init_sysctl.c revision 1.190.2.4
1 /* $NetBSD: init_sysctl.c,v 1.190.2.4 2014/08/20 00:04:28 tls 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 1.190.2.4 2014/08/20 00:04:28 tls 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 sysctl_createv(clog, 0, NULL, NULL, 614 CTLFLAG_PERMANENT, 615 CTLTYPE_STRING, "configname", 616 SYSCTL_DESCR("Name of config file"), 617 NULL, 0, __UNCONST(kernel_ident), 0, 618 CTL_KERN, CTL_CREATE, CTL_EOL); 619 sysctl_createv(clog, 0, NULL, NULL, 620 CTLFLAG_PERMANENT, 621 CTLTYPE_STRING, "buildinfo", 622 SYSCTL_DESCR("Information from build environment"), 623 NULL, 0, __UNCONST(buildinfo), 0, 624 CTL_KERN, CTL_CREATE, CTL_EOL); 625 626 /* kern.posix. */ 627 sysctl_createv(clog, 0, NULL, &rnode, 628 CTLFLAG_PERMANENT, 629 CTLTYPE_NODE, "posix", 630 SYSCTL_DESCR("POSIX options"), 631 NULL, 0, NULL, 0, 632 CTL_KERN, CTL_CREATE, CTL_EOL); 633 sysctl_createv(clog, 0, &rnode, NULL, 634 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, 635 CTLTYPE_INT, "semmax", 636 SYSCTL_DESCR("Maximal number of semaphores"), 637 NULL, 0, &ksem_max, 0, 638 CTL_CREATE, CTL_EOL); 639 } 640 641 SYSCTL_SETUP(sysctl_hw_setup, "sysctl hw subtree setup") 642 { 643 u_int u; 644 u_quad_t q; 645 const char *model = cpu_getmodel(); 646 647 sysctl_createv(clog, 0, NULL, NULL, 648 CTLFLAG_PERMANENT, 649 CTLTYPE_STRING, "machine", 650 SYSCTL_DESCR("Machine class"), 651 NULL, 0, machine, 0, 652 CTL_HW, HW_MACHINE, CTL_EOL); 653 sysctl_createv(clog, 0, NULL, NULL, 654 CTLFLAG_PERMANENT, 655 CTLTYPE_STRING, "model", 656 SYSCTL_DESCR("Machine model"), 657 NULL, 0, __UNCONST(model), 0, 658 CTL_HW, HW_MODEL, CTL_EOL); 659 sysctl_createv(clog, 0, NULL, NULL, 660 CTLFLAG_PERMANENT, 661 CTLTYPE_INT, "ncpu", 662 SYSCTL_DESCR("Number of CPUs configured"), 663 NULL, 0, &ncpu, 0, 664 CTL_HW, HW_NCPU, CTL_EOL); 665 sysctl_createv(clog, 0, NULL, NULL, 666 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 667 CTLTYPE_INT, "byteorder", 668 SYSCTL_DESCR("System byte order"), 669 NULL, BYTE_ORDER, NULL, 0, 670 CTL_HW, HW_BYTEORDER, CTL_EOL); 671 u = ((u_int)physmem > (UINT_MAX / PAGE_SIZE)) ? 672 UINT_MAX : physmem * PAGE_SIZE; 673 sysctl_createv(clog, 0, NULL, NULL, 674 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 675 CTLTYPE_INT, "physmem", 676 SYSCTL_DESCR("Bytes of physical memory"), 677 NULL, u, NULL, 0, 678 CTL_HW, HW_PHYSMEM, CTL_EOL); 679 sysctl_createv(clog, 0, NULL, NULL, 680 CTLFLAG_PERMANENT, 681 CTLTYPE_INT, "usermem", 682 SYSCTL_DESCR("Bytes of non-kernel memory"), 683 sysctl_hw_usermem, 0, NULL, 0, 684 CTL_HW, HW_USERMEM, CTL_EOL); 685 sysctl_createv(clog, 0, NULL, NULL, 686 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 687 CTLTYPE_INT, "pagesize", 688 SYSCTL_DESCR("Software page size"), 689 NULL, PAGE_SIZE, NULL, 0, 690 CTL_HW, HW_PAGESIZE, CTL_EOL); 691 sysctl_createv(clog, 0, NULL, NULL, 692 CTLFLAG_PERMANENT, 693 CTLTYPE_STRING, "machine_arch", 694 SYSCTL_DESCR("Machine CPU class"), 695 NULL, 0, machine_arch, 0, 696 CTL_HW, HW_MACHINE_ARCH, CTL_EOL); 697 sysctl_createv(clog, 0, NULL, NULL, 698 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 699 CTLTYPE_INT, "alignbytes", 700 SYSCTL_DESCR("Alignment constraint for all possible " 701 "data types"), 702 NULL, ALIGNBYTES, NULL, 0, 703 CTL_HW, HW_ALIGNBYTES, CTL_EOL); 704 sysctl_createv(clog, 0, NULL, NULL, 705 CTLFLAG_PERMANENT|CTLFLAG_READWRITE|CTLFLAG_HEX, 706 CTLTYPE_STRING, "cnmagic", 707 SYSCTL_DESCR("Console magic key sequence"), 708 sysctl_hw_cnmagic, 0, NULL, CNS_LEN, 709 CTL_HW, HW_CNMAGIC, CTL_EOL); 710 q = (u_quad_t)physmem * PAGE_SIZE; 711 sysctl_createv(clog, 0, NULL, NULL, 712 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 713 CTLTYPE_QUAD, "physmem64", 714 SYSCTL_DESCR("Bytes of physical memory"), 715 NULL, q, NULL, 0, 716 CTL_HW, HW_PHYSMEM64, CTL_EOL); 717 sysctl_createv(clog, 0, NULL, NULL, 718 CTLFLAG_PERMANENT, 719 CTLTYPE_QUAD, "usermem64", 720 SYSCTL_DESCR("Bytes of non-kernel memory"), 721 sysctl_hw_usermem, 0, NULL, 0, 722 CTL_HW, HW_USERMEM64, CTL_EOL); 723 sysctl_createv(clog, 0, NULL, NULL, 724 CTLFLAG_PERMANENT, 725 CTLTYPE_INT, "ncpuonline", 726 SYSCTL_DESCR("Number of CPUs online"), 727 NULL, 0, &ncpuonline, 0, 728 CTL_HW, HW_NCPUONLINE, CTL_EOL); 729 } 730 731 #ifdef DEBUG 732 /* 733 * Debugging related system variables. 734 */ 735 struct ctldebug /* debug0, */ /* debug1, */ debug2, debug3, debug4; 736 struct ctldebug debug5, debug6, debug7, debug8, debug9; 737 struct ctldebug debug10, debug11, debug12, debug13, debug14; 738 struct ctldebug debug15, debug16, debug17, debug18, debug19; 739 static struct ctldebug *debugvars[CTL_DEBUG_MAXID] = { 740 &debug0, &debug1, &debug2, &debug3, &debug4, 741 &debug5, &debug6, &debug7, &debug8, &debug9, 742 &debug10, &debug11, &debug12, &debug13, &debug14, 743 &debug15, &debug16, &debug17, &debug18, &debug19, 744 }; 745 746 /* 747 * this setup routine is a replacement for debug_sysctl() 748 * 749 * note that it creates several nodes per defined debug variable 750 */ 751 SYSCTL_SETUP(sysctl_debug_setup, "sysctl debug subtree setup") 752 { 753 struct ctldebug *cdp; 754 char nodename[20]; 755 int i; 756 757 /* 758 * two ways here: 759 * 760 * the "old" way (debug.name -> value) which was emulated by 761 * the sysctl(8) binary 762 * 763 * the new way, which the sysctl(8) binary was actually using 764 765 node debug 766 node debug.0 767 string debug.0.name 768 int debug.0.value 769 int debug.name 770 771 */ 772 773 for (i = 0; i < CTL_DEBUG_MAXID; i++) { 774 cdp = debugvars[i]; 775 if (cdp->debugname == NULL || cdp->debugvar == NULL) 776 continue; 777 778 snprintf(nodename, sizeof(nodename), "debug%d", i); 779 sysctl_createv(clog, 0, NULL, NULL, 780 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 781 CTLTYPE_NODE, nodename, NULL, 782 NULL, 0, NULL, 0, 783 CTL_DEBUG, i, CTL_EOL); 784 sysctl_createv(clog, 0, NULL, NULL, 785 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 786 CTLTYPE_STRING, "name", NULL, 787 /*XXXUNCONST*/ 788 NULL, 0, __UNCONST(cdp->debugname), 0, 789 CTL_DEBUG, i, CTL_DEBUG_NAME, CTL_EOL); 790 sysctl_createv(clog, 0, NULL, NULL, 791 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 792 CTLTYPE_INT, "value", NULL, 793 NULL, 0, cdp->debugvar, 0, 794 CTL_DEBUG, i, CTL_DEBUG_VALUE, CTL_EOL); 795 sysctl_createv(clog, 0, NULL, NULL, 796 CTLFLAG_PERMANENT, 797 CTLTYPE_INT, cdp->debugname, NULL, 798 NULL, 0, cdp->debugvar, 0, 799 CTL_DEBUG, CTL_CREATE, CTL_EOL); 800 } 801 } 802 #endif /* DEBUG */ 803 804 /* 805 * ******************************************************************** 806 * section 2: private node-specific helper routines. 807 * ******************************************************************** 808 */ 809 810 #ifdef DIAGNOSTIC 811 static int 812 sysctl_kern_trigger_panic(SYSCTLFN_ARGS) 813 { 814 int newtrig, error; 815 struct sysctlnode node; 816 817 newtrig = 0; 818 node = *rnode; 819 node.sysctl_data = &newtrig; 820 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 821 if (error || newp == NULL) 822 return (error); 823 824 if (newtrig != 0) 825 panic("Panic triggered"); 826 827 return (error); 828 } 829 #endif 830 831 /* 832 * sysctl helper routine for kern.maxvnodes. Drain vnodes if 833 * new value is lower than desiredvnodes and then calls reinit 834 * routines that needs to adjust to the new value. 835 */ 836 static int 837 sysctl_kern_maxvnodes(SYSCTLFN_ARGS) 838 { 839 int error, new_vnodes, old_vnodes, new_max; 840 struct sysctlnode node; 841 842 new_vnodes = desiredvnodes; 843 node = *rnode; 844 node.sysctl_data = &new_vnodes; 845 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 846 if (error || newp == NULL) 847 return (error); 848 849 /* 850 * sysctl passes down unsigned values, require them 851 * to be positive 852 */ 853 if (new_vnodes <= 0) 854 return (EINVAL); 855 856 /* Limits: 75% of kmem and physical memory. */ 857 new_max = calc_cache_size(vmem_size(kmem_arena, VMEM_FREE|VMEM_ALLOC), 858 75, 75) / VNODE_COST; 859 if (new_vnodes > new_max) 860 new_vnodes = new_max; 861 862 old_vnodes = desiredvnodes; 863 desiredvnodes = new_vnodes; 864 error = vfs_drainvnodes(new_vnodes); 865 if (error) { 866 desiredvnodes = old_vnodes; 867 return (error); 868 } 869 vfs_reinit(); 870 nchreinit(); 871 872 return (0); 873 } 874 875 /* 876 * sysctl helper routine for rtc_offset - set time after changes 877 */ 878 static int 879 sysctl_kern_rtc_offset(SYSCTLFN_ARGS) 880 { 881 struct timespec ts, delta; 882 int error, new_rtc_offset; 883 struct sysctlnode node; 884 885 new_rtc_offset = rtc_offset; 886 node = *rnode; 887 node.sysctl_data = &new_rtc_offset; 888 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 889 if (error || newp == NULL) 890 return (error); 891 892 if (kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_TIME, 893 KAUTH_REQ_SYSTEM_TIME_RTCOFFSET, 894 KAUTH_ARG(new_rtc_offset), NULL, NULL)) 895 return (EPERM); 896 if (rtc_offset == new_rtc_offset) 897 return (0); 898 899 /* if we change the offset, adjust the time */ 900 nanotime(&ts); 901 delta.tv_sec = 60 * (new_rtc_offset - rtc_offset); 902 delta.tv_nsec = 0; 903 timespecadd(&ts, &delta, &ts); 904 rtc_offset = new_rtc_offset; 905 return (settime(l->l_proc, &ts)); 906 } 907 908 /* 909 * sysctl helper routine for kern.maxproc. Ensures that the new 910 * values are not too low or too high. 911 */ 912 static int 913 sysctl_kern_maxproc(SYSCTLFN_ARGS) 914 { 915 int error, nmaxproc; 916 struct sysctlnode node; 917 918 nmaxproc = maxproc; 919 node = *rnode; 920 node.sysctl_data = &nmaxproc; 921 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 922 if (error || newp == NULL) 923 return (error); 924 925 if (nmaxproc < 0 || nmaxproc >= PID_MAX) 926 return (EINVAL); 927 #ifdef __HAVE_CPU_MAXPROC 928 if (nmaxproc > cpu_maxproc()) 929 return (EINVAL); 930 #endif 931 maxproc = nmaxproc; 932 933 return (0); 934 } 935 936 /* 937 * sysctl helper function for kern.hostid. The hostid is a long, but 938 * we export it as an int, so we need to give it a little help. 939 */ 940 static int 941 sysctl_kern_hostid(SYSCTLFN_ARGS) 942 { 943 int error, inthostid; 944 struct sysctlnode node; 945 946 inthostid = hostid; /* XXX assumes sizeof int <= sizeof long */ 947 node = *rnode; 948 node.sysctl_data = &inthostid; 949 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 950 if (error || newp == NULL) 951 return (error); 952 953 hostid = (unsigned)inthostid; 954 955 return (0); 956 } 957 958 /* 959 * sysctl helper routine for kern.clockrate. Assembles a struct on 960 * the fly to be returned to the caller. 961 */ 962 static int 963 sysctl_kern_clockrate(SYSCTLFN_ARGS) 964 { 965 struct clockinfo clkinfo; 966 struct sysctlnode node; 967 968 clkinfo.tick = tick; 969 clkinfo.tickadj = tickadj; 970 clkinfo.hz = hz; 971 clkinfo.profhz = profhz; 972 clkinfo.stathz = stathz ? stathz : hz; 973 974 node = *rnode; 975 node.sysctl_data = &clkinfo; 976 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 977 } 978 979 /* 980 * sysctl helper routine for kern.msgbufsize and kern.msgbuf. For the 981 * former it merely checks the message buffer is set up. For the latter, 982 * it also copies out the data if necessary. 983 */ 984 static int 985 sysctl_msgbuf(SYSCTLFN_ARGS) 986 { 987 char *where = oldp; 988 size_t len, maxlen; 989 long beg, end; 990 extern kmutex_t log_lock; 991 int error; 992 993 if (!msgbufenabled || msgbufp->msg_magic != MSG_MAGIC) { 994 msgbufenabled = 0; 995 return (ENXIO); 996 } 997 998 switch (rnode->sysctl_num) { 999 case KERN_MSGBUFSIZE: { 1000 struct sysctlnode node = *rnode; 1001 int msg_bufs = (int)msgbufp->msg_bufs; 1002 node.sysctl_data = &msg_bufs; 1003 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1004 } 1005 case KERN_MSGBUF: 1006 break; 1007 default: 1008 return (EOPNOTSUPP); 1009 } 1010 1011 if (newp != NULL) 1012 return (EPERM); 1013 1014 if (oldp == NULL) { 1015 /* always return full buffer size */ 1016 *oldlenp = msgbufp->msg_bufs; 1017 return (0); 1018 } 1019 1020 sysctl_unlock(); 1021 1022 /* 1023 * First, copy from the write pointer to the end of 1024 * message buffer. 1025 */ 1026 error = 0; 1027 mutex_spin_enter(&log_lock); 1028 maxlen = MIN(msgbufp->msg_bufs, *oldlenp); 1029 beg = msgbufp->msg_bufx; 1030 end = msgbufp->msg_bufs; 1031 mutex_spin_exit(&log_lock); 1032 1033 while (maxlen > 0) { 1034 len = MIN(end - beg, maxlen); 1035 if (len == 0) 1036 break; 1037 /* XXX unlocked, but hardly matters. */ 1038 error = dcopyout(l, &msgbufp->msg_bufc[beg], where, len); 1039 if (error) 1040 break; 1041 where += len; 1042 maxlen -= len; 1043 1044 /* 1045 * ... then, copy from the beginning of message buffer to 1046 * the write pointer. 1047 */ 1048 beg = 0; 1049 end = msgbufp->msg_bufx; 1050 } 1051 1052 sysctl_relock(); 1053 return (error); 1054 } 1055 1056 /* 1057 * sysctl helper routine for kern.defcorename. In the case of a new 1058 * string being assigned, check that it's not a zero-length string. 1059 * (XXX the check in -current doesn't work, but do we really care?) 1060 */ 1061 static int 1062 sysctl_kern_defcorename(SYSCTLFN_ARGS) 1063 { 1064 int error; 1065 char *newcorename; 1066 struct sysctlnode node; 1067 1068 newcorename = PNBUF_GET(); 1069 node = *rnode; 1070 node.sysctl_data = &newcorename[0]; 1071 memcpy(node.sysctl_data, rnode->sysctl_data, MAXPATHLEN); 1072 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1073 if (error || newp == NULL) { 1074 goto done; 1075 } 1076 1077 /* 1078 * when sysctl_lookup() deals with a string, it's guaranteed 1079 * to come back nul terminated. So there. :) 1080 */ 1081 if (strlen(newcorename) == 0) { 1082 error = EINVAL; 1083 } else { 1084 memcpy(rnode->sysctl_data, node.sysctl_data, MAXPATHLEN); 1085 error = 0; 1086 } 1087 done: 1088 PNBUF_PUT(newcorename); 1089 return error; 1090 } 1091 1092 /* 1093 * sysctl helper routine for kern.cp_time node. Adds up cpu time 1094 * across all cpus. 1095 */ 1096 static int 1097 sysctl_kern_cptime(SYSCTLFN_ARGS) 1098 { 1099 struct sysctlnode node = *rnode; 1100 uint64_t *cp_time = NULL; 1101 int error, n = ncpu, i; 1102 struct cpu_info *ci; 1103 CPU_INFO_ITERATOR cii; 1104 1105 /* 1106 * if you specifically pass a buffer that is the size of the 1107 * sum, or if you are probing for the size, you get the "sum" 1108 * of cp_time (and the size thereof) across all processors. 1109 * 1110 * alternately, you can pass an additional mib number and get 1111 * cp_time for that particular processor. 1112 */ 1113 switch (namelen) { 1114 case 0: 1115 if (*oldlenp == sizeof(uint64_t) * CPUSTATES || oldp == NULL) { 1116 node.sysctl_size = sizeof(uint64_t) * CPUSTATES; 1117 n = -1; /* SUM */ 1118 } 1119 else { 1120 node.sysctl_size = n * sizeof(uint64_t) * CPUSTATES; 1121 n = -2; /* ALL */ 1122 } 1123 break; 1124 case 1: 1125 if (name[0] < 0 || name[0] >= n) 1126 return (ENOENT); /* ENOSUCHPROCESSOR */ 1127 node.sysctl_size = sizeof(uint64_t) * CPUSTATES; 1128 n = name[0]; 1129 /* 1130 * adjust these so that sysctl_lookup() will be happy 1131 */ 1132 name++; 1133 namelen--; 1134 break; 1135 default: 1136 return (EINVAL); 1137 } 1138 1139 cp_time = kmem_alloc(node.sysctl_size, KM_SLEEP); 1140 if (cp_time == NULL) 1141 return (ENOMEM); 1142 node.sysctl_data = cp_time; 1143 memset(cp_time, 0, node.sysctl_size); 1144 1145 for (CPU_INFO_FOREACH(cii, ci)) { 1146 if (n <= 0) { 1147 for (i = 0; i < CPUSTATES; i++) { 1148 cp_time[i] += ci->ci_schedstate.spc_cp_time[i]; 1149 } 1150 } 1151 /* 1152 * if a specific processor was requested and we just 1153 * did it, we're done here 1154 */ 1155 if (n == 0) 1156 break; 1157 /* 1158 * if doing "all", skip to next cp_time set for next processor 1159 */ 1160 if (n == -2) 1161 cp_time += CPUSTATES; 1162 /* 1163 * if we're doing a specific processor, we're one 1164 * processor closer 1165 */ 1166 if (n > 0) 1167 n--; 1168 } 1169 1170 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1171 kmem_free(node.sysctl_data, node.sysctl_size); 1172 return (error); 1173 } 1174 1175 #if NPTY > 0 1176 /* 1177 * sysctl helper routine for kern.maxptys. Ensures that any new value 1178 * is acceptable to the pty subsystem. 1179 */ 1180 static int 1181 sysctl_kern_maxptys(SYSCTLFN_ARGS) 1182 { 1183 int pty_maxptys(int, int); /* defined in kern/tty_pty.c */ 1184 int error, xmax; 1185 struct sysctlnode node; 1186 1187 /* get current value of maxptys */ 1188 xmax = pty_maxptys(0, 0); 1189 1190 node = *rnode; 1191 node.sysctl_data = &xmax; 1192 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1193 if (error || newp == NULL) 1194 return (error); 1195 1196 if (xmax != pty_maxptys(xmax, 1)) 1197 return (EINVAL); 1198 1199 return (0); 1200 } 1201 #endif /* NPTY > 0 */ 1202 1203 /* 1204 * sysctl helper routine to do kern.lwp.* work. 1205 */ 1206 static int 1207 sysctl_kern_lwp(SYSCTLFN_ARGS) 1208 { 1209 struct kinfo_lwp klwp; 1210 struct proc *p; 1211 struct lwp *l2, *l3; 1212 char *where, *dp; 1213 int pid, elem_size, elem_count; 1214 int buflen, needed, error; 1215 bool gotit; 1216 1217 if (namelen == 1 && name[0] == CTL_QUERY) 1218 return (sysctl_query(SYSCTLFN_CALL(rnode))); 1219 1220 dp = where = oldp; 1221 buflen = where != NULL ? *oldlenp : 0; 1222 error = needed = 0; 1223 1224 if (newp != NULL || namelen != 3) 1225 return (EINVAL); 1226 pid = name[0]; 1227 elem_size = name[1]; 1228 elem_count = name[2]; 1229 1230 sysctl_unlock(); 1231 if (pid == -1) { 1232 mutex_enter(proc_lock); 1233 PROCLIST_FOREACH(p, &allproc) { 1234 /* Grab a hold on the process. */ 1235 if (!rw_tryenter(&p->p_reflock, RW_READER)) { 1236 continue; 1237 } 1238 mutex_exit(proc_lock); 1239 1240 mutex_enter(p->p_lock); 1241 LIST_FOREACH(l2, &p->p_lwps, l_sibling) { 1242 if (buflen >= elem_size && elem_count > 0) { 1243 lwp_lock(l2); 1244 fill_lwp(l2, &klwp); 1245 lwp_unlock(l2); 1246 mutex_exit(p->p_lock); 1247 1248 /* 1249 * Copy out elem_size, but not 1250 * larger than the size of a 1251 * struct kinfo_proc2. 1252 */ 1253 error = dcopyout(l, &klwp, dp, 1254 min(sizeof(klwp), elem_size)); 1255 if (error) { 1256 rw_exit(&p->p_reflock); 1257 goto cleanup; 1258 } 1259 mutex_enter(p->p_lock); 1260 LIST_FOREACH(l3, &p->p_lwps, 1261 l_sibling) { 1262 if (l2 == l3) 1263 break; 1264 } 1265 if (l3 == NULL) { 1266 mutex_exit(p->p_lock); 1267 rw_exit(&p->p_reflock); 1268 error = EAGAIN; 1269 goto cleanup; 1270 } 1271 dp += elem_size; 1272 buflen -= elem_size; 1273 elem_count--; 1274 } 1275 needed += elem_size; 1276 } 1277 mutex_exit(p->p_lock); 1278 1279 /* Drop reference to process. */ 1280 mutex_enter(proc_lock); 1281 rw_exit(&p->p_reflock); 1282 } 1283 mutex_exit(proc_lock); 1284 } else { 1285 mutex_enter(proc_lock); 1286 p = proc_find(pid); 1287 if (p == NULL) { 1288 error = ESRCH; 1289 mutex_exit(proc_lock); 1290 goto cleanup; 1291 } 1292 /* Grab a hold on the process. */ 1293 gotit = rw_tryenter(&p->p_reflock, RW_READER); 1294 mutex_exit(proc_lock); 1295 if (!gotit) { 1296 error = ESRCH; 1297 goto cleanup; 1298 } 1299 1300 mutex_enter(p->p_lock); 1301 LIST_FOREACH(l2, &p->p_lwps, l_sibling) { 1302 if (buflen >= elem_size && elem_count > 0) { 1303 lwp_lock(l2); 1304 fill_lwp(l2, &klwp); 1305 lwp_unlock(l2); 1306 mutex_exit(p->p_lock); 1307 /* 1308 * Copy out elem_size, but not larger than 1309 * the size of a struct kinfo_proc2. 1310 */ 1311 error = dcopyout(l, &klwp, dp, 1312 min(sizeof(klwp), elem_size)); 1313 if (error) { 1314 rw_exit(&p->p_reflock); 1315 goto cleanup; 1316 } 1317 mutex_enter(p->p_lock); 1318 LIST_FOREACH(l3, &p->p_lwps, l_sibling) { 1319 if (l2 == l3) 1320 break; 1321 } 1322 if (l3 == NULL) { 1323 mutex_exit(p->p_lock); 1324 rw_exit(&p->p_reflock); 1325 error = EAGAIN; 1326 goto cleanup; 1327 } 1328 dp += elem_size; 1329 buflen -= elem_size; 1330 elem_count--; 1331 } 1332 needed += elem_size; 1333 } 1334 mutex_exit(p->p_lock); 1335 1336 /* Drop reference to process. */ 1337 rw_exit(&p->p_reflock); 1338 } 1339 1340 if (where != NULL) { 1341 *oldlenp = dp - where; 1342 if (needed > *oldlenp) { 1343 sysctl_relock(); 1344 return (ENOMEM); 1345 } 1346 } else { 1347 needed += KERN_LWPSLOP; 1348 *oldlenp = needed; 1349 } 1350 error = 0; 1351 cleanup: 1352 sysctl_relock(); 1353 return (error); 1354 } 1355 1356 /* 1357 * sysctl helper routine for kern.forkfsleep node. Ensures that the 1358 * given value is not too large or two small, and is at least one 1359 * timer tick if not zero. 1360 */ 1361 static int 1362 sysctl_kern_forkfsleep(SYSCTLFN_ARGS) 1363 { 1364 /* userland sees value in ms, internally is in ticks */ 1365 extern int forkfsleep; /* defined in kern/kern_fork.c */ 1366 int error, timo, lsleep; 1367 struct sysctlnode node; 1368 1369 lsleep = forkfsleep * 1000 / hz; 1370 node = *rnode; 1371 node.sysctl_data = &lsleep; 1372 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1373 if (error || newp == NULL) 1374 return (error); 1375 1376 /* refuse negative values, and overly 'long time' */ 1377 if (lsleep < 0 || lsleep > MAXSLP * 1000) 1378 return (EINVAL); 1379 1380 timo = mstohz(lsleep); 1381 1382 /* if the interval is >0 ms && <1 tick, use 1 tick */ 1383 if (lsleep != 0 && timo == 0) 1384 forkfsleep = 1; 1385 else 1386 forkfsleep = timo; 1387 1388 return (0); 1389 } 1390 1391 /* 1392 * sysctl helper routine for kern.root_partition 1393 */ 1394 static int 1395 sysctl_kern_root_partition(SYSCTLFN_ARGS) 1396 { 1397 int rootpart = DISKPART(rootdev); 1398 struct sysctlnode node = *rnode; 1399 1400 node.sysctl_data = &rootpart; 1401 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1402 } 1403 1404 /* 1405 * sysctl helper function for kern.drivers 1406 */ 1407 static int 1408 sysctl_kern_drivers(SYSCTLFN_ARGS) 1409 { 1410 int error; 1411 size_t buflen; 1412 struct kinfo_drivers kd; 1413 char *start, *where; 1414 const char *dname; 1415 int i; 1416 extern struct devsw_conv *devsw_conv; 1417 extern int max_devsw_convs; 1418 1419 start = where = oldp; 1420 buflen = *oldlenp; 1421 if (where == NULL) { 1422 *oldlenp = max_devsw_convs * sizeof kd; 1423 return 0; 1424 } 1425 1426 /* 1427 * An array of kinfo_drivers structures 1428 */ 1429 error = 0; 1430 sysctl_unlock(); 1431 mutex_enter(&device_lock); 1432 for (i = 0; i < max_devsw_convs; i++) { 1433 dname = devsw_conv[i].d_name; 1434 if (dname == NULL) 1435 continue; 1436 if (buflen < sizeof kd) { 1437 error = ENOMEM; 1438 break; 1439 } 1440 memset(&kd, 0, sizeof(kd)); 1441 kd.d_bmajor = devsw_conv[i].d_bmajor; 1442 kd.d_cmajor = devsw_conv[i].d_cmajor; 1443 strlcpy(kd.d_name, dname, sizeof kd.d_name); 1444 mutex_exit(&device_lock); 1445 error = dcopyout(l, &kd, where, sizeof kd); 1446 mutex_enter(&device_lock); 1447 if (error != 0) 1448 break; 1449 buflen -= sizeof kd; 1450 where += sizeof kd; 1451 } 1452 mutex_exit(&device_lock); 1453 sysctl_relock(); 1454 *oldlenp = where - start; 1455 return error; 1456 } 1457 1458 static int 1459 sysctl_security_setidcore(SYSCTLFN_ARGS) 1460 { 1461 int newsize, error; 1462 struct sysctlnode node; 1463 1464 node = *rnode; 1465 node.sysctl_data = &newsize; 1466 newsize = *(int *)rnode->sysctl_data; 1467 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1468 if (error || newp == NULL) 1469 return error; 1470 1471 if (kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_SETIDCORE, 1472 0, NULL, NULL, NULL)) 1473 return (EPERM); 1474 1475 *(int *)rnode->sysctl_data = newsize; 1476 1477 return 0; 1478 } 1479 1480 static int 1481 sysctl_security_setidcorename(SYSCTLFN_ARGS) 1482 { 1483 int error; 1484 char *newsetidcorename; 1485 struct sysctlnode node; 1486 1487 newsetidcorename = PNBUF_GET(); 1488 node = *rnode; 1489 node.sysctl_data = newsetidcorename; 1490 memcpy(node.sysctl_data, rnode->sysctl_data, MAXPATHLEN); 1491 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1492 if (error || newp == NULL) { 1493 goto out; 1494 } 1495 if (kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_SETIDCORE, 1496 0, NULL, NULL, NULL)) { 1497 error = EPERM; 1498 goto out; 1499 } 1500 if (strlen(newsetidcorename) == 0) { 1501 error = EINVAL; 1502 goto out; 1503 } 1504 memcpy(rnode->sysctl_data, node.sysctl_data, MAXPATHLEN); 1505 out: 1506 PNBUF_PUT(newsetidcorename); 1507 return error; 1508 } 1509 1510 /* 1511 * sysctl helper routine for kern.cp_id node. Maps cpus to their 1512 * cpuids. 1513 */ 1514 static int 1515 sysctl_kern_cpid(SYSCTLFN_ARGS) 1516 { 1517 struct sysctlnode node = *rnode; 1518 uint64_t *cp_id = NULL; 1519 int error, n = ncpu; 1520 struct cpu_info *ci; 1521 CPU_INFO_ITERATOR cii; 1522 1523 /* 1524 * Here you may either retrieve a single cpu id or the whole 1525 * set. The size you get back when probing depends on what 1526 * you ask for. 1527 */ 1528 switch (namelen) { 1529 case 0: 1530 node.sysctl_size = n * sizeof(uint64_t); 1531 n = -2; /* ALL */ 1532 break; 1533 case 1: 1534 if (name[0] < 0 || name[0] >= n) 1535 return (ENOENT); /* ENOSUCHPROCESSOR */ 1536 node.sysctl_size = sizeof(uint64_t); 1537 n = name[0]; 1538 /* 1539 * adjust these so that sysctl_lookup() will be happy 1540 */ 1541 name++; 1542 namelen--; 1543 break; 1544 default: 1545 return (EINVAL); 1546 } 1547 1548 cp_id = kmem_alloc(node.sysctl_size, KM_SLEEP); 1549 if (cp_id == NULL) 1550 return (ENOMEM); 1551 node.sysctl_data = cp_id; 1552 memset(cp_id, 0, node.sysctl_size); 1553 1554 for (CPU_INFO_FOREACH(cii, ci)) { 1555 if (n <= 0) 1556 cp_id[0] = cpu_index(ci); 1557 /* 1558 * if a specific processor was requested and we just 1559 * did it, we're done here 1560 */ 1561 if (n == 0) 1562 break; 1563 /* 1564 * if doing "all", skip to next cp_id slot for next processor 1565 */ 1566 if (n == -2) 1567 cp_id++; 1568 /* 1569 * if we're doing a specific processor, we're one 1570 * processor closer 1571 */ 1572 if (n > 0) 1573 n--; 1574 } 1575 1576 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1577 kmem_free(node.sysctl_data, node.sysctl_size); 1578 return (error); 1579 } 1580 1581 /* 1582 * sysctl helper routine for hw.usermem and hw.usermem64. Values are 1583 * calculate on the fly taking into account integer overflow and the 1584 * current wired count. 1585 */ 1586 static int 1587 sysctl_hw_usermem(SYSCTLFN_ARGS) 1588 { 1589 u_int ui; 1590 u_quad_t uq; 1591 struct sysctlnode node; 1592 1593 node = *rnode; 1594 switch (rnode->sysctl_num) { 1595 case HW_USERMEM: 1596 if ((ui = physmem - uvmexp.wired) > (UINT_MAX / PAGE_SIZE)) 1597 ui = UINT_MAX; 1598 else 1599 ui *= PAGE_SIZE; 1600 node.sysctl_data = &ui; 1601 break; 1602 case HW_USERMEM64: 1603 uq = (u_quad_t)(physmem - uvmexp.wired) * PAGE_SIZE; 1604 node.sysctl_data = &uq; 1605 break; 1606 default: 1607 return (EINVAL); 1608 } 1609 1610 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1611 } 1612 1613 /* 1614 * sysctl helper routine for kern.cnmagic node. Pulls the old value 1615 * out, encoded, and stuffs the new value in for decoding. 1616 */ 1617 static int 1618 sysctl_hw_cnmagic(SYSCTLFN_ARGS) 1619 { 1620 char magic[CNS_LEN]; 1621 int error; 1622 struct sysctlnode node; 1623 1624 if (oldp) 1625 cn_get_magic(magic, CNS_LEN); 1626 node = *rnode; 1627 node.sysctl_data = &magic[0]; 1628 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1629 if (error || newp == NULL) 1630 return (error); 1631 1632 return (cn_set_magic(magic)); 1633 } 1634 1635 /* 1636 * ******************************************************************** 1637 * section 3: public helper routines that are used for more than one 1638 * node 1639 * ******************************************************************** 1640 */ 1641 1642 /* 1643 * sysctl helper routine for the kern.root_device node and some ports' 1644 * machdep.root_device nodes. 1645 */ 1646 int 1647 sysctl_root_device(SYSCTLFN_ARGS) 1648 { 1649 struct sysctlnode node; 1650 1651 node = *rnode; 1652 node.sysctl_data = __UNCONST(device_xname(root_device)); 1653 node.sysctl_size = strlen(device_xname(root_device)) + 1; 1654 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1655 } 1656 1657 /* 1658 * sysctl helper routine for kern.consdev, dependent on the current 1659 * state of the console. Also used for machdep.console_device on some 1660 * ports. 1661 */ 1662 int 1663 sysctl_consdev(SYSCTLFN_ARGS) 1664 { 1665 dev_t consdev; 1666 uint32_t oconsdev; 1667 struct sysctlnode node; 1668 1669 if (cn_tab != NULL) 1670 consdev = cn_tab->cn_dev; 1671 else 1672 consdev = NODEV; 1673 node = *rnode; 1674 switch (*oldlenp) { 1675 case sizeof(consdev): 1676 node.sysctl_data = &consdev; 1677 node.sysctl_size = sizeof(consdev); 1678 break; 1679 case sizeof(oconsdev): 1680 oconsdev = (uint32_t)consdev; 1681 node.sysctl_data = &oconsdev; 1682 node.sysctl_size = sizeof(oconsdev); 1683 break; 1684 default: 1685 return EINVAL; 1686 } 1687 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1688 } 1689 1690 /* 1691 * ******************************************************************** 1692 * section 4: support for some helpers 1693 * ******************************************************************** 1694 */ 1695 1696 1697 /* 1698 * Fill in a kinfo_lwp structure for the specified lwp. 1699 */ 1700 static void 1701 fill_lwp(struct lwp *l, struct kinfo_lwp *kl) 1702 { 1703 struct proc *p = l->l_proc; 1704 struct timeval tv; 1705 1706 KASSERT(lwp_locked(l, NULL)); 1707 1708 memset(kl, 0, sizeof(*kl)); 1709 1710 kl->l_forw = 0; 1711 kl->l_back = 0; 1712 kl->l_laddr = PTRTOUINT64(l); 1713 kl->l_addr = PTRTOUINT64(l->l_addr); 1714 kl->l_stat = l->l_stat; 1715 kl->l_lid = l->l_lid; 1716 kl->l_flag = L_INMEM; 1717 kl->l_flag |= sysctl_map_flags(sysctl_lwpprflagmap, l->l_prflag); 1718 kl->l_flag |= sysctl_map_flags(sysctl_lwpflagmap, l->l_flag); 1719 1720 kl->l_swtime = l->l_swtime; 1721 kl->l_slptime = l->l_slptime; 1722 if (l->l_stat == LSONPROC) 1723 kl->l_schedflags = l->l_cpu->ci_schedstate.spc_flags; 1724 else 1725 kl->l_schedflags = 0; 1726 kl->l_priority = lwp_eprio(l); 1727 kl->l_usrpri = l->l_priority; 1728 if (l->l_wchan) 1729 strncpy(kl->l_wmesg, l->l_wmesg, sizeof(kl->l_wmesg)); 1730 kl->l_wchan = PTRTOUINT64(l->l_wchan); 1731 kl->l_cpuid = cpu_index(l->l_cpu); 1732 bintime2timeval(&l->l_rtime, &tv); 1733 kl->l_rtime_sec = tv.tv_sec; 1734 kl->l_rtime_usec = tv.tv_usec; 1735 kl->l_cpticks = l->l_cpticks; 1736 kl->l_pctcpu = l->l_pctcpu; 1737 kl->l_pid = p->p_pid; 1738 if (l->l_name == NULL) 1739 kl->l_name[0] = '\0'; 1740 else 1741 strlcpy(kl->l_name, l->l_name, sizeof(kl->l_name)); 1742 } 1743
Indexes created Wed Oct 01 15:09:59 GMT 2025