init_sysctl.c revision 1.202
1 /* $NetBSD: init_sysctl.c,v 1.202 2014/03/24 20:07:41 christos 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 1.202 2014/03/24 20:07:41 christos 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 const char *model = cpu_getmodel(); 639 640 sysctl_createv(clog, 0, NULL, NULL, 641 CTLFLAG_PERMANENT, 642 CTLTYPE_STRING, "machine", 643 SYSCTL_DESCR("Machine class"), 644 NULL, 0, machine, 0, 645 CTL_HW, HW_MACHINE, CTL_EOL); 646 sysctl_createv(clog, 0, NULL, NULL, 647 CTLFLAG_PERMANENT, 648 CTLTYPE_STRING, "model", 649 SYSCTL_DESCR("Machine model"), 650 NULL, 0, __UNCONST(model), 0, 651 CTL_HW, HW_MODEL, CTL_EOL); 652 sysctl_createv(clog, 0, NULL, NULL, 653 CTLFLAG_PERMANENT, 654 CTLTYPE_INT, "ncpu", 655 SYSCTL_DESCR("Number of CPUs configured"), 656 NULL, 0, &ncpu, 0, 657 CTL_HW, HW_NCPU, CTL_EOL); 658 sysctl_createv(clog, 0, NULL, NULL, 659 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 660 CTLTYPE_INT, "byteorder", 661 SYSCTL_DESCR("System byte order"), 662 NULL, BYTE_ORDER, NULL, 0, 663 CTL_HW, HW_BYTEORDER, CTL_EOL); 664 u = ((u_int)physmem > (UINT_MAX / PAGE_SIZE)) ? 665 UINT_MAX : physmem * PAGE_SIZE; 666 sysctl_createv(clog, 0, NULL, NULL, 667 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 668 CTLTYPE_INT, "physmem", 669 SYSCTL_DESCR("Bytes of physical memory"), 670 NULL, u, NULL, 0, 671 CTL_HW, HW_PHYSMEM, CTL_EOL); 672 sysctl_createv(clog, 0, NULL, NULL, 673 CTLFLAG_PERMANENT, 674 CTLTYPE_INT, "usermem", 675 SYSCTL_DESCR("Bytes of non-kernel memory"), 676 sysctl_hw_usermem, 0, NULL, 0, 677 CTL_HW, HW_USERMEM, CTL_EOL); 678 sysctl_createv(clog, 0, NULL, NULL, 679 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 680 CTLTYPE_INT, "pagesize", 681 SYSCTL_DESCR("Software page size"), 682 NULL, PAGE_SIZE, NULL, 0, 683 CTL_HW, HW_PAGESIZE, CTL_EOL); 684 sysctl_createv(clog, 0, NULL, NULL, 685 CTLFLAG_PERMANENT, 686 CTLTYPE_STRING, "machine_arch", 687 SYSCTL_DESCR("Machine CPU class"), 688 NULL, 0, machine_arch, 0, 689 CTL_HW, HW_MACHINE_ARCH, CTL_EOL); 690 sysctl_createv(clog, 0, NULL, NULL, 691 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 692 CTLTYPE_INT, "alignbytes", 693 SYSCTL_DESCR("Alignment constraint for all possible " 694 "data types"), 695 NULL, ALIGNBYTES, NULL, 0, 696 CTL_HW, HW_ALIGNBYTES, CTL_EOL); 697 sysctl_createv(clog, 0, NULL, NULL, 698 CTLFLAG_PERMANENT|CTLFLAG_READWRITE|CTLFLAG_HEX, 699 CTLTYPE_STRING, "cnmagic", 700 SYSCTL_DESCR("Console magic key sequence"), 701 sysctl_hw_cnmagic, 0, NULL, CNS_LEN, 702 CTL_HW, HW_CNMAGIC, CTL_EOL); 703 q = (u_quad_t)physmem * PAGE_SIZE; 704 sysctl_createv(clog, 0, NULL, NULL, 705 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 706 CTLTYPE_QUAD, "physmem64", 707 SYSCTL_DESCR("Bytes of physical memory"), 708 NULL, q, NULL, 0, 709 CTL_HW, HW_PHYSMEM64, CTL_EOL); 710 sysctl_createv(clog, 0, NULL, NULL, 711 CTLFLAG_PERMANENT, 712 CTLTYPE_QUAD, "usermem64", 713 SYSCTL_DESCR("Bytes of non-kernel memory"), 714 sysctl_hw_usermem, 0, NULL, 0, 715 CTL_HW, HW_USERMEM64, CTL_EOL); 716 sysctl_createv(clog, 0, NULL, NULL, 717 CTLFLAG_PERMANENT, 718 CTLTYPE_INT, "ncpuonline", 719 SYSCTL_DESCR("Number of CPUs online"), 720 NULL, 0, &ncpuonline, 0, 721 CTL_HW, HW_NCPUONLINE, CTL_EOL); 722 } 723 724 #ifdef DEBUG 725 /* 726 * Debugging related system variables. 727 */ 728 struct ctldebug /* debug0, */ /* debug1, */ debug2, debug3, debug4; 729 struct ctldebug debug5, debug6, debug7, debug8, debug9; 730 struct ctldebug debug10, debug11, debug12, debug13, debug14; 731 struct ctldebug debug15, debug16, debug17, debug18, debug19; 732 static struct ctldebug *debugvars[CTL_DEBUG_MAXID] = { 733 &debug0, &debug1, &debug2, &debug3, &debug4, 734 &debug5, &debug6, &debug7, &debug8, &debug9, 735 &debug10, &debug11, &debug12, &debug13, &debug14, 736 &debug15, &debug16, &debug17, &debug18, &debug19, 737 }; 738 739 /* 740 * this setup routine is a replacement for debug_sysctl() 741 * 742 * note that it creates several nodes per defined debug variable 743 */ 744 SYSCTL_SETUP(sysctl_debug_setup, "sysctl debug subtree setup") 745 { 746 struct ctldebug *cdp; 747 char nodename[20]; 748 int i; 749 750 /* 751 * two ways here: 752 * 753 * the "old" way (debug.name -> value) which was emulated by 754 * the sysctl(8) binary 755 * 756 * the new way, which the sysctl(8) binary was actually using 757 758 node debug 759 node debug.0 760 string debug.0.name 761 int debug.0.value 762 int debug.name 763 764 */ 765 766 for (i = 0; i < CTL_DEBUG_MAXID; i++) { 767 cdp = debugvars[i]; 768 if (cdp->debugname == NULL || cdp->debugvar == NULL) 769 continue; 770 771 snprintf(nodename, sizeof(nodename), "debug%d", i); 772 sysctl_createv(clog, 0, NULL, NULL, 773 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 774 CTLTYPE_NODE, nodename, NULL, 775 NULL, 0, NULL, 0, 776 CTL_DEBUG, i, CTL_EOL); 777 sysctl_createv(clog, 0, NULL, NULL, 778 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 779 CTLTYPE_STRING, "name", NULL, 780 /*XXXUNCONST*/ 781 NULL, 0, __UNCONST(cdp->debugname), 0, 782 CTL_DEBUG, i, CTL_DEBUG_NAME, CTL_EOL); 783 sysctl_createv(clog, 0, NULL, NULL, 784 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 785 CTLTYPE_INT, "value", NULL, 786 NULL, 0, cdp->debugvar, 0, 787 CTL_DEBUG, i, CTL_DEBUG_VALUE, CTL_EOL); 788 sysctl_createv(clog, 0, NULL, NULL, 789 CTLFLAG_PERMANENT, 790 CTLTYPE_INT, cdp->debugname, NULL, 791 NULL, 0, cdp->debugvar, 0, 792 CTL_DEBUG, CTL_CREATE, CTL_EOL); 793 } 794 } 795 #endif /* DEBUG */ 796 797 /* 798 * ******************************************************************** 799 * section 2: private node-specific helper routines. 800 * ******************************************************************** 801 */ 802 803 #ifdef DIAGNOSTIC 804 static int 805 sysctl_kern_trigger_panic(SYSCTLFN_ARGS) 806 { 807 int newtrig, error; 808 struct sysctlnode node; 809 810 newtrig = 0; 811 node = *rnode; 812 node.sysctl_data = &newtrig; 813 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 814 if (error || newp == NULL) 815 return (error); 816 817 if (newtrig != 0) 818 panic("Panic triggered"); 819 820 return (error); 821 } 822 #endif 823 824 /* 825 * sysctl helper routine for kern.maxvnodes. Drain vnodes if 826 * new value is lower than desiredvnodes and then calls reinit 827 * routines that needs to adjust to the new value. 828 */ 829 static int 830 sysctl_kern_maxvnodes(SYSCTLFN_ARGS) 831 { 832 int error, new_vnodes, old_vnodes, new_max; 833 struct sysctlnode node; 834 835 new_vnodes = desiredvnodes; 836 node = *rnode; 837 node.sysctl_data = &new_vnodes; 838 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 839 if (error || newp == NULL) 840 return (error); 841 842 /* 843 * sysctl passes down unsigned values, require them 844 * to be positive 845 */ 846 if (new_vnodes <= 0) 847 return (EINVAL); 848 849 /* Limits: 75% of kmem and physical memory. */ 850 new_max = calc_cache_size(vmem_size(kmem_arena, VMEM_FREE|VMEM_ALLOC), 851 75, 75) / VNODE_COST; 852 if (new_vnodes > new_max) 853 new_vnodes = new_max; 854 855 old_vnodes = desiredvnodes; 856 desiredvnodes = new_vnodes; 857 if (new_vnodes < old_vnodes) { 858 error = vfs_drainvnodes(new_vnodes); 859 if (error) { 860 desiredvnodes = old_vnodes; 861 return (error); 862 } 863 } 864 vfs_reinit(); 865 nchreinit(); 866 867 return (0); 868 } 869 870 /* 871 * sysctl helper routine for rtc_offset - set time after changes 872 */ 873 static int 874 sysctl_kern_rtc_offset(SYSCTLFN_ARGS) 875 { 876 struct timespec ts, delta; 877 int error, new_rtc_offset; 878 struct sysctlnode node; 879 880 new_rtc_offset = rtc_offset; 881 node = *rnode; 882 node.sysctl_data = &new_rtc_offset; 883 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 884 if (error || newp == NULL) 885 return (error); 886 887 if (kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_TIME, 888 KAUTH_REQ_SYSTEM_TIME_RTCOFFSET, 889 KAUTH_ARG(new_rtc_offset), NULL, NULL)) 890 return (EPERM); 891 if (rtc_offset == new_rtc_offset) 892 return (0); 893 894 /* if we change the offset, adjust the time */ 895 nanotime(&ts); 896 delta.tv_sec = 60 * (new_rtc_offset - rtc_offset); 897 delta.tv_nsec = 0; 898 timespecadd(&ts, &delta, &ts); 899 rtc_offset = new_rtc_offset; 900 return (settime(l->l_proc, &ts)); 901 } 902 903 /* 904 * sysctl helper routine for kern.maxproc. Ensures that the new 905 * values are not too low or too high. 906 */ 907 static int 908 sysctl_kern_maxproc(SYSCTLFN_ARGS) 909 { 910 int error, nmaxproc; 911 struct sysctlnode node; 912 913 nmaxproc = maxproc; 914 node = *rnode; 915 node.sysctl_data = &nmaxproc; 916 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 917 if (error || newp == NULL) 918 return (error); 919 920 if (nmaxproc < 0 || nmaxproc >= PID_MAX) 921 return (EINVAL); 922 #ifdef __HAVE_CPU_MAXPROC 923 if (nmaxproc > cpu_maxproc()) 924 return (EINVAL); 925 #endif 926 maxproc = nmaxproc; 927 928 return (0); 929 } 930 931 /* 932 * sysctl helper function for kern.hostid. The hostid is a long, but 933 * we export it as an int, so we need to give it a little help. 934 */ 935 static int 936 sysctl_kern_hostid(SYSCTLFN_ARGS) 937 { 938 int error, inthostid; 939 struct sysctlnode node; 940 941 inthostid = hostid; /* XXX assumes sizeof int <= sizeof long */ 942 node = *rnode; 943 node.sysctl_data = &inthostid; 944 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 945 if (error || newp == NULL) 946 return (error); 947 948 hostid = (unsigned)inthostid; 949 950 return (0); 951 } 952 953 /* 954 * sysctl helper routine for kern.clockrate. Assembles a struct on 955 * the fly to be returned to the caller. 956 */ 957 static int 958 sysctl_kern_clockrate(SYSCTLFN_ARGS) 959 { 960 struct clockinfo clkinfo; 961 struct sysctlnode node; 962 963 clkinfo.tick = tick; 964 clkinfo.tickadj = tickadj; 965 clkinfo.hz = hz; 966 clkinfo.profhz = profhz; 967 clkinfo.stathz = stathz ? stathz : hz; 968 969 node = *rnode; 970 node.sysctl_data = &clkinfo; 971 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 972 } 973 974 /* 975 * sysctl helper routine for kern.msgbufsize and kern.msgbuf. For the 976 * former it merely checks the message buffer is set up. For the latter, 977 * it also copies out the data if necessary. 978 */ 979 static int 980 sysctl_msgbuf(SYSCTLFN_ARGS) 981 { 982 char *where = oldp; 983 size_t len, maxlen; 984 long beg, end; 985 extern kmutex_t log_lock; 986 int error; 987 988 if (!msgbufenabled || msgbufp->msg_magic != MSG_MAGIC) { 989 msgbufenabled = 0; 990 return (ENXIO); 991 } 992 993 switch (rnode->sysctl_num) { 994 case KERN_MSGBUFSIZE: { 995 struct sysctlnode node = *rnode; 996 int msg_bufs = (int)msgbufp->msg_bufs; 997 node.sysctl_data = &msg_bufs; 998 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 999 } 1000 case KERN_MSGBUF: 1001 break; 1002 default: 1003 return (EOPNOTSUPP); 1004 } 1005 1006 if (newp != NULL) 1007 return (EPERM); 1008 1009 if (oldp == NULL) { 1010 /* always return full buffer size */ 1011 *oldlenp = msgbufp->msg_bufs; 1012 return (0); 1013 } 1014 1015 sysctl_unlock(); 1016 1017 /* 1018 * First, copy from the write pointer to the end of 1019 * message buffer. 1020 */ 1021 error = 0; 1022 mutex_spin_enter(&log_lock); 1023 maxlen = MIN(msgbufp->msg_bufs, *oldlenp); 1024 beg = msgbufp->msg_bufx; 1025 end = msgbufp->msg_bufs; 1026 mutex_spin_exit(&log_lock); 1027 1028 while (maxlen > 0) { 1029 len = MIN(end - beg, maxlen); 1030 if (len == 0) 1031 break; 1032 /* XXX unlocked, but hardly matters. */ 1033 error = dcopyout(l, &msgbufp->msg_bufc[beg], where, len); 1034 if (error) 1035 break; 1036 where += len; 1037 maxlen -= len; 1038 1039 /* 1040 * ... then, copy from the beginning of message buffer to 1041 * the write pointer. 1042 */ 1043 beg = 0; 1044 end = msgbufp->msg_bufx; 1045 } 1046 1047 sysctl_relock(); 1048 return (error); 1049 } 1050 1051 /* 1052 * sysctl helper routine for kern.defcorename. In the case of a new 1053 * string being assigned, check that it's not a zero-length string. 1054 * (XXX the check in -current doesn't work, but do we really care?) 1055 */ 1056 static int 1057 sysctl_kern_defcorename(SYSCTLFN_ARGS) 1058 { 1059 int error; 1060 char *newcorename; 1061 struct sysctlnode node; 1062 1063 newcorename = PNBUF_GET(); 1064 node = *rnode; 1065 node.sysctl_data = &newcorename[0]; 1066 memcpy(node.sysctl_data, rnode->sysctl_data, MAXPATHLEN); 1067 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1068 if (error || newp == NULL) { 1069 goto done; 1070 } 1071 1072 /* 1073 * when sysctl_lookup() deals with a string, it's guaranteed 1074 * to come back nul terminated. So there. :) 1075 */ 1076 if (strlen(newcorename) == 0) { 1077 error = EINVAL; 1078 } else { 1079 memcpy(rnode->sysctl_data, node.sysctl_data, MAXPATHLEN); 1080 error = 0; 1081 } 1082 done: 1083 PNBUF_PUT(newcorename); 1084 return error; 1085 } 1086 1087 /* 1088 * sysctl helper routine for kern.cp_time node. Adds up cpu time 1089 * across all cpus. 1090 */ 1091 static int 1092 sysctl_kern_cptime(SYSCTLFN_ARGS) 1093 { 1094 struct sysctlnode node = *rnode; 1095 uint64_t *cp_time = NULL; 1096 int error, n = ncpu, i; 1097 struct cpu_info *ci; 1098 CPU_INFO_ITERATOR cii; 1099 1100 /* 1101 * if you specifically pass a buffer that is the size of the 1102 * sum, or if you are probing for the size, you get the "sum" 1103 * of cp_time (and the size thereof) across all processors. 1104 * 1105 * alternately, you can pass an additional mib number and get 1106 * cp_time for that particular processor. 1107 */ 1108 switch (namelen) { 1109 case 0: 1110 if (*oldlenp == sizeof(uint64_t) * CPUSTATES || oldp == NULL) { 1111 node.sysctl_size = sizeof(uint64_t) * CPUSTATES; 1112 n = -1; /* SUM */ 1113 } 1114 else { 1115 node.sysctl_size = n * sizeof(uint64_t) * CPUSTATES; 1116 n = -2; /* ALL */ 1117 } 1118 break; 1119 case 1: 1120 if (name[0] < 0 || name[0] >= n) 1121 return (ENOENT); /* ENOSUCHPROCESSOR */ 1122 node.sysctl_size = sizeof(uint64_t) * CPUSTATES; 1123 n = name[0]; 1124 /* 1125 * adjust these so that sysctl_lookup() will be happy 1126 */ 1127 name++; 1128 namelen--; 1129 break; 1130 default: 1131 return (EINVAL); 1132 } 1133 1134 cp_time = kmem_alloc(node.sysctl_size, KM_SLEEP); 1135 if (cp_time == NULL) 1136 return (ENOMEM); 1137 node.sysctl_data = cp_time; 1138 memset(cp_time, 0, node.sysctl_size); 1139 1140 for (CPU_INFO_FOREACH(cii, ci)) { 1141 if (n <= 0) { 1142 for (i = 0; i < CPUSTATES; i++) { 1143 cp_time[i] += ci->ci_schedstate.spc_cp_time[i]; 1144 } 1145 } 1146 /* 1147 * if a specific processor was requested and we just 1148 * did it, we're done here 1149 */ 1150 if (n == 0) 1151 break; 1152 /* 1153 * if doing "all", skip to next cp_time set for next processor 1154 */ 1155 if (n == -2) 1156 cp_time += CPUSTATES; 1157 /* 1158 * if we're doing a specific processor, we're one 1159 * processor closer 1160 */ 1161 if (n > 0) 1162 n--; 1163 } 1164 1165 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1166 kmem_free(node.sysctl_data, node.sysctl_size); 1167 return (error); 1168 } 1169 1170 #if NPTY > 0 1171 /* 1172 * sysctl helper routine for kern.maxptys. Ensures that any new value 1173 * is acceptable to the pty subsystem. 1174 */ 1175 static int 1176 sysctl_kern_maxptys(SYSCTLFN_ARGS) 1177 { 1178 int pty_maxptys(int, int); /* defined in kern/tty_pty.c */ 1179 int error, xmax; 1180 struct sysctlnode node; 1181 1182 /* get current value of maxptys */ 1183 xmax = pty_maxptys(0, 0); 1184 1185 node = *rnode; 1186 node.sysctl_data = &xmax; 1187 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1188 if (error || newp == NULL) 1189 return (error); 1190 1191 if (xmax != pty_maxptys(xmax, 1)) 1192 return (EINVAL); 1193 1194 return (0); 1195 } 1196 #endif /* NPTY > 0 */ 1197 1198 /* 1199 * sysctl helper routine to do kern.lwp.* work. 1200 */ 1201 static int 1202 sysctl_kern_lwp(SYSCTLFN_ARGS) 1203 { 1204 struct kinfo_lwp klwp; 1205 struct proc *p; 1206 struct lwp *l2, *l3; 1207 char *where, *dp; 1208 int pid, elem_size, elem_count; 1209 int buflen, needed, error; 1210 bool gotit; 1211 1212 if (namelen == 1 && name[0] == CTL_QUERY) 1213 return (sysctl_query(SYSCTLFN_CALL(rnode))); 1214 1215 dp = where = oldp; 1216 buflen = where != NULL ? *oldlenp : 0; 1217 error = needed = 0; 1218 1219 if (newp != NULL || namelen != 3) 1220 return (EINVAL); 1221 pid = name[0]; 1222 elem_size = name[1]; 1223 elem_count = name[2]; 1224 1225 sysctl_unlock(); 1226 if (pid == -1) { 1227 mutex_enter(proc_lock); 1228 PROCLIST_FOREACH(p, &allproc) { 1229 /* Grab a hold on the process. */ 1230 if (!rw_tryenter(&p->p_reflock, RW_READER)) { 1231 continue; 1232 } 1233 mutex_exit(proc_lock); 1234 1235 mutex_enter(p->p_lock); 1236 LIST_FOREACH(l2, &p->p_lwps, l_sibling) { 1237 if (buflen >= elem_size && elem_count > 0) { 1238 lwp_lock(l2); 1239 fill_lwp(l2, &klwp); 1240 lwp_unlock(l2); 1241 mutex_exit(p->p_lock); 1242 1243 /* 1244 * Copy out elem_size, but not 1245 * larger than the size of a 1246 * struct kinfo_proc2. 1247 */ 1248 error = dcopyout(l, &klwp, dp, 1249 min(sizeof(klwp), elem_size)); 1250 if (error) { 1251 rw_exit(&p->p_reflock); 1252 goto cleanup; 1253 } 1254 mutex_enter(p->p_lock); 1255 LIST_FOREACH(l3, &p->p_lwps, 1256 l_sibling) { 1257 if (l2 == l3) 1258 break; 1259 } 1260 if (l3 == NULL) { 1261 mutex_exit(p->p_lock); 1262 rw_exit(&p->p_reflock); 1263 error = EAGAIN; 1264 goto cleanup; 1265 } 1266 dp += elem_size; 1267 buflen -= elem_size; 1268 elem_count--; 1269 } 1270 needed += elem_size; 1271 } 1272 mutex_exit(p->p_lock); 1273 1274 /* Drop reference to process. */ 1275 mutex_enter(proc_lock); 1276 rw_exit(&p->p_reflock); 1277 } 1278 mutex_exit(proc_lock); 1279 } else { 1280 mutex_enter(proc_lock); 1281 p = proc_find(pid); 1282 if (p == NULL) { 1283 error = ESRCH; 1284 mutex_exit(proc_lock); 1285 goto cleanup; 1286 } 1287 /* Grab a hold on the process. */ 1288 gotit = rw_tryenter(&p->p_reflock, RW_READER); 1289 mutex_exit(proc_lock); 1290 if (!gotit) { 1291 error = ESRCH; 1292 goto cleanup; 1293 } 1294 1295 mutex_enter(p->p_lock); 1296 LIST_FOREACH(l2, &p->p_lwps, l_sibling) { 1297 if (buflen >= elem_size && elem_count > 0) { 1298 lwp_lock(l2); 1299 fill_lwp(l2, &klwp); 1300 lwp_unlock(l2); 1301 mutex_exit(p->p_lock); 1302 /* 1303 * Copy out elem_size, but not larger than 1304 * the size of a struct kinfo_proc2. 1305 */ 1306 error = dcopyout(l, &klwp, dp, 1307 min(sizeof(klwp), elem_size)); 1308 if (error) { 1309 rw_exit(&p->p_reflock); 1310 goto cleanup; 1311 } 1312 mutex_enter(p->p_lock); 1313 LIST_FOREACH(l3, &p->p_lwps, l_sibling) { 1314 if (l2 == l3) 1315 break; 1316 } 1317 if (l3 == NULL) { 1318 mutex_exit(p->p_lock); 1319 rw_exit(&p->p_reflock); 1320 error = EAGAIN; 1321 goto cleanup; 1322 } 1323 dp += elem_size; 1324 buflen -= elem_size; 1325 elem_count--; 1326 } 1327 needed += elem_size; 1328 } 1329 mutex_exit(p->p_lock); 1330 1331 /* Drop reference to process. */ 1332 rw_exit(&p->p_reflock); 1333 } 1334 1335 if (where != NULL) { 1336 *oldlenp = dp - where; 1337 if (needed > *oldlenp) { 1338 sysctl_relock(); 1339 return (ENOMEM); 1340 } 1341 } else { 1342 needed += KERN_LWPSLOP; 1343 *oldlenp = needed; 1344 } 1345 error = 0; 1346 cleanup: 1347 sysctl_relock(); 1348 return (error); 1349 } 1350 1351 /* 1352 * sysctl helper routine for kern.forkfsleep node. Ensures that the 1353 * given value is not too large or two small, and is at least one 1354 * timer tick if not zero. 1355 */ 1356 static int 1357 sysctl_kern_forkfsleep(SYSCTLFN_ARGS) 1358 { 1359 /* userland sees value in ms, internally is in ticks */ 1360 extern int forkfsleep; /* defined in kern/kern_fork.c */ 1361 int error, timo, lsleep; 1362 struct sysctlnode node; 1363 1364 lsleep = forkfsleep * 1000 / hz; 1365 node = *rnode; 1366 node.sysctl_data = &lsleep; 1367 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1368 if (error || newp == NULL) 1369 return (error); 1370 1371 /* refuse negative values, and overly 'long time' */ 1372 if (lsleep < 0 || lsleep > MAXSLP * 1000) 1373 return (EINVAL); 1374 1375 timo = mstohz(lsleep); 1376 1377 /* if the interval is >0 ms && <1 tick, use 1 tick */ 1378 if (lsleep != 0 && timo == 0) 1379 forkfsleep = 1; 1380 else 1381 forkfsleep = timo; 1382 1383 return (0); 1384 } 1385 1386 /* 1387 * sysctl helper routine for kern.root_partition 1388 */ 1389 static int 1390 sysctl_kern_root_partition(SYSCTLFN_ARGS) 1391 { 1392 int rootpart = DISKPART(rootdev); 1393 struct sysctlnode node = *rnode; 1394 1395 node.sysctl_data = &rootpart; 1396 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1397 } 1398 1399 /* 1400 * sysctl helper function for kern.drivers 1401 */ 1402 static int 1403 sysctl_kern_drivers(SYSCTLFN_ARGS) 1404 { 1405 int error; 1406 size_t buflen; 1407 struct kinfo_drivers kd; 1408 char *start, *where; 1409 const char *dname; 1410 int i; 1411 extern struct devsw_conv *devsw_conv; 1412 extern int max_devsw_convs; 1413 1414 start = where = oldp; 1415 buflen = *oldlenp; 1416 if (where == NULL) { 1417 *oldlenp = max_devsw_convs * sizeof kd; 1418 return 0; 1419 } 1420 1421 /* 1422 * An array of kinfo_drivers structures 1423 */ 1424 error = 0; 1425 sysctl_unlock(); 1426 mutex_enter(&device_lock); 1427 for (i = 0; i < max_devsw_convs; i++) { 1428 dname = devsw_conv[i].d_name; 1429 if (dname == NULL) 1430 continue; 1431 if (buflen < sizeof kd) { 1432 error = ENOMEM; 1433 break; 1434 } 1435 memset(&kd, 0, sizeof(kd)); 1436 kd.d_bmajor = devsw_conv[i].d_bmajor; 1437 kd.d_cmajor = devsw_conv[i].d_cmajor; 1438 strlcpy(kd.d_name, dname, sizeof kd.d_name); 1439 mutex_exit(&device_lock); 1440 error = dcopyout(l, &kd, where, sizeof kd); 1441 mutex_enter(&device_lock); 1442 if (error != 0) 1443 break; 1444 buflen -= sizeof kd; 1445 where += sizeof kd; 1446 } 1447 mutex_exit(&device_lock); 1448 sysctl_relock(); 1449 *oldlenp = where - start; 1450 return error; 1451 } 1452 1453 static int 1454 sysctl_security_setidcore(SYSCTLFN_ARGS) 1455 { 1456 int newsize, error; 1457 struct sysctlnode node; 1458 1459 node = *rnode; 1460 node.sysctl_data = &newsize; 1461 newsize = *(int *)rnode->sysctl_data; 1462 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1463 if (error || newp == NULL) 1464 return error; 1465 1466 if (kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_SETIDCORE, 1467 0, NULL, NULL, NULL)) 1468 return (EPERM); 1469 1470 *(int *)rnode->sysctl_data = newsize; 1471 1472 return 0; 1473 } 1474 1475 static int 1476 sysctl_security_setidcorename(SYSCTLFN_ARGS) 1477 { 1478 int error; 1479 char *newsetidcorename; 1480 struct sysctlnode node; 1481 1482 newsetidcorename = PNBUF_GET(); 1483 node = *rnode; 1484 node.sysctl_data = newsetidcorename; 1485 memcpy(node.sysctl_data, rnode->sysctl_data, MAXPATHLEN); 1486 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1487 if (error || newp == NULL) { 1488 goto out; 1489 } 1490 if (kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_SETIDCORE, 1491 0, NULL, NULL, NULL)) { 1492 error = EPERM; 1493 goto out; 1494 } 1495 if (strlen(newsetidcorename) == 0) { 1496 error = EINVAL; 1497 goto out; 1498 } 1499 memcpy(rnode->sysctl_data, node.sysctl_data, MAXPATHLEN); 1500 out: 1501 PNBUF_PUT(newsetidcorename); 1502 return error; 1503 } 1504 1505 /* 1506 * sysctl helper routine for kern.cp_id node. Maps cpus to their 1507 * cpuids. 1508 */ 1509 static int 1510 sysctl_kern_cpid(SYSCTLFN_ARGS) 1511 { 1512 struct sysctlnode node = *rnode; 1513 uint64_t *cp_id = NULL; 1514 int error, n = ncpu; 1515 struct cpu_info *ci; 1516 CPU_INFO_ITERATOR cii; 1517 1518 /* 1519 * Here you may either retrieve a single cpu id or the whole 1520 * set. The size you get back when probing depends on what 1521 * you ask for. 1522 */ 1523 switch (namelen) { 1524 case 0: 1525 node.sysctl_size = n * sizeof(uint64_t); 1526 n = -2; /* ALL */ 1527 break; 1528 case 1: 1529 if (name[0] < 0 || name[0] >= n) 1530 return (ENOENT); /* ENOSUCHPROCESSOR */ 1531 node.sysctl_size = sizeof(uint64_t); 1532 n = name[0]; 1533 /* 1534 * adjust these so that sysctl_lookup() will be happy 1535 */ 1536 name++; 1537 namelen--; 1538 break; 1539 default: 1540 return (EINVAL); 1541 } 1542 1543 cp_id = kmem_alloc(node.sysctl_size, KM_SLEEP); 1544 if (cp_id == NULL) 1545 return (ENOMEM); 1546 node.sysctl_data = cp_id; 1547 memset(cp_id, 0, node.sysctl_size); 1548 1549 for (CPU_INFO_FOREACH(cii, ci)) { 1550 if (n <= 0) 1551 cp_id[0] = cpu_index(ci); 1552 /* 1553 * if a specific processor was requested and we just 1554 * did it, we're done here 1555 */ 1556 if (n == 0) 1557 break; 1558 /* 1559 * if doing "all", skip to next cp_id slot for next processor 1560 */ 1561 if (n == -2) 1562 cp_id++; 1563 /* 1564 * if we're doing a specific processor, we're one 1565 * processor closer 1566 */ 1567 if (n > 0) 1568 n--; 1569 } 1570 1571 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1572 kmem_free(node.sysctl_data, node.sysctl_size); 1573 return (error); 1574 } 1575 1576 /* 1577 * sysctl helper routine for hw.usermem and hw.usermem64. Values are 1578 * calculate on the fly taking into account integer overflow and the 1579 * current wired count. 1580 */ 1581 static int 1582 sysctl_hw_usermem(SYSCTLFN_ARGS) 1583 { 1584 u_int ui; 1585 u_quad_t uq; 1586 struct sysctlnode node; 1587 1588 node = *rnode; 1589 switch (rnode->sysctl_num) { 1590 case HW_USERMEM: 1591 if ((ui = physmem - uvmexp.wired) > (UINT_MAX / PAGE_SIZE)) 1592 ui = UINT_MAX; 1593 else 1594 ui *= PAGE_SIZE; 1595 node.sysctl_data = &ui; 1596 break; 1597 case HW_USERMEM64: 1598 uq = (u_quad_t)(physmem - uvmexp.wired) * PAGE_SIZE; 1599 node.sysctl_data = &uq; 1600 break; 1601 default: 1602 return (EINVAL); 1603 } 1604 1605 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1606 } 1607 1608 /* 1609 * sysctl helper routine for kern.cnmagic node. Pulls the old value 1610 * out, encoded, and stuffs the new value in for decoding. 1611 */ 1612 static int 1613 sysctl_hw_cnmagic(SYSCTLFN_ARGS) 1614 { 1615 char magic[CNS_LEN]; 1616 int error; 1617 struct sysctlnode node; 1618 1619 if (oldp) 1620 cn_get_magic(magic, CNS_LEN); 1621 node = *rnode; 1622 node.sysctl_data = &magic[0]; 1623 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1624 if (error || newp == NULL) 1625 return (error); 1626 1627 return (cn_set_magic(magic)); 1628 } 1629 1630 /* 1631 * ******************************************************************** 1632 * section 3: public helper routines that are used for more than one 1633 * node 1634 * ******************************************************************** 1635 */ 1636 1637 /* 1638 * sysctl helper routine for the kern.root_device node and some ports' 1639 * machdep.root_device nodes. 1640 */ 1641 int 1642 sysctl_root_device(SYSCTLFN_ARGS) 1643 { 1644 struct sysctlnode node; 1645 1646 node = *rnode; 1647 node.sysctl_data = __UNCONST(device_xname(root_device)); 1648 node.sysctl_size = strlen(device_xname(root_device)) + 1; 1649 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1650 } 1651 1652 /* 1653 * sysctl helper routine for kern.consdev, dependent on the current 1654 * state of the console. Also used for machdep.console_device on some 1655 * ports. 1656 */ 1657 int 1658 sysctl_consdev(SYSCTLFN_ARGS) 1659 { 1660 dev_t consdev; 1661 uint32_t oconsdev; 1662 struct sysctlnode node; 1663 1664 if (cn_tab != NULL) 1665 consdev = cn_tab->cn_dev; 1666 else 1667 consdev = NODEV; 1668 node = *rnode; 1669 switch (*oldlenp) { 1670 case sizeof(consdev): 1671 node.sysctl_data = &consdev; 1672 node.sysctl_size = sizeof(consdev); 1673 break; 1674 case sizeof(oconsdev): 1675 oconsdev = (uint32_t)consdev; 1676 node.sysctl_data = &oconsdev; 1677 node.sysctl_size = sizeof(oconsdev); 1678 break; 1679 default: 1680 return EINVAL; 1681 } 1682 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1683 } 1684 1685 /* 1686 * ******************************************************************** 1687 * section 4: support for some helpers 1688 * ******************************************************************** 1689 */ 1690 1691 1692 /* 1693 * Fill in a kinfo_lwp structure for the specified lwp. 1694 */ 1695 static void 1696 fill_lwp(struct lwp *l, struct kinfo_lwp *kl) 1697 { 1698 struct proc *p = l->l_proc; 1699 struct timeval tv; 1700 1701 KASSERT(lwp_locked(l, NULL)); 1702 1703 memset(kl, 0, sizeof(*kl)); 1704 1705 kl->l_forw = 0; 1706 kl->l_back = 0; 1707 kl->l_laddr = PTRTOUINT64(l); 1708 kl->l_addr = PTRTOUINT64(l->l_addr); 1709 kl->l_stat = l->l_stat; 1710 kl->l_lid = l->l_lid; 1711 kl->l_flag = L_INMEM; 1712 kl->l_flag |= sysctl_map_flags(sysctl_lwpprflagmap, l->l_prflag); 1713 kl->l_flag |= sysctl_map_flags(sysctl_lwpflagmap, l->l_flag); 1714 1715 kl->l_swtime = l->l_swtime; 1716 kl->l_slptime = l->l_slptime; 1717 if (l->l_stat == LSONPROC) 1718 kl->l_schedflags = l->l_cpu->ci_schedstate.spc_flags; 1719 else 1720 kl->l_schedflags = 0; 1721 kl->l_priority = lwp_eprio(l); 1722 kl->l_usrpri = l->l_priority; 1723 if (l->l_wchan) 1724 strncpy(kl->l_wmesg, l->l_wmesg, sizeof(kl->l_wmesg)); 1725 kl->l_wchan = PTRTOUINT64(l->l_wchan); 1726 kl->l_cpuid = cpu_index(l->l_cpu); 1727 bintime2timeval(&l->l_rtime, &tv); 1728 kl->l_rtime_sec = tv.tv_sec; 1729 kl->l_rtime_usec = tv.tv_usec; 1730 kl->l_cpticks = l->l_cpticks; 1731 kl->l_pctcpu = l->l_pctcpu; 1732 kl->l_pid = p->p_pid; 1733 if (l->l_name == NULL) 1734 kl->l_name[0] = '\0'; 1735 else 1736 strlcpy(kl->l_name, l->l_name, sizeof(kl->l_name)); 1737 } 1738
Indexes created Wed Sep 24 05:09:52 GMT 2025