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#include <libkern/sysctl.h> 87#endif 88#include <sys/proc.h> 89#include <sys/vm.h> 90 91#ifdef XNU_KERNEL_PRIVATE 92#include <sys/linker_set.h> 93#endif 94 95/* 96 * Definitions for sysctl call. The sysctl call uses a hierarchical name 97 * for objects that can be examined or modified. The name is expressed as 98 * a sequence of integers. Like a file path name, the meaning of each 99 * component depends on its place in the hierarchy. The top-level and kern 100 * identifiers are defined here, and other identifiers are defined in the 101 * respective subsystem header files. 102 */ 103 104#define CTL_MAXNAME 12 /* largest number of components supported */ 105 106/* 107 * Each subsystem defined by sysctl defines a list of variables 108 * for that subsystem. Each name is either a node with further 109 * levels defined below it, or it is a leaf of some particular 110 * type given below. Each sysctl level defines a set of name/type 111 * pairs to be used by sysctl(1) in manipulating the subsystem. 112 * 113 * When declaring new sysctl names, unless your sysctl is callable 114 * from the paging path, please use the CTLFLAG_LOCKED flag in the 115 * type to indicate that all necessary locking will be handled 116 * within the sysctl. 117 * 118 * Any sysctl defined without CTLFLAG_LOCKED is considered legacy 119 * and will be protected by both wiring the user process pages and, 120 * if it is a 32 bit legacy KEXT, by the obsolete kernel funnel. 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/* This constructs a "raw" MIB oid. */ 299#define SYSCTL_OID(parent, nbr, name, kind, a1, a2, handler, fmt, descr) \ 300 struct sysctl_oid sysctl_##parent##_##name = { \ 301 &sysctl_##parent##_children, { 0 }, \ 302 nbr, kind|CTLFLAG_OID2, a1, a2, #name, handler, fmt, descr, SYSCTL_OID_VERSION, 0 }; \ 303 SYSCTL_LINKER_SET_ENTRY(__sysctl_set, sysctl_##parent##_##name) 304 305/* This constructs a node from which other oids can hang. */ 306#define SYSCTL_NODE(parent, nbr, name, access, handler, descr) \ 307 struct sysctl_oid_list sysctl_##parent##_##name##_children; \ 308 SYSCTL_OID(parent, nbr, name, CTLTYPE_NODE|access, \ 309 (void*)&sysctl_##parent##_##name##_children, 0, handler, \ 310 "N", descr); 311 312/* Oid for a string. len can be 0 to indicate '\0' termination. */ 313#define SYSCTL_STRING(parent, nbr, name, access, arg, len, descr) \ 314 SYSCTL_OID(parent, nbr, name, CTLTYPE_STRING|access, \ 315 arg, len, sysctl_handle_string, "A", descr) 316 317#define SYSCTL_COMPAT_INT(parent, nbr, name, access, ptr, val, descr) \ 318 SYSCTL_OID(parent, nbr, name, CTLTYPE_INT|access, \ 319 ptr, val, sysctl_handle_int, "I", descr) 320 321#define SYSCTL_COMPAT_UINT(parent, nbr, name, access, ptr, val, descr) \ 322 SYSCTL_OID(parent, nbr, name, CTLTYPE_INT|access, \ 323 ptr, val, sysctl_handle_int, "IU", descr) 324 325/* Oid for an int. If ptr is NULL, val is returned. */ 326#define SYSCTL_INT(parent, nbr, name, access, ptr, val, descr) \ 327 SYSCTL_OID(parent, nbr, name, CTLTYPE_INT|access, \ 328 ptr, val, sysctl_handle_int, "I", descr); \ 329 typedef char _sysctl_##parent##_##name##_size_check[(__builtin_constant_p(ptr) || sizeof(*(ptr)) == sizeof(int)) ? 0 : -1]; 330 331/* Oid for an unsigned int. If ptr is NULL, val is returned. */ 332#define SYSCTL_UINT(parent, nbr, name, access, ptr, val, descr) \ 333 SYSCTL_OID(parent, nbr, name, CTLTYPE_INT|access, \ 334 ptr, val, sysctl_handle_int, "IU", descr); \ 335 typedef char _sysctl_##parent##_##name##_size_check[(__builtin_constant_p(ptr) || sizeof(*(ptr)) == sizeof(unsigned int)) ? 0 : -1]; 336 337/* Oid for a long. The pointer must be non NULL. */ 338#define SYSCTL_LONG(parent, nbr, name, access, ptr, descr) \ 339 SYSCTL_OID(parent, nbr, name, CTLTYPE_INT|access, \ 340 ptr, 0, sysctl_handle_long, "L", descr); \ 341 typedef char _sysctl_##parent##_##name##_size_check[(__builtin_constant_p(ptr) || sizeof(*(ptr)) == sizeof(long)) ? 0 : -1]; 342 343/* Oid for a quad. The pointer must be non NULL. */ 344#define SYSCTL_QUAD(parent, nbr, name, access, ptr, descr) \ 345 SYSCTL_OID(parent, nbr, name, CTLTYPE_QUAD|access, \ 346 ptr, 0, sysctl_handle_quad, "Q", descr); \ 347 typedef char _sysctl_##parent##_##name##_size_check[(__builtin_constant_p(ptr) || sizeof(*(ptr)) == sizeof(long long)) ? 0 : -1]; 348 349/* Oid for an opaque object. Specified by a pointer and a length. */ 350#define SYSCTL_OPAQUE(parent, nbr, name, access, ptr, len, fmt, descr) \ 351 SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|access, \ 352 ptr, len, sysctl_handle_opaque, fmt, descr) 353 354/* Oid for a struct. Specified by a pointer and a type. */ 355#define SYSCTL_STRUCT(parent, nbr, name, access, ptr, type, descr) \ 356 SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|access, \ 357 ptr, sizeof(struct type), sysctl_handle_opaque, \ 358 "S," #type, descr) 359 360/* Oid for a procedure. Specified by a pointer and an arg. */ 361#define SYSCTL_PROC(parent, nbr, name, access, ptr, arg, handler, fmt, descr) \ 362 SYSCTL_OID(parent, nbr, name, access, \ 363 ptr, arg, handler, fmt, descr) 364 365 366extern struct sysctl_oid_list sysctl__children; 367SYSCTL_DECL(_kern); 368SYSCTL_DECL(_sysctl); 369SYSCTL_DECL(_vm); 370SYSCTL_DECL(_vfs); 371SYSCTL_DECL(_net); 372SYSCTL_DECL(_debug); 373SYSCTL_DECL(_hw); 374SYSCTL_DECL(_machdep); 375SYSCTL_DECL(_user); 376 377#endif /* KERNEL */ 378 379#ifdef XNU_KERNEL_PRIVATE 380#define SYSCTL_DEF_ENABLED 381#else 382#ifndef KERNEL 383#define SYSCTL_DEF_ENABLED 384#endif 385#endif 386 387#ifdef SYSCTL_DEF_ENABLED 388/* 389 * Top-level identifiers 390 */ 391#define CTL_UNSPEC 0 /* unused */ 392#define CTL_KERN 1 /* "high kernel": proc, limits */ 393#define CTL_VM 2 /* virtual memory */ 394#define CTL_VFS 3 /* file system, mount type is next */ 395#define CTL_NET 4 /* network, see socket.h */ 396#define CTL_DEBUG 5 /* debugging parameters */ 397#define CTL_HW 6 /* generic cpu/io */ 398#define CTL_MACHDEP 7 /* machine dependent */ 399#define CTL_USER 8 /* user-level */ 400#define CTL_MAXID 9 /* number of valid top-level ids */ 401 402#define CTL_NAMES { \ 403 { 0, 0 }, \ 404 { "kern", CTLTYPE_NODE }, \ 405 { "vm", CTLTYPE_NODE }, \ 406 { "vfs", CTLTYPE_NODE }, \ 407 { "net", CTLTYPE_NODE }, \ 408 { "debug", CTLTYPE_NODE }, \ 409 { "hw", CTLTYPE_NODE }, \ 410 { "machdep", CTLTYPE_NODE }, \ 411 { "user", CTLTYPE_NODE }, \ 412} 413 414/* 415 * CTL_KERN identifiers 416 */ 417#define KERN_OSTYPE 1 /* string: system version */ 418#define KERN_OSRELEASE 2 /* string: system release */ 419#define KERN_OSREV 3 /* int: system revision */ 420#define KERN_VERSION 4 /* string: compile time info */ 421#define KERN_MAXVNODES 5 /* int: max vnodes */ 422#define KERN_MAXPROC 6 /* int: max processes */ 423#define KERN_MAXFILES 7 /* int: max open files */ 424#define KERN_ARGMAX 8 /* int: max arguments to exec */ 425#define KERN_SECURELVL 9 /* int: system security level */ 426#define KERN_HOSTNAME 10 /* string: hostname */ 427#define KERN_HOSTID 11 /* int: host identifier */ 428#define KERN_CLOCKRATE 12 /* struct: struct clockrate */ 429#define KERN_VNODE 13 /* struct: vnode structures */ 430#define KERN_PROC 14 /* struct: process entries */ 431#define KERN_FILE 15 /* struct: file entries */ 432#define KERN_PROF 16 /* node: kernel profiling info */ 433#define KERN_POSIX1 17 /* int: POSIX.1 version */ 434#define KERN_NGROUPS 18 /* int: # of supplemental group ids */ 435#define KERN_JOB_CONTROL 19 /* int: is job control available */ 436#define KERN_SAVED_IDS 20 /* int: saved set-user/group-ID */ 437#define KERN_BOOTTIME 21 /* struct: time kernel was booted */ 438#define KERN_NISDOMAINNAME 22 /* string: YP domain name */ 439#define KERN_DOMAINNAME KERN_NISDOMAINNAME 440#define KERN_MAXPARTITIONS 23 /* int: number of partitions/disk */ 441#define KERN_KDEBUG 24 /* int: kernel trace points */ 442#define KERN_UPDATEINTERVAL 25 /* int: update process sleep time */ 443#define KERN_OSRELDATE 26 /* int: OS release date */ 444#define KERN_NTP_PLL 27 /* node: NTP PLL control */ 445#define KERN_BOOTFILE 28 /* string: name of booted kernel */ 446#define KERN_MAXFILESPERPROC 29 /* int: max open files per proc */ 447#define KERN_MAXPROCPERUID 30 /* int: max processes per uid */ 448#define KERN_DUMPDEV 31 /* dev_t: device to dump on */ 449#define KERN_IPC 32 /* node: anything related to IPC */ 450#define KERN_DUMMY 33 /* unused */ 451#define KERN_PS_STRINGS 34 /* int: address of PS_STRINGS */ 452#define KERN_USRSTACK32 35 /* int: address of USRSTACK */ 453#define KERN_LOGSIGEXIT 36 /* int: do we log sigexit procs? */ 454#define KERN_SYMFILE 37 /* string: kernel symbol filename */ 455#define KERN_PROCARGS 38 456 /* 39 was KERN_PCSAMPLES... now deprecated */ 457#define KERN_NETBOOT 40 /* int: are we netbooted? 1=yes,0=no */ 458#define KERN_PANICINFO 41 /* node: panic UI information (deprecated) */ 459#define KERN_SYSV 42 /* node: System V IPC information */ 460#define KERN_AFFINITY 43 /* xxx */ 461#define KERN_TRANSLATE 44 /* xxx */ 462#define KERN_CLASSIC KERN_TRANSLATE /* XXX backwards compat */ 463#define KERN_EXEC 45 /* xxx */ 464#define KERN_CLASSICHANDLER KERN_EXEC /* XXX backwards compatibility */ 465#define KERN_AIOMAX 46 /* int: max aio requests */ 466#define KERN_AIOPROCMAX 47 /* int: max aio requests per process */ 467#define KERN_AIOTHREADS 48 /* int: max aio worker threads */ 468#ifdef __APPLE_API_UNSTABLE 469#define KERN_PROCARGS2 49 470#endif /* __APPLE_API_UNSTABLE */ 471#define KERN_COREFILE 50 /* string: corefile format string */ 472#define KERN_COREDUMP 51 /* int: whether to coredump at all */ 473#define KERN_SUGID_COREDUMP 52 /* int: whether to dump SUGID cores */ 474#define KERN_PROCDELAYTERM 53 /* int: set/reset current proc for delayed termination during shutdown */ 475#define KERN_SHREG_PRIVATIZABLE 54 /* int: can shared regions be privatized ? */ 476 /* 55 was KERN_PROC_LOW_PRI_IO... now deprecated */ 477#define KERN_LOW_PRI_WINDOW 56 /* int: set/reset throttle window - milliseconds */ 478#define KERN_LOW_PRI_DELAY 57 /* int: set/reset throttle delay - milliseconds */ 479#define KERN_POSIX 58 /* node: posix tunables */ 480#define KERN_USRSTACK64 59 /* LP64 user stack query */ 481#define KERN_NX_PROTECTION 60 /* int: whether no-execute protection is enabled */ 482#define KERN_TFP 61 /* Task for pid settings */ 483#define KERN_PROCNAME 62 /* setup process program name(2*MAXCOMLEN) */ 484#define KERN_THALTSTACK 63 /* for compat with older x86 and does nothing */ 485#define KERN_SPECULATIVE_READS 64 /* int: whether speculative reads are disabled */ 486#define KERN_OSVERSION 65 /* for build number i.e. 9A127 */ 487#define KERN_SAFEBOOT 66 /* are we booted safe? */ 488#define KERN_LCTX 67 /* node: login context */ 489#define KERN_RAGEVNODE 68 490#define KERN_TTY 69 /* node: tty settings */ 491#define KERN_CHECKOPENEVT 70 /* spi: check the VOPENEVT flag on vnodes at open time */ 492#define KERN_THREADNAME 71 /* set/get thread name */ 493#define KERN_MAXID 72 /* number of valid kern ids */ 494/* 495 * Don't add any more sysctls like this. Instead, use the SYSCTL_*() macros 496 * and OID_AUTO. This will have the added benefit of not having to recompile 497 * sysctl(8) to pick up your changes. 498 */ 499 500#if COUNT_SYSCALLS && defined(KERNEL) 501#define KERN_COUNT_SYSCALLS (KERN_OSTYPE + 1000) /* keep called count for each bsd syscall */ 502#endif 503 504#if defined(__LP64__) 505#define KERN_USRSTACK KERN_USRSTACK64 506#else 507#define KERN_USRSTACK KERN_USRSTACK32 508#endif 509 510 511/* KERN_RAGEVNODE types */ 512#define KERN_RAGE_PROC 1 513#define KERN_RAGE_THREAD 2 514#define KERN_UNRAGE_PROC 3 515#define KERN_UNRAGE_THREAD 4 516 517/* KERN_OPENEVT types */ 518#define KERN_OPENEVT_PROC 1 519#define KERN_UNOPENEVT_PROC 2 520 521/* KERN_TFP types */ 522#define KERN_TFP_POLICY 1 523 524/* KERN_TFP_POLICY values . All policies allow task port for self */ 525#define KERN_TFP_POLICY_DENY 0 /* Deny Mode: None allowed except privileged */ 526#define KERN_TFP_POLICY_DEFAULT 2 /* Default Mode: related ones allowed and upcall authentication */ 527 528/* KERN_KDEBUG types */ 529#define KERN_KDEFLAGS 1 530#define KERN_KDDFLAGS 2 531#define KERN_KDENABLE 3 532#define KERN_KDSETBUF 4 533#define KERN_KDGETBUF 5 534#define KERN_KDSETUP 6 535#define KERN_KDREMOVE 7 536#define KERN_KDSETREG 8 537#define KERN_KDGETREG 9 538#define KERN_KDREADTR 10 539#define KERN_KDPIDTR 11 540#define KERN_KDTHRMAP 12 541/* Don't use 13 as it is overloaded with KERN_VNODE */ 542#define KERN_KDPIDEX 14 543#define KERN_KDSETRTCDEC 15 544#define KERN_KDGETENTROPY 16 545#define KERN_KDWRITETR 17 546#define KERN_KDWRITEMAP 18 547#define KERN_KDENABLE_BG_TRACE 19 548#define KERN_KDDISABLE_BG_TRACE 20 549#define KERN_KDSET_TYPEFILTER 22 550 551/* KERN_PANICINFO types (deprecated) */ 552#define KERN_PANICINFO_MAXSIZE 1 /* quad: panic UI image size limit */ 553#define KERN_PANICINFO_IMAGE 2 /* panic UI in 8-bit kraw format */ 554#define KERN_PANICINFO_TEST 4 /* Allow the panic UI to be tested by root without causing a panic */ 555#define KERN_PANICINFO_NOROOT_TEST 5 /* Allow the noroot UI to be tested by root */ 556 557#define CTL_KERN_NAMES { \ 558 { 0, 0 }, \ 559 { "ostype", CTLTYPE_STRING }, \ 560 { "osrelease", CTLTYPE_STRING }, \ 561 { "osrevision", CTLTYPE_INT }, \ 562 { "version", CTLTYPE_STRING }, \ 563 { "maxvnodes", CTLTYPE_INT }, \ 564 { "maxproc", CTLTYPE_INT }, \ 565 { "maxfiles", CTLTYPE_INT }, \ 566 { "argmax", CTLTYPE_INT }, \ 567 { "securelevel", CTLTYPE_INT }, \ 568 { "hostname", CTLTYPE_STRING }, \ 569 { "hostid", CTLTYPE_INT }, \ 570 { "clockrate", CTLTYPE_STRUCT }, \ 571 { "vnode", CTLTYPE_STRUCT }, \ 572 { "proc", CTLTYPE_STRUCT }, \ 573 { "file", CTLTYPE_STRUCT }, \ 574 { "profiling", CTLTYPE_NODE }, \ 575 { "posix1version", CTLTYPE_INT }, \ 576 { "ngroups", CTLTYPE_INT }, \ 577 { "job_control", CTLTYPE_INT }, \ 578 { "saved_ids", CTLTYPE_INT }, \ 579 { "boottime", CTLTYPE_STRUCT }, \ 580 { "nisdomainname", CTLTYPE_STRING }, \ 581 { "maxpartitions", CTLTYPE_INT }, \ 582 { "kdebug", CTLTYPE_INT }, \ 583 { "update", CTLTYPE_INT }, \ 584 { "osreldate", CTLTYPE_INT }, \ 585 { "ntp_pll", CTLTYPE_NODE }, \ 586 { "bootfile", CTLTYPE_STRING }, \ 587 { "maxfilesperproc", CTLTYPE_INT }, \ 588 { "maxprocperuid", CTLTYPE_INT }, \ 589 { "dumpdev", CTLTYPE_STRUCT }, /* we lie; don't print as int */ \ 590 { "ipc", CTLTYPE_NODE }, \ 591 { "dummy", CTLTYPE_INT }, \ 592 { "dummy", CTLTYPE_INT }, \ 593 { "usrstack", CTLTYPE_INT }, \ 594 { "logsigexit", CTLTYPE_INT }, \ 595 { "symfile",CTLTYPE_STRING },\ 596 { "procargs",CTLTYPE_STRUCT },\ 597 { "dummy", CTLTYPE_INT }, /* deprecated pcsamples */ \ 598 { "netboot", CTLTYPE_INT }, \ 599 { "panicinfo", CTLTYPE_NODE }, /* deprecated: panicinfo */ \ 600 { "sysv", CTLTYPE_NODE }, \ 601 { "dummy", CTLTYPE_INT }, \ 602 { "dummy", CTLTYPE_INT }, \ 603 { "exec", CTLTYPE_NODE }, \ 604 { "aiomax", CTLTYPE_INT }, \ 605 { "aioprocmax", CTLTYPE_INT }, \ 606 { "aiothreads", CTLTYPE_INT }, \ 607 { "procargs2",CTLTYPE_STRUCT }, \ 608 { "corefile",CTLTYPE_STRING }, \ 609 { "coredump", CTLTYPE_INT }, \ 610 { "sugid_coredump", CTLTYPE_INT }, \ 611 { "delayterm", CTLTYPE_INT }, \ 612 { "shreg_private", CTLTYPE_INT }, \ 613 { "proc_low_pri_io", CTLTYPE_INT }, \ 614 { "low_pri_window", CTLTYPE_INT }, \ 615 { "low_pri_delay", CTLTYPE_INT }, \ 616 { "posix", CTLTYPE_NODE }, \ 617 { "usrstack64", CTLTYPE_QUAD }, \ 618 { "nx", CTLTYPE_INT }, \ 619 { "tfp", CTLTYPE_NODE }, \ 620 { "procname", CTLTYPE_STRING }, \ 621 { "threadsigaltstack", CTLTYPE_INT }, \ 622 { "speculative_reads_disabled", CTLTYPE_INT }, \ 623 { "osversion", CTLTYPE_STRING }, \ 624 { "safeboot", CTLTYPE_INT }, \ 625 { "lctx", CTLTYPE_NODE }, \ 626 { "rage_vnode", CTLTYPE_INT }, \ 627 { "tty", CTLTYPE_NODE }, \ 628 { "check_openevt", CTLTYPE_INT }, \ 629 { "thread_name", CTLTYPE_STRING } \ 630} 631 632/* 633 * CTL_VFS identifiers 634 */ 635#define CTL_VFS_NAMES { \ 636 { "vfsconf", CTLTYPE_STRUCT } \ 637} 638 639/* 640 * KERN_PROC subtypes 641 */ 642#define KERN_PROC_ALL 0 /* everything */ 643#define KERN_PROC_PID 1 /* by process id */ 644#define KERN_PROC_PGRP 2 /* by process group id */ 645#define KERN_PROC_SESSION 3 /* by session of pid */ 646#define KERN_PROC_TTY 4 /* by controlling tty */ 647#define KERN_PROC_UID 5 /* by effective uid */ 648#define KERN_PROC_RUID 6 /* by real uid */ 649#define KERN_PROC_LCID 7 /* by login context id */ 650 651/* 652 * KERN_LCTX subtypes 653 */ 654#define KERN_LCTX_ALL 0 /* everything */ 655#define KERN_LCTX_LCID 1 /* by login context id */ 656 657 658#if defined(XNU_KERNEL_PRIVATE) || !defined(KERNEL) 659/* 660 * KERN_PROC subtype ops return arrays of augmented proc structures: 661 */ 662 663struct _pcred { 664 char pc_lock[72]; /* opaque content */ 665 struct ucred *pc_ucred; /* Current credentials. */ 666 uid_t p_ruid; /* Real user id. */ 667 uid_t p_svuid; /* Saved effective user id. */ 668 gid_t p_rgid; /* Real group id. */ 669 gid_t p_svgid; /* Saved effective group id. */ 670 int p_refcnt; /* Number of references. */ 671}; 672 673struct _ucred { 674 int32_t cr_ref; /* reference count */ 675 uid_t cr_uid; /* effective user id */ 676 short cr_ngroups; /* number of groups */ 677 gid_t cr_groups[NGROUPS]; /* groups */ 678}; 679 680struct kinfo_proc { 681 struct extern_proc kp_proc; /* proc structure */ 682 struct eproc { 683 struct proc *e_paddr; /* address of proc */ 684 struct session *e_sess; /* session pointer */ 685 struct _pcred e_pcred; /* process credentials */ 686 struct _ucred e_ucred; /* current credentials */ 687 struct vmspace e_vm; /* address space */ 688 pid_t e_ppid; /* parent process id */ 689 pid_t e_pgid; /* process group id */ 690 short e_jobc; /* job control counter */ 691 dev_t e_tdev; /* controlling tty dev */ 692 pid_t e_tpgid; /* tty process group id */ 693 struct session *e_tsess; /* tty session pointer */ 694#define WMESGLEN 7 695 char e_wmesg[WMESGLEN+1]; /* wchan message */ 696 segsz_t e_xsize; /* text size */ 697 short e_xrssize; /* text rss */ 698 short e_xccount; /* text references */ 699 short e_xswrss; 700 int32_t e_flag; 701#define EPROC_CTTY 0x01 /* controlling tty vnode active */ 702#define EPROC_SLEADER 0x02 /* session leader */ 703#define COMAPT_MAXLOGNAME 12 704 char e_login[COMAPT_MAXLOGNAME]; /* short setlogin() name */ 705#if CONFIG_LCTX 706 pid_t e_lcid; 707 int32_t e_spare[3]; 708#else 709 int32_t e_spare[4]; 710#endif 711 } kp_eproc; 712}; 713 714struct kinfo_lctx { 715 pid_t id; /* Login Context ID */ 716 int mc; /* Member Count */ 717}; 718 719#endif /* defined(XNU_KERNEL_PRIVATE) || !defined(KERNEL) */ 720 721#ifdef BSD_KERNEL_PRIVATE 722#include <sys/proc_internal.h> 723 724/* LP64 version of _pcred. all pointers 725 * grow when we're dealing with a 64-bit process. 726 * WARNING - keep in sync with _pcred 727 */ 728 729struct user32_pcred { 730 char pc_lock[72]; /* opaque content */ 731 user32_addr_t pc_ucred; /* Current credentials. */ 732 uid_t p_ruid; /* Real user id. */ 733 uid_t p_svuid; /* Saved effective user id. */ 734 gid_t p_rgid; /* Real group id. */ 735 gid_t p_svgid; /* Saved effective group id. */ 736 int p_refcnt; /* Number of references. */ 737}; 738struct user64_pcred { 739 char pc_lock[72]; /* opaque content */ 740 user64_addr_t pc_ucred; /* Current credentials. */ 741 uid_t p_ruid; /* Real user id. */ 742 uid_t p_svuid; /* Saved effective user id. */ 743 gid_t p_rgid; /* Real group id. */ 744 gid_t p_svgid; /* Saved effective group id. */ 745 int p_refcnt; /* Number of references. */ 746}; 747 748/* LP64 version of kinfo_proc. all pointers 749 * grow when we're dealing with a 64-bit process. 750 * WARNING - keep in sync with kinfo_proc 751 */ 752struct user32_kinfo_proc { 753 struct user32_extern_proc kp_proc; /* proc structure */ 754 struct user32_eproc { 755 user32_addr_t e_paddr; /* address of proc */ 756 user32_addr_t e_sess; /* session pointer */ 757 struct user32_pcred e_pcred; /* process credentials */ 758 struct _ucred e_ucred; /* current credentials */ 759 struct user32_vmspace e_vm; /* address space */ 760 pid_t e_ppid; /* parent process id */ 761 pid_t e_pgid; /* process group id */ 762 short e_jobc; /* job control counter */ 763 dev_t e_tdev; /* controlling tty dev */ 764 pid_t e_tpgid; /* tty process group id */ 765 user32_addr_t e_tsess; /* tty session pointer */ 766 char e_wmesg[WMESGLEN+1]; /* wchan message */ 767 segsz_t e_xsize; /* text size */ 768 short e_xrssize; /* text rss */ 769 short e_xccount; /* text references */ 770 short e_xswrss; 771 int32_t e_flag; 772 char e_login[COMAPT_MAXLOGNAME]; /* short setlogin() name */ 773#if CONFIG_LCTX 774 pid_t e_lcid; 775 int32_t e_spare[3]; 776#else 777 int32_t e_spare[4]; 778#endif 779 } kp_eproc; 780}; 781struct user64_kinfo_proc { 782 struct user64_extern_proc kp_proc; /* proc structure */ 783 struct user64_eproc { 784 user_addr_t e_paddr; /* address of proc */ 785 user_addr_t e_sess; /* session pointer */ 786 struct user64_pcred e_pcred; /* process credentials */ 787 struct _ucred e_ucred; /* current credentials */ 788 struct user_vmspace e_vm; /* address space */ 789 pid_t e_ppid; /* parent process id */ 790 pid_t e_pgid; /* process group id */ 791 short e_jobc; /* job control counter */ 792 dev_t e_tdev; /* controlling tty dev */ 793 pid_t e_tpgid; /* tty process group id */ 794 user64_addr_t e_tsess __attribute((aligned(8))); /* tty session pointer */ 795 char e_wmesg[WMESGLEN+1]; /* wchan message */ 796 segsz_t e_xsize; /* text size */ 797 short e_xrssize; /* text rss */ 798 short e_xccount; /* text references */ 799 short e_xswrss; 800 int32_t e_flag; 801 char e_login[COMAPT_MAXLOGNAME]; /* short setlogin() name */ 802#if CONFIG_LCTX 803 pid_t e_lcid; 804 int32_t e_spare[3]; 805#else 806 int32_t e_spare[4]; 807#endif 808 } kp_eproc; 809}; 810 811#endif /* BSD_KERNEL_PRIVATE */ 812 813/* 814 * KERN_IPC identifiers 815 */ 816#define KIPC_MAXSOCKBUF 1 /* int: max size of a socket buffer */ 817#define KIPC_SOCKBUF_WASTE 2 /* int: wastage factor in sockbuf */ 818#define KIPC_SOMAXCONN 3 /* int: max length of connection q */ 819#define KIPC_MAX_LINKHDR 4 /* int: max length of link header */ 820#define KIPC_MAX_PROTOHDR 5 /* int: max length of network header */ 821#define KIPC_MAX_HDR 6 /* int: max total length of headers */ 822#define KIPC_MAX_DATALEN 7 /* int: max length of data? */ 823#define KIPC_MBSTAT 8 /* struct: mbuf usage statistics */ 824#define KIPC_NMBCLUSTERS 9 /* int: maximum mbuf clusters */ 825#define KIPC_SOQLIMITCOMPAT 10 /* int: socket queue limit */ 826 827/* 828 * CTL_VM identifiers 829 */ 830#define VM_METER 1 /* struct vmmeter */ 831#define VM_LOADAVG 2 /* struct loadavg */ 832/* 833 * Note: "3" was skipped sometime ago and should probably remain unused 834 * to avoid any new entry from being accepted by older kernels... 835 */ 836#define VM_MACHFACTOR 4 /* struct loadavg with mach factor*/ 837#define VM_SWAPUSAGE 5 /* total swap usage */ 838#define VM_MAXID 6 /* number of valid vm ids */ 839 840#define CTL_VM_NAMES { \ 841 { 0, 0 }, \ 842 { "vmmeter", CTLTYPE_STRUCT }, \ 843 { "loadavg", CTLTYPE_STRUCT }, \ 844 { 0, 0 }, /* placeholder for "3" (see comment above) */ \ 845 { "dummy", CTLTYPE_INT }, \ 846 { "swapusage", CTLTYPE_STRUCT } \ 847} 848 849struct xsw_usage { 850 u_int64_t xsu_total; 851 u_int64_t xsu_avail; 852 u_int64_t xsu_used; 853 u_int32_t xsu_pagesize; 854 boolean_t xsu_encrypted; 855}; 856 857#ifdef __APPLE_API_PRIVATE 858/* Load average structure. Use of fixpt_t assume <sys/types.h> in scope. */ 859/* XXX perhaps we should protect fixpt_t, and define it here (or discard it) */ 860struct loadavg { 861 fixpt_t ldavg[3]; 862 long fscale; 863}; 864extern struct loadavg averunnable; 865#define LSCALE 1000 /* scaling for "fixed point" arithmetic */ 866 867#ifdef BSD_KERNEL_PRIVATE 868 869struct user32_loadavg { 870 fixpt_t ldavg[3]; 871 user32_long_t fscale; 872}; 873 874struct user64_loadavg { 875 fixpt_t ldavg[3]; 876 user64_long_t fscale; 877}; 878 879#endif /* BSD_KERNEL_PRIVATE */ 880#endif /* __APPLE_API_PRIVATE */ 881 882 883/* 884 * CTL_HW identifiers 885 */ 886#define HW_MACHINE 1 /* string: machine class */ 887#define HW_MODEL 2 /* string: specific machine model */ 888#define HW_NCPU 3 /* int: number of cpus */ 889#define HW_BYTEORDER 4 /* int: machine byte order */ 890#define HW_PHYSMEM 5 /* int: total memory */ 891#define HW_USERMEM 6 /* int: non-kernel memory */ 892#define HW_PAGESIZE 7 /* int: software page size */ 893#define HW_DISKNAMES 8 /* strings: disk drive names */ 894#define HW_DISKSTATS 9 /* struct: diskstats[] */ 895#define HW_EPOCH 10 /* int: 0 for Legacy, else NewWorld */ 896#define HW_FLOATINGPT 11 /* int: has HW floating point? */ 897#define HW_MACHINE_ARCH 12 /* string: machine architecture */ 898#define HW_VECTORUNIT 13 /* int: has HW vector unit? */ 899#define HW_BUS_FREQ 14 /* int: Bus Frequency */ 900#define HW_CPU_FREQ 15 /* int: CPU Frequency */ 901#define HW_CACHELINE 16 /* int: Cache Line Size in Bytes */ 902#define HW_L1ICACHESIZE 17 /* int: L1 I Cache Size in Bytes */ 903#define HW_L1DCACHESIZE 18 /* int: L1 D Cache Size in Bytes */ 904#define HW_L2SETTINGS 19 /* int: L2 Cache Settings */ 905#define HW_L2CACHESIZE 20 /* int: L2 Cache Size in Bytes */ 906#define HW_L3SETTINGS 21 /* int: L3 Cache Settings */ 907#define HW_L3CACHESIZE 22 /* int: L3 Cache Size in Bytes */ 908#define HW_TB_FREQ 23 /* int: Bus Frequency */ 909#define HW_MEMSIZE 24 /* uint64_t: physical ram size */ 910#define HW_AVAILCPU 25 /* int: number of available CPUs */ 911#define HW_MAXID 26 /* number of valid hw ids */ 912 913#define CTL_HW_NAMES { \ 914 { 0, 0 }, \ 915 { "machine", CTLTYPE_STRING }, \ 916 { "model", CTLTYPE_STRING }, \ 917 { "ncpu", CTLTYPE_INT }, \ 918 { "byteorder", CTLTYPE_INT }, \ 919 { "physmem", CTLTYPE_INT }, \ 920 { "usermem", CTLTYPE_INT }, \ 921 { "pagesize", CTLTYPE_INT }, \ 922 { "disknames", CTLTYPE_STRUCT }, \ 923 { "diskstats", CTLTYPE_STRUCT }, \ 924 { "epoch", CTLTYPE_INT }, \ 925 { "floatingpoint", CTLTYPE_INT }, \ 926 { "machinearch", CTLTYPE_STRING }, \ 927 { "vectorunit", CTLTYPE_INT }, \ 928 { "busfrequency", CTLTYPE_INT }, \ 929 { "cpufrequency", CTLTYPE_INT }, \ 930 { "cachelinesize", CTLTYPE_INT }, \ 931 { "l1icachesize", CTLTYPE_INT }, \ 932 { "l1dcachesize", CTLTYPE_INT }, \ 933 { "l2settings", CTLTYPE_INT }, \ 934 { "l2cachesize", CTLTYPE_INT }, \ 935 { "l3settings", CTLTYPE_INT }, \ 936 { "l3cachesize", CTLTYPE_INT }, \ 937 { "tbfrequency", CTLTYPE_INT }, \ 938 { "memsize", CTLTYPE_QUAD }, \ 939 { "availcpu", CTLTYPE_INT } \ 940} 941 942/* 943 * XXX This information should be moved to the man page. 944 * 945 * These are the support HW selectors for sysctlbyname. Parameters that are byte counts or frequencies are 64 bit numbers. 946 * All other parameters are 32 bit numbers. 947 * 948 * hw.memsize - The number of bytes of physical memory in the system. 949 * 950 * hw.ncpu - The maximum number of processors that could be available this boot. 951 * Use this value for sizing of static per processor arrays; i.e. processor load statistics. 952 * 953 * hw.activecpu - The number of processors currently available for executing threads. 954 * Use this number to determine the number threads to create in SMP aware applications. 955 * This number can change when power management modes are changed. 956 * 957 * hw.physicalcpu - The number of physical processors available in the current power management mode. 958 * hw.physicalcpu_max - The maximum number of physical processors that could be available this boot 959 * 960 * hw.logicalcpu - The number of logical processors available in the current power management mode. 961 * hw.logicalcpu_max - The maximum number of logical processors that could be available this boot 962 * 963 * hw.tbfrequency - This gives the time base frequency used by the OS and is the basis of all timing services. 964 * In general is is better to use mach's or higher level timing services, but this value 965 * is needed to convert the PPC Time Base registers to real time. 966 * 967 * hw.cpufrequency - These values provide the current, min and max cpu frequency. The min and max are for 968 * hw.cpufrequency_max - all power management modes. The current frequency is the max frequency in the current mode. 969 * hw.cpufrequency_min - All frequencies are in Hz. 970 * 971 * hw.busfrequency - These values provide the current, min and max bus frequency. The min and max are for 972 * hw.busfrequency_max - all power management modes. The current frequency is the max frequency in the current mode. 973 * hw.busfrequency_min - All frequencies are in Hz. 974 * 975 * hw.cputype - These values provide the mach-o cpu type and subtype. A complete list is in <mach/machine.h> 976 * hw.cpusubtype - These values should be used to determine what processor family the running cpu is from so that 977 * the best binary can be chosen, or the best dynamic code generated. They should not be used 978 * to determine if a given processor feature is available. 979 * hw.cputhreadtype - This value will be present if the processor supports threads. Like hw.cpusubtype this selector 980 * should not be used to infer features, and only used to name the processors thread architecture. 981 * The values are defined in <mach/machine.h> 982 * 983 * hw.byteorder - Gives the byte order of the processor. 4321 for big endian, 1234 for little. 984 * 985 * hw.pagesize - Gives the size in bytes of the pages used by the processor and VM system. 986 * 987 * hw.cachelinesize - Gives the size in bytes of the processor's cache lines. 988 * This value should be use to control the strides of loops that use cache control instructions 989 * like dcbz, dcbt or dcbst. 990 * 991 * hw.l1dcachesize - These values provide the size in bytes of the L1, L2 and L3 caches. If a cache is not present 992 * hw.l1icachesize - then the selector will return and error. 993 * hw.l2cachesize - 994 * hw.l3cachesize - 995 * 996 * hw.packages - Gives the number of processor packages. 997 * 998 * These are the selectors for optional processor features for specific processors. Selectors that return errors are not support 999 * on the system. Supported features will return 1 if they are recommended or 0 if they are supported but are not expected to help . 1000 * performance. Future versions of these selectors may return larger values as necessary so it is best to test for non zero. 1001 * 1002 * For PowerPC: 1003 * 1004 * hw.optional.floatingpoint - Floating Point Instructions 1005 * hw.optional.altivec - AltiVec Instructions 1006 * hw.optional.graphicsops - Graphics Operations 1007 * hw.optional.64bitops - 64-bit Instructions 1008 * hw.optional.fsqrt - HW Floating Point Square Root Instruction 1009 * hw.optional.stfiwx - Store Floating Point as Integer Word Indexed Instructions 1010 * hw.optional.dcba - Data Cache Block Allocate Instruction 1011 * hw.optional.datastreams - Data Streams Instructions 1012 * hw.optional.dcbtstreams - Data Cache Block Touch Steams Instruction Form 1013 * 1014 * For x86 Architecture: 1015 * 1016 * hw.optional.floatingpoint - Floating Point Instructions 1017 * hw.optional.mmx - Original MMX vector instructions 1018 * hw.optional.sse - Streaming SIMD Extensions 1019 * hw.optional.sse2 - Streaming SIMD Extensions 2 1020 * hw.optional.sse3 - Streaming SIMD Extensions 3 1021 * hw.optional.supplementalsse3 - Supplemental Streaming SIMD Extensions 3 1022 * hw.optional.x86_64 - 64-bit support 1023 */ 1024 1025 1026/* 1027 * CTL_USER definitions 1028 */ 1029#define USER_CS_PATH 1 /* string: _CS_PATH */ 1030#define USER_BC_BASE_MAX 2 /* int: BC_BASE_MAX */ 1031#define USER_BC_DIM_MAX 3 /* int: BC_DIM_MAX */ 1032#define USER_BC_SCALE_MAX 4 /* int: BC_SCALE_MAX */ 1033#define USER_BC_STRING_MAX 5 /* int: BC_STRING_MAX */ 1034#define USER_COLL_WEIGHTS_MAX 6 /* int: COLL_WEIGHTS_MAX */ 1035#define USER_EXPR_NEST_MAX 7 /* int: EXPR_NEST_MAX */ 1036#define USER_LINE_MAX 8 /* int: LINE_MAX */ 1037#define USER_RE_DUP_MAX 9 /* int: RE_DUP_MAX */ 1038#define USER_POSIX2_VERSION 10 /* int: POSIX2_VERSION */ 1039#define USER_POSIX2_C_BIND 11 /* int: POSIX2_C_BIND */ 1040#define USER_POSIX2_C_DEV 12 /* int: POSIX2_C_DEV */ 1041#define USER_POSIX2_CHAR_TERM 13 /* int: POSIX2_CHAR_TERM */ 1042#define USER_POSIX2_FORT_DEV 14 /* int: POSIX2_FORT_DEV */ 1043#define USER_POSIX2_FORT_RUN 15 /* int: POSIX2_FORT_RUN */ 1044#define USER_POSIX2_LOCALEDEF 16 /* int: POSIX2_LOCALEDEF */ 1045#define USER_POSIX2_SW_DEV 17 /* int: POSIX2_SW_DEV */ 1046#define USER_POSIX2_UPE 18 /* int: POSIX2_UPE */ 1047#define USER_STREAM_MAX 19 /* int: POSIX2_STREAM_MAX */ 1048#define USER_TZNAME_MAX 20 /* int: POSIX2_TZNAME_MAX */ 1049#define USER_MAXID 21 /* number of valid user ids */ 1050 1051#define CTL_USER_NAMES { \ 1052 { 0, 0 }, \ 1053 { "cs_path", CTLTYPE_STRING }, \ 1054 { "bc_base_max", CTLTYPE_INT }, \ 1055 { "bc_dim_max", CTLTYPE_INT }, \ 1056 { "bc_scale_max", CTLTYPE_INT }, \ 1057 { "bc_string_max", CTLTYPE_INT }, \ 1058 { "coll_weights_max", CTLTYPE_INT }, \ 1059 { "expr_nest_max", CTLTYPE_INT }, \ 1060 { "line_max", CTLTYPE_INT }, \ 1061 { "re_dup_max", CTLTYPE_INT }, \ 1062 { "posix2_version", CTLTYPE_INT }, \ 1063 { "posix2_c_bind", CTLTYPE_INT }, \ 1064 { "posix2_c_dev", CTLTYPE_INT }, \ 1065 { "posix2_char_term", CTLTYPE_INT }, \ 1066 { "posix2_fort_dev", CTLTYPE_INT }, \ 1067 { "posix2_fort_run", CTLTYPE_INT }, \ 1068 { "posix2_localedef", CTLTYPE_INT }, \ 1069 { "posix2_sw_dev", CTLTYPE_INT }, \ 1070 { "posix2_upe", CTLTYPE_INT }, \ 1071 { "stream_max", CTLTYPE_INT }, \ 1072 { "tzname_max", CTLTYPE_INT } \ 1073} 1074 1075 1076 1077/* 1078 * CTL_DEBUG definitions 1079 * 1080 * Second level identifier specifies which debug variable. 1081 * Third level identifier specifies which stucture component. 1082 */ 1083#define CTL_DEBUG_NAME 0 /* string: variable name */ 1084#define CTL_DEBUG_VALUE 1 /* int: variable value */ 1085#define CTL_DEBUG_MAXID 20 1086 1087 1088#if (CTL_MAXID != 9) || (KERN_MAXID != 72) || (VM_MAXID != 6) || (HW_MAXID != 26) || (USER_MAXID != 21) || (CTL_DEBUG_MAXID != 20) 1089#error Use the SYSCTL_*() macros and OID_AUTO instead! 1090#endif 1091 1092 1093#ifdef KERNEL 1094#if DEBUG 1095/* 1096 * CTL_DEBUG variables. 1097 * 1098 * These are declared as separate variables so that they can be 1099 * individually initialized at the location of their associated 1100 * variable. The loader prevents multiple use by issuing errors 1101 * if a variable is initialized in more than one place. They are 1102 * aggregated into an array in debug_sysctl(), so that it can 1103 * conveniently locate them when querried. If more debugging 1104 * variables are added, they must also be declared here and also 1105 * entered into the array. 1106 */ 1107struct ctldebug { 1108 char *debugname; /* name of debugging variable */ 1109 int *debugvar; /* pointer to debugging variable */ 1110}; 1111extern struct ctldebug debug0, debug1, debug2, debug3, debug4; 1112extern struct ctldebug debug5, debug6, debug7, debug8, debug9; 1113extern struct ctldebug debug10, debug11, debug12, debug13, debug14; 1114extern struct ctldebug debug15, debug16, debug17, debug18, debug19; 1115#endif /* DEBUG */ 1116 1117#ifdef BSD_KERNEL_PRIVATE 1118extern char machine[]; 1119extern char osrelease[]; 1120extern char ostype[]; 1121extern char osversion[]; 1122 1123struct linker_set; 1124 1125void sysctl_register_set(const char *set); 1126void sysctl_unregister_set(const char *set); 1127void sysctl_mib_init(void) __attribute__((section("__TEXT, initcode"))); 1128int kernel_sysctl(struct proc *p, int *name, u_int namelen, void *old, 1129 size_t *oldlenp, void *newp, size_t newlen); 1130int userland_sysctl(struct proc *p, int *name, u_int namelen, user_addr_t old, 1131 size_t *oldlenp, user_addr_t newp, size_t newlen, 1132 size_t *retval); 1133 1134/* 1135 * Internal sysctl function calling convention: 1136 * 1137 * (*sysctlfn)(name, namelen, oldval, oldlenp, newval, newlen); 1138 * 1139 * The name parameter points at the next component of the name to be 1140 * interpreted. The namelen parameter is the number of integers in 1141 * the name. 1142 */ 1143typedef int (sysctlfn) 1144 (int *, u_int, user_addr_t, size_t *, user_addr_t, size_t, struct proc *); 1145 1146int sysctl_int(user_addr_t, size_t *, user_addr_t, size_t, int *); 1147int sysctl_rdint(user_addr_t, size_t *, user_addr_t, int); 1148int sysctl_quad(user_addr_t, size_t *, user_addr_t, size_t, quad_t *); 1149int sysctl_rdquad(user_addr_t, size_t *, user_addr_t, quad_t); 1150int sysctl_string(user_addr_t, size_t *, user_addr_t, size_t, char *, int); 1151int sysctl_trstring(user_addr_t, size_t *, user_addr_t, size_t, char *, int); 1152int sysctl_rdstring(user_addr_t, size_t *, user_addr_t, char *); 1153int sysctl_rdstruct(user_addr_t, size_t *, user_addr_t, void *, int); 1154 1155/* XXX should be in <sys/sysproto.h>, but not a real system call */ 1156struct sysctl_args; 1157int new_sysctl(struct proc *, struct sysctl_args *); 1158 1159void sysctl_register_all(void); 1160 1161#endif /* BSD_KERNEL_PRIVATE */ 1162#else /* !KERNEL */ 1163 1164__BEGIN_DECLS 1165int sysctl(int *, u_int, void *, size_t *, void *, size_t); 1166int sysctlbyname(const char *, void *, size_t *, void *, size_t); 1167int sysctlnametomib(const char *, int *, size_t *); 1168__END_DECLS 1169 1170#endif /* KERNEL */ 1171 1172 1173#endif /* SYSCTL_DEF_ENABLED */ 1174 1175 1176#endif /* !_SYS_SYSCTL_H_ */ 1177