542 } 2543 2544 cp_id = malloc(node.sysctl_size, M_TEMP, M_WAITOK|M_CANFAIL); 2545 if (cp_id == NULL) 2546 return (ENOMEM); 2547 node.sysctl_data = cp_id; 2548 memset(cp_id, 0, node.sysctl_size); 2549 2550 for (CPU_INFO_FOREACH(cii, ci)) { 2551 if (n <= 0) 2552 cp_id[0] = ci->ci_cpuid; 2553 /* 2554 * if a specific processor was requested and we just 2555 * did it, we're done here 2556 */ 2557 if (n == 0) 2558 break; 2559 /* 2560 * if doing "all", skip to next cp_id slot for next processor 2561 */ 2562 if (n == -2) 2563 cp_id++; 2564 /* 2565 * if we're doing a specific processor, we're one 2566 * processor closer 2567 */ 2568 if (n > 0) 2569 n--; 2570 } 2571 2572 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2573 free(node.sysctl_data, M_TEMP); 2574 return (error); 2575 2576#endif /* MULTIPROCESSOR */ 2577} 2578 2579/* 2580 * sysctl helper routine for hw.usermem and hw.usermem64. Values are 2581 * calculate on the fly taking into account integer overflow and the 2582 * current wired count. 2583 */ 2584static int 2585sysctl_hw_usermem(SYSCTLFN_ARGS) 2586{ 2587 u_int ui; 2588 u_quad_t uq; 2589 struct sysctlnode node; 2590 2591 node = *rnode; 2592 switch (rnode->sysctl_num) { 2593 case HW_USERMEM: 2594 if ((ui = physmem - uvmexp.wired) > (UINT_MAX / PAGE_SIZE)) 2595 ui = UINT_MAX; 2596 else 2597 ui *= PAGE_SIZE; 2598 node.sysctl_data = &ui; 2599 break; 2600 case HW_USERMEM64: 2601 uq = (u_quad_t)(physmem - uvmexp.wired) * PAGE_SIZE; 2602 node.sysctl_data = &uq; 2603 break; 2604 default: 2605 return (EINVAL); 2606 } 2607 2608 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2609} 2610 2611/* 2612 * sysctl helper routine for kern.cnmagic node. Pulls the old value 2613 * out, encoded, and stuffs the new value in for decoding. 2614 */ 2615static int 2616sysctl_hw_cnmagic(SYSCTLFN_ARGS) 2617{ 2618 char magic[CNS_LEN]; 2619 int error; 2620 struct sysctlnode node; 2621 2622 if (oldp) 2623 cn_get_magic(magic, CNS_LEN); 2624 node = *rnode; 2625 node.sysctl_data = &magic[0]; 2626 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2627 if (error || newp == NULL) 2628 return (error); 2629 2630 return (cn_set_magic(magic)); 2631} 2632 2633/* 2634 * ******************************************************************** 2635 * section 3: public helper routines that are used for more than one 2636 * node 2637 * ******************************************************************** 2638 */ 2639 2640/* 2641 * sysctl helper routine for the kern.root_device node and some ports' 2642 * machdep.root_device nodes. 2643 */ 2644int 2645sysctl_root_device(SYSCTLFN_ARGS) 2646{ 2647 struct sysctlnode node; 2648 2649 node = *rnode; 2650 node.sysctl_data = root_device->dv_xname; 2651 node.sysctl_size = strlen(root_device->dv_xname) + 1; 2652 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2653} 2654 2655/* 2656 * sysctl helper routine for kern.consdev, dependent on the current 2657 * state of the console. Also used for machdep.console_device on some 2658 * ports. 2659 */ 2660int 2661sysctl_consdev(SYSCTLFN_ARGS) 2662{ 2663 dev_t consdev; 2664 struct sysctlnode node; 2665 2666 if (cn_tab != NULL) 2667 consdev = cn_tab->cn_dev; 2668 else 2669 consdev = NODEV; 2670 node = *rnode; 2671 node.sysctl_data = &consdev; 2672 node.sysctl_size = sizeof(consdev); 2673 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2674} 2675 2676/* 2677 * ******************************************************************** 2678 * section 4: support for some helpers 2679 * ******************************************************************** 2680 */ 2681 2682/* 2683 * Fill in a kinfo_proc2 structure for the specified process. 2684 */ 2685static void 2686fill_kproc2(struct proc *p, struct kinfo_proc2 *ki) 2687{ 2688 struct tty *tp; 2689 struct lwp *l, *l2; 2690 struct timeval ut, st, rt; 2691 sigset_t ss1, ss2; 2692 2693 memset(ki, 0, sizeof(*ki)); 2694 2695 ki->p_paddr = PTRTOUINT64(p); 2696 ki->p_fd = PTRTOUINT64(p->p_fd); 2697 ki->p_cwdi = PTRTOUINT64(p->p_cwdi); 2698 ki->p_stats = PTRTOUINT64(p->p_stats); 2699 ki->p_limit = PTRTOUINT64(p->p_limit); 2700 ki->p_vmspace = PTRTOUINT64(p->p_vmspace); 2701 ki->p_sigacts = PTRTOUINT64(p->p_sigacts); 2702 ki->p_sess = PTRTOUINT64(p->p_session); 2703 ki->p_tsess = 0; /* may be changed if controlling tty below */ 2704 ki->p_ru = PTRTOUINT64(&p->p_stats->p_ru); 2705 2706 ki->p_eflag = 0; 2707 ki->p_exitsig = p->p_exitsig; 2708 2709 ki->p_flag = sysctl_map_flags(sysctl_flagmap, p->p_flag); 2710 ki->p_flag |= sysctl_map_flags(sysctl_sflagmap, p->p_sflag); 2711 ki->p_flag |= sysctl_map_flags(sysctl_slflagmap, p->p_slflag); 2712 ki->p_flag |= sysctl_map_flags(sysctl_lflagmap, p->p_lflag); 2713 ki->p_flag |= sysctl_map_flags(sysctl_stflagmap, p->p_stflag); 2714 2715 ki->p_pid = p->p_pid; 2716 if (p->p_pptr) 2717 ki->p_ppid = p->p_pptr->p_pid; 2718 else 2719 ki->p_ppid = 0; 2720 ki->p_sid = p->p_session->s_sid; 2721 ki->p__pgid = p->p_pgrp->pg_id; 2722 2723 ki->p_tpgid = NO_PGID; /* may be changed if controlling tty below */ 2724 2725 ki->p_uid = kauth_cred_geteuid(p->p_cred); 2726 ki->p_ruid = kauth_cred_getuid(p->p_cred); 2727 ki->p_gid = kauth_cred_getegid(p->p_cred); 2728 ki->p_rgid = kauth_cred_getgid(p->p_cred); 2729 ki->p_svuid = kauth_cred_getsvuid(p->p_cred); 2730 ki->p_svgid = kauth_cred_getsvgid(p->p_cred); 2731 2732 ki->p_ngroups = kauth_cred_ngroups(p->p_cred); 2733 kauth_cred_getgroups(p->p_cred, ki->p_groups, 2734 min(ki->p_ngroups, sizeof(ki->p_groups) / sizeof(ki->p_groups[0])), 2735 UIO_SYSSPACE); 2736 2737 ki->p_jobc = p->p_pgrp->pg_jobc; 2738 if ((p->p_lflag & PL_CONTROLT) && (tp = p->p_session->s_ttyp)) { 2739 ki->p_tdev = tp->t_dev; 2740 ki->p_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PGID; 2741 ki->p_tsess = PTRTOUINT64(tp->t_session); 2742 } else { 2743 ki->p_tdev = NODEV; 2744 } 2745 2746 ki->p_estcpu = p->p_estcpu; 2747 2748 mutex_enter(&p->p_smutex); 2749 2750 ki->p_uticks = p->p_uticks; 2751 ki->p_sticks = p->p_sticks; 2752 ki->p_iticks = p->p_iticks; 2753 2754 ki->p_tracep = PTRTOUINT64(p->p_tracep); 2755 ki->p_traceflag = p->p_traceflag; 2756 2757 memcpy(&ki->p_sigignore, &p->p_sigctx.ps_sigignore,sizeof(ki_sigset_t)); 2758 memcpy(&ki->p_sigcatch, &p->p_sigctx.ps_sigcatch, sizeof(ki_sigset_t)); 2759 2760 ki->p_cpticks = 0; 2761 ki->p_pctcpu = p->p_pctcpu; 2762 ss1 = p->p_sigpend.sp_set; 2763 LIST_FOREACH(l, &p->p_lwps, l_sibling) { 2764 /* This is hardly correct, but... */ 2765 sigplusset(&l->l_sigpend.sp_set, &ss1); 2766 sigplusset(&l->l_sigmask, &ss2); 2767 ki->p_cpticks += l->l_cpticks; 2768 ki->p_pctcpu += l->l_pctcpu; 2769 } 2770 memcpy(&ki->p_siglist, &ss1, sizeof(ki_sigset_t)); 2771 memcpy(&ki->p_sigmask, &ss2, sizeof(ki_sigset_t)); 2772 2773 ki->p_stat = p->p_stat; /* Will likely be overridden by LWP status */ 2774 ki->p_realstat = p->p_stat; 2775 ki->p_nice = p->p_nice; 2776 2777 ki->p_xstat = p->p_xstat; 2778 ki->p_acflag = p->p_acflag; 2779 2780 strncpy(ki->p_comm, p->p_comm, 2781 min(sizeof(ki->p_comm), sizeof(p->p_comm))); 2782 2783 strncpy(ki->p_login, p->p_session->s_login, 2784 min(sizeof ki->p_login - 1, sizeof p->p_session->s_login)); 2785 2786 ki->p_nlwps = p->p_nlwps; 2787 ki->p_realflag = ki->p_flag; 2788 2789 if (p->p_stat == SIDL || P_ZOMBIE(p)) { 2790 ki->p_vm_rssize = 0; 2791 ki->p_vm_tsize = 0; 2792 ki->p_vm_dsize = 0; 2793 ki->p_vm_ssize = 0; 2794 ki->p_nrlwps = 0; 2795 l = NULL; 2796 } else { 2797 struct vmspace *vm = p->p_vmspace; 2798 int tmp; 2799 2800 ki->p_vm_rssize = vm_resident_count(vm); 2801 ki->p_vm_tsize = vm->vm_tsize; 2802 ki->p_vm_dsize = vm->vm_dsize; 2803 ki->p_vm_ssize = vm->vm_ssize; 2804 2805 /* Pick a "representative" LWP */ 2806 l = proc_representative_lwp(p, &tmp, 1); 2807 lwp_lock(l); 2808 ki->p_nrlwps = tmp; 2809 ki->p_forw = 0; 2810 ki->p_back = 0; 2811 ki->p_addr = PTRTOUINT64(l->l_addr); 2812 ki->p_stat = l->l_stat; 2813 ki->p_flag |= sysctl_map_flags(sysctl_lwpflagmap, l->l_flag); 2814 ki->p_swtime = l->l_swtime; 2815 ki->p_slptime = l->l_slptime; 2816 if (l->l_stat == LSONPROC) 2817 ki->p_schedflags = l->l_cpu->ci_schedstate.spc_flags; 2818 else 2819 ki->p_schedflags = 0; 2820 ki->p_holdcnt = l->l_holdcnt; 2821 ki->p_priority = l->l_priority; 2822 ki->p_usrpri = l->l_usrpri; 2823 if (l->l_wmesg) 2824 strncpy(ki->p_wmesg, l->l_wmesg, sizeof(ki->p_wmesg)); 2825 ki->p_wchan = PTRTOUINT64(l->l_wchan); 2826 lwp_unlock(l); 2827 } 2828 if (p->p_session->s_ttyvp) 2829 ki->p_eflag |= EPROC_CTTY; 2830 if (SESS_LEADER(p)) 2831 ki->p_eflag |= EPROC_SLEADER; 2832 2833 /* XXX Is this double check necessary? */ 2834 if (P_ZOMBIE(p)) { 2835 ki->p_uvalid = 0; 2836 ki->p_rtime_sec = 0; 2837 ki->p_rtime_usec = 0; 2838 } else { 2839 ki->p_uvalid = 1; 2840 2841 ki->p_ustart_sec = p->p_stats->p_start.tv_sec; 2842 ki->p_ustart_usec = p->p_stats->p_start.tv_usec; 2843 2844 calcru(p, &ut, &st, NULL, &rt); 2845 ki->p_rtime_sec = rt.tv_sec; 2846 ki->p_rtime_usec = rt.tv_usec; 2847 ki->p_uutime_sec = ut.tv_sec; 2848 ki->p_uutime_usec = ut.tv_usec; 2849 ki->p_ustime_sec = st.tv_sec; 2850 ki->p_ustime_usec = st.tv_usec; 2851 2852 ki->p_uru_maxrss = p->p_stats->p_ru.ru_maxrss; 2853 ki->p_uru_ixrss = p->p_stats->p_ru.ru_ixrss; 2854 ki->p_uru_idrss = p->p_stats->p_ru.ru_idrss; 2855 ki->p_uru_isrss = p->p_stats->p_ru.ru_isrss; 2856 ki->p_uru_minflt = p->p_stats->p_ru.ru_minflt; 2857 ki->p_uru_majflt = p->p_stats->p_ru.ru_majflt; 2858 ki->p_uru_nswap = p->p_stats->p_ru.ru_nswap; 2859 ki->p_uru_inblock = p->p_stats->p_ru.ru_inblock; 2860 ki->p_uru_oublock = p->p_stats->p_ru.ru_oublock; 2861 ki->p_uru_msgsnd = p->p_stats->p_ru.ru_msgsnd; 2862 ki->p_uru_msgrcv = p->p_stats->p_ru.ru_msgrcv; 2863 ki->p_uru_nsignals = p->p_stats->p_ru.ru_nsignals; 2864 2865 ki->p_uru_nvcsw = 0; 2866 ki->p_uru_nivcsw = 0; 2867 LIST_FOREACH(l2, &p->p_lwps, l_sibling) { 2868 ki->p_uru_nvcsw += (l->l_ncsw - l->l_nivcsw); 2869 ki->p_uru_nivcsw += l->l_nivcsw; 2870 } 2871 2872 timeradd(&p->p_stats->p_cru.ru_utime, 2873 &p->p_stats->p_cru.ru_stime, &ut); 2874 ki->p_uctime_sec = ut.tv_sec; 2875 ki->p_uctime_usec = ut.tv_usec; 2876 } 2877#ifdef MULTIPROCESSOR 2878 if (l != NULL) 2879 ki->p_cpuid = l->l_cpu->ci_cpuid; 2880 else 2881#endif 2882 ki->p_cpuid = KI_NOCPU; 2883 2884 mutex_exit(&p->p_smutex); 2885} 2886 2887/* 2888 * Fill in a kinfo_lwp structure for the specified lwp. 2889 */ 2890static void 2891fill_lwp(struct lwp *l, struct kinfo_lwp *kl) 2892{ 2893 struct proc *p = l->l_proc; 2894 2895 kl->l_forw = 0; 2896 kl->l_back = 0; 2897 kl->l_laddr = PTRTOUINT64(l); 2898 kl->l_addr = PTRTOUINT64(l->l_addr); 2899 kl->l_stat = l->l_stat; 2900 kl->l_lid = l->l_lid; 2901 kl->l_flag = sysctl_map_flags(sysctl_lwpprflagmap, l->l_prflag); 2902 2903 kl->l_swtime = l->l_swtime; 2904 kl->l_slptime = l->l_slptime; 2905 if (l->l_stat == LSONPROC) 2906 kl->l_schedflags = l->l_cpu->ci_schedstate.spc_flags; 2907 else 2908 kl->l_schedflags = 0; 2909 kl->l_holdcnt = l->l_holdcnt; 2910 kl->l_priority = l->l_priority; 2911 kl->l_usrpri = l->l_usrpri; 2912 if (l->l_wmesg) 2913 strncpy(kl->l_wmesg, l->l_wmesg, sizeof(kl->l_wmesg)); 2914 kl->l_wchan = PTRTOUINT64(l->l_wchan); 2915#ifdef MULTIPROCESSOR 2916 kl->l_cpuid = l->l_cpu->ci_cpuid; 2917#else 2918 kl->l_cpuid = KI_NOCPU; 2919#endif 2920 kl->l_rtime_sec = l->l_rtime.tv_sec; 2921 kl->l_rtime_usec = l->l_rtime.tv_usec; 2922 kl->l_cpticks = l->l_cpticks; 2923 kl->l_pctcpu = l->l_pctcpu; 2924 kl->l_pid = p->p_pid; 2925 if (l->l_name == NULL) 2926 kl->l_name[0] = '\0'; 2927 else 2928 strlcpy(kl->l_name, l->l_name, sizeof(kl->l_name)); 2929} 2930 2931/* 2932 * Fill in an eproc structure for the specified process. 2933 */ 2934void 2935fill_eproc(struct proc *p, struct eproc *ep) 2936{ 2937 struct tty *tp; 2938 struct lwp *l; 2939 2940 ep->e_paddr = p; 2941 ep->e_sess = p->p_session; 2942 kauth_cred_topcred(p->p_cred, &ep->e_pcred); 2943 kauth_cred_toucred(p->p_cred, &ep->e_ucred); 2944 if (p->p_stat == SIDL || P_ZOMBIE(p)) { 2945 ep->e_vm.vm_rssize = 0; 2946 ep->e_vm.vm_tsize = 0; 2947 ep->e_vm.vm_dsize = 0; 2948 ep->e_vm.vm_ssize = 0; 2949 /* ep->e_vm.vm_pmap = XXX; */ 2950 } else { 2951 struct vmspace *vm = p->p_vmspace; 2952 2953 ep->e_vm.vm_rssize = vm_resident_count(vm); 2954 ep->e_vm.vm_tsize = vm->vm_tsize; 2955 ep->e_vm.vm_dsize = vm->vm_dsize; 2956 ep->e_vm.vm_ssize = vm->vm_ssize; 2957 2958 /* Pick a "representative" LWP */ 2959 mutex_enter(&p->p_smutex); 2960 l = proc_representative_lwp(p, NULL, 1); 2961 lwp_lock(l); 2962 if (l->l_wmesg) 2963 strncpy(ep->e_wmesg, l->l_wmesg, WMESGLEN); 2964 lwp_unlock(l); 2965 mutex_exit(&p->p_smutex); 2966 } 2967 if (p->p_pptr) 2968 ep->e_ppid = p->p_pptr->p_pid; 2969 else 2970 ep->e_ppid = 0; 2971 ep->e_pgid = p->p_pgrp->pg_id; 2972 ep->e_sid = ep->e_sess->s_sid; 2973 ep->e_jobc = p->p_pgrp->pg_jobc; 2974 if ((p->p_lflag & PL_CONTROLT) && 2975 (tp = ep->e_sess->s_ttyp)) { 2976 ep->e_tdev = tp->t_dev; 2977 ep->e_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PGID; 2978 ep->e_tsess = tp->t_session; 2979 } else 2980 ep->e_tdev = NODEV; 2981 2982 ep->e_xsize = ep->e_xrssize = 0; 2983 ep->e_xccount = ep->e_xswrss = 0; 2984 ep->e_flag = ep->e_sess->s_ttyvp ? EPROC_CTTY : 0; 2985 if (SESS_LEADER(p)) 2986 ep->e_flag |= EPROC_SLEADER; 2987 strncpy(ep->e_login, ep->e_sess->s_login, MAXLOGNAME); 2988} 2989 2990u_int 2991sysctl_map_flags(const u_int *map, u_int word) 2992{ 2993 u_int rv; 2994 2995 for (rv = 0; *map != 0; map += 2) 2996 if ((word & map[0]) != 0) 2997 rv |= map[1]; 2998 2999 return rv; 3000} 3001