1/* 2 * Copyright (c) 2000-2006 Apple Computer, Inc. All rights reserved. 3 * 4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5 * 6 * This file contains Original Code and/or Modifications of Original Code 7 * as defined in and that are subject to the Apple Public Source License 8 * Version 2.0 (the 'License'). You may not use this file except in 9 * compliance with the License. The rights granted to you under the License 10 * may not be used to create, or enable the creation or redistribution of, 11 * unlawful or unlicensed copies of an Apple operating system, or to 12 * circumvent, violate, or enable the circumvention or violation of, any 13 * terms of an Apple operating system software license agreement. 14 * 15 * Please obtain a copy of the License at 16 * http://www.opensource.apple.com/apsl/ and read it before using this file. 17 * 18 * The Original Code and all software distributed under the License are 19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23 * Please see the License for the specific language governing rights and 24 * limitations under the License. 25 * 26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27 */ 28/* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */ 29/* 30 * Copyright (c) 1989, 1993 31 * The Regents of the University of California. All rights reserved. 32 * 33 * This code is derived from software contributed to Berkeley by 34 * Mike Karels at Berkeley Software Design, Inc. 35 * 36 * Redistribution and use in source and binary forms, with or without 37 * modification, are permitted provided that the following conditions 38 * are met: 39 * 1. Redistributions of source code must retain the above copyright 40 * notice, this list of conditions and the following disclaimer. 41 * 2. Redistributions in binary form must reproduce the above copyright 42 * notice, this list of conditions and the following disclaimer in the 43 * documentation and/or other materials provided with the distribution. 44 * 3. All advertising materials mentioning features or use of this software 45 * must display the following acknowledgement: 46 * This product includes software developed by the University of 47 * California, Berkeley and its contributors. 48 * 4. Neither the name of the University nor the names of its contributors 49 * may be used to endorse or promote products derived from this software 50 * without specific prior written permission. 51 * 52 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 53 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 54 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 55 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 56 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 57 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 58 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 59 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 60 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 61 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 62 * SUCH DAMAGE. 63 * 64 * @(#)sysctl.h 8.1 (Berkeley) 6/2/93 65 */ 66/* 67 * NOTICE: This file was modified by SPARTA, Inc. in 2005 to introduce 68 * support for mandatory and extensible security protections. This notice 69 * is included in support of clause 2.2 (b) of the Apple Public License, 70 * Version 2.0. 71 */ 72 73#ifndef _SYS_SYSCTL_H_ 74#define _SYS_SYSCTL_H_ 75 76/* 77 * These are for the eproc structure defined below. 78 */ 79#include <sys/cdefs.h> 80 81#include <sys/appleapiopts.h> 82#ifndef KERNEL 83#include <sys/time.h> 84#include <sys/ucred.h> 85#else 86#ifndef XNU_KERNEL_PRIVATE 87#include <libkern/sysctl.h> 88#endif 89#endif 90#include <sys/proc.h> 91#include <sys/vm.h> 92 93#ifdef XNU_KERNEL_PRIVATE 94#include <sys/linker_set.h> 95#endif 96 97/* 98 * Definitions for sysctl call. The sysctl call uses a hierarchical name 99 * for objects that can be examined or modified. The name is expressed as 100 * a sequence of integers. Like a file path name, the meaning of each 101 * component depends on its place in the hierarchy. The top-level and kern 102 * identifiers are defined here, and other identifiers are defined in the 103 * respective subsystem header files. 104 */ 105 106#define CTL_MAXNAME 12 /* largest number of components supported */ 107 108/* 109 * Each subsystem defined by sysctl defines a list of variables 110 * for that subsystem. Each name is either a node with further 111 * levels defined below it, or it is a leaf of some particular 112 * type given below. Each sysctl level defines a set of name/type 113 * pairs to be used by sysctl(1) in manipulating the subsystem. 114 * 115 * When declaring new sysctl names, use the CTLFLAG_LOCKED flag in the 116 * type to indicate that all necessary locking will be handled 117 * within the sysctl. 118 * 119 * Any sysctl defined without CTLFLAG_LOCKED is considered legacy 120 * and will be protected by a global mutex. 121 * 122 * Note: This is not optimal, so it is best to handle locking 123 * yourself, if you are able to do so. A simple design 124 * pattern for use to avoid in a single function known 125 * to potentially be in the paging path ot doing a DMA 126 * to physical memory in a user space process is: 127 * 128 * lock 129 * perform operation vs. local buffer 130 * unlock 131 * SYSCTL_OUT(rey, local buffer, length) 132 * 133 * ...this assumes you are not using a deep call graph 134 * or are unable to pass a local buffer address as a 135 * parameter into your deep call graph. 136 * 137 * Note that very large user buffers can fail the wire 138 * if to do so would require more physical pages than 139 * are available (the caller will get an ENOMEM error, 140 * see sysctl_mem_hold() for details). 141 */ 142struct ctlname { 143 char *ctl_name; /* subsystem name */ 144 int ctl_type; /* type of name */ 145}; 146 147#define CTLTYPE 0xf /* Mask for the type */ 148#define CTLTYPE_NODE 1 /* name is a node */ 149#define CTLTYPE_INT 2 /* name describes an integer */ 150#define CTLTYPE_STRING 3 /* name describes a string */ 151#define CTLTYPE_QUAD 4 /* name describes a 64-bit number */ 152#define CTLTYPE_OPAQUE 5 /* name describes a structure */ 153#define CTLTYPE_STRUCT CTLTYPE_OPAQUE /* name describes a structure */ 154 155#define CTLFLAG_RD 0x80000000 /* Allow reads of variable */ 156#define CTLFLAG_WR 0x40000000 /* Allow writes to the variable */ 157#define CTLFLAG_RW (CTLFLAG_RD|CTLFLAG_WR) 158#define CTLFLAG_NOLOCK 0x20000000 /* XXX Don't Lock */ 159#define CTLFLAG_ANYBODY 0x10000000 /* All users can set this var */ 160#define CTLFLAG_SECURE 0x08000000 /* Permit set only if securelevel<=0 */ 161#define CTLFLAG_MASKED 0x04000000 /* deprecated variable, do not display */ 162#define CTLFLAG_NOAUTO 0x02000000 /* do not auto-register */ 163#define CTLFLAG_KERN 0x01000000 /* valid inside the kernel */ 164#define CTLFLAG_LOCKED 0x00800000 /* node will handle locking itself */ 165#define CTLFLAG_OID2 0x00400000 /* struct sysctl_oid has version info */ 166 167/* 168 * USE THIS instead of a hardwired number from the categories below 169 * to get dynamically assigned sysctl entries using the linker-set 170 * technology. This is the way nearly all new sysctl variables should 171 * be implemented. 172 * 173 * e.g. SYSCTL_INT(_parent, OID_AUTO, name, CTLFLAG_RW, &variable, 0, ""); 174 * 175 * Note that linker set technology will automatically register all nodes 176 * declared like this on kernel initialization, UNLESS they are defined 177 * in I/O-Kit. In this case, you have to call sysctl_register_oid() 178 * manually - just like in a KEXT. 179 */ 180#define OID_AUTO (-1) 181#define OID_AUTO_START 100 /* conventional */ 182 183#ifdef KERNEL 184#define SYSCTL_HANDLER_ARGS (struct sysctl_oid *oidp, void *arg1, int arg2, \ 185 struct sysctl_req *req) 186 187 188/* 189 * This describes the access space for a sysctl request. This is needed 190 * so that we can use the interface from the kernel or from user-space. 191 */ 192struct sysctl_req { 193 struct proc *p; 194 int lock; 195 user_addr_t oldptr; /* pointer to user supplied buffer */ 196 size_t oldlen; /* user buffer length (also returned) */ 197 size_t oldidx; /* total data iteratively copied out */ 198 int (*oldfunc)(struct sysctl_req *, const void *, size_t); 199 user_addr_t newptr; /* buffer containing new value */ 200 size_t newlen; /* length of new value */ 201 size_t newidx; /* total data iteratively copied in */ 202 int (*newfunc)(struct sysctl_req *, void *, size_t); 203}; 204 205SLIST_HEAD(sysctl_oid_list, sysctl_oid); 206 207#define SYSCTL_OID_VERSION 1 /* current OID structure version */ 208 209/* 210 * This describes one "oid" in the MIB tree. Potentially more nodes can 211 * be hidden behind it, expanded by the handler. 212 * 213 * NOTES: We implement binary comparibility between CTLFLAG_OID2 and 214 * pre-CTLFLAG_OID2 structure in sysctl_register_oid() and in 215 * sysctl_unregister_oid() using the fact that the fields up 216 * to oid_fmt are unchanged, and that the field immediately 217 * following is on an alignment boundary following a pointer 218 * type and is also a pointer. This lets us get the previous 219 * size of the structure, and the copy-cut-off point, using 220 * the offsetof() language primitive, and these values are 221 * used in conjunction with the fact that earlier and future 222 * statically compiled sysctl_oid structures are declared via 223 * macros. This lets us overload the macros so that the addition 224 * of the CTLFLAG_OID2 in newly compiled code containing sysctl 225 * node declarations, subsequently allowing us to to avoid 226 * changing the KPI used for non-static (un)registration in 227 * KEXTs. 228 * 229 * This depends on the fact that people declare SYSCTLs, 230 * rather than declaring sysctl_oid structures. All new code 231 * should avoid declaring struct sysctl_oid's directly without 232 * the macros; the current risk for this is limited to losing 233 * your description field and ending up with a malloc'ed copy, 234 * as if it were a legacy binary static declaration via SYSCTL; 235 * in the future, we may deprecate access to a named structure 236 * type in third party code. Use the macros, or our code will 237 * end up with compile errors when that happens. 238 * 239 * Please try to include a long description of the field in any 240 * new sysctl declarations (all the macros support this). This 241 * field may be the only human readable documentation your users 242 * get for your sysctl. 243 */ 244struct sysctl_oid { 245 struct sysctl_oid_list *oid_parent; 246 SLIST_ENTRY(sysctl_oid) oid_link; 247 int oid_number; 248 int oid_kind; 249 void *oid_arg1; 250 int oid_arg2; 251 const char *oid_name; 252 int (*oid_handler) SYSCTL_HANDLER_ARGS; 253 const char *oid_fmt; 254 const char *oid_descr; /* offsetof() field / long description */ 255 int oid_version; 256 int oid_refcnt; 257}; 258 259#define SYSCTL_IN(r, p, l) (r->newfunc)(r, p, l) 260#define SYSCTL_OUT(r, p, l) (r->oldfunc)(r, p, l) 261 262typedef int (* sysctl_handler_t) SYSCTL_HANDLER_ARGS; 263 264__BEGIN_DECLS 265 266/* old interface */ 267int sysctl_handle_int SYSCTL_HANDLER_ARGS; 268int sysctl_handle_long SYSCTL_HANDLER_ARGS; 269int sysctl_handle_quad SYSCTL_HANDLER_ARGS; 270int sysctl_handle_int2quad SYSCTL_HANDLER_ARGS; 271int sysctl_handle_string SYSCTL_HANDLER_ARGS; 272int sysctl_handle_opaque SYSCTL_HANDLER_ARGS; 273/* new interface */ 274int sysctl_io_number(struct sysctl_req *req, long long bigValue, size_t valueSize, void *pValue, int *changed); 275int sysctl_io_string(struct sysctl_req *req, char *pValue, size_t valueSize, int trunc, int *changed); 276int sysctl_io_opaque(struct sysctl_req *req, void *pValue, size_t valueSize, int *changed); 277 278/* 279 * These functions are used to add/remove an oid from the mib. 280 */ 281void sysctl_register_oid(struct sysctl_oid *oidp); 282void sysctl_unregister_oid(struct sysctl_oid *oidp); 283 284/* Not exported */ 285void sysctl_register_fixed(void); 286 287__END_DECLS 288 289/* Declare an oid to allow child oids to be added to it. */ 290#define SYSCTL_DECL(name) \ 291 extern struct sysctl_oid_list sysctl_##name##_children 292 293#ifdef XNU_KERNEL_PRIVATE 294#define SYSCTL_LINKER_SET_ENTRY LINKER_SET_ENTRY 295#else 296#define SYSCTL_LINKER_SET_ENTRY(a, b) 297#endif 298/* 299 * Macros to define sysctl entries. Which to use? Pure data that are 300 * returned without modification, SYSCTL_<data type> is for you, like 301 * SYSCTL_QUAD for a 64-bit value. When you want to run a handler of your 302 * own, SYSCTL_PROC. 303 * 304 * parent: parent in name hierarchy (e.g. _kern for "kern") 305 * nbr: ID. Almost certainly OID_AUTO ("pick one for me") for you. 306 * name: name for this particular item (e.g. "thesysctl" for "kern.thesysctl") 307 * kind/access: Control flags (CTLFLAG_*). Some notable options include: 308 * CTLFLAG_ANYBODY: non-root users allowed 309 * CTLFLAG_MASKED: don't show in sysctl listing in userland 310 * CTLFLAG_LOCKED: does own locking (no additional protection needed) 311 * CTLFLAG_KERN: valid inside kernel (best avoided generally) 312 * CTLFLAG_WR: "new" value accepted 313 * a1, a2: entry-data, passed to handler (see specific macros) 314 * Format String: Tells "sysctl" tool how to print data from this entry. 315 * "A" - string 316 * "I" - list of integers. "IU" - list of unsigned integers. space-separated. 317 * "-" - do not print 318 * "L" - longs, as ints with I 319 * "P" - pointer 320 * "Q" - quads 321 * "S","T" - clock info, see sysctl.c in system_cmds (you probably don't need this) 322 * Description: unused 323 */ 324 325 326/* This constructs a "raw" MIB oid. */ 327#define SYSCTL_STRUCT_INIT(parent, nbr, name, kind, a1, a2, handler, fmt, descr) \ 328 { \ 329 &sysctl_##parent##_children, { 0 }, \ 330 nbr, (int)(kind|CTLFLAG_OID2), a1, (int)(a2), #name, handler, fmt, descr, SYSCTL_OID_VERSION, 0 \ 331 } 332 333#define SYSCTL_OID(parent, nbr, name, kind, a1, a2, handler, fmt, descr) \ 334 struct sysctl_oid sysctl_##parent##_##name = SYSCTL_STRUCT_INIT(parent, nbr, name, kind, a1, a2, handler, fmt, descr); \ 335 SYSCTL_LINKER_SET_ENTRY(__sysctl_set, sysctl_##parent##_##name) 336 337/* This constructs a node from which other oids can hang. */ 338#define SYSCTL_NODE(parent, nbr, name, access, handler, descr) \ 339 struct sysctl_oid_list sysctl_##parent##_##name##_children; \ 340 SYSCTL_OID(parent, nbr, name, CTLTYPE_NODE|access, \ 341 (void*)&sysctl_##parent##_##name##_children, 0, handler, \ 342 "N", descr); 343 344/* Oid for a string. len can be 0 to indicate '\0' termination. */ 345#define SYSCTL_STRING(parent, nbr, name, access, arg, len, descr) \ 346 SYSCTL_OID(parent, nbr, name, CTLTYPE_STRING|access, \ 347 arg, len, sysctl_handle_string, "A", descr) 348 349#define SYSCTL_COMPAT_INT(parent, nbr, name, access, ptr, val, descr) \ 350 SYSCTL_OID(parent, nbr, name, CTLTYPE_INT|access, \ 351 ptr, val, sysctl_handle_int, "I", descr) 352 353#define SYSCTL_COMPAT_UINT(parent, nbr, name, access, ptr, val, descr) \ 354 SYSCTL_OID(parent, nbr, name, CTLTYPE_INT|access, \ 355 ptr, val, sysctl_handle_int, "IU", descr) 356 357/* Oid for an int. If ptr is NULL, val is returned. */ 358#define SYSCTL_INT(parent, nbr, name, access, ptr, val, descr) \ 359 SYSCTL_OID(parent, nbr, name, CTLTYPE_INT|access, \ 360 ptr, val, sysctl_handle_int, "I", descr); \ 361 typedef char _sysctl_##parent##_##name##_size_check[(__builtin_constant_p(ptr) || sizeof(*(ptr)) == sizeof(int)) ? 0 : -1]; 362 363/* Oid for an unsigned int. If ptr is NULL, val is returned. */ 364#define SYSCTL_UINT(parent, nbr, name, access, ptr, val, descr) \ 365 SYSCTL_OID(parent, nbr, name, CTLTYPE_INT|access, \ 366 ptr, val, sysctl_handle_int, "IU", descr); \ 367 typedef char _sysctl_##parent##_##name##_size_check[(__builtin_constant_p(ptr) || sizeof(*(ptr)) == sizeof(unsigned int)) ? 0 : -1]; 368 369/* Oid for a long. The pointer must be non NULL. */ 370#define SYSCTL_LONG(parent, nbr, name, access, ptr, descr) \ 371 SYSCTL_OID(parent, nbr, name, CTLTYPE_INT|access, \ 372 ptr, 0, sysctl_handle_long, "L", descr); \ 373 typedef char _sysctl_##parent##_##name##_size_check[(__builtin_constant_p(ptr) || sizeof(*(ptr)) == sizeof(long)) ? 0 : -1]; 374 375/* Oid for a quad. The pointer must be non NULL. */ 376#define SYSCTL_QUAD(parent, nbr, name, access, ptr, descr) \ 377 SYSCTL_OID(parent, nbr, name, CTLTYPE_QUAD|access, \ 378 ptr, 0, sysctl_handle_quad, "Q", descr); \ 379 typedef char _sysctl_##parent##_##name##_size_check[(__builtin_constant_p(ptr) || sizeof(*(ptr)) == sizeof(long long)) ? 0 : -1]; 380 381/* Oid for an opaque object. Specified by a pointer and a length. */ 382#define SYSCTL_OPAQUE(parent, nbr, name, access, ptr, len, fmt, descr) \ 383 SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|access, \ 384 ptr, len, sysctl_handle_opaque, fmt, descr) 385 386/* Oid for a struct. Specified by a pointer and a type. */ 387#define SYSCTL_STRUCT(parent, nbr, name, access, ptr, type, descr) \ 388 SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|access, \ 389 ptr, sizeof(struct type), sysctl_handle_opaque, \ 390 "S," #type, descr) 391 392/* 393 * Oid for a procedure. Specified by a pointer and an arg. 394 * CTLTYPE_* macros can determine how the "sysctl" tool deals with 395 * input (e.g. converting to int). 396 */ 397#define SYSCTL_PROC(parent, nbr, name, access, ptr, arg, handler, fmt, descr) \ 398 SYSCTL_OID(parent, nbr, name, access, \ 399 ptr, arg, handler, fmt, descr) 400 401 402extern struct sysctl_oid_list sysctl__children; 403SYSCTL_DECL(_kern); 404SYSCTL_DECL(_sysctl); 405SYSCTL_DECL(_vm); 406SYSCTL_DECL(_vfs); 407SYSCTL_DECL(_net); 408SYSCTL_DECL(_debug); 409SYSCTL_DECL(_hw); 410SYSCTL_DECL(_machdep); 411SYSCTL_DECL(_user); 412 413#endif /* KERNEL */ 414 415#ifdef XNU_KERNEL_PRIVATE 416#define SYSCTL_DEF_ENABLED 417#else 418#ifndef KERNEL 419#define SYSCTL_DEF_ENABLED 420#endif 421#endif 422 423#ifdef SYSCTL_DEF_ENABLED 424/* 425 * Top-level identifiers 426 */ 427#define CTL_UNSPEC 0 /* unused */ 428#define CTL_KERN 1 /* "high kernel": proc, limits */ 429#define CTL_VM 2 /* virtual memory */ 430#define CTL_VFS 3 /* file system, mount type is next */ 431#define CTL_NET 4 /* network, see socket.h */ 432#define CTL_DEBUG 5 /* debugging parameters */ 433#define CTL_HW 6 /* generic cpu/io */ 434#define CTL_MACHDEP 7 /* machine dependent */ 435#define CTL_USER 8 /* user-level */ 436#define CTL_MAXID 9 /* number of valid top-level ids */ 437 438#define CTL_NAMES { \ 439 { 0, 0 }, \ 440 { "kern", CTLTYPE_NODE }, \ 441 { "vm", CTLTYPE_NODE }, \ 442 { "vfs", CTLTYPE_NODE }, \ 443 { "net", CTLTYPE_NODE }, \ 444 { "debug", CTLTYPE_NODE }, \ 445 { "hw", CTLTYPE_NODE }, \ 446 { "machdep", CTLTYPE_NODE }, \ 447 { "user", CTLTYPE_NODE }, \ 448} 449 450/* 451 * CTL_KERN identifiers 452 */ 453#define KERN_OSTYPE 1 /* string: system version */ 454#define KERN_OSRELEASE 2 /* string: system release */ 455#define KERN_OSREV 3 /* int: system revision */ 456#define KERN_VERSION 4 /* string: compile time info */ 457#define KERN_MAXVNODES 5 /* int: max vnodes */ 458#define KERN_MAXPROC 6 /* int: max processes */ 459#define KERN_MAXFILES 7 /* int: max open files */ 460#define KERN_ARGMAX 8 /* int: max arguments to exec */ 461#define KERN_SECURELVL 9 /* int: system security level */ 462#define KERN_HOSTNAME 10 /* string: hostname */ 463#define KERN_HOSTID 11 /* int: host identifier */ 464#define KERN_CLOCKRATE 12 /* struct: struct clockrate */ 465#define KERN_VNODE 13 /* struct: vnode structures */ 466#define KERN_PROC 14 /* struct: process entries */ 467#define KERN_FILE 15 /* struct: file entries */ 468#define KERN_PROF 16 /* node: kernel profiling info */ 469#define KERN_POSIX1 17 /* int: POSIX.1 version */ 470#define KERN_NGROUPS 18 /* int: # of supplemental group ids */ 471#define KERN_JOB_CONTROL 19 /* int: is job control available */ 472#define KERN_SAVED_IDS 20 /* int: saved set-user/group-ID */ 473#define KERN_BOOTTIME 21 /* struct: time kernel was booted */ 474#define KERN_NISDOMAINNAME 22 /* string: YP domain name */ 475#define KERN_DOMAINNAME KERN_NISDOMAINNAME 476#define KERN_MAXPARTITIONS 23 /* int: number of partitions/disk */ 477#define KERN_KDEBUG 24 /* int: kernel trace points */ 478#define KERN_UPDATEINTERVAL 25 /* int: update process sleep time */ 479#define KERN_OSRELDATE 26 /* int: OS release date */ 480#define KERN_NTP_PLL 27 /* node: NTP PLL control */ 481#define KERN_BOOTFILE 28 /* string: name of booted kernel */ 482#define KERN_MAXFILESPERPROC 29 /* int: max open files per proc */ 483#define KERN_MAXPROCPERUID 30 /* int: max processes per uid */ 484#define KERN_DUMPDEV 31 /* dev_t: device to dump on */ 485#define KERN_IPC 32 /* node: anything related to IPC */ 486#define KERN_DUMMY 33 /* unused */ 487#define KERN_PS_STRINGS 34 /* int: address of PS_STRINGS */ 488#define KERN_USRSTACK32 35 /* int: address of USRSTACK */ 489#define KERN_LOGSIGEXIT 36 /* int: do we log sigexit procs? */ 490#define KERN_SYMFILE 37 /* string: kernel symbol filename */ 491#define KERN_PROCARGS 38 492 /* 39 was KERN_PCSAMPLES... now deprecated */ 493#define KERN_NETBOOT 40 /* int: are we netbooted? 1=yes,0=no */ 494 /* 41 was KERN_PANICINFO : panic UI information (deprecated) */ 495#define KERN_SYSV 42 /* node: System V IPC information */ 496#define KERN_AFFINITY 43 /* xxx */ 497#define KERN_TRANSLATE 44 /* xxx */ 498#define KERN_CLASSIC KERN_TRANSLATE /* XXX backwards compat */ 499#define KERN_EXEC 45 /* xxx */ 500#define KERN_CLASSICHANDLER KERN_EXEC /* XXX backwards compatibility */ 501#define KERN_AIOMAX 46 /* int: max aio requests */ 502#define KERN_AIOPROCMAX 47 /* int: max aio requests per process */ 503#define KERN_AIOTHREADS 48 /* int: max aio worker threads */ 504#ifdef __APPLE_API_UNSTABLE 505#define KERN_PROCARGS2 49 506#endif /* __APPLE_API_UNSTABLE */ 507#define KERN_COREFILE 50 /* string: corefile format string */ 508#define KERN_COREDUMP 51 /* int: whether to coredump at all */ 509#define KERN_SUGID_COREDUMP 52 /* int: whether to dump SUGID cores */ 510#define KERN_PROCDELAYTERM 53 /* int: set/reset current proc for delayed termination during shutdown */ 511#define KERN_SHREG_PRIVATIZABLE 54 /* int: can shared regions be privatized ? */ 512 /* 55 was KERN_PROC_LOW_PRI_IO... now deprecated */ 513#define KERN_LOW_PRI_WINDOW 56 /* int: set/reset throttle window - milliseconds */ 514#define KERN_LOW_PRI_DELAY 57 /* int: set/reset throttle delay - milliseconds */ 515#define KERN_POSIX 58 /* node: posix tunables */ 516#define KERN_USRSTACK64 59 /* LP64 user stack query */ 517#define KERN_NX_PROTECTION 60 /* int: whether no-execute protection is enabled */ 518#define KERN_TFP 61 /* Task for pid settings */ 519#define KERN_PROCNAME 62 /* setup process program name(2*MAXCOMLEN) */ 520#define KERN_THALTSTACK 63 /* for compat with older x86 and does nothing */ 521#define KERN_SPECULATIVE_READS 64 /* int: whether speculative reads are disabled */ 522#define KERN_OSVERSION 65 /* for build number i.e. 9A127 */ 523#define KERN_SAFEBOOT 66 /* are we booted safe? */ 524#define KERN_LCTX 67 /* node: login context */ 525#define KERN_RAGEVNODE 68 526#define KERN_TTY 69 /* node: tty settings */ 527#define KERN_CHECKOPENEVT 70 /* spi: check the VOPENEVT flag on vnodes at open time */ 528#define KERN_THREADNAME 71 /* set/get thread name */ 529#define KERN_MAXID 72 /* number of valid kern ids */ 530/* 531 * Don't add any more sysctls like this. Instead, use the SYSCTL_*() macros 532 * and OID_AUTO. This will have the added benefit of not having to recompile 533 * sysctl(8) to pick up your changes. 534 */ 535 536#if COUNT_SYSCALLS && defined(KERNEL) 537#define KERN_COUNT_SYSCALLS (KERN_OSTYPE + 1000) /* keep called count for each bsd syscall */ 538#endif 539 540#if defined(__LP64__) 541#define KERN_USRSTACK KERN_USRSTACK64 542#else 543#define KERN_USRSTACK KERN_USRSTACK32 544#endif 545 546 547/* KERN_RAGEVNODE types */ 548#define KERN_RAGE_PROC 1 549#define KERN_RAGE_THREAD 2 550#define KERN_UNRAGE_PROC 3 551#define KERN_UNRAGE_THREAD 4 552 553/* KERN_OPENEVT types */ 554#define KERN_OPENEVT_PROC 1 555#define KERN_UNOPENEVT_PROC 2 556 557/* KERN_TFP types */ 558#define KERN_TFP_POLICY 1 559 560/* KERN_TFP_POLICY values . All policies allow task port for self */ 561#define KERN_TFP_POLICY_DENY 0 /* Deny Mode: None allowed except privileged */ 562#define KERN_TFP_POLICY_DEFAULT 2 /* Default Mode: related ones allowed and upcall authentication */ 563 564/* KERN_KDEBUG types */ 565#define KERN_KDEFLAGS 1 566#define KERN_KDDFLAGS 2 567#define KERN_KDENABLE 3 568#define KERN_KDSETBUF 4 569#define KERN_KDGETBUF 5 570#define KERN_KDSETUP 6 571#define KERN_KDREMOVE 7 572#define KERN_KDSETREG 8 573#define KERN_KDGETREG 9 574#define KERN_KDREADTR 10 575#define KERN_KDPIDTR 11 576#define KERN_KDTHRMAP 12 577/* Don't use 13 as it is overloaded with KERN_VNODE */ 578#define KERN_KDPIDEX 14 579#define KERN_KDSETRTCDEC 15 580#define KERN_KDGETENTROPY 16 /* Obsolescent */ 581#define KERN_KDWRITETR 17 582#define KERN_KDWRITEMAP 18 583#define KERN_KDENABLE_BG_TRACE 19 584#define KERN_KDDISABLE_BG_TRACE 20 585#define KERN_KDREADCURTHRMAP 21 586#define KERN_KDSET_TYPEFILTER 22 587#define KERN_KDBUFWAIT 23 588#define KERN_KDCPUMAP 24 589 590#define CTL_KERN_NAMES { \ 591 { 0, 0 }, \ 592 { "ostype", CTLTYPE_STRING }, \ 593 { "osrelease", CTLTYPE_STRING }, \ 594 { "osrevision", CTLTYPE_INT }, \ 595 { "version", CTLTYPE_STRING }, \ 596 { "maxvnodes", CTLTYPE_INT }, \ 597 { "maxproc", CTLTYPE_INT }, \ 598 { "maxfiles", CTLTYPE_INT }, \ 599 { "argmax", CTLTYPE_INT }, \ 600 { "securelevel", CTLTYPE_INT }, \ 601 { "hostname", CTLTYPE_STRING }, \ 602 { "hostid", CTLTYPE_INT }, \ 603 { "clockrate", CTLTYPE_STRUCT }, \ 604 { "vnode", CTLTYPE_STRUCT }, \ 605 { "proc", CTLTYPE_STRUCT }, \ 606 { "file", CTLTYPE_STRUCT }, \ 607 { "profiling", CTLTYPE_NODE }, \ 608 { "posix1version", CTLTYPE_INT }, \ 609 { "ngroups", CTLTYPE_INT }, \ 610 { "job_control", CTLTYPE_INT }, \ 611 { "saved_ids", CTLTYPE_INT }, \ 612 { "boottime", CTLTYPE_STRUCT }, \ 613 { "nisdomainname", CTLTYPE_STRING }, \ 614 { "maxpartitions", CTLTYPE_INT }, \ 615 { "kdebug", CTLTYPE_INT }, \ 616 { "update", CTLTYPE_INT }, \ 617 { "osreldate", CTLTYPE_INT }, \ 618 { "ntp_pll", CTLTYPE_NODE }, \ 619 { "bootfile", CTLTYPE_STRING }, \ 620 { "maxfilesperproc", CTLTYPE_INT }, \ 621 { "maxprocperuid", CTLTYPE_INT }, \ 622 { "dumpdev", CTLTYPE_STRUCT }, /* we lie; don't print as int */ \ 623 { "ipc", CTLTYPE_NODE }, \ 624 { "dummy", CTLTYPE_INT }, \ 625 { "dummy", CTLTYPE_INT }, \ 626 { "usrstack", CTLTYPE_INT }, \ 627 { "logsigexit", CTLTYPE_INT }, \ 628 { "symfile",CTLTYPE_STRING },\ 629 { "procargs",CTLTYPE_STRUCT },\ 630 { "dummy", CTLTYPE_INT }, /* deprecated pcsamples */ \ 631 { "netboot", CTLTYPE_INT }, \ 632 { "dummy", CTLTYPE_INT }, /* deprecated: panicinfo */ \ 633 { "sysv", CTLTYPE_NODE }, \ 634 { "dummy", CTLTYPE_INT }, \ 635 { "dummy", CTLTYPE_INT }, \ 636 { "exec", CTLTYPE_NODE }, \ 637 { "aiomax", CTLTYPE_INT }, \ 638 { "aioprocmax", CTLTYPE_INT }, \ 639 { "aiothreads", CTLTYPE_INT }, \ 640 { "procargs2",CTLTYPE_STRUCT }, \ 641 { "corefile",CTLTYPE_STRING }, \ 642 { "coredump", CTLTYPE_INT }, \ 643 { "sugid_coredump", CTLTYPE_INT }, \ 644 { "delayterm", CTLTYPE_INT }, \ 645 { "shreg_private", CTLTYPE_INT }, \ 646 { "proc_low_pri_io", CTLTYPE_INT }, \ 647 { "low_pri_window", CTLTYPE_INT }, \ 648 { "low_pri_delay", CTLTYPE_INT }, \ 649 { "posix", CTLTYPE_NODE }, \ 650 { "usrstack64", CTLTYPE_QUAD }, \ 651 { "nx", CTLTYPE_INT }, \ 652 { "tfp", CTLTYPE_NODE }, \ 653 { "procname", CTLTYPE_STRING }, \ 654 { "threadsigaltstack", CTLTYPE_INT }, \ 655 { "speculative_reads_disabled", CTLTYPE_INT }, \ 656 { "osversion", CTLTYPE_STRING }, \ 657 { "safeboot", CTLTYPE_INT }, \ 658 { "lctx", CTLTYPE_NODE }, \ 659 { "rage_vnode", CTLTYPE_INT }, \ 660 { "tty", CTLTYPE_NODE }, \ 661 { "check_openevt", CTLTYPE_INT }, \ 662 { "thread_name", CTLTYPE_STRING } \ 663} 664 665/* 666 * CTL_VFS identifiers 667 */ 668#define CTL_VFS_NAMES { \ 669 { "vfsconf", CTLTYPE_STRUCT } \ 670} 671 672/* 673 * KERN_PROC subtypes 674 */ 675#define KERN_PROC_ALL 0 /* everything */ 676#define KERN_PROC_PID 1 /* by process id */ 677#define KERN_PROC_PGRP 2 /* by process group id */ 678#define KERN_PROC_SESSION 3 /* by session of pid */ 679#define KERN_PROC_TTY 4 /* by controlling tty */ 680#define KERN_PROC_UID 5 /* by effective uid */ 681#define KERN_PROC_RUID 6 /* by real uid */ 682#define KERN_PROC_LCID 7 /* by login context id */ 683 684/* 685 * KERN_LCTX subtypes 686 */ 687#define KERN_LCTX_ALL 0 /* everything */ 688#define KERN_LCTX_LCID 1 /* by login context id */ 689 690 691#if defined(XNU_KERNEL_PRIVATE) || !defined(KERNEL) 692/* 693 * KERN_PROC subtype ops return arrays of augmented proc structures: 694 */ 695 696struct _pcred { 697 char pc_lock[72]; /* opaque content */ 698 struct ucred *pc_ucred; /* Current credentials. */ 699 uid_t p_ruid; /* Real user id. */ 700 uid_t p_svuid; /* Saved effective user id. */ 701 gid_t p_rgid; /* Real group id. */ 702 gid_t p_svgid; /* Saved effective group id. */ 703 int p_refcnt; /* Number of references. */ 704}; 705 706struct _ucred { 707 int32_t cr_ref; /* reference count */ 708 uid_t cr_uid; /* effective user id */ 709 short cr_ngroups; /* number of groups */ 710 gid_t cr_groups[NGROUPS]; /* groups */ 711}; 712 713struct kinfo_proc { 714 struct extern_proc kp_proc; /* proc structure */ 715 struct eproc { 716 struct proc *e_paddr; /* address of proc */ 717 struct session *e_sess; /* session pointer */ 718 struct _pcred e_pcred; /* process credentials */ 719 struct _ucred e_ucred; /* current credentials */ 720 struct vmspace e_vm; /* address space */ 721 pid_t e_ppid; /* parent process id */ 722 pid_t e_pgid; /* process group id */ 723 short e_jobc; /* job control counter */ 724 dev_t e_tdev; /* controlling tty dev */ 725 pid_t e_tpgid; /* tty process group id */ 726 struct session *e_tsess; /* tty session pointer */ 727#define WMESGLEN 7 728 char e_wmesg[WMESGLEN+1]; /* wchan message */ 729 segsz_t e_xsize; /* text size */ 730 short e_xrssize; /* text rss */ 731 short e_xccount; /* text references */ 732 short e_xswrss; 733 int32_t e_flag; 734#define EPROC_CTTY 0x01 /* controlling tty vnode active */ 735#define EPROC_SLEADER 0x02 /* session leader */ 736#define COMAPT_MAXLOGNAME 12 737 char e_login[COMAPT_MAXLOGNAME]; /* short setlogin() name */ 738#if CONFIG_LCTX 739 pid_t e_lcid; 740 int32_t e_spare[3]; 741#else 742 int32_t e_spare[4]; 743#endif 744 } kp_eproc; 745}; 746 747struct kinfo_lctx { 748 pid_t id; /* Login Context ID */ 749 int mc; /* Member Count */ 750}; 751 752#endif /* defined(XNU_KERNEL_PRIVATE) || !defined(KERNEL) */ 753 754#ifdef BSD_KERNEL_PRIVATE 755#include <sys/proc_internal.h> 756 757/* LP64 version of _pcred. all pointers 758 * grow when we're dealing with a 64-bit process. 759 * WARNING - keep in sync with _pcred 760 */ 761 762struct user32_pcred { 763 char pc_lock[72]; /* opaque content */ 764 user32_addr_t pc_ucred; /* Current credentials. */ 765 uid_t p_ruid; /* Real user id. */ 766 uid_t p_svuid; /* Saved effective user id. */ 767 gid_t p_rgid; /* Real group id. */ 768 gid_t p_svgid; /* Saved effective group id. */ 769 int p_refcnt; /* Number of references. */ 770}; 771struct user64_pcred { 772 char pc_lock[72]; /* opaque content */ 773 user64_addr_t pc_ucred; /* Current credentials. */ 774 uid_t p_ruid; /* Real user id. */ 775 uid_t p_svuid; /* Saved effective user id. */ 776 gid_t p_rgid; /* Real group id. */ 777 gid_t p_svgid; /* Saved effective group id. */ 778 int p_refcnt; /* Number of references. */ 779}; 780 781/* LP64 version of kinfo_proc. all pointers 782 * grow when we're dealing with a 64-bit process. 783 * WARNING - keep in sync with kinfo_proc 784 */ 785struct user32_kinfo_proc { 786 struct user32_extern_proc kp_proc; /* proc structure */ 787 struct user32_eproc { 788 user32_addr_t e_paddr; /* address of proc */ 789 user32_addr_t e_sess; /* session pointer */ 790 struct user32_pcred e_pcred; /* process credentials */ 791 struct _ucred e_ucred; /* current credentials */ 792 struct user32_vmspace e_vm; /* address space */ 793 pid_t e_ppid; /* parent process id */ 794 pid_t e_pgid; /* process group id */ 795 short e_jobc; /* job control counter */ 796 dev_t e_tdev; /* controlling tty dev */ 797 pid_t e_tpgid; /* tty process group id */ 798 user32_addr_t e_tsess; /* tty session pointer */ 799 char e_wmesg[WMESGLEN+1]; /* wchan message */ 800 segsz_t e_xsize; /* text size */ 801 short e_xrssize; /* text rss */ 802 short e_xccount; /* text references */ 803 short e_xswrss; 804 int32_t e_flag; 805 char e_login[COMAPT_MAXLOGNAME]; /* short setlogin() name */ 806#if CONFIG_LCTX 807 pid_t e_lcid; 808 int32_t e_spare[3]; 809#else 810 int32_t e_spare[4]; 811#endif 812 } kp_eproc; 813}; 814struct user64_kinfo_proc { 815 struct user64_extern_proc kp_proc; /* proc structure */ 816 struct user64_eproc { 817 user_addr_t e_paddr; /* address of proc */ 818 user_addr_t e_sess; /* session pointer */ 819 struct user64_pcred e_pcred; /* process credentials */ 820 struct _ucred e_ucred; /* current credentials */ 821 struct user_vmspace e_vm; /* address space */ 822 pid_t e_ppid; /* parent process id */ 823 pid_t e_pgid; /* process group id */ 824 short e_jobc; /* job control counter */ 825 dev_t e_tdev; /* controlling tty dev */ 826 pid_t e_tpgid; /* tty process group id */ 827 user64_addr_t e_tsess __attribute((aligned(8))); /* tty session pointer */ 828 char e_wmesg[WMESGLEN+1]; /* wchan message */ 829 segsz_t e_xsize; /* text size */ 830 short e_xrssize; /* text rss */ 831 short e_xccount; /* text references */ 832 short e_xswrss; 833 int32_t e_flag; 834 char e_login[COMAPT_MAXLOGNAME]; /* short setlogin() name */ 835#if CONFIG_LCTX 836 pid_t e_lcid; 837 int32_t e_spare[3]; 838#else 839 int32_t e_spare[4]; 840#endif 841 } kp_eproc; 842}; 843 844#endif /* BSD_KERNEL_PRIVATE */ 845 846/* 847 * KERN_IPC identifiers 848 */ 849#define KIPC_MAXSOCKBUF 1 /* int: max size of a socket buffer */ 850#define KIPC_SOCKBUF_WASTE 2 /* int: wastage factor in sockbuf */ 851#define KIPC_SOMAXCONN 3 /* int: max length of connection q */ 852#define KIPC_MAX_LINKHDR 4 /* int: max length of link header */ 853#define KIPC_MAX_PROTOHDR 5 /* int: max length of network header */ 854#define KIPC_MAX_HDR 6 /* int: max total length of headers */ 855#define KIPC_MAX_DATALEN 7 /* int: max length of data? */ 856#define KIPC_MBSTAT 8 /* struct: mbuf usage statistics */ 857#define KIPC_NMBCLUSTERS 9 /* int: maximum mbuf clusters */ 858#define KIPC_SOQLIMITCOMPAT 10 /* int: socket queue limit */ 859 860/* 861 * CTL_VM identifiers 862 */ 863#define VM_METER 1 /* struct vmmeter */ 864#define VM_LOADAVG 2 /* struct loadavg */ 865/* 866 * Note: "3" was skipped sometime ago and should probably remain unused 867 * to avoid any new entry from being accepted by older kernels... 868 */ 869#define VM_MACHFACTOR 4 /* struct loadavg with mach factor*/ 870#define VM_SWAPUSAGE 5 /* total swap usage */ 871#define VM_MAXID 6 /* number of valid vm ids */ 872 873#define CTL_VM_NAMES { \ 874 { 0, 0 }, \ 875 { "vmmeter", CTLTYPE_STRUCT }, \ 876 { "loadavg", CTLTYPE_STRUCT }, \ 877 { 0, 0 }, /* placeholder for "3" (see comment above) */ \ 878 { "dummy", CTLTYPE_INT }, \ 879 { "swapusage", CTLTYPE_STRUCT } \ 880} 881 882struct xsw_usage { 883 u_int64_t xsu_total; 884 u_int64_t xsu_avail; 885 u_int64_t xsu_used; 886 u_int32_t xsu_pagesize; 887 boolean_t xsu_encrypted; 888}; 889 890#ifdef __APPLE_API_PRIVATE 891/* Load average structure. Use of fixpt_t assume <sys/types.h> in scope. */ 892/* XXX perhaps we should protect fixpt_t, and define it here (or discard it) */ 893struct loadavg { 894 fixpt_t ldavg[3]; 895 long fscale; 896}; 897extern struct loadavg averunnable; 898#define LSCALE 1000 /* scaling for "fixed point" arithmetic */ 899 900#ifdef BSD_KERNEL_PRIVATE 901 902struct user32_loadavg { 903 fixpt_t ldavg[3]; 904 user32_long_t fscale; 905}; 906 907struct user64_loadavg { 908 fixpt_t ldavg[3]; 909 user64_long_t fscale; 910}; 911 912#endif /* BSD_KERNEL_PRIVATE */ 913#endif /* __APPLE_API_PRIVATE */ 914 915 916/* 917 * CTL_HW identifiers 918 */ 919#define HW_MACHINE 1 /* string: machine class */ 920#define HW_MODEL 2 /* string: specific machine model */ 921#define HW_NCPU 3 /* int: number of cpus */ 922#define HW_BYTEORDER 4 /* int: machine byte order */ 923#define HW_PHYSMEM 5 /* int: total memory */ 924#define HW_USERMEM 6 /* int: non-kernel memory */ 925#define HW_PAGESIZE 7 /* int: software page size */ 926#define HW_DISKNAMES 8 /* strings: disk drive names */ 927#define HW_DISKSTATS 9 /* struct: diskstats[] */ 928#define HW_EPOCH 10 /* int: 0 for Legacy, else NewWorld */ 929#define HW_FLOATINGPT 11 /* int: has HW floating point? */ 930#define HW_MACHINE_ARCH 12 /* string: machine architecture */ 931#define HW_VECTORUNIT 13 /* int: has HW vector unit? */ 932#define HW_BUS_FREQ 14 /* int: Bus Frequency */ 933#define HW_CPU_FREQ 15 /* int: CPU Frequency */ 934#define HW_CACHELINE 16 /* int: Cache Line Size in Bytes */ 935#define HW_L1ICACHESIZE 17 /* int: L1 I Cache Size in Bytes */ 936#define HW_L1DCACHESIZE 18 /* int: L1 D Cache Size in Bytes */ 937#define HW_L2SETTINGS 19 /* int: L2 Cache Settings */ 938#define HW_L2CACHESIZE 20 /* int: L2 Cache Size in Bytes */ 939#define HW_L3SETTINGS 21 /* int: L3 Cache Settings */ 940#define HW_L3CACHESIZE 22 /* int: L3 Cache Size in Bytes */ 941#define HW_TB_FREQ 23 /* int: Bus Frequency */ 942#define HW_MEMSIZE 24 /* uint64_t: physical ram size */ 943#define HW_AVAILCPU 25 /* int: number of available CPUs */ 944#define HW_MAXID 26 /* number of valid hw ids */ 945 946#define CTL_HW_NAMES { \ 947 { 0, 0 }, \ 948 { "machine", CTLTYPE_STRING }, \ 949 { "model", CTLTYPE_STRING }, \ 950 { "ncpu", CTLTYPE_INT }, \ 951 { "byteorder", CTLTYPE_INT }, \ 952 { "physmem", CTLTYPE_INT }, \ 953 { "usermem", CTLTYPE_INT }, \ 954 { "pagesize", CTLTYPE_INT }, \ 955 { "disknames", CTLTYPE_STRUCT }, \ 956 { "diskstats", CTLTYPE_STRUCT }, \ 957 { "epoch", CTLTYPE_INT }, \ 958 { "floatingpoint", CTLTYPE_INT }, \ 959 { "machinearch", CTLTYPE_STRING }, \ 960 { "vectorunit", CTLTYPE_INT }, \ 961 { "busfrequency", CTLTYPE_INT }, \ 962 { "cpufrequency", CTLTYPE_INT }, \ 963 { "cachelinesize", CTLTYPE_INT }, \ 964 { "l1icachesize", CTLTYPE_INT }, \ 965 { "l1dcachesize", CTLTYPE_INT }, \ 966 { "l2settings", CTLTYPE_INT }, \ 967 { "l2cachesize", CTLTYPE_INT }, \ 968 { "l3settings", CTLTYPE_INT }, \ 969 { "l3cachesize", CTLTYPE_INT }, \ 970 { "tbfrequency", CTLTYPE_INT }, \ 971 { "memsize", CTLTYPE_QUAD }, \ 972 { "availcpu", CTLTYPE_INT } \ 973} 974 975/* 976 * XXX This information should be moved to the man page. 977 * 978 * These are the support HW selectors for sysctlbyname. Parameters that are byte counts or frequencies are 64 bit numbers. 979 * All other parameters are 32 bit numbers. 980 * 981 * hw.memsize - The number of bytes of physical memory in the system. 982 * 983 * hw.ncpu - The maximum number of processors that could be available this boot. 984 * Use this value for sizing of static per processor arrays; i.e. processor load statistics. 985 * 986 * hw.activecpu - The number of processors currently available for executing threads. 987 * Use this number to determine the number threads to create in SMP aware applications. 988 * This number can change when power management modes are changed. 989 * 990 * hw.physicalcpu - The number of physical processors available in the current power management mode. 991 * hw.physicalcpu_max - The maximum number of physical processors that could be available this boot 992 * 993 * hw.logicalcpu - The number of logical processors available in the current power management mode. 994 * hw.logicalcpu_max - The maximum number of logical processors that could be available this boot 995 * 996 * hw.tbfrequency - This gives the time base frequency used by the OS and is the basis of all timing services. 997 * In general is is better to use mach's or higher level timing services, but this value 998 * is needed to convert the PPC Time Base registers to real time. 999 * 1000 * hw.cpufrequency - These values provide the current, min and max cpu frequency. The min and max are for 1001 * hw.cpufrequency_max - all power management modes. The current frequency is the max frequency in the current mode. 1002 * hw.cpufrequency_min - All frequencies are in Hz. 1003 * 1004 * hw.busfrequency - These values provide the current, min and max bus frequency. The min and max are for 1005 * hw.busfrequency_max - all power management modes. The current frequency is the max frequency in the current mode. 1006 * hw.busfrequency_min - All frequencies are in Hz. 1007 * 1008 * hw.cputype - These values provide the mach-o cpu type and subtype. A complete list is in <mach/machine.h> 1009 * hw.cpusubtype - These values should be used to determine what processor family the running cpu is from so that 1010 * the best binary can be chosen, or the best dynamic code generated. They should not be used 1011 * to determine if a given processor feature is available. 1012 * hw.cputhreadtype - This value will be present if the processor supports threads. Like hw.cpusubtype this selector 1013 * should not be used to infer features, and only used to name the processors thread architecture. 1014 * The values are defined in <mach/machine.h> 1015 * 1016 * hw.byteorder - Gives the byte order of the processor. 4321 for big endian, 1234 for little. 1017 * 1018 * hw.pagesize - Gives the size in bytes of the pages used by the processor and VM system. 1019 * 1020 * hw.cachelinesize - Gives the size in bytes of the processor's cache lines. 1021 * This value should be use to control the strides of loops that use cache control instructions 1022 * like dcbz, dcbt or dcbst. 1023 * 1024 * hw.l1dcachesize - These values provide the size in bytes of the L1, L2 and L3 caches. If a cache is not present 1025 * hw.l1icachesize - then the selector will return and error. 1026 * hw.l2cachesize - 1027 * hw.l3cachesize - 1028 * 1029 * hw.packages - Gives the number of processor packages. 1030 * 1031 * These are the selectors for optional processor features for specific processors. Selectors that return errors are not support 1032 * on the system. Supported features will return 1 if they are recommended or 0 if they are supported but are not expected to help . 1033 * performance. Future versions of these selectors may return larger values as necessary so it is best to test for non zero. 1034 * 1035 * For PowerPC: 1036 * 1037 * hw.optional.floatingpoint - Floating Point Instructions 1038 * hw.optional.altivec - AltiVec Instructions 1039 * hw.optional.graphicsops - Graphics Operations 1040 * hw.optional.64bitops - 64-bit Instructions 1041 * hw.optional.fsqrt - HW Floating Point Square Root Instruction 1042 * hw.optional.stfiwx - Store Floating Point as Integer Word Indexed Instructions 1043 * hw.optional.dcba - Data Cache Block Allocate Instruction 1044 * hw.optional.datastreams - Data Streams Instructions 1045 * hw.optional.dcbtstreams - Data Cache Block Touch Steams Instruction Form 1046 * 1047 * For x86 Architecture: 1048 * 1049 * hw.optional.floatingpoint - Floating Point Instructions 1050 * hw.optional.mmx - Original MMX vector instructions 1051 * hw.optional.sse - Streaming SIMD Extensions 1052 * hw.optional.sse2 - Streaming SIMD Extensions 2 1053 * hw.optional.sse3 - Streaming SIMD Extensions 3 1054 * hw.optional.supplementalsse3 - Supplemental Streaming SIMD Extensions 3 1055 * hw.optional.x86_64 - 64-bit support 1056 */ 1057 1058 1059/* 1060 * CTL_USER definitions 1061 */ 1062#define USER_CS_PATH 1 /* string: _CS_PATH */ 1063#define USER_BC_BASE_MAX 2 /* int: BC_BASE_MAX */ 1064#define USER_BC_DIM_MAX 3 /* int: BC_DIM_MAX */ 1065#define USER_BC_SCALE_MAX 4 /* int: BC_SCALE_MAX */ 1066#define USER_BC_STRING_MAX 5 /* int: BC_STRING_MAX */ 1067#define USER_COLL_WEIGHTS_MAX 6 /* int: COLL_WEIGHTS_MAX */ 1068#define USER_EXPR_NEST_MAX 7 /* int: EXPR_NEST_MAX */ 1069#define USER_LINE_MAX 8 /* int: LINE_MAX */ 1070#define USER_RE_DUP_MAX 9 /* int: RE_DUP_MAX */ 1071#define USER_POSIX2_VERSION 10 /* int: POSIX2_VERSION */ 1072#define USER_POSIX2_C_BIND 11 /* int: POSIX2_C_BIND */ 1073#define USER_POSIX2_C_DEV 12 /* int: POSIX2_C_DEV */ 1074#define USER_POSIX2_CHAR_TERM 13 /* int: POSIX2_CHAR_TERM */ 1075#define USER_POSIX2_FORT_DEV 14 /* int: POSIX2_FORT_DEV */ 1076#define USER_POSIX2_FORT_RUN 15 /* int: POSIX2_FORT_RUN */ 1077#define USER_POSIX2_LOCALEDEF 16 /* int: POSIX2_LOCALEDEF */ 1078#define USER_POSIX2_SW_DEV 17 /* int: POSIX2_SW_DEV */ 1079#define USER_POSIX2_UPE 18 /* int: POSIX2_UPE */ 1080#define USER_STREAM_MAX 19 /* int: POSIX2_STREAM_MAX */ 1081#define USER_TZNAME_MAX 20 /* int: POSIX2_TZNAME_MAX */ 1082#define USER_MAXID 21 /* number of valid user ids */ 1083 1084#define CTL_USER_NAMES { \ 1085 { 0, 0 }, \ 1086 { "cs_path", CTLTYPE_STRING }, \ 1087 { "bc_base_max", CTLTYPE_INT }, \ 1088 { "bc_dim_max", CTLTYPE_INT }, \ 1089 { "bc_scale_max", CTLTYPE_INT }, \ 1090 { "bc_string_max", CTLTYPE_INT }, \ 1091 { "coll_weights_max", CTLTYPE_INT }, \ 1092 { "expr_nest_max", CTLTYPE_INT }, \ 1093 { "line_max", CTLTYPE_INT }, \ 1094 { "re_dup_max", CTLTYPE_INT }, \ 1095 { "posix2_version", CTLTYPE_INT }, \ 1096 { "posix2_c_bind", CTLTYPE_INT }, \ 1097 { "posix2_c_dev", CTLTYPE_INT }, \ 1098 { "posix2_char_term", CTLTYPE_INT }, \ 1099 { "posix2_fort_dev", CTLTYPE_INT }, \ 1100 { "posix2_fort_run", CTLTYPE_INT }, \ 1101 { "posix2_localedef", CTLTYPE_INT }, \ 1102 { "posix2_sw_dev", CTLTYPE_INT }, \ 1103 { "posix2_upe", CTLTYPE_INT }, \ 1104 { "stream_max", CTLTYPE_INT }, \ 1105 { "tzname_max", CTLTYPE_INT } \ 1106} 1107 1108 1109 1110/* 1111 * CTL_DEBUG definitions 1112 * 1113 * Second level identifier specifies which debug variable. 1114 * Third level identifier specifies which stucture component. 1115 */ 1116#define CTL_DEBUG_NAME 0 /* string: variable name */ 1117#define CTL_DEBUG_VALUE 1 /* int: variable value */ 1118#define CTL_DEBUG_MAXID 20 1119 1120 1121#if (CTL_MAXID != 9) || (KERN_MAXID != 72) || (VM_MAXID != 6) || (HW_MAXID != 26) || (USER_MAXID != 21) || (CTL_DEBUG_MAXID != 20) 1122#error Use the SYSCTL_*() macros and OID_AUTO instead! 1123#endif 1124 1125 1126#ifdef KERNEL 1127 1128#ifdef BSD_KERNEL_PRIVATE 1129extern char machine[]; 1130extern char osrelease[]; 1131extern char ostype[]; 1132extern char osversion[]; 1133 1134struct linker_set; 1135 1136void sysctl_register_set(const char *set); 1137void sysctl_unregister_set(const char *set); 1138void sysctl_mib_init(void); 1139 1140int sysctl_int(user_addr_t, size_t *, user_addr_t, size_t, int *); 1141int sysctl_quad(user_addr_t, size_t *, user_addr_t, size_t, quad_t *); 1142 1143void sysctl_register_all(void); 1144 1145#endif /* BSD_KERNEL_PRIVATE */ 1146#else /* !KERNEL */ 1147 1148__BEGIN_DECLS 1149int sysctl(int *, u_int, void *, size_t *, void *, size_t); 1150int sysctlbyname(const char *, void *, size_t *, void *, size_t); 1151int sysctlnametomib(const char *, int *, size_t *); 1152__END_DECLS 1153 1154#endif /* KERNEL */ 1155 1156 1157#endif /* SYSCTL_DEF_ENABLED */ 1158 1159 1160#endif /* !_SYS_SYSCTL_H_ */ 1161