init_sysctl.c revision 1.183.2.3
1 /* $NetBSD: init_sysctl.c,v 1.183.2.3 2014/05/22 11:41:03 yamt 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 1.183.2.3 2014/05/22 11:41:03 yamt 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 error = vfs_drainvnodes(new_vnodes); 858 if (error) { 859 desiredvnodes = old_vnodes; 860 return (error); 861 } 862 vfs_reinit(); 863 nchreinit(); 864 865 return (0); 866 } 867 868 /* 869 * sysctl helper routine for rtc_offset - set time after changes 870 */ 871 static int 872 sysctl_kern_rtc_offset(SYSCTLFN_ARGS) 873 { 874 struct timespec ts, delta; 875 int error, new_rtc_offset; 876 struct sysctlnode node; 877 878 new_rtc_offset = rtc_offset; 879 node = *rnode; 880 node.sysctl_data = &new_rtc_offset; 881 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 882 if (error || newp == NULL) 883 return (error); 884 885 if (kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_TIME, 886 KAUTH_REQ_SYSTEM_TIME_RTCOFFSET, 887 KAUTH_ARG(new_rtc_offset), NULL, NULL)) 888 return (EPERM); 889 if (rtc_offset == new_rtc_offset) 890 return (0); 891 892 /* if we change the offset, adjust the time */ 893 nanotime(&ts); 894 delta.tv_sec = 60 * (new_rtc_offset - rtc_offset); 895 delta.tv_nsec = 0; 896 timespecadd(&ts, &delta, &ts); 897 rtc_offset = new_rtc_offset; 898 return (settime(l->l_proc, &ts)); 899 } 900 901 /* 902 * sysctl helper routine for kern.maxproc. Ensures that the new 903 * values are not too low or too high. 904 */ 905 static int 906 sysctl_kern_maxproc(SYSCTLFN_ARGS) 907 { 908 int error, nmaxproc; 909 struct sysctlnode node; 910 911 nmaxproc = maxproc; 912 node = *rnode; 913 node.sysctl_data = &nmaxproc; 914 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 915 if (error || newp == NULL) 916 return (error); 917 918 if (nmaxproc < 0 || nmaxproc >= PID_MAX) 919 return (EINVAL); 920 #ifdef __HAVE_CPU_MAXPROC 921 if (nmaxproc > cpu_maxproc()) 922 return (EINVAL); 923 #endif 924 maxproc = nmaxproc; 925 926 return (0); 927 } 928 929 /* 930 * sysctl helper function for kern.hostid. The hostid is a long, but 931 * we export it as an int, so we need to give it a little help. 932 */ 933 static int 934 sysctl_kern_hostid(SYSCTLFN_ARGS) 935 { 936 int error, inthostid; 937 struct sysctlnode node; 938 939 inthostid = hostid; /* XXX assumes sizeof int <= sizeof long */ 940 node = *rnode; 941 node.sysctl_data = &inthostid; 942 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 943 if (error || newp == NULL) 944 return (error); 945 946 hostid = (unsigned)inthostid; 947 948 return (0); 949 } 950 951 /* 952 * sysctl helper routine for kern.clockrate. Assembles a struct on 953 * the fly to be returned to the caller. 954 */ 955 static int 956 sysctl_kern_clockrate(SYSCTLFN_ARGS) 957 { 958 struct clockinfo clkinfo; 959 struct sysctlnode node; 960 961 clkinfo.tick = tick; 962 clkinfo.tickadj = tickadj; 963 clkinfo.hz = hz; 964 clkinfo.profhz = profhz; 965 clkinfo.stathz = stathz ? stathz : hz; 966 967 node = *rnode; 968 node.sysctl_data = &clkinfo; 969 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 970 } 971 972 /* 973 * sysctl helper routine for kern.msgbufsize and kern.msgbuf. For the 974 * former it merely checks the message buffer is set up. For the latter, 975 * it also copies out the data if necessary. 976 */ 977 static int 978 sysctl_msgbuf(SYSCTLFN_ARGS) 979 { 980 char *where = oldp; 981 size_t len, maxlen; 982 long beg, end; 983 extern kmutex_t log_lock; 984 int error; 985 986 if (!msgbufenabled || msgbufp->msg_magic != MSG_MAGIC) { 987 msgbufenabled = 0; 988 return (ENXIO); 989 } 990 991 switch (rnode->sysctl_num) { 992 case KERN_MSGBUFSIZE: { 993 struct sysctlnode node = *rnode; 994 int msg_bufs = (int)msgbufp->msg_bufs; 995 node.sysctl_data = &msg_bufs; 996 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 997 } 998 case KERN_MSGBUF: 999 break; 1000 default: 1001 return (EOPNOTSUPP); 1002 } 1003 1004 if (newp != NULL) 1005 return (EPERM); 1006 1007 if (oldp == NULL) { 1008 /* always return full buffer size */ 1009 *oldlenp = msgbufp->msg_bufs; 1010 return (0); 1011 } 1012 1013 sysctl_unlock(); 1014 1015 /* 1016 * First, copy from the write pointer to the end of 1017 * message buffer. 1018 */ 1019 error = 0; 1020 mutex_spin_enter(&log_lock); 1021 maxlen = MIN(msgbufp->msg_bufs, *oldlenp); 1022 beg = msgbufp->msg_bufx; 1023 end = msgbufp->msg_bufs; 1024 mutex_spin_exit(&log_lock); 1025 1026 while (maxlen > 0) { 1027 len = MIN(end - beg, maxlen); 1028 if (len == 0) 1029 break; 1030 /* XXX unlocked, but hardly matters. */ 1031 error = dcopyout(l, &msgbufp->msg_bufc[beg], where, len); 1032 if (error) 1033 break; 1034 where += len; 1035 maxlen -= len; 1036 1037 /* 1038 * ... then, copy from the beginning of message buffer to 1039 * the write pointer. 1040 */ 1041 beg = 0; 1042 end = msgbufp->msg_bufx; 1043 } 1044 1045 sysctl_relock(); 1046 return (error); 1047 } 1048 1049 /* 1050 * sysctl helper routine for kern.defcorename. In the case of a new 1051 * string being assigned, check that it's not a zero-length string. 1052 * (XXX the check in -current doesn't work, but do we really care?) 1053 */ 1054 static int 1055 sysctl_kern_defcorename(SYSCTLFN_ARGS) 1056 { 1057 int error; 1058 char *newcorename; 1059 struct sysctlnode node; 1060 1061 newcorename = PNBUF_GET(); 1062 node = *rnode; 1063 node.sysctl_data = &newcorename[0]; 1064 memcpy(node.sysctl_data, rnode->sysctl_data, MAXPATHLEN); 1065 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1066 if (error || newp == NULL) { 1067 goto done; 1068 } 1069 1070 /* 1071 * when sysctl_lookup() deals with a string, it's guaranteed 1072 * to come back nul terminated. So there. :) 1073 */ 1074 if (strlen(newcorename) == 0) { 1075 error = EINVAL; 1076 } else { 1077 memcpy(rnode->sysctl_data, node.sysctl_data, MAXPATHLEN); 1078 error = 0; 1079 } 1080 done: 1081 PNBUF_PUT(newcorename); 1082 return error; 1083 } 1084 1085 /* 1086 * sysctl helper routine for kern.cp_time node. Adds up cpu time 1087 * across all cpus. 1088 */ 1089 static int 1090 sysctl_kern_cptime(SYSCTLFN_ARGS) 1091 { 1092 struct sysctlnode node = *rnode; 1093 uint64_t *cp_time = NULL; 1094 int error, n = ncpu, i; 1095 struct cpu_info *ci; 1096 CPU_INFO_ITERATOR cii; 1097 1098 /* 1099 * if you specifically pass a buffer that is the size of the 1100 * sum, or if you are probing for the size, you get the "sum" 1101 * of cp_time (and the size thereof) across all processors. 1102 * 1103 * alternately, you can pass an additional mib number and get 1104 * cp_time for that particular processor. 1105 */ 1106 switch (namelen) { 1107 case 0: 1108 if (*oldlenp == sizeof(uint64_t) * CPUSTATES || oldp == NULL) { 1109 node.sysctl_size = sizeof(uint64_t) * CPUSTATES; 1110 n = -1; /* SUM */ 1111 } 1112 else { 1113 node.sysctl_size = n * sizeof(uint64_t) * CPUSTATES; 1114 n = -2; /* ALL */ 1115 } 1116 break; 1117 case 1: 1118 if (name[0] < 0 || name[0] >= n) 1119 return (ENOENT); /* ENOSUCHPROCESSOR */ 1120 node.sysctl_size = sizeof(uint64_t) * CPUSTATES; 1121 n = name[0]; 1122 /* 1123 * adjust these so that sysctl_lookup() will be happy 1124 */ 1125 name++; 1126 namelen--; 1127 break; 1128 default: 1129 return (EINVAL); 1130 } 1131 1132 cp_time = kmem_alloc(node.sysctl_size, KM_SLEEP); 1133 if (cp_time == NULL) 1134 return (ENOMEM); 1135 node.sysctl_data = cp_time; 1136 memset(cp_time, 0, node.sysctl_size); 1137 1138 for (CPU_INFO_FOREACH(cii, ci)) { 1139 if (n <= 0) { 1140 for (i = 0; i < CPUSTATES; i++) { 1141 cp_time[i] += ci->ci_schedstate.spc_cp_time[i]; 1142 } 1143 } 1144 /* 1145 * if a specific processor was requested and we just 1146 * did it, we're done here 1147 */ 1148 if (n == 0) 1149 break; 1150 /* 1151 * if doing "all", skip to next cp_time set for next processor 1152 */ 1153 if (n == -2) 1154 cp_time += CPUSTATES; 1155 /* 1156 * if we're doing a specific processor, we're one 1157 * processor closer 1158 */ 1159 if (n > 0) 1160 n--; 1161 } 1162 1163 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1164 kmem_free(node.sysctl_data, node.sysctl_size); 1165 return (error); 1166 } 1167 1168 #if NPTY > 0 1169 /* 1170 * sysctl helper routine for kern.maxptys. Ensures that any new value 1171 * is acceptable to the pty subsystem. 1172 */ 1173 static int 1174 sysctl_kern_maxptys(SYSCTLFN_ARGS) 1175 { 1176 int pty_maxptys(int, int); /* defined in kern/tty_pty.c */ 1177 int error, xmax; 1178 struct sysctlnode node; 1179 1180 /* get current value of maxptys */ 1181 xmax = pty_maxptys(0, 0); 1182 1183 node = *rnode; 1184 node.sysctl_data = &xmax; 1185 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1186 if (error || newp == NULL) 1187 return (error); 1188 1189 if (xmax != pty_maxptys(xmax, 1)) 1190 return (EINVAL); 1191 1192 return (0); 1193 } 1194 #endif /* NPTY > 0 */ 1195 1196 /* 1197 * sysctl helper routine to do kern.lwp.* work. 1198 */ 1199 static int 1200 sysctl_kern_lwp(SYSCTLFN_ARGS) 1201 { 1202 struct kinfo_lwp klwp; 1203 struct proc *p; 1204 struct lwp *l2, *l3; 1205 char *where, *dp; 1206 int pid, elem_size, elem_count; 1207 int buflen, needed, error; 1208 bool gotit; 1209 1210 if (namelen == 1 && name[0] == CTL_QUERY) 1211 return (sysctl_query(SYSCTLFN_CALL(rnode))); 1212 1213 dp = where = oldp; 1214 buflen = where != NULL ? *oldlenp : 0; 1215 error = needed = 0; 1216 1217 if (newp != NULL || namelen != 3) 1218 return (EINVAL); 1219 pid = name[0]; 1220 elem_size = name[1]; 1221 elem_count = name[2]; 1222 1223 sysctl_unlock(); 1224 if (pid == -1) { 1225 mutex_enter(proc_lock); 1226 PROCLIST_FOREACH(p, &allproc) { 1227 /* Grab a hold on the process. */ 1228 if (!rw_tryenter(&p->p_reflock, RW_READER)) { 1229 continue; 1230 } 1231 mutex_exit(proc_lock); 1232 1233 mutex_enter(p->p_lock); 1234 LIST_FOREACH(l2, &p->p_lwps, l_sibling) { 1235 if (buflen >= elem_size && elem_count > 0) { 1236 lwp_lock(l2); 1237 fill_lwp(l2, &klwp); 1238 lwp_unlock(l2); 1239 mutex_exit(p->p_lock); 1240 1241 /* 1242 * Copy out elem_size, but not 1243 * larger than the size of a 1244 * struct kinfo_proc2. 1245 */ 1246 error = dcopyout(l, &klwp, dp, 1247 min(sizeof(klwp), elem_size)); 1248 if (error) { 1249 rw_exit(&p->p_reflock); 1250 goto cleanup; 1251 } 1252 mutex_enter(p->p_lock); 1253 LIST_FOREACH(l3, &p->p_lwps, 1254 l_sibling) { 1255 if (l2 == l3) 1256 break; 1257 } 1258 if (l3 == NULL) { 1259 mutex_exit(p->p_lock); 1260 rw_exit(&p->p_reflock); 1261 error = EAGAIN; 1262 goto cleanup; 1263 } 1264 dp += elem_size; 1265 buflen -= elem_size; 1266 elem_count--; 1267 } 1268 needed += elem_size; 1269 } 1270 mutex_exit(p->p_lock); 1271 1272 /* Drop reference to process. */ 1273 mutex_enter(proc_lock); 1274 rw_exit(&p->p_reflock); 1275 } 1276 mutex_exit(proc_lock); 1277 } else { 1278 mutex_enter(proc_lock); 1279 p = proc_find(pid); 1280 if (p == NULL) { 1281 error = ESRCH; 1282 mutex_exit(proc_lock); 1283 goto cleanup; 1284 } 1285 /* Grab a hold on the process. */ 1286 gotit = rw_tryenter(&p->p_reflock, RW_READER); 1287 mutex_exit(proc_lock); 1288 if (!gotit) { 1289 error = ESRCH; 1290 goto cleanup; 1291 } 1292 1293 mutex_enter(p->p_lock); 1294 LIST_FOREACH(l2, &p->p_lwps, l_sibling) { 1295 if (buflen >= elem_size && elem_count > 0) { 1296 lwp_lock(l2); 1297 fill_lwp(l2, &klwp); 1298 lwp_unlock(l2); 1299 mutex_exit(p->p_lock); 1300 /* 1301 * Copy out elem_size, but not larger than 1302 * the size of a struct kinfo_proc2. 1303 */ 1304 error = dcopyout(l, &klwp, dp, 1305 min(sizeof(klwp), elem_size)); 1306 if (error) { 1307 rw_exit(&p->p_reflock); 1308 goto cleanup; 1309 } 1310 mutex_enter(p->p_lock); 1311 LIST_FOREACH(l3, &p->p_lwps, l_sibling) { 1312 if (l2 == l3) 1313 break; 1314 } 1315 if (l3 == NULL) { 1316 mutex_exit(p->p_lock); 1317 rw_exit(&p->p_reflock); 1318 error = EAGAIN; 1319 goto cleanup; 1320 } 1321 dp += elem_size; 1322 buflen -= elem_size; 1323 elem_count--; 1324 } 1325 needed += elem_size; 1326 } 1327 mutex_exit(p->p_lock); 1328 1329 /* Drop reference to process. */ 1330 rw_exit(&p->p_reflock); 1331 } 1332 1333 if (where != NULL) { 1334 *oldlenp = dp - where; 1335 if (needed > *oldlenp) { 1336 sysctl_relock(); 1337 return (ENOMEM); 1338 } 1339 } else { 1340 needed += KERN_LWPSLOP; 1341 *oldlenp = needed; 1342 } 1343 error = 0; 1344 cleanup: 1345 sysctl_relock(); 1346 return (error); 1347 } 1348 1349 /* 1350 * sysctl helper routine for kern.forkfsleep node. Ensures that the 1351 * given value is not too large or two small, and is at least one 1352 * timer tick if not zero. 1353 */ 1354 static int 1355 sysctl_kern_forkfsleep(SYSCTLFN_ARGS) 1356 { 1357 /* userland sees value in ms, internally is in ticks */ 1358 extern int forkfsleep; /* defined in kern/kern_fork.c */ 1359 int error, timo, lsleep; 1360 struct sysctlnode node; 1361 1362 lsleep = forkfsleep * 1000 / hz; 1363 node = *rnode; 1364 node.sysctl_data = &lsleep; 1365 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1366 if (error || newp == NULL) 1367 return (error); 1368 1369 /* refuse negative values, and overly 'long time' */ 1370 if (lsleep < 0 || lsleep > MAXSLP * 1000) 1371 return (EINVAL); 1372 1373 timo = mstohz(lsleep); 1374 1375 /* if the interval is >0 ms && <1 tick, use 1 tick */ 1376 if (lsleep != 0 && timo == 0) 1377 forkfsleep = 1; 1378 else 1379 forkfsleep = timo; 1380 1381 return (0); 1382 } 1383 1384 /* 1385 * sysctl helper routine for kern.root_partition 1386 */ 1387 static int 1388 sysctl_kern_root_partition(SYSCTLFN_ARGS) 1389 { 1390 int rootpart = DISKPART(rootdev); 1391 struct sysctlnode node = *rnode; 1392 1393 node.sysctl_data = &rootpart; 1394 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1395 } 1396 1397 /* 1398 * sysctl helper function for kern.drivers 1399 */ 1400 static int 1401 sysctl_kern_drivers(SYSCTLFN_ARGS) 1402 { 1403 int error; 1404 size_t buflen; 1405 struct kinfo_drivers kd; 1406 char *start, *where; 1407 const char *dname; 1408 int i; 1409 extern struct devsw_conv *devsw_conv; 1410 extern int max_devsw_convs; 1411 1412 start = where = oldp; 1413 buflen = *oldlenp; 1414 if (where == NULL) { 1415 *oldlenp = max_devsw_convs * sizeof kd; 1416 return 0; 1417 } 1418 1419 /* 1420 * An array of kinfo_drivers structures 1421 */ 1422 error = 0; 1423 sysctl_unlock(); 1424 mutex_enter(&device_lock); 1425 for (i = 0; i < max_devsw_convs; i++) { 1426 dname = devsw_conv[i].d_name; 1427 if (dname == NULL) 1428 continue; 1429 if (buflen < sizeof kd) { 1430 error = ENOMEM; 1431 break; 1432 } 1433 memset(&kd, 0, sizeof(kd)); 1434 kd.d_bmajor = devsw_conv[i].d_bmajor; 1435 kd.d_cmajor = devsw_conv[i].d_cmajor; 1436 strlcpy(kd.d_name, dname, sizeof kd.d_name); 1437 mutex_exit(&device_lock); 1438 error = dcopyout(l, &kd, where, sizeof kd); 1439 mutex_enter(&device_lock); 1440 if (error != 0) 1441 break; 1442 buflen -= sizeof kd; 1443 where += sizeof kd; 1444 } 1445 mutex_exit(&device_lock); 1446 sysctl_relock(); 1447 *oldlenp = where - start; 1448 return error; 1449 } 1450 1451 static int 1452 sysctl_security_setidcore(SYSCTLFN_ARGS) 1453 { 1454 int newsize, error; 1455 struct sysctlnode node; 1456 1457 node = *rnode; 1458 node.sysctl_data = &newsize; 1459 newsize = *(int *)rnode->sysctl_data; 1460 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1461 if (error || newp == NULL) 1462 return error; 1463 1464 if (kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_SETIDCORE, 1465 0, NULL, NULL, NULL)) 1466 return (EPERM); 1467 1468 *(int *)rnode->sysctl_data = newsize; 1469 1470 return 0; 1471 } 1472 1473 static int 1474 sysctl_security_setidcorename(SYSCTLFN_ARGS) 1475 { 1476 int error; 1477 char *newsetidcorename; 1478 struct sysctlnode node; 1479 1480 newsetidcorename = PNBUF_GET(); 1481 node = *rnode; 1482 node.sysctl_data = newsetidcorename; 1483 memcpy(node.sysctl_data, rnode->sysctl_data, MAXPATHLEN); 1484 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1485 if (error || newp == NULL) { 1486 goto out; 1487 } 1488 if (kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_SETIDCORE, 1489 0, NULL, NULL, NULL)) { 1490 error = EPERM; 1491 goto out; 1492 } 1493 if (strlen(newsetidcorename) == 0) { 1494 error = EINVAL; 1495 goto out; 1496 } 1497 memcpy(rnode->sysctl_data, node.sysctl_data, MAXPATHLEN); 1498 out: 1499 PNBUF_PUT(newsetidcorename); 1500 return error; 1501 } 1502 1503 /* 1504 * sysctl helper routine for kern.cp_id node. Maps cpus to their 1505 * cpuids. 1506 */ 1507 static int 1508 sysctl_kern_cpid(SYSCTLFN_ARGS) 1509 { 1510 struct sysctlnode node = *rnode; 1511 uint64_t *cp_id = NULL; 1512 int error, n = ncpu; 1513 struct cpu_info *ci; 1514 CPU_INFO_ITERATOR cii; 1515 1516 /* 1517 * Here you may either retrieve a single cpu id or the whole 1518 * set. The size you get back when probing depends on what 1519 * you ask for. 1520 */ 1521 switch (namelen) { 1522 case 0: 1523 node.sysctl_size = n * sizeof(uint64_t); 1524 n = -2; /* ALL */ 1525 break; 1526 case 1: 1527 if (name[0] < 0 || name[0] >= n) 1528 return (ENOENT); /* ENOSUCHPROCESSOR */ 1529 node.sysctl_size = sizeof(uint64_t); 1530 n = name[0]; 1531 /* 1532 * adjust these so that sysctl_lookup() will be happy 1533 */ 1534 name++; 1535 namelen--; 1536 break; 1537 default: 1538 return (EINVAL); 1539 } 1540 1541 cp_id = kmem_alloc(node.sysctl_size, KM_SLEEP); 1542 if (cp_id == NULL) 1543 return (ENOMEM); 1544 node.sysctl_data = cp_id; 1545 memset(cp_id, 0, node.sysctl_size); 1546 1547 for (CPU_INFO_FOREACH(cii, ci)) { 1548 if (n <= 0) 1549 cp_id[0] = cpu_index(ci); 1550 /* 1551 * if a specific processor was requested and we just 1552 * did it, we're done here 1553 */ 1554 if (n == 0) 1555 break; 1556 /* 1557 * if doing "all", skip to next cp_id slot for next processor 1558 */ 1559 if (n == -2) 1560 cp_id++; 1561 /* 1562 * if we're doing a specific processor, we're one 1563 * processor closer 1564 */ 1565 if (n > 0) 1566 n--; 1567 } 1568 1569 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1570 kmem_free(node.sysctl_data, node.sysctl_size); 1571 return (error); 1572 } 1573 1574 /* 1575 * sysctl helper routine for hw.usermem and hw.usermem64. Values are 1576 * calculate on the fly taking into account integer overflow and the 1577 * current wired count. 1578 */ 1579 static int 1580 sysctl_hw_usermem(SYSCTLFN_ARGS) 1581 { 1582 u_int ui; 1583 u_quad_t uq; 1584 struct sysctlnode node; 1585 1586 node = *rnode; 1587 switch (rnode->sysctl_num) { 1588 case HW_USERMEM: 1589 if ((ui = physmem - uvmexp.wired) > (UINT_MAX / PAGE_SIZE)) 1590 ui = UINT_MAX; 1591 else 1592 ui *= PAGE_SIZE; 1593 node.sysctl_data = &ui; 1594 break; 1595 case HW_USERMEM64: 1596 uq = (u_quad_t)(physmem - uvmexp.wired) * PAGE_SIZE; 1597 node.sysctl_data = &uq; 1598 break; 1599 default: 1600 return (EINVAL); 1601 } 1602 1603 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1604 } 1605 1606 /* 1607 * sysctl helper routine for kern.cnmagic node. Pulls the old value 1608 * out, encoded, and stuffs the new value in for decoding. 1609 */ 1610 static int 1611 sysctl_hw_cnmagic(SYSCTLFN_ARGS) 1612 { 1613 char magic[CNS_LEN]; 1614 int error; 1615 struct sysctlnode node; 1616 1617 if (oldp) 1618 cn_get_magic(magic, CNS_LEN); 1619 node = *rnode; 1620 node.sysctl_data = &magic[0]; 1621 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1622 if (error || newp == NULL) 1623 return (error); 1624 1625 return (cn_set_magic(magic)); 1626 } 1627 1628 /* 1629 * ******************************************************************** 1630 * section 3: public helper routines that are used for more than one 1631 * node 1632 * ******************************************************************** 1633 */ 1634 1635 /* 1636 * sysctl helper routine for the kern.root_device node and some ports' 1637 * machdep.root_device nodes. 1638 */ 1639 int 1640 sysctl_root_device(SYSCTLFN_ARGS) 1641 { 1642 struct sysctlnode node; 1643 1644 node = *rnode; 1645 node.sysctl_data = __UNCONST(device_xname(root_device)); 1646 node.sysctl_size = strlen(device_xname(root_device)) + 1; 1647 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1648 } 1649 1650 /* 1651 * sysctl helper routine for kern.consdev, dependent on the current 1652 * state of the console. Also used for machdep.console_device on some 1653 * ports. 1654 */ 1655 int 1656 sysctl_consdev(SYSCTLFN_ARGS) 1657 { 1658 dev_t consdev; 1659 uint32_t oconsdev; 1660 struct sysctlnode node; 1661 1662 if (cn_tab != NULL) 1663 consdev = cn_tab->cn_dev; 1664 else 1665 consdev = NODEV; 1666 node = *rnode; 1667 switch (*oldlenp) { 1668 case sizeof(consdev): 1669 node.sysctl_data = &consdev; 1670 node.sysctl_size = sizeof(consdev); 1671 break; 1672 case sizeof(oconsdev): 1673 oconsdev = (uint32_t)consdev; 1674 node.sysctl_data = &oconsdev; 1675 node.sysctl_size = sizeof(oconsdev); 1676 break; 1677 default: 1678 return EINVAL; 1679 } 1680 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1681 } 1682 1683 /* 1684 * ******************************************************************** 1685 * section 4: support for some helpers 1686 * ******************************************************************** 1687 */ 1688 1689 1690 /* 1691 * Fill in a kinfo_lwp structure for the specified lwp. 1692 */ 1693 static void 1694 fill_lwp(struct lwp *l, struct kinfo_lwp *kl) 1695 { 1696 struct proc *p = l->l_proc; 1697 struct timeval tv; 1698 1699 KASSERT(lwp_locked(l, NULL)); 1700 1701 memset(kl, 0, sizeof(*kl)); 1702 1703 kl->l_forw = 0; 1704 kl->l_back = 0; 1705 kl->l_laddr = PTRTOUINT64(l); 1706 kl->l_addr = PTRTOUINT64(l->l_addr); 1707 kl->l_stat = l->l_stat; 1708 kl->l_lid = l->l_lid; 1709 kl->l_flag = L_INMEM; 1710 kl->l_flag |= sysctl_map_flags(sysctl_lwpprflagmap, l->l_prflag); 1711 kl->l_flag |= sysctl_map_flags(sysctl_lwpflagmap, l->l_flag); 1712 1713 kl->l_swtime = l->l_swtime; 1714 kl->l_slptime = l->l_slptime; 1715 if (l->l_stat == LSONPROC) 1716 kl->l_schedflags = l->l_cpu->ci_schedstate.spc_flags; 1717 else 1718 kl->l_schedflags = 0; 1719 kl->l_priority = lwp_eprio(l); 1720 kl->l_usrpri = l->l_priority; 1721 if (l->l_wchan) 1722 strncpy(kl->l_wmesg, l->l_wmesg, sizeof(kl->l_wmesg)); 1723 kl->l_wchan = PTRTOUINT64(l->l_wchan); 1724 kl->l_cpuid = cpu_index(l->l_cpu); 1725 bintime2timeval(&l->l_rtime, &tv); 1726 kl->l_rtime_sec = tv.tv_sec; 1727 kl->l_rtime_usec = tv.tv_usec; 1728 kl->l_cpticks = l->l_cpticks; 1729 kl->l_pctcpu = l->l_pctcpu; 1730 kl->l_pid = p->p_pid; 1731 if (l->l_name == NULL) 1732 kl->l_name[0] = '\0'; 1733 else 1734 strlcpy(kl->l_name, l->l_name, sizeof(kl->l_name)); 1735 } 1736
Indexes created Wed Oct 01 15:09:59 GMT 2025