init_sysctl.c revision 1.201
1 /* $NetBSD: init_sysctl.c,v 1.201 2014/02/25 18:30:11 pooka Exp $ */ 2 3 /*- 4 * Copyright (c) 2003, 2007, 2008, 2009 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, and by Andrew Doran. 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 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 __KERNEL_RCSID(0, "$NetBSD: init_sysctl.c,v 1.201 2014/02/25 18:30:11 pooka Exp $"); 34 35 #include "opt_sysv.h" 36 #include "opt_compat_netbsd.h" 37 #include "opt_modular.h" 38 #include "pty.h" 39 40 #include <sys/types.h> 41 #include <sys/param.h> 42 #include <sys/sysctl.h> 43 #include <sys/cpu.h> 44 #include <sys/errno.h> 45 #include <sys/systm.h> 46 #include <sys/kernel.h> 47 #include <sys/unistd.h> 48 #include <sys/disklabel.h> 49 #include <sys/cprng.h> 50 #include <sys/vnode.h> 51 #include <sys/mount.h> 52 #include <sys/namei.h> 53 #include <sys/msgbuf.h> 54 #include <dev/cons.h> 55 #include <sys/socketvar.h> 56 #include <sys/file.h> 57 #include <sys/filedesc.h> 58 #include <sys/tty.h> 59 #include <sys/kmem.h> 60 #include <sys/resource.h> 61 #include <sys/resourcevar.h> 62 #include <sys/exec.h> 63 #include <sys/conf.h> 64 #include <sys/device.h> 65 #include <sys/stat.h> 66 #include <sys/kauth.h> 67 #include <sys/ktrace.h> 68 #include <sys/ksem.h> 69 70 #include <sys/cpu.h> 71 72 int security_setidcore_dump; 73 char security_setidcore_path[MAXPATHLEN] = "/var/crash/%n.core"; 74 uid_t security_setidcore_owner = 0; 75 gid_t security_setidcore_group = 0; 76 mode_t security_setidcore_mode = (S_IRUSR|S_IWUSR); 77 78 static const u_int sysctl_lwpprflagmap[] = { 79 LPR_DETACHED, L_DETACHED, 80 0 81 }; 82 83 /* 84 * try over estimating by 5 procs/lwps 85 */ 86 #define KERN_LWPSLOP (5 * sizeof(struct kinfo_lwp)) 87 88 static int dcopyout(struct lwp *, const void *, void *, size_t); 89 90 static int 91 dcopyout(struct lwp *l, const void *kaddr, void *uaddr, size_t len) 92 { 93 int error; 94 95 error = copyout(kaddr, uaddr, len); 96 ktrmibio(-1, UIO_READ, uaddr, len, error); 97 98 return error; 99 } 100 101 #ifdef DIAGNOSTIC 102 static int sysctl_kern_trigger_panic(SYSCTLFN_PROTO); 103 #endif 104 static int sysctl_kern_maxvnodes(SYSCTLFN_PROTO); 105 static int sysctl_kern_rtc_offset(SYSCTLFN_PROTO); 106 static int sysctl_kern_maxproc(SYSCTLFN_PROTO); 107 static int sysctl_kern_hostid(SYSCTLFN_PROTO); 108 static int sysctl_kern_clockrate(SYSCTLFN_PROTO); 109 static int sysctl_msgbuf(SYSCTLFN_PROTO); 110 static int sysctl_kern_defcorename(SYSCTLFN_PROTO); 111 static int sysctl_kern_cptime(SYSCTLFN_PROTO); 112 #if NPTY > 0 113 static int sysctl_kern_maxptys(SYSCTLFN_PROTO); 114 #endif /* NPTY > 0 */ 115 static int sysctl_kern_lwp(SYSCTLFN_PROTO); 116 static int sysctl_kern_forkfsleep(SYSCTLFN_PROTO); 117 static int sysctl_kern_root_partition(SYSCTLFN_PROTO); 118 static int sysctl_kern_drivers(SYSCTLFN_PROTO); 119 static int sysctl_security_setidcore(SYSCTLFN_PROTO); 120 static int sysctl_security_setidcorename(SYSCTLFN_PROTO); 121 static int sysctl_kern_cpid(SYSCTLFN_PROTO); 122 static int sysctl_hw_usermem(SYSCTLFN_PROTO); 123 static int sysctl_hw_cnmagic(SYSCTLFN_PROTO); 124 125 static void fill_lwp(struct lwp *l, struct kinfo_lwp *kl); 126 127 /* 128 * ******************************************************************** 129 * section 1: setup routines 130 * ******************************************************************** 131 * These functions are stuffed into a link set for sysctl setup 132 * functions. They're never called or referenced from anywhere else. 133 * ******************************************************************** 134 */ 135 136 /* 137 * this setup routine is a replacement for kern_sysctl() 138 */ 139 SYSCTL_SETUP(sysctl_kern_setup, "sysctl kern subtree setup") 140 { 141 extern int kern_logsigexit; /* defined in kern/kern_sig.c */ 142 extern fixpt_t ccpu; /* defined in kern/kern_synch.c */ 143 extern int dumponpanic; /* defined in kern/subr_prf.c */ 144 const struct sysctlnode *rnode; 145 146 sysctl_createv(clog, 0, NULL, NULL, 147 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 148 CTLTYPE_INT, "maxvnodes", 149 SYSCTL_DESCR("Maximum number of vnodes"), 150 sysctl_kern_maxvnodes, 0, NULL, 0, 151 CTL_KERN, KERN_MAXVNODES, CTL_EOL); 152 sysctl_createv(clog, 0, NULL, NULL, 153 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 154 CTLTYPE_INT, "maxproc", 155 SYSCTL_DESCR("Maximum number of simultaneous processes"), 156 sysctl_kern_maxproc, 0, NULL, 0, 157 CTL_KERN, KERN_MAXPROC, CTL_EOL); 158 sysctl_createv(clog, 0, NULL, NULL, 159 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 160 CTLTYPE_INT, "maxfiles", 161 SYSCTL_DESCR("Maximum number of open files"), 162 NULL, 0, &maxfiles, 0, 163 CTL_KERN, KERN_MAXFILES, CTL_EOL); 164 sysctl_createv(clog, 0, NULL, NULL, 165 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 166 CTLTYPE_INT, "argmax", 167 SYSCTL_DESCR("Maximum number of bytes of arguments to " 168 "execve(2)"), 169 NULL, ARG_MAX, NULL, 0, 170 CTL_KERN, KERN_ARGMAX, CTL_EOL); 171 sysctl_createv(clog, 0, NULL, NULL, 172 CTLFLAG_PERMANENT|CTLFLAG_READWRITE|CTLFLAG_HEX, 173 CTLTYPE_INT, "hostid", 174 SYSCTL_DESCR("System host ID number"), 175 sysctl_kern_hostid, 0, NULL, 0, 176 CTL_KERN, KERN_HOSTID, CTL_EOL); 177 sysctl_createv(clog, 0, NULL, NULL, 178 CTLFLAG_PERMANENT, 179 CTLTYPE_STRUCT, "clockrate", 180 SYSCTL_DESCR("Kernel clock rates"), 181 sysctl_kern_clockrate, 0, NULL, 182 sizeof(struct clockinfo), 183 CTL_KERN, KERN_CLOCKRATE, CTL_EOL); 184 sysctl_createv(clog, 0, NULL, NULL, 185 CTLFLAG_PERMANENT, 186 CTLTYPE_INT, "hardclock_ticks", 187 SYSCTL_DESCR("Number of hardclock ticks"), 188 NULL, 0, &hardclock_ticks, sizeof(hardclock_ticks), 189 CTL_KERN, KERN_HARDCLOCK_TICKS, CTL_EOL); 190 sysctl_createv(clog, 0, NULL, NULL, 191 CTLFLAG_PERMANENT, 192 CTLTYPE_STRUCT, "vnode", 193 SYSCTL_DESCR("System vnode table"), 194 sysctl_kern_vnode, 0, NULL, 0, 195 CTL_KERN, KERN_VNODE, CTL_EOL); 196 #ifndef GPROF 197 sysctl_createv(clog, 0, NULL, NULL, 198 CTLFLAG_PERMANENT, 199 CTLTYPE_NODE, "profiling", 200 SYSCTL_DESCR("Profiling information (not available)"), 201 sysctl_notavail, 0, NULL, 0, 202 CTL_KERN, KERN_PROF, CTL_EOL); 203 #endif 204 sysctl_createv(clog, 0, NULL, NULL, 205 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 206 CTLTYPE_INT, "posix1version", 207 SYSCTL_DESCR("Version of ISO/IEC 9945 (POSIX 1003.1) " 208 "with which the operating system attempts " 209 "to comply"), 210 NULL, _POSIX_VERSION, NULL, 0, 211 CTL_KERN, KERN_POSIX1, CTL_EOL); 212 sysctl_createv(clog, 0, NULL, NULL, 213 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 214 CTLTYPE_INT, "ngroups", 215 SYSCTL_DESCR("Maximum number of supplemental groups"), 216 NULL, NGROUPS_MAX, NULL, 0, 217 CTL_KERN, KERN_NGROUPS, CTL_EOL); 218 sysctl_createv(clog, 0, NULL, NULL, 219 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 220 CTLTYPE_INT, "job_control", 221 SYSCTL_DESCR("Whether job control is available"), 222 NULL, 1, NULL, 0, 223 CTL_KERN, KERN_JOB_CONTROL, CTL_EOL); 224 sysctl_createv(clog, 0, NULL, NULL, 225 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 226 CTLTYPE_INT, "saved_ids", 227 SYSCTL_DESCR("Whether POSIX saved set-group/user ID is " 228 "available"), NULL, 229 #ifdef _POSIX_SAVED_IDS 230 1, 231 #else /* _POSIX_SAVED_IDS */ 232 0, 233 #endif /* _POSIX_SAVED_IDS */ 234 NULL, 0, CTL_KERN, KERN_SAVED_IDS, CTL_EOL); 235 sysctl_createv(clog, 0, NULL, NULL, 236 CTLFLAG_PERMANENT|CTLFLAG_HEX, 237 CTLTYPE_INT, "boothowto", 238 SYSCTL_DESCR("Flags from boot loader"), 239 NULL, 0, &boothowto, sizeof(boothowto), 240 CTL_KERN, CTL_CREATE, CTL_EOL); 241 sysctl_createv(clog, 0, NULL, NULL, 242 CTLFLAG_PERMANENT, 243 CTLTYPE_STRUCT, "boottime", 244 SYSCTL_DESCR("System boot time"), 245 NULL, 0, &boottime, sizeof(boottime), 246 CTL_KERN, KERN_BOOTTIME, CTL_EOL); 247 sysctl_createv(clog, 0, NULL, NULL, 248 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 249 CTLTYPE_INT, "maxpartitions", 250 SYSCTL_DESCR("Maximum number of partitions allowed per " 251 "disk"), 252 NULL, MAXPARTITIONS, NULL, 0, 253 CTL_KERN, KERN_MAXPARTITIONS, CTL_EOL); 254 sysctl_createv(clog, 0, NULL, NULL, 255 CTLFLAG_PERMANENT, 256 CTLTYPE_STRUCT, "timex", NULL, 257 sysctl_notavail, 0, NULL, 0, 258 CTL_KERN, KERN_TIMEX, CTL_EOL); 259 sysctl_createv(clog, 0, NULL, NULL, 260 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 261 CTLTYPE_INT, "rtc_offset", 262 SYSCTL_DESCR("Offset of real time clock from UTC in " 263 "minutes"), 264 sysctl_kern_rtc_offset, 0, &rtc_offset, 0, 265 CTL_KERN, KERN_RTC_OFFSET, CTL_EOL); 266 sysctl_createv(clog, 0, NULL, NULL, 267 CTLFLAG_PERMANENT, 268 CTLTYPE_STRING, "root_device", 269 SYSCTL_DESCR("Name of the root device"), 270 sysctl_root_device, 0, NULL, 0, 271 CTL_KERN, KERN_ROOT_DEVICE, CTL_EOL); 272 sysctl_createv(clog, 0, NULL, NULL, 273 CTLFLAG_PERMANENT, 274 CTLTYPE_INT, "msgbufsize", 275 SYSCTL_DESCR("Size of the kernel message buffer"), 276 sysctl_msgbuf, 0, NULL, 0, 277 CTL_KERN, KERN_MSGBUFSIZE, CTL_EOL); 278 sysctl_createv(clog, 0, NULL, NULL, 279 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 280 CTLTYPE_INT, "fsync", 281 SYSCTL_DESCR("Whether the POSIX 1003.1b File " 282 "Synchronization Option is available on " 283 "this system"), 284 NULL, 1, NULL, 0, 285 CTL_KERN, KERN_FSYNC, CTL_EOL); 286 sysctl_createv(clog, 0, NULL, NULL, 287 CTLFLAG_PERMANENT, 288 CTLTYPE_NODE, "ipc", 289 SYSCTL_DESCR("SysV IPC options"), 290 NULL, 0, NULL, 0, 291 CTL_KERN, KERN_SYSVIPC, CTL_EOL); 292 sysctl_createv(clog, 0, NULL, NULL, 293 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 294 CTLTYPE_INT, "sysvmsg", 295 SYSCTL_DESCR("System V style message support available"), 296 NULL, 297 #ifdef SYSVMSG 298 1, 299 #else /* SYSVMSG */ 300 0, 301 #endif /* SYSVMSG */ 302 NULL, 0, CTL_KERN, KERN_SYSVIPC, KERN_SYSVIPC_MSG, CTL_EOL); 303 sysctl_createv(clog, 0, NULL, NULL, 304 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 305 CTLTYPE_INT, "sysvsem", 306 SYSCTL_DESCR("System V style semaphore support " 307 "available"), NULL, 308 #ifdef SYSVSEM 309 1, 310 #else /* SYSVSEM */ 311 0, 312 #endif /* SYSVSEM */ 313 NULL, 0, CTL_KERN, KERN_SYSVIPC, KERN_SYSVIPC_SEM, CTL_EOL); 314 sysctl_createv(clog, 0, NULL, NULL, 315 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 316 CTLTYPE_INT, "sysvshm", 317 SYSCTL_DESCR("System V style shared memory support " 318 "available"), NULL, 319 #ifdef SYSVSHM 320 1, 321 #else /* SYSVSHM */ 322 0, 323 #endif /* SYSVSHM */ 324 NULL, 0, CTL_KERN, KERN_SYSVIPC, KERN_SYSVIPC_SHM, CTL_EOL); 325 sysctl_createv(clog, 0, NULL, NULL, 326 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 327 CTLTYPE_INT, "synchronized_io", 328 SYSCTL_DESCR("Whether the POSIX 1003.1b Synchronized " 329 "I/O Option is available on this system"), 330 NULL, 1, NULL, 0, 331 CTL_KERN, KERN_SYNCHRONIZED_IO, CTL_EOL); 332 sysctl_createv(clog, 0, NULL, NULL, 333 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 334 CTLTYPE_INT, "iov_max", 335 SYSCTL_DESCR("Maximum number of iovec structures per " 336 "process"), 337 NULL, IOV_MAX, NULL, 0, 338 CTL_KERN, KERN_IOV_MAX, CTL_EOL); 339 sysctl_createv(clog, 0, NULL, NULL, 340 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 341 CTLTYPE_INT, "mapped_files", 342 SYSCTL_DESCR("Whether the POSIX 1003.1b Memory Mapped " 343 "Files Option is available on this system"), 344 NULL, 1, NULL, 0, 345 CTL_KERN, KERN_MAPPED_FILES, CTL_EOL); 346 sysctl_createv(clog, 0, NULL, NULL, 347 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 348 CTLTYPE_INT, "memlock", 349 SYSCTL_DESCR("Whether the POSIX 1003.1b Process Memory " 350 "Locking Option is available on this " 351 "system"), 352 NULL, 1, NULL, 0, 353 CTL_KERN, KERN_MEMLOCK, CTL_EOL); 354 sysctl_createv(clog, 0, NULL, NULL, 355 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 356 CTLTYPE_INT, "memlock_range", 357 SYSCTL_DESCR("Whether the POSIX 1003.1b Range Memory " 358 "Locking Option is available on this " 359 "system"), 360 NULL, 1, NULL, 0, 361 CTL_KERN, KERN_MEMLOCK_RANGE, CTL_EOL); 362 sysctl_createv(clog, 0, NULL, NULL, 363 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 364 CTLTYPE_INT, "memory_protection", 365 SYSCTL_DESCR("Whether the POSIX 1003.1b Memory " 366 "Protection Option is available on this " 367 "system"), 368 NULL, 1, NULL, 0, 369 CTL_KERN, KERN_MEMORY_PROTECTION, CTL_EOL); 370 sysctl_createv(clog, 0, NULL, NULL, 371 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 372 CTLTYPE_INT, "login_name_max", 373 SYSCTL_DESCR("Maximum login name length"), 374 NULL, LOGIN_NAME_MAX, NULL, 0, 375 CTL_KERN, KERN_LOGIN_NAME_MAX, CTL_EOL); 376 sysctl_createv(clog, 0, NULL, NULL, 377 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 378 CTLTYPE_STRING, "defcorename", 379 SYSCTL_DESCR("Default core file name"), 380 sysctl_kern_defcorename, 0, defcorename, MAXPATHLEN, 381 CTL_KERN, KERN_DEFCORENAME, CTL_EOL); 382 sysctl_createv(clog, 0, NULL, NULL, 383 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 384 CTLTYPE_INT, "logsigexit", 385 SYSCTL_DESCR("Log process exit when caused by signals"), 386 NULL, 0, &kern_logsigexit, 0, 387 CTL_KERN, KERN_LOGSIGEXIT, CTL_EOL); 388 sysctl_createv(clog, 0, NULL, NULL, 389 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 390 CTLTYPE_INT, "fscale", 391 SYSCTL_DESCR("Kernel fixed-point scale factor"), 392 NULL, FSCALE, NULL, 0, 393 CTL_KERN, KERN_FSCALE, CTL_EOL); 394 sysctl_createv(clog, 0, NULL, NULL, 395 CTLFLAG_PERMANENT, 396 CTLTYPE_INT, "ccpu", 397 SYSCTL_DESCR("Scheduler exponential decay value"), 398 NULL, 0, &ccpu, 0, 399 CTL_KERN, KERN_CCPU, CTL_EOL); 400 sysctl_createv(clog, 0, NULL, NULL, 401 CTLFLAG_PERMANENT, 402 CTLTYPE_STRUCT, "cp_time", 403 SYSCTL_DESCR("Clock ticks spent in different CPU states"), 404 sysctl_kern_cptime, 0, NULL, 0, 405 CTL_KERN, KERN_CP_TIME, CTL_EOL); 406 sysctl_createv(clog, 0, NULL, NULL, 407 CTLFLAG_PERMANENT, 408 CTLTYPE_INT, "msgbuf", 409 SYSCTL_DESCR("Kernel message buffer"), 410 sysctl_msgbuf, 0, NULL, 0, 411 CTL_KERN, KERN_MSGBUF, CTL_EOL); 412 sysctl_createv(clog, 0, NULL, NULL, 413 CTLFLAG_PERMANENT, 414 CTLTYPE_STRUCT, "consdev", 415 SYSCTL_DESCR("Console device"), 416 sysctl_consdev, 0, NULL, sizeof(dev_t), 417 CTL_KERN, KERN_CONSDEV, CTL_EOL); 418 #if NPTY > 0 419 sysctl_createv(clog, 0, NULL, NULL, 420 CTLFLAG_PERMANENT, 421 CTLTYPE_INT, "maxptys", 422 SYSCTL_DESCR("Maximum number of pseudo-ttys"), 423 sysctl_kern_maxptys, 0, NULL, 0, 424 CTL_KERN, KERN_MAXPTYS, CTL_EOL); 425 #endif /* NPTY > 0 */ 426 sysctl_createv(clog, 0, NULL, NULL, 427 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 428 CTLTYPE_INT, "maxphys", 429 SYSCTL_DESCR("Maximum raw I/O transfer size"), 430 NULL, MAXPHYS, NULL, 0, 431 CTL_KERN, KERN_MAXPHYS, CTL_EOL); 432 sysctl_createv(clog, 0, NULL, NULL, 433 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 434 CTLTYPE_INT, "monotonic_clock", 435 SYSCTL_DESCR("Implementation version of the POSIX " 436 "1003.1b Monotonic Clock Option"), 437 /* XXX _POSIX_VERSION */ 438 NULL, _POSIX_MONOTONIC_CLOCK, NULL, 0, 439 CTL_KERN, KERN_MONOTONIC_CLOCK, CTL_EOL); 440 sysctl_createv(clog, 0, NULL, NULL, 441 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 442 CTLTYPE_INT, "labelsector", 443 SYSCTL_DESCR("Sector number containing the disklabel"), 444 NULL, LABELSECTOR, NULL, 0, 445 CTL_KERN, KERN_LABELSECTOR, CTL_EOL); 446 sysctl_createv(clog, 0, NULL, NULL, 447 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 448 CTLTYPE_INT, "labeloffset", 449 SYSCTL_DESCR("Offset of the disklabel within the " 450 "sector"), 451 NULL, LABELOFFSET, NULL, 0, 452 CTL_KERN, KERN_LABELOFFSET, CTL_EOL); 453 sysctl_createv(clog, 0, NULL, NULL, 454 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 455 CTLTYPE_INT, "labelusesmbr", 456 SYSCTL_DESCR("disklabel is inside MBR partition"), 457 NULL, LABELUSESMBR, NULL, 0, 458 CTL_KERN, CTL_CREATE, CTL_EOL); 459 sysctl_createv(clog, 0, NULL, NULL, 460 CTLFLAG_PERMANENT, 461 CTLTYPE_NODE, "lwp", 462 SYSCTL_DESCR("System-wide LWP information"), 463 sysctl_kern_lwp, 0, NULL, 0, 464 CTL_KERN, KERN_LWP, CTL_EOL); 465 sysctl_createv(clog, 0, NULL, NULL, 466 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 467 CTLTYPE_INT, "forkfsleep", 468 SYSCTL_DESCR("Milliseconds to sleep on fork failure due " 469 "to process limits"), 470 sysctl_kern_forkfsleep, 0, NULL, 0, 471 CTL_KERN, KERN_FORKFSLEEP, CTL_EOL); 472 sysctl_createv(clog, 0, NULL, NULL, 473 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 474 CTLTYPE_INT, "posix_threads", 475 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 476 "Threads option to which the system " 477 "attempts to conform"), 478 /* XXX _POSIX_VERSION */ 479 NULL, _POSIX_THREADS, NULL, 0, 480 CTL_KERN, KERN_POSIX_THREADS, CTL_EOL); 481 sysctl_createv(clog, 0, NULL, NULL, 482 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 483 CTLTYPE_INT, "posix_semaphores", 484 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 485 "Semaphores option to which the system " 486 "attempts to conform"), NULL, 487 200112, NULL, 0, 488 CTL_KERN, KERN_POSIX_SEMAPHORES, CTL_EOL); 489 sysctl_createv(clog, 0, NULL, NULL, 490 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 491 CTLTYPE_INT, "posix_barriers", 492 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 493 "Barriers option to which the system " 494 "attempts to conform"), 495 /* XXX _POSIX_VERSION */ 496 NULL, _POSIX_BARRIERS, NULL, 0, 497 CTL_KERN, KERN_POSIX_BARRIERS, CTL_EOL); 498 sysctl_createv(clog, 0, NULL, NULL, 499 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 500 CTLTYPE_INT, "posix_timers", 501 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 502 "Timers option to which the system " 503 "attempts to conform"), 504 /* XXX _POSIX_VERSION */ 505 NULL, _POSIX_TIMERS, NULL, 0, 506 CTL_KERN, KERN_POSIX_TIMERS, CTL_EOL); 507 sysctl_createv(clog, 0, NULL, NULL, 508 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 509 CTLTYPE_INT, "posix_spin_locks", 510 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its Spin " 511 "Locks option to which the system attempts " 512 "to conform"), 513 /* XXX _POSIX_VERSION */ 514 NULL, _POSIX_SPIN_LOCKS, NULL, 0, 515 CTL_KERN, KERN_POSIX_SPIN_LOCKS, CTL_EOL); 516 sysctl_createv(clog, 0, NULL, NULL, 517 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 518 CTLTYPE_INT, "posix_reader_writer_locks", 519 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 520 "Read-Write Locks option to which the " 521 "system attempts to conform"), 522 /* XXX _POSIX_VERSION */ 523 NULL, _POSIX_READER_WRITER_LOCKS, NULL, 0, 524 CTL_KERN, KERN_POSIX_READER_WRITER_LOCKS, CTL_EOL); 525 sysctl_createv(clog, 0, NULL, NULL, 526 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 527 CTLTYPE_INT, "dump_on_panic", 528 SYSCTL_DESCR("Perform a crash dump on system panic"), 529 NULL, 0, &dumponpanic, 0, 530 CTL_KERN, KERN_DUMP_ON_PANIC, CTL_EOL); 531 #ifdef DIAGNOSTIC 532 sysctl_createv(clog, 0, NULL, NULL, 533 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 534 CTLTYPE_INT, "panic_now", 535 SYSCTL_DESCR("Trigger a panic"), 536 sysctl_kern_trigger_panic, 0, NULL, 0, 537 CTL_KERN, CTL_CREATE, CTL_EOL); 538 #endif 539 sysctl_createv(clog, 0, NULL, NULL, 540 CTLFLAG_PERMANENT, 541 CTLTYPE_INT, "root_partition", 542 SYSCTL_DESCR("Root partition on the root device"), 543 sysctl_kern_root_partition, 0, NULL, 0, 544 CTL_KERN, KERN_ROOT_PARTITION, CTL_EOL); 545 sysctl_createv(clog, 0, NULL, NULL, 546 CTLFLAG_PERMANENT, 547 CTLTYPE_STRUCT, "drivers", 548 SYSCTL_DESCR("List of all drivers with block and " 549 "character device numbers"), 550 sysctl_kern_drivers, 0, NULL, 0, 551 CTL_KERN, KERN_DRIVERS, CTL_EOL); 552 sysctl_createv(clog, 0, NULL, NULL, 553 CTLFLAG_PERMANENT, 554 CTLTYPE_STRUCT, "cp_id", 555 SYSCTL_DESCR("Mapping of CPU number to CPU id"), 556 sysctl_kern_cpid, 0, NULL, 0, 557 CTL_KERN, KERN_CP_ID, CTL_EOL); 558 sysctl_createv(clog, 0, NULL, &rnode, 559 CTLFLAG_PERMANENT, 560 CTLTYPE_NODE, "coredump", 561 SYSCTL_DESCR("Coredump settings."), 562 NULL, 0, NULL, 0, 563 CTL_KERN, CTL_CREATE, CTL_EOL); 564 sysctl_createv(clog, 0, &rnode, &rnode, 565 CTLFLAG_PERMANENT, 566 CTLTYPE_NODE, "setid", 567 SYSCTL_DESCR("Set-id processes' coredump settings."), 568 NULL, 0, NULL, 0, 569 CTL_CREATE, CTL_EOL); 570 sysctl_createv(clog, 0, &rnode, NULL, 571 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 572 CTLTYPE_INT, "dump", 573 SYSCTL_DESCR("Allow set-id processes to dump core."), 574 sysctl_security_setidcore, 0, &security_setidcore_dump, 575 sizeof(security_setidcore_dump), 576 CTL_CREATE, CTL_EOL); 577 sysctl_createv(clog, 0, &rnode, NULL, 578 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 579 CTLTYPE_STRING, "path", 580 SYSCTL_DESCR("Path pattern for set-id coredumps."), 581 sysctl_security_setidcorename, 0, 582 security_setidcore_path, 583 sizeof(security_setidcore_path), 584 CTL_CREATE, CTL_EOL); 585 sysctl_createv(clog, 0, &rnode, NULL, 586 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 587 CTLTYPE_INT, "owner", 588 SYSCTL_DESCR("Owner id for set-id processes' cores."), 589 sysctl_security_setidcore, 0, &security_setidcore_owner, 590 0, 591 CTL_CREATE, CTL_EOL); 592 sysctl_createv(clog, 0, &rnode, NULL, 593 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 594 CTLTYPE_INT, "group", 595 SYSCTL_DESCR("Group id for set-id processes' cores."), 596 sysctl_security_setidcore, 0, &security_setidcore_group, 597 0, 598 CTL_CREATE, CTL_EOL); 599 sysctl_createv(clog, 0, &rnode, NULL, 600 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 601 CTLTYPE_INT, "mode", 602 SYSCTL_DESCR("Mode for set-id processes' cores."), 603 sysctl_security_setidcore, 0, &security_setidcore_mode, 604 0, 605 CTL_CREATE, CTL_EOL); 606 sysctl_createv(clog, 0, NULL, NULL, 607 CTLFLAG_IMMEDIATE|CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 608 CTLTYPE_INT, "no_sa_support", 609 SYSCTL_DESCR("0 if the kernel supports SA, otherwise " 610 "it doesn't"), 611 NULL, 1, NULL, 0, 612 CTL_KERN, CTL_CREATE, CTL_EOL); 613 /* kern.posix. */ 614 sysctl_createv(clog, 0, NULL, &rnode, 615 CTLFLAG_PERMANENT, 616 CTLTYPE_NODE, "posix", 617 SYSCTL_DESCR("POSIX options"), 618 NULL, 0, NULL, 0, 619 CTL_KERN, CTL_CREATE, CTL_EOL); 620 sysctl_createv(clog, 0, &rnode, NULL, 621 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, 622 CTLTYPE_INT, "semmax", 623 SYSCTL_DESCR("Maximal number of semaphores"), 624 NULL, 0, &ksem_max, 0, 625 CTL_CREATE, CTL_EOL); 626 sysctl_createv(clog, 0, NULL, NULL, 627 CTLFLAG_PERMANENT, 628 CTLTYPE_STRING, "configname", 629 SYSCTL_DESCR("Name of config file"), 630 NULL, 0, __UNCONST(kernel_ident), 0, 631 CTL_KERN, CTL_CREATE, CTL_EOL); 632 } 633 634 SYSCTL_SETUP(sysctl_hw_setup, "sysctl hw subtree setup") 635 { 636 u_int u; 637 u_quad_t q; 638 639 sysctl_createv(clog, 0, NULL, NULL, 640 CTLFLAG_PERMANENT, 641 CTLTYPE_STRING, "machine", 642 SYSCTL_DESCR("Machine class"), 643 NULL, 0, machine, 0, 644 CTL_HW, HW_MACHINE, CTL_EOL); 645 sysctl_createv(clog, 0, NULL, NULL, 646 CTLFLAG_PERMANENT, 647 CTLTYPE_STRING, "model", 648 SYSCTL_DESCR("Machine model"), 649 NULL, 0, cpu_model, 0, 650 CTL_HW, HW_MODEL, CTL_EOL); 651 sysctl_createv(clog, 0, NULL, NULL, 652 CTLFLAG_PERMANENT, 653 CTLTYPE_INT, "ncpu", 654 SYSCTL_DESCR("Number of CPUs configured"), 655 NULL, 0, &ncpu, 0, 656 CTL_HW, HW_NCPU, CTL_EOL); 657 sysctl_createv(clog, 0, NULL, NULL, 658 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 659 CTLTYPE_INT, "byteorder", 660 SYSCTL_DESCR("System byte order"), 661 NULL, BYTE_ORDER, NULL, 0, 662 CTL_HW, HW_BYTEORDER, CTL_EOL); 663 u = ((u_int)physmem > (UINT_MAX / PAGE_SIZE)) ? 664 UINT_MAX : physmem * PAGE_SIZE; 665 sysctl_createv(clog, 0, NULL, NULL, 666 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 667 CTLTYPE_INT, "physmem", 668 SYSCTL_DESCR("Bytes of physical memory"), 669 NULL, u, NULL, 0, 670 CTL_HW, HW_PHYSMEM, CTL_EOL); 671 sysctl_createv(clog, 0, NULL, NULL, 672 CTLFLAG_PERMANENT, 673 CTLTYPE_INT, "usermem", 674 SYSCTL_DESCR("Bytes of non-kernel memory"), 675 sysctl_hw_usermem, 0, NULL, 0, 676 CTL_HW, HW_USERMEM, CTL_EOL); 677 sysctl_createv(clog, 0, NULL, NULL, 678 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 679 CTLTYPE_INT, "pagesize", 680 SYSCTL_DESCR("Software page size"), 681 NULL, PAGE_SIZE, NULL, 0, 682 CTL_HW, HW_PAGESIZE, CTL_EOL); 683 sysctl_createv(clog, 0, NULL, NULL, 684 CTLFLAG_PERMANENT, 685 CTLTYPE_STRING, "machine_arch", 686 SYSCTL_DESCR("Machine CPU class"), 687 NULL, 0, machine_arch, 0, 688 CTL_HW, HW_MACHINE_ARCH, CTL_EOL); 689 sysctl_createv(clog, 0, NULL, NULL, 690 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 691 CTLTYPE_INT, "alignbytes", 692 SYSCTL_DESCR("Alignment constraint for all possible " 693 "data types"), 694 NULL, ALIGNBYTES, NULL, 0, 695 CTL_HW, HW_ALIGNBYTES, CTL_EOL); 696 sysctl_createv(clog, 0, NULL, NULL, 697 CTLFLAG_PERMANENT|CTLFLAG_READWRITE|CTLFLAG_HEX, 698 CTLTYPE_STRING, "cnmagic", 699 SYSCTL_DESCR("Console magic key sequence"), 700 sysctl_hw_cnmagic, 0, NULL, CNS_LEN, 701 CTL_HW, HW_CNMAGIC, CTL_EOL); 702 q = (u_quad_t)physmem * PAGE_SIZE; 703 sysctl_createv(clog, 0, NULL, NULL, 704 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 705 CTLTYPE_QUAD, "physmem64", 706 SYSCTL_DESCR("Bytes of physical memory"), 707 NULL, q, NULL, 0, 708 CTL_HW, HW_PHYSMEM64, CTL_EOL); 709 sysctl_createv(clog, 0, NULL, NULL, 710 CTLFLAG_PERMANENT, 711 CTLTYPE_QUAD, "usermem64", 712 SYSCTL_DESCR("Bytes of non-kernel memory"), 713 sysctl_hw_usermem, 0, NULL, 0, 714 CTL_HW, HW_USERMEM64, CTL_EOL); 715 sysctl_createv(clog, 0, NULL, NULL, 716 CTLFLAG_PERMANENT, 717 CTLTYPE_INT, "ncpuonline", 718 SYSCTL_DESCR("Number of CPUs online"), 719 NULL, 0, &ncpuonline, 0, 720 CTL_HW, HW_NCPUONLINE, CTL_EOL); 721 } 722 723 #ifdef DEBUG 724 /* 725 * Debugging related system variables. 726 */ 727 struct ctldebug /* debug0, */ /* debug1, */ debug2, debug3, debug4; 728 struct ctldebug debug5, debug6, debug7, debug8, debug9; 729 struct ctldebug debug10, debug11, debug12, debug13, debug14; 730 struct ctldebug debug15, debug16, debug17, debug18, debug19; 731 static struct ctldebug *debugvars[CTL_DEBUG_MAXID] = { 732 &debug0, &debug1, &debug2, &debug3, &debug4, 733 &debug5, &debug6, &debug7, &debug8, &debug9, 734 &debug10, &debug11, &debug12, &debug13, &debug14, 735 &debug15, &debug16, &debug17, &debug18, &debug19, 736 }; 737 738 /* 739 * this setup routine is a replacement for debug_sysctl() 740 * 741 * note that it creates several nodes per defined debug variable 742 */ 743 SYSCTL_SETUP(sysctl_debug_setup, "sysctl debug subtree setup") 744 { 745 struct ctldebug *cdp; 746 char nodename[20]; 747 int i; 748 749 /* 750 * two ways here: 751 * 752 * the "old" way (debug.name -> value) which was emulated by 753 * the sysctl(8) binary 754 * 755 * the new way, which the sysctl(8) binary was actually using 756 757 node debug 758 node debug.0 759 string debug.0.name 760 int debug.0.value 761 int debug.name 762 763 */ 764 765 for (i = 0; i < CTL_DEBUG_MAXID; i++) { 766 cdp = debugvars[i]; 767 if (cdp->debugname == NULL || cdp->debugvar == NULL) 768 continue; 769 770 snprintf(nodename, sizeof(nodename), "debug%d", i); 771 sysctl_createv(clog, 0, NULL, NULL, 772 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 773 CTLTYPE_NODE, nodename, NULL, 774 NULL, 0, NULL, 0, 775 CTL_DEBUG, i, CTL_EOL); 776 sysctl_createv(clog, 0, NULL, NULL, 777 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 778 CTLTYPE_STRING, "name", NULL, 779 /*XXXUNCONST*/ 780 NULL, 0, __UNCONST(cdp->debugname), 0, 781 CTL_DEBUG, i, CTL_DEBUG_NAME, CTL_EOL); 782 sysctl_createv(clog, 0, NULL, NULL, 783 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 784 CTLTYPE_INT, "value", NULL, 785 NULL, 0, cdp->debugvar, 0, 786 CTL_DEBUG, i, CTL_DEBUG_VALUE, CTL_EOL); 787 sysctl_createv(clog, 0, NULL, NULL, 788 CTLFLAG_PERMANENT, 789 CTLTYPE_INT, cdp->debugname, NULL, 790 NULL, 0, cdp->debugvar, 0, 791 CTL_DEBUG, CTL_CREATE, CTL_EOL); 792 } 793 } 794 #endif /* DEBUG */ 795 796 /* 797 * ******************************************************************** 798 * section 2: private node-specific helper routines. 799 * ******************************************************************** 800 */ 801 802 #ifdef DIAGNOSTIC 803 static int 804 sysctl_kern_trigger_panic(SYSCTLFN_ARGS) 805 { 806 int newtrig, error; 807 struct sysctlnode node; 808 809 newtrig = 0; 810 node = *rnode; 811 node.sysctl_data = &newtrig; 812 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 813 if (error || newp == NULL) 814 return (error); 815 816 if (newtrig != 0) 817 panic("Panic triggered"); 818 819 return (error); 820 } 821 #endif 822 823 /* 824 * sysctl helper routine for kern.maxvnodes. Drain vnodes if 825 * new value is lower than desiredvnodes and then calls reinit 826 * routines that needs to adjust to the new value. 827 */ 828 static int 829 sysctl_kern_maxvnodes(SYSCTLFN_ARGS) 830 { 831 int error, new_vnodes, old_vnodes, new_max; 832 struct sysctlnode node; 833 834 new_vnodes = desiredvnodes; 835 node = *rnode; 836 node.sysctl_data = &new_vnodes; 837 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 838 if (error || newp == NULL) 839 return (error); 840 841 /* 842 * sysctl passes down unsigned values, require them 843 * to be positive 844 */ 845 if (new_vnodes <= 0) 846 return (EINVAL); 847 848 /* Limits: 75% of kmem and physical memory. */ 849 new_max = calc_cache_size(vmem_size(kmem_arena, VMEM_FREE|VMEM_ALLOC), 850 75, 75) / VNODE_COST; 851 if (new_vnodes > new_max) 852 new_vnodes = new_max; 853 854 old_vnodes = desiredvnodes; 855 desiredvnodes = new_vnodes; 856 if (new_vnodes < old_vnodes) { 857 error = vfs_drainvnodes(new_vnodes); 858 if (error) { 859 desiredvnodes = old_vnodes; 860 return (error); 861 } 862 } 863 vfs_reinit(); 864 nchreinit(); 865 866 return (0); 867 } 868 869 /* 870 * sysctl helper routine for rtc_offset - set time after changes 871 */ 872 static int 873 sysctl_kern_rtc_offset(SYSCTLFN_ARGS) 874 { 875 struct timespec ts, delta; 876 int error, new_rtc_offset; 877 struct sysctlnode node; 878 879 new_rtc_offset = rtc_offset; 880 node = *rnode; 881 node.sysctl_data = &new_rtc_offset; 882 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 883 if (error || newp == NULL) 884 return (error); 885 886 if (kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_TIME, 887 KAUTH_REQ_SYSTEM_TIME_RTCOFFSET, 888 KAUTH_ARG(new_rtc_offset), NULL, NULL)) 889 return (EPERM); 890 if (rtc_offset == new_rtc_offset) 891 return (0); 892 893 /* if we change the offset, adjust the time */ 894 nanotime(&ts); 895 delta.tv_sec = 60 * (new_rtc_offset - rtc_offset); 896 delta.tv_nsec = 0; 897 timespecadd(&ts, &delta, &ts); 898 rtc_offset = new_rtc_offset; 899 return (settime(l->l_proc, &ts)); 900 } 901 902 /* 903 * sysctl helper routine for kern.maxproc. Ensures that the new 904 * values are not too low or too high. 905 */ 906 static int 907 sysctl_kern_maxproc(SYSCTLFN_ARGS) 908 { 909 int error, nmaxproc; 910 struct sysctlnode node; 911 912 nmaxproc = maxproc; 913 node = *rnode; 914 node.sysctl_data = &nmaxproc; 915 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 916 if (error || newp == NULL) 917 return (error); 918 919 if (nmaxproc < 0 || nmaxproc >= PID_MAX) 920 return (EINVAL); 921 #ifdef __HAVE_CPU_MAXPROC 922 if (nmaxproc > cpu_maxproc()) 923 return (EINVAL); 924 #endif 925 maxproc = nmaxproc; 926 927 return (0); 928 } 929 930 /* 931 * sysctl helper function for kern.hostid. The hostid is a long, but 932 * we export it as an int, so we need to give it a little help. 933 */ 934 static int 935 sysctl_kern_hostid(SYSCTLFN_ARGS) 936 { 937 int error, inthostid; 938 struct sysctlnode node; 939 940 inthostid = hostid; /* XXX assumes sizeof int <= sizeof long */ 941 node = *rnode; 942 node.sysctl_data = &inthostid; 943 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 944 if (error || newp == NULL) 945 return (error); 946 947 hostid = (unsigned)inthostid; 948 949 return (0); 950 } 951 952 /* 953 * sysctl helper routine for kern.clockrate. Assembles a struct on 954 * the fly to be returned to the caller. 955 */ 956 static int 957 sysctl_kern_clockrate(SYSCTLFN_ARGS) 958 { 959 struct clockinfo clkinfo; 960 struct sysctlnode node; 961 962 clkinfo.tick = tick; 963 clkinfo.tickadj = tickadj; 964 clkinfo.hz = hz; 965 clkinfo.profhz = profhz; 966 clkinfo.stathz = stathz ? stathz : hz; 967 968 node = *rnode; 969 node.sysctl_data = &clkinfo; 970 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 971 } 972 973 /* 974 * sysctl helper routine for kern.msgbufsize and kern.msgbuf. For the 975 * former it merely checks the message buffer is set up. For the latter, 976 * it also copies out the data if necessary. 977 */ 978 static int 979 sysctl_msgbuf(SYSCTLFN_ARGS) 980 { 981 char *where = oldp; 982 size_t len, maxlen; 983 long beg, end; 984 extern kmutex_t log_lock; 985 int error; 986 987 if (!msgbufenabled || msgbufp->msg_magic != MSG_MAGIC) { 988 msgbufenabled = 0; 989 return (ENXIO); 990 } 991 992 switch (rnode->sysctl_num) { 993 case KERN_MSGBUFSIZE: { 994 struct sysctlnode node = *rnode; 995 int msg_bufs = (int)msgbufp->msg_bufs; 996 node.sysctl_data = &msg_bufs; 997 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 998 } 999 case KERN_MSGBUF: 1000 break; 1001 default: 1002 return (EOPNOTSUPP); 1003 } 1004 1005 if (newp != NULL) 1006 return (EPERM); 1007 1008 if (oldp == NULL) { 1009 /* always return full buffer size */ 1010 *oldlenp = msgbufp->msg_bufs; 1011 return (0); 1012 } 1013 1014 sysctl_unlock(); 1015 1016 /* 1017 * First, copy from the write pointer to the end of 1018 * message buffer. 1019 */ 1020 error = 0; 1021 mutex_spin_enter(&log_lock); 1022 maxlen = MIN(msgbufp->msg_bufs, *oldlenp); 1023 beg = msgbufp->msg_bufx; 1024 end = msgbufp->msg_bufs; 1025 mutex_spin_exit(&log_lock); 1026 1027 while (maxlen > 0) { 1028 len = MIN(end - beg, maxlen); 1029 if (len == 0) 1030 break; 1031 /* XXX unlocked, but hardly matters. */ 1032 error = dcopyout(l, &msgbufp->msg_bufc[beg], where, len); 1033 if (error) 1034 break; 1035 where += len; 1036 maxlen -= len; 1037 1038 /* 1039 * ... then, copy from the beginning of message buffer to 1040 * the write pointer. 1041 */ 1042 beg = 0; 1043 end = msgbufp->msg_bufx; 1044 } 1045 1046 sysctl_relock(); 1047 return (error); 1048 } 1049 1050 /* 1051 * sysctl helper routine for kern.defcorename. In the case of a new 1052 * string being assigned, check that it's not a zero-length string. 1053 * (XXX the check in -current doesn't work, but do we really care?) 1054 */ 1055 static int 1056 sysctl_kern_defcorename(SYSCTLFN_ARGS) 1057 { 1058 int error; 1059 char *newcorename; 1060 struct sysctlnode node; 1061 1062 newcorename = PNBUF_GET(); 1063 node = *rnode; 1064 node.sysctl_data = &newcorename[0]; 1065 memcpy(node.sysctl_data, rnode->sysctl_data, MAXPATHLEN); 1066 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1067 if (error || newp == NULL) { 1068 goto done; 1069 } 1070 1071 /* 1072 * when sysctl_lookup() deals with a string, it's guaranteed 1073 * to come back nul terminated. So there. :) 1074 */ 1075 if (strlen(newcorename) == 0) { 1076 error = EINVAL; 1077 } else { 1078 memcpy(rnode->sysctl_data, node.sysctl_data, MAXPATHLEN); 1079 error = 0; 1080 } 1081 done: 1082 PNBUF_PUT(newcorename); 1083 return error; 1084 } 1085 1086 /* 1087 * sysctl helper routine for kern.cp_time node. Adds up cpu time 1088 * across all cpus. 1089 */ 1090 static int 1091 sysctl_kern_cptime(SYSCTLFN_ARGS) 1092 { 1093 struct sysctlnode node = *rnode; 1094 uint64_t *cp_time = NULL; 1095 int error, n = ncpu, i; 1096 struct cpu_info *ci; 1097 CPU_INFO_ITERATOR cii; 1098 1099 /* 1100 * if you specifically pass a buffer that is the size of the 1101 * sum, or if you are probing for the size, you get the "sum" 1102 * of cp_time (and the size thereof) across all processors. 1103 * 1104 * alternately, you can pass an additional mib number and get 1105 * cp_time for that particular processor. 1106 */ 1107 switch (namelen) { 1108 case 0: 1109 if (*oldlenp == sizeof(uint64_t) * CPUSTATES || oldp == NULL) { 1110 node.sysctl_size = sizeof(uint64_t) * CPUSTATES; 1111 n = -1; /* SUM */ 1112 } 1113 else { 1114 node.sysctl_size = n * sizeof(uint64_t) * CPUSTATES; 1115 n = -2; /* ALL */ 1116 } 1117 break; 1118 case 1: 1119 if (name[0] < 0 || name[0] >= n) 1120 return (ENOENT); /* ENOSUCHPROCESSOR */ 1121 node.sysctl_size = sizeof(uint64_t) * CPUSTATES; 1122 n = name[0]; 1123 /* 1124 * adjust these so that sysctl_lookup() will be happy 1125 */ 1126 name++; 1127 namelen--; 1128 break; 1129 default: 1130 return (EINVAL); 1131 } 1132 1133 cp_time = kmem_alloc(node.sysctl_size, KM_SLEEP); 1134 if (cp_time == NULL) 1135 return (ENOMEM); 1136 node.sysctl_data = cp_time; 1137 memset(cp_time, 0, node.sysctl_size); 1138 1139 for (CPU_INFO_FOREACH(cii, ci)) { 1140 if (n <= 0) { 1141 for (i = 0; i < CPUSTATES; i++) { 1142 cp_time[i] += ci->ci_schedstate.spc_cp_time[i]; 1143 } 1144 } 1145 /* 1146 * if a specific processor was requested and we just 1147 * did it, we're done here 1148 */ 1149 if (n == 0) 1150 break; 1151 /* 1152 * if doing "all", skip to next cp_time set for next processor 1153 */ 1154 if (n == -2) 1155 cp_time += CPUSTATES; 1156 /* 1157 * if we're doing a specific processor, we're one 1158 * processor closer 1159 */ 1160 if (n > 0) 1161 n--; 1162 } 1163 1164 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1165 kmem_free(node.sysctl_data, node.sysctl_size); 1166 return (error); 1167 } 1168 1169 #if NPTY > 0 1170 /* 1171 * sysctl helper routine for kern.maxptys. Ensures that any new value 1172 * is acceptable to the pty subsystem. 1173 */ 1174 static int 1175 sysctl_kern_maxptys(SYSCTLFN_ARGS) 1176 { 1177 int pty_maxptys(int, int); /* defined in kern/tty_pty.c */ 1178 int error, xmax; 1179 struct sysctlnode node; 1180 1181 /* get current value of maxptys */ 1182 xmax = pty_maxptys(0, 0); 1183 1184 node = *rnode; 1185 node.sysctl_data = &xmax; 1186 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1187 if (error || newp == NULL) 1188 return (error); 1189 1190 if (xmax != pty_maxptys(xmax, 1)) 1191 return (EINVAL); 1192 1193 return (0); 1194 } 1195 #endif /* NPTY > 0 */ 1196 1197 /* 1198 * sysctl helper routine to do kern.lwp.* work. 1199 */ 1200 static int 1201 sysctl_kern_lwp(SYSCTLFN_ARGS) 1202 { 1203 struct kinfo_lwp klwp; 1204 struct proc *p; 1205 struct lwp *l2, *l3; 1206 char *where, *dp; 1207 int pid, elem_size, elem_count; 1208 int buflen, needed, error; 1209 bool gotit; 1210 1211 if (namelen == 1 && name[0] == CTL_QUERY) 1212 return (sysctl_query(SYSCTLFN_CALL(rnode))); 1213 1214 dp = where = oldp; 1215 buflen = where != NULL ? *oldlenp : 0; 1216 error = needed = 0; 1217 1218 if (newp != NULL || namelen != 3) 1219 return (EINVAL); 1220 pid = name[0]; 1221 elem_size = name[1]; 1222 elem_count = name[2]; 1223 1224 sysctl_unlock(); 1225 if (pid == -1) { 1226 mutex_enter(proc_lock); 1227 PROCLIST_FOREACH(p, &allproc) { 1228 /* Grab a hold on the process. */ 1229 if (!rw_tryenter(&p->p_reflock, RW_READER)) { 1230 continue; 1231 } 1232 mutex_exit(proc_lock); 1233 1234 mutex_enter(p->p_lock); 1235 LIST_FOREACH(l2, &p->p_lwps, l_sibling) { 1236 if (buflen >= elem_size && elem_count > 0) { 1237 lwp_lock(l2); 1238 fill_lwp(l2, &klwp); 1239 lwp_unlock(l2); 1240 mutex_exit(p->p_lock); 1241 1242 /* 1243 * Copy out elem_size, but not 1244 * larger than the size of a 1245 * struct kinfo_proc2. 1246 */ 1247 error = dcopyout(l, &klwp, dp, 1248 min(sizeof(klwp), elem_size)); 1249 if (error) { 1250 rw_exit(&p->p_reflock); 1251 goto cleanup; 1252 } 1253 mutex_enter(p->p_lock); 1254 LIST_FOREACH(l3, &p->p_lwps, 1255 l_sibling) { 1256 if (l2 == l3) 1257 break; 1258 } 1259 if (l3 == NULL) { 1260 mutex_exit(p->p_lock); 1261 rw_exit(&p->p_reflock); 1262 error = EAGAIN; 1263 goto cleanup; 1264 } 1265 dp += elem_size; 1266 buflen -= elem_size; 1267 elem_count--; 1268 } 1269 needed += elem_size; 1270 } 1271 mutex_exit(p->p_lock); 1272 1273 /* Drop reference to process. */ 1274 mutex_enter(proc_lock); 1275 rw_exit(&p->p_reflock); 1276 } 1277 mutex_exit(proc_lock); 1278 } else { 1279 mutex_enter(proc_lock); 1280 p = proc_find(pid); 1281 if (p == NULL) { 1282 error = ESRCH; 1283 mutex_exit(proc_lock); 1284 goto cleanup; 1285 } 1286 /* Grab a hold on the process. */ 1287 gotit = rw_tryenter(&p->p_reflock, RW_READER); 1288 mutex_exit(proc_lock); 1289 if (!gotit) { 1290 error = ESRCH; 1291 goto cleanup; 1292 } 1293 1294 mutex_enter(p->p_lock); 1295 LIST_FOREACH(l2, &p->p_lwps, l_sibling) { 1296 if (buflen >= elem_size && elem_count > 0) { 1297 lwp_lock(l2); 1298 fill_lwp(l2, &klwp); 1299 lwp_unlock(l2); 1300 mutex_exit(p->p_lock); 1301 /* 1302 * Copy out elem_size, but not larger than 1303 * the size of a struct kinfo_proc2. 1304 */ 1305 error = dcopyout(l, &klwp, dp, 1306 min(sizeof(klwp), elem_size)); 1307 if (error) { 1308 rw_exit(&p->p_reflock); 1309 goto cleanup; 1310 } 1311 mutex_enter(p->p_lock); 1312 LIST_FOREACH(l3, &p->p_lwps, l_sibling) { 1313 if (l2 == l3) 1314 break; 1315 } 1316 if (l3 == NULL) { 1317 mutex_exit(p->p_lock); 1318 rw_exit(&p->p_reflock); 1319 error = EAGAIN; 1320 goto cleanup; 1321 } 1322 dp += elem_size; 1323 buflen -= elem_size; 1324 elem_count--; 1325 } 1326 needed += elem_size; 1327 } 1328 mutex_exit(p->p_lock); 1329 1330 /* Drop reference to process. */ 1331 rw_exit(&p->p_reflock); 1332 } 1333 1334 if (where != NULL) { 1335 *oldlenp = dp - where; 1336 if (needed > *oldlenp) { 1337 sysctl_relock(); 1338 return (ENOMEM); 1339 } 1340 } else { 1341 needed += KERN_LWPSLOP; 1342 *oldlenp = needed; 1343 } 1344 error = 0; 1345 cleanup: 1346 sysctl_relock(); 1347 return (error); 1348 } 1349 1350 /* 1351 * sysctl helper routine for kern.forkfsleep node. Ensures that the 1352 * given value is not too large or two small, and is at least one 1353 * timer tick if not zero. 1354 */ 1355 static int 1356 sysctl_kern_forkfsleep(SYSCTLFN_ARGS) 1357 { 1358 /* userland sees value in ms, internally is in ticks */ 1359 extern int forkfsleep; /* defined in kern/kern_fork.c */ 1360 int error, timo, lsleep; 1361 struct sysctlnode node; 1362 1363 lsleep = forkfsleep * 1000 / hz; 1364 node = *rnode; 1365 node.sysctl_data = &lsleep; 1366 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1367 if (error || newp == NULL) 1368 return (error); 1369 1370 /* refuse negative values, and overly 'long time' */ 1371 if (lsleep < 0 || lsleep > MAXSLP * 1000) 1372 return (EINVAL); 1373 1374 timo = mstohz(lsleep); 1375 1376 /* if the interval is >0 ms && <1 tick, use 1 tick */ 1377 if (lsleep != 0 && timo == 0) 1378 forkfsleep = 1; 1379 else 1380 forkfsleep = timo; 1381 1382 return (0); 1383 } 1384 1385 /* 1386 * sysctl helper routine for kern.root_partition 1387 */ 1388 static int 1389 sysctl_kern_root_partition(SYSCTLFN_ARGS) 1390 { 1391 int rootpart = DISKPART(rootdev); 1392 struct sysctlnode node = *rnode; 1393 1394 node.sysctl_data = &rootpart; 1395 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1396 } 1397 1398 /* 1399 * sysctl helper function for kern.drivers 1400 */ 1401 static int 1402 sysctl_kern_drivers(SYSCTLFN_ARGS) 1403 { 1404 int error; 1405 size_t buflen; 1406 struct kinfo_drivers kd; 1407 char *start, *where; 1408 const char *dname; 1409 int i; 1410 extern struct devsw_conv *devsw_conv; 1411 extern int max_devsw_convs; 1412 1413 start = where = oldp; 1414 buflen = *oldlenp; 1415 if (where == NULL) { 1416 *oldlenp = max_devsw_convs * sizeof kd; 1417 return 0; 1418 } 1419 1420 /* 1421 * An array of kinfo_drivers structures 1422 */ 1423 error = 0; 1424 sysctl_unlock(); 1425 mutex_enter(&device_lock); 1426 for (i = 0; i < max_devsw_convs; i++) { 1427 dname = devsw_conv[i].d_name; 1428 if (dname == NULL) 1429 continue; 1430 if (buflen < sizeof kd) { 1431 error = ENOMEM; 1432 break; 1433 } 1434 memset(&kd, 0, sizeof(kd)); 1435 kd.d_bmajor = devsw_conv[i].d_bmajor; 1436 kd.d_cmajor = devsw_conv[i].d_cmajor; 1437 strlcpy(kd.d_name, dname, sizeof kd.d_name); 1438 mutex_exit(&device_lock); 1439 error = dcopyout(l, &kd, where, sizeof kd); 1440 mutex_enter(&device_lock); 1441 if (error != 0) 1442 break; 1443 buflen -= sizeof kd; 1444 where += sizeof kd; 1445 } 1446 mutex_exit(&device_lock); 1447 sysctl_relock(); 1448 *oldlenp = where - start; 1449 return error; 1450 } 1451 1452 static int 1453 sysctl_security_setidcore(SYSCTLFN_ARGS) 1454 { 1455 int newsize, error; 1456 struct sysctlnode node; 1457 1458 node = *rnode; 1459 node.sysctl_data = &newsize; 1460 newsize = *(int *)rnode->sysctl_data; 1461 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1462 if (error || newp == NULL) 1463 return error; 1464 1465 if (kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_SETIDCORE, 1466 0, NULL, NULL, NULL)) 1467 return (EPERM); 1468 1469 *(int *)rnode->sysctl_data = newsize; 1470 1471 return 0; 1472 } 1473 1474 static int 1475 sysctl_security_setidcorename(SYSCTLFN_ARGS) 1476 { 1477 int error; 1478 char *newsetidcorename; 1479 struct sysctlnode node; 1480 1481 newsetidcorename = PNBUF_GET(); 1482 node = *rnode; 1483 node.sysctl_data = newsetidcorename; 1484 memcpy(node.sysctl_data, rnode->sysctl_data, MAXPATHLEN); 1485 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1486 if (error || newp == NULL) { 1487 goto out; 1488 } 1489 if (kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_SETIDCORE, 1490 0, NULL, NULL, NULL)) { 1491 error = EPERM; 1492 goto out; 1493 } 1494 if (strlen(newsetidcorename) == 0) { 1495 error = EINVAL; 1496 goto out; 1497 } 1498 memcpy(rnode->sysctl_data, node.sysctl_data, MAXPATHLEN); 1499 out: 1500 PNBUF_PUT(newsetidcorename); 1501 return error; 1502 } 1503 1504 /* 1505 * sysctl helper routine for kern.cp_id node. Maps cpus to their 1506 * cpuids. 1507 */ 1508 static int 1509 sysctl_kern_cpid(SYSCTLFN_ARGS) 1510 { 1511 struct sysctlnode node = *rnode; 1512 uint64_t *cp_id = NULL; 1513 int error, n = ncpu; 1514 struct cpu_info *ci; 1515 CPU_INFO_ITERATOR cii; 1516 1517 /* 1518 * Here you may either retrieve a single cpu id or the whole 1519 * set. The size you get back when probing depends on what 1520 * you ask for. 1521 */ 1522 switch (namelen) { 1523 case 0: 1524 node.sysctl_size = n * sizeof(uint64_t); 1525 n = -2; /* ALL */ 1526 break; 1527 case 1: 1528 if (name[0] < 0 || name[0] >= n) 1529 return (ENOENT); /* ENOSUCHPROCESSOR */ 1530 node.sysctl_size = sizeof(uint64_t); 1531 n = name[0]; 1532 /* 1533 * adjust these so that sysctl_lookup() will be happy 1534 */ 1535 name++; 1536 namelen--; 1537 break; 1538 default: 1539 return (EINVAL); 1540 } 1541 1542 cp_id = kmem_alloc(node.sysctl_size, KM_SLEEP); 1543 if (cp_id == NULL) 1544 return (ENOMEM); 1545 node.sysctl_data = cp_id; 1546 memset(cp_id, 0, node.sysctl_size); 1547 1548 for (CPU_INFO_FOREACH(cii, ci)) { 1549 if (n <= 0) 1550 cp_id[0] = cpu_index(ci); 1551 /* 1552 * if a specific processor was requested and we just 1553 * did it, we're done here 1554 */ 1555 if (n == 0) 1556 break; 1557 /* 1558 * if doing "all", skip to next cp_id slot for next processor 1559 */ 1560 if (n == -2) 1561 cp_id++; 1562 /* 1563 * if we're doing a specific processor, we're one 1564 * processor closer 1565 */ 1566 if (n > 0) 1567 n--; 1568 } 1569 1570 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1571 kmem_free(node.sysctl_data, node.sysctl_size); 1572 return (error); 1573 } 1574 1575 /* 1576 * sysctl helper routine for hw.usermem and hw.usermem64. Values are 1577 * calculate on the fly taking into account integer overflow and the 1578 * current wired count. 1579 */ 1580 static int 1581 sysctl_hw_usermem(SYSCTLFN_ARGS) 1582 { 1583 u_int ui; 1584 u_quad_t uq; 1585 struct sysctlnode node; 1586 1587 node = *rnode; 1588 switch (rnode->sysctl_num) { 1589 case HW_USERMEM: 1590 if ((ui = physmem - uvmexp.wired) > (UINT_MAX / PAGE_SIZE)) 1591 ui = UINT_MAX; 1592 else 1593 ui *= PAGE_SIZE; 1594 node.sysctl_data = &ui; 1595 break; 1596 case HW_USERMEM64: 1597 uq = (u_quad_t)(physmem - uvmexp.wired) * PAGE_SIZE; 1598 node.sysctl_data = &uq; 1599 break; 1600 default: 1601 return (EINVAL); 1602 } 1603 1604 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1605 } 1606 1607 /* 1608 * sysctl helper routine for kern.cnmagic node. Pulls the old value 1609 * out, encoded, and stuffs the new value in for decoding. 1610 */ 1611 static int 1612 sysctl_hw_cnmagic(SYSCTLFN_ARGS) 1613 { 1614 char magic[CNS_LEN]; 1615 int error; 1616 struct sysctlnode node; 1617 1618 if (oldp) 1619 cn_get_magic(magic, CNS_LEN); 1620 node = *rnode; 1621 node.sysctl_data = &magic[0]; 1622 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1623 if (error || newp == NULL) 1624 return (error); 1625 1626 return (cn_set_magic(magic)); 1627 } 1628 1629 /* 1630 * ******************************************************************** 1631 * section 3: public helper routines that are used for more than one 1632 * node 1633 * ******************************************************************** 1634 */ 1635 1636 /* 1637 * sysctl helper routine for the kern.root_device node and some ports' 1638 * machdep.root_device nodes. 1639 */ 1640 int 1641 sysctl_root_device(SYSCTLFN_ARGS) 1642 { 1643 struct sysctlnode node; 1644 1645 node = *rnode; 1646 node.sysctl_data = __UNCONST(device_xname(root_device)); 1647 node.sysctl_size = strlen(device_xname(root_device)) + 1; 1648 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1649 } 1650 1651 /* 1652 * sysctl helper routine for kern.consdev, dependent on the current 1653 * state of the console. Also used for machdep.console_device on some 1654 * ports. 1655 */ 1656 int 1657 sysctl_consdev(SYSCTLFN_ARGS) 1658 { 1659 dev_t consdev; 1660 uint32_t oconsdev; 1661 struct sysctlnode node; 1662 1663 if (cn_tab != NULL) 1664 consdev = cn_tab->cn_dev; 1665 else 1666 consdev = NODEV; 1667 node = *rnode; 1668 switch (*oldlenp) { 1669 case sizeof(consdev): 1670 node.sysctl_data = &consdev; 1671 node.sysctl_size = sizeof(consdev); 1672 break; 1673 case sizeof(oconsdev): 1674 oconsdev = (uint32_t)consdev; 1675 node.sysctl_data = &oconsdev; 1676 node.sysctl_size = sizeof(oconsdev); 1677 break; 1678 default: 1679 return EINVAL; 1680 } 1681 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1682 } 1683 1684 /* 1685 * ******************************************************************** 1686 * section 4: support for some helpers 1687 * ******************************************************************** 1688 */ 1689 1690 1691 /* 1692 * Fill in a kinfo_lwp structure for the specified lwp. 1693 */ 1694 static void 1695 fill_lwp(struct lwp *l, struct kinfo_lwp *kl) 1696 { 1697 struct proc *p = l->l_proc; 1698 struct timeval tv; 1699 1700 KASSERT(lwp_locked(l, NULL)); 1701 1702 memset(kl, 0, sizeof(*kl)); 1703 1704 kl->l_forw = 0; 1705 kl->l_back = 0; 1706 kl->l_laddr = PTRTOUINT64(l); 1707 kl->l_addr = PTRTOUINT64(l->l_addr); 1708 kl->l_stat = l->l_stat; 1709 kl->l_lid = l->l_lid; 1710 kl->l_flag = L_INMEM; 1711 kl->l_flag |= sysctl_map_flags(sysctl_lwpprflagmap, l->l_prflag); 1712 kl->l_flag |= sysctl_map_flags(sysctl_lwpflagmap, l->l_flag); 1713 1714 kl->l_swtime = l->l_swtime; 1715 kl->l_slptime = l->l_slptime; 1716 if (l->l_stat == LSONPROC) 1717 kl->l_schedflags = l->l_cpu->ci_schedstate.spc_flags; 1718 else 1719 kl->l_schedflags = 0; 1720 kl->l_priority = lwp_eprio(l); 1721 kl->l_usrpri = l->l_priority; 1722 if (l->l_wchan) 1723 strncpy(kl->l_wmesg, l->l_wmesg, sizeof(kl->l_wmesg)); 1724 kl->l_wchan = PTRTOUINT64(l->l_wchan); 1725 kl->l_cpuid = cpu_index(l->l_cpu); 1726 bintime2timeval(&l->l_rtime, &tv); 1727 kl->l_rtime_sec = tv.tv_sec; 1728 kl->l_rtime_usec = tv.tv_usec; 1729 kl->l_cpticks = l->l_cpticks; 1730 kl->l_pctcpu = l->l_pctcpu; 1731 kl->l_pid = p->p_pid; 1732 if (l->l_name == NULL) 1733 kl->l_name[0] = '\0'; 1734 else 1735 strlcpy(kl->l_name, l->l_name, sizeof(kl->l_name)); 1736 } 1737
Indexes created Wed Oct 01 15:09:59 GMT 2025