sysctl.h
1 /* 2 * Copyright (c) 2000-2019 Apple 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 #ifdef XNU_KERNEL_PRIVATE 87 #include <kern/startup.h> 88 #include <libkern/section_keywords.h> 89 #else 90 #include <libkern/sysctl.h> 91 #include <os/base.h> 92 #endif /* XNU_KERNEL_PRIVATE */ 93 #endif /* KERNEL */ 94 95 #include <sys/proc.h> 96 #include <sys/vm.h> 97 98 /* 99 * Definitions for sysctl call. The sysctl call uses a hierarchical name 100 * for objects that can be examined or modified. The name is expressed as 101 * a sequence of integers. Like a file path name, the meaning of each 102 * component depends on its place in the hierarchy. The top-level and kern 103 * identifiers are defined here, and other identifiers are defined in the 104 * respective subsystem header files. 105 */ 106 107 #define CTL_MAXNAME 12 /* largest number of components supported */ 108 109 /* 110 * Each subsystem defined by sysctl defines a list of variables 111 * for that subsystem. Each name is either a node with further 112 * levels defined below it, or it is a leaf of some particular 113 * type given below. Each sysctl level defines a set of name/type 114 * pairs to be used by sysctl(1) in manipulating the subsystem. 115 * 116 * When declaring new sysctl names, use the CTLFLAG_LOCKED flag in the 117 * type to indicate that all necessary locking will be handled 118 * within the sysctl. 119 * 120 * Any sysctl defined without CTLFLAG_LOCKED is considered legacy 121 * and will be protected by a global mutex. 122 * 123 * Note: This is not optimal, so it is best to handle locking 124 * yourself, if you are able to do so. A simple design 125 * pattern for use to avoid in a single function known 126 * to potentially be in the paging path ot doing a DMA 127 * to physical memory in a user space process is: 128 * 129 * lock 130 * perform operation vs. local buffer 131 * unlock 132 * SYSCTL_OUT(rey, local buffer, length) 133 * 134 * ...this assumes you are not using a deep call graph 135 * or are unable to pass a local buffer address as a 136 * parameter into your deep call graph. 137 * 138 * Note that very large user buffers can fail the wire 139 * if to do so would require more physical pages than 140 * are available (the caller will get an ENOMEM error, 141 * see sysctl_mem_hold() for details). 142 */ 143 struct ctlname { 144 char *ctl_name; /* subsystem name */ 145 int ctl_type; /* type of name */ 146 }; 147 148 #define CTLTYPE 0xf /* Mask for the type */ 149 #define CTLTYPE_NODE 1 /* name is a node */ 150 #define CTLTYPE_INT 2 /* name describes an integer */ 151 #define CTLTYPE_STRING 3 /* name describes a string */ 152 #define CTLTYPE_QUAD 4 /* name describes a 64-bit number */ 153 #define CTLTYPE_OPAQUE 5 /* name describes a structure */ 154 #define CTLTYPE_STRUCT CTLTYPE_OPAQUE /* name describes a structure */ 155 156 #define CTLFLAG_RD 0x80000000 /* Allow reads of variable */ 157 #define CTLFLAG_WR 0x40000000 /* Allow writes to the variable */ 158 #define CTLFLAG_RW (CTLFLAG_RD|CTLFLAG_WR) 159 #define CTLFLAG_NOLOCK 0x20000000 /* XXX Don't Lock */ 160 #define CTLFLAG_ANYBODY 0x10000000 /* All users can set this var */ 161 #define CTLFLAG_SECURE 0x08000000 /* Permit set only if securelevel<=0 */ 162 #define CTLFLAG_MASKED 0x04000000 /* deprecated variable, do not display */ 163 #define CTLFLAG_NOAUTO 0x02000000 /* do not auto-register */ 164 #define CTLFLAG_KERN 0x01000000 /* valid inside the kernel */ 165 #define CTLFLAG_LOCKED 0x00800000 /* node will handle locking itself */ 166 #define CTLFLAG_OID2 0x00400000 /* struct sysctl_oid has version info */ 167 #if XNU_KERNEL_PRIVATE 168 #define CTLFLAG_PERMANENT 0x00200000 /* permanent sysctl_oid */ 169 #endif 170 #define CTLFLAG_EXPERIMENT 0x00100000 /* Allows writing w/ the trial experiment entitlement. */ 171 172 /* 173 * USE THIS instead of a hardwired number from the categories below 174 * to get dynamically assigned sysctl entries using the linker-set 175 * technology. This is the way nearly all new sysctl variables should 176 * be implemented. 177 * 178 * e.g. SYSCTL_INT(_parent, OID_AUTO, name, CTLFLAG_RW, &variable, 0, ""); 179 * 180 * Note that linker set technology will automatically register all nodes 181 * declared like this on kernel initialization, UNLESS they are defined 182 * in I/O-Kit. In this case, you have to call sysctl_register_oid() 183 * manually - just like in a KEXT. 184 */ 185 #define OID_AUTO (-1) 186 #if XNU_KERNEL_PRIVATE 187 /* 188 * Used to allow for most of the core kernel sysctl OIDs to be in immutable 189 * memory. The nodes that can be extensible have a fake first node with this 190 * particular oid_number which hangs a second mutable list from this node. 191 * 192 * This node is always first when it is used 193 */ 194 #define OID_MUTABLE_ANCHOR (INT_MIN) 195 #endif 196 #define OID_AUTO_START 100 /* conventional */ 197 198 #ifdef KERNEL 199 #define SYSCTL_HANDLER_ARGS \ 200 (struct sysctl_oid *oidp __unused, void *arg1 __unused, int arg2 __unused, \ 201 struct sysctl_req *req) 202 203 204 /* 205 * This describes the access space for a sysctl request. This is needed 206 * so that we can use the interface from the kernel or from user-space. 207 */ 208 struct sysctl_req { 209 struct proc *p; 210 int lock; 211 user_addr_t oldptr; /* pointer to user supplied buffer */ 212 size_t oldlen; /* user buffer length (also returned) */ 213 size_t oldidx; /* total data iteratively copied out */ 214 int (*oldfunc)(struct sysctl_req *, const void *, size_t); 215 user_addr_t newptr; /* buffer containing new value */ 216 size_t newlen; /* length of new value */ 217 size_t newidx; /* total data iteratively copied in */ 218 int (*newfunc)(struct sysctl_req *, void *, size_t); 219 }; 220 221 SLIST_HEAD(sysctl_oid_list, sysctl_oid); 222 223 #define SYSCTL_OID_VERSION 1 /* current OID structure version */ 224 225 /* 226 * This describes one "oid" in the MIB tree. Potentially more nodes can 227 * be hidden behind it, expanded by the handler. 228 * 229 * NOTES: We implement binary comparibility between CTLFLAG_OID2 and 230 * pre-CTLFLAG_OID2 structure in sysctl_register_oid() and in 231 * sysctl_unregister_oid() using the fact that the fields up 232 * to oid_fmt are unchanged, and that the field immediately 233 * following is on an alignment boundary following a pointer 234 * type and is also a pointer. This lets us get the previous 235 * size of the structure, and the copy-cut-off point, using 236 * the offsetof() language primitive, and these values are 237 * used in conjunction with the fact that earlier and future 238 * statically compiled sysctl_oid structures are declared via 239 * macros. This lets us overload the macros so that the addition 240 * of the CTLFLAG_OID2 in newly compiled code containing sysctl 241 * node declarations, subsequently allowing us to to avoid 242 * changing the KPI used for non-static (un)registration in 243 * KEXTs. 244 * 245 * Non CTLFLAG_OID2 based sysctls are deprecated and unavailable 246 * to non Intel platforms. 247 * 248 * This depends on the fact that people declare SYSCTLs, 249 * rather than declaring sysctl_oid structures. All new code 250 * should avoid declaring struct sysctl_oid's directly without 251 * the macros; the current risk for this is limited to losing 252 * your description field and ending up with a malloc'ed copy, 253 * as if it were a legacy binary static declaration via SYSCTL; 254 * in the future, we may deprecate access to a named structure 255 * type in third party code. Use the macros, or our code will 256 * end up with compile errors when that happens. 257 * 258 * Please try to include a long description of the field in any 259 * new sysctl declarations (all the macros support this). This 260 * field may be the only human readable documentation your users 261 * get for your sysctl. 262 */ 263 struct sysctl_oid { 264 struct sysctl_oid_list * OS_PTRAUTH_SIGNED_PTR("sysctl_oid.oid_parent") oid_parent; 265 SLIST_ENTRY(sysctl_oid) oid_link; 266 int oid_number; 267 int oid_kind; 268 void *oid_arg1; 269 int oid_arg2; 270 const char *oid_name; 271 int (*oid_handler)SYSCTL_HANDLER_ARGS; 272 const char *oid_fmt; 273 const char *oid_descr; /* offsetof() field / long description */ 274 int oid_version; 275 int oid_refcnt; 276 }; 277 278 #define SYSCTL_IN(r, p, l) (r->newfunc)(r, p, l) 279 #define SYSCTL_OUT(r, p, l) (r->oldfunc)(r, p, l) 280 281 typedef int (* sysctl_handler_t) SYSCTL_HANDLER_ARGS; 282 283 __BEGIN_DECLS 284 285 /* old interface */ 286 int sysctl_handle_int SYSCTL_HANDLER_ARGS; 287 int sysctl_handle_long SYSCTL_HANDLER_ARGS; 288 int sysctl_handle_quad SYSCTL_HANDLER_ARGS; 289 int sysctl_handle_int2quad SYSCTL_HANDLER_ARGS; 290 int sysctl_handle_string SYSCTL_HANDLER_ARGS; 291 int sysctl_handle_opaque SYSCTL_HANDLER_ARGS; 292 /* new interface */ 293 int sysctl_io_number(struct sysctl_req *req, long long bigValue, size_t valueSize, void *pValue, int *changed); 294 int sysctl_io_string(struct sysctl_req *req, char *pValue, size_t valueSize, int trunc, int *changed); 295 int sysctl_io_opaque(struct sysctl_req *req, void *pValue, size_t valueSize, int *changed); 296 297 /* 298 * These functions are used to add/remove an oid from the mib. 299 */ 300 void sysctl_register_oid(struct sysctl_oid *oidp); 301 void sysctl_unregister_oid(struct sysctl_oid *oidp); 302 303 #define nvram_osenvironment "osenvironment" 304 void sysctl_set_osenvironment(unsigned int size, const void* value); 305 void sysctl_unblock_osenvironment(void); 306 307 /* Deprecated */ 308 void sysctl_register_fixed(void) __deprecated; 309 310 __END_DECLS 311 312 /* Declare an oid to allow child oids to be added to it. */ 313 #define SYSCTL_DECL(name) \ 314 extern struct sysctl_oid_list sysctl_##name##_children 315 316 /* 317 * Macros to define sysctl entries. Which to use? Pure data that are 318 * returned without modification, SYSCTL_<data type> is for you, like 319 * SYSCTL_QUAD for a 64-bit value. When you want to run a handler of your 320 * own, SYSCTL_PROC. 321 * 322 * parent: parent in name hierarchy (e.g. _kern for "kern") 323 * nbr: ID. Almost certainly OID_AUTO ("pick one for me") for you. 324 * name: name for this particular item (e.g. "thesysctl" for "kern.thesysctl") 325 * kind/access: Control flags (CTLFLAG_*). Some notable options include: 326 * CTLFLAG_ANYBODY: non-root users allowed 327 * CTLFLAG_MASKED: don't show in sysctl listing in userland 328 * CTLFLAG_LOCKED: does own locking (no additional protection needed) 329 * CTLFLAG_KERN: valid inside kernel (best avoided generally) 330 * CTLFLAG_WR: "new" value accepted 331 * a1, a2: entry-data, passed to handler (see specific macros) 332 * Format String: Tells "sysctl" tool how to print data from this entry. 333 * "A" - string 334 * "I" - list of integers. "IU" - list of unsigned integers. space-separated. 335 * "-" - do not print 336 * "L" - longs, as ints with I 337 * "P" - pointer 338 * "Q" - quads 339 * "S","T" - clock info, see sysctl.c in system_cmds (you probably don't need this) 340 * Description: unused 341 */ 342 343 344 /* This constructs a "raw" MIB oid. */ 345 #define SYSCTL_STRUCT_INIT(parent, nbr, name, kind, a1, a2, fn, fmt, desc) { \ 346 .oid_parent = &sysctl_##parent##_children, \ 347 .oid_number = nbr, \ 348 .oid_kind = (int)(kind | CTLFLAG_OID2), \ 349 .oid_arg1 = a1, \ 350 .oid_arg2 = (int)(a2), \ 351 .oid_name = #name, \ 352 .oid_handler = fn, \ 353 .oid_fmt = fmt, \ 354 .oid_descr = desc, \ 355 .oid_version = SYSCTL_OID_VERSION, \ 356 } 357 358 #define __SYSCTL_OID(parent, nbr, name, kind, a1, a2, handler, fmt, descr) \ 359 struct sysctl_oid sysctl_##parent##_##name = SYSCTL_STRUCT_INIT(\ 360 parent, nbr, name, kind, a1, a2, handler, fmt, descr) 361 362 #if XNU_KERNEL_PRIVATE 363 364 /* 365 * Core kernel registers sysctls before lockdown and protects those entries 366 * in immutable memory. 367 * 368 * When a node needs to support dynamic extension after lockdown, it needs to be 369 * declared with SYSCTL_EXTENSIBLE_NODE() to insert a dummy "OID_MUTABLE_ANCHOR" 370 * node in this node chain which will allow extensibility. 371 * 372 * OIDs that are to be inserted dynamically based on system properties that 373 * aren't known at compile time, have three options, in increasing order of 374 * unsafety: 375 * 376 * - The OID can use the CTLFLAG_NOAUTO flag. Such entries aren't inserted to 377 * the sysctl tree automatically but will be made read-only at lock down. 378 * 379 * Such entries must be inserted in the STARTUP_SUB_SYSCTL "Middle" phase 380 * using sysctl_register_oid_early(). 381 * 382 * - The OID can be always registered and test whether it is ready to operate. 383 * When it is not, it must return ENOENT which simulates an absent entry. 384 * 385 * This however has the downside that the entry is still resolvable as an MIB 386 * or listed in `sysctl -a` when it isn't masked. 387 * 388 * This is acceptable for sysctls that will become valid quickly during boot 389 * (but after lockdown). 390 * 391 * - SYSCTL_OID_MANUAL / SYSCTL_NODE_MANUAL can be used for completely 392 * dynamic/manual oid registration. Such nodes must be registered with 393 * sysctl_register_oid() after lockdown. 394 * 395 * This is the least preferred solution. 396 */ 397 398 __BEGIN_DECLS 399 void sysctl_register_oid_early(struct sysctl_oid *oidp); 400 __END_DECLS 401 402 #define SYSCTL_OID_MANUAL(parent, nbr, name, kind, a1, a2, handler, fmt, descr) \ 403 __XNU_PRIVATE_EXTERN \ 404 __SYSCTL_OID(parent, nbr, name, kind, a1, a2, handler, fmt, descr) 405 406 #define SYSCTL_NODE_MANUAL(parent, nbr, name, access, handler, descr) \ 407 struct sysctl_oid_list sysctl_##parent##_##name##_children; \ 408 __XNU_PRIVATE_EXTERN \ 409 __SYSCTL_OID(parent, nbr, name, CTLTYPE_NODE|access, \ 410 &sysctl_##parent##_##name##_children, 0, handler, "N", descr); 411 412 #define SYSCTL_OID(parent, nbr, name, kind, a1, a2, handler, fmt, descr) \ 413 __security_const_late __XNU_PRIVATE_EXTERN \ 414 __SYSCTL_OID(parent, nbr, name, CTLFLAG_PERMANENT|kind, \ 415 a1, a2, handler, fmt, descr); \ 416 __STARTUP_ARG(sysctl_##parent, _##name, \ 417 SYSCTL, STARTUP_RANK_SECOND, sysctl_register_oid_early, \ 418 &sysctl_##parent##_##name) 419 420 #define __SYSCTL_NODE(parent, nbr, name, access, handler, descr) \ 421 __security_const_late \ 422 struct sysctl_oid_list sysctl_##parent##_##name##_children; \ 423 __security_const_late __XNU_PRIVATE_EXTERN \ 424 __SYSCTL_OID(parent, nbr, name, CTLFLAG_PERMANENT|CTLTYPE_NODE|access, \ 425 &sysctl_##parent##_##name##_children, 0, handler, "N", descr); \ 426 __STARTUP_ARG(sysctl_##parent, _##name, \ 427 SYSCTL, STARTUP_RANK_FIRST, sysctl_register_oid_early, \ 428 &sysctl_##parent##_##name) 429 430 #define __SYSCTL_EXTENSION_NODE(name) \ 431 static __security_read_write \ 432 struct sysctl_oid_list sysctl_##name##_children_mutable; \ 433 static __security_const_late \ 434 struct sysctl_oid sysctl_##name##_wranchor = { \ 435 .oid_parent = &sysctl_##name##_children, \ 436 .oid_number = OID_MUTABLE_ANCHOR, \ 437 .oid_kind = CTLFLAG_OID2 | CTLFLAG_PERMANENT, \ 438 .oid_arg1 = &sysctl_##name##_children_mutable, \ 439 .oid_name = "__anchor__(" #name ")", \ 440 .oid_version = SYSCTL_OID_VERSION, \ 441 }; \ 442 __STARTUP_ARG(sysctl_##name, _wranchor, \ 443 SYSCTL, STARTUP_RANK_LAST, sysctl_register_oid_early, \ 444 &sysctl_##name##_wranchor) 445 446 #define SYSCTL_NODE(parent, nbr, name, access, handler, descr) \ 447 __XNU_PRIVATE_EXTERN \ 448 __SYSCTL_NODE(parent, nbr, name, access, handler, descr) 449 450 #define SYSCTL_EXTENSIBLE_NODE(parent, nbr, name, access, handler, descr) \ 451 __SYSCTL_NODE(parent, nbr, name, access, handler, descr); \ 452 __SYSCTL_EXTENSION_NODE(parent##_##name) 453 #else 454 #define SYSCTL_OID(parent, nbr, name, kind, a1, a2, handler, fmt, descr) \ 455 __SYSCTL_OID(parent, nbr, name, kind, a1, a2, handler, fmt, descr) 456 457 /* This constructs a node from which other oids can hang. */ 458 #define SYSCTL_NODE(parent, nbr, name, access, handler, descr) \ 459 struct sysctl_oid_list sysctl_##parent##_##name##_children; \ 460 SYSCTL_OID(parent, nbr, name, CTLTYPE_NODE|access, \ 461 &sysctl_##parent##_##name##_children, 0, handler, "N", descr) 462 #endif /* XNU_KERNEL_PRIVATE */ 463 464 /* Oid for a string. len can be 0 to indicate '\0' termination. */ 465 #define SYSCTL_STRING(parent, nbr, name, access, arg, len, descr) \ 466 SYSCTL_OID(parent, nbr, name, CTLTYPE_STRING|access, \ 467 arg, len, sysctl_handle_string, "A", descr) 468 469 #define SYSCTL_COMPAT_INT(parent, nbr, name, access, ptr, val, descr) \ 470 SYSCTL_OID(parent, nbr, name, CTLTYPE_INT|access, \ 471 ptr, val, sysctl_handle_int, "I", descr) 472 473 #define SYSCTL_COMPAT_UINT(parent, nbr, name, access, ptr, val, descr) \ 474 SYSCTL_OID(parent, nbr, name, CTLTYPE_INT|access, \ 475 ptr, val, sysctl_handle_int, "IU", descr) 476 477 /* Oid for an int. If ptr is NULL, val is returned. */ 478 #define SYSCTL_INT(parent, nbr, name, access, ptr, val, descr) \ 479 SYSCTL_OID(parent, nbr, name, CTLTYPE_INT|access, \ 480 ptr, val, sysctl_handle_int, "I", descr); \ 481 _Static_assert(__builtin_constant_p(ptr) || sizeof(*(ptr)) == sizeof(int), \ 482 "must be integer sized"); 483 484 /* Oid for an unsigned int. If ptr is NULL, val is returned. */ 485 #define SYSCTL_UINT(parent, nbr, name, access, ptr, val, descr) \ 486 SYSCTL_OID(parent, nbr, name, CTLTYPE_INT|access, \ 487 ptr, val, sysctl_handle_int, "IU", descr); \ 488 _Static_assert(__builtin_constant_p(ptr) || sizeof(*(ptr)) == sizeof(unsigned int), \ 489 "must be integer sized"); 490 491 /* Oid for a long. The pointer must be non NULL. */ 492 #define SYSCTL_LONG(parent, nbr, name, access, ptr, descr) \ 493 SYSCTL_OID(parent, nbr, name, CTLTYPE_INT|access, \ 494 ptr, 0, sysctl_handle_long, "L", descr); \ 495 _Static_assert(__builtin_constant_p(ptr) || sizeof(*(ptr)) == sizeof(long), \ 496 "must be long sized"); 497 498 /* Oid for a unsigned long. The pointer must be non NULL. */ 499 #define SYSCTL_ULONG(parent, nbr, name, access, ptr, descr) \ 500 SYSCTL_OID(parent, nbr, name, CTLTYPE_INT|access, \ 501 ptr, 0, sysctl_handle_long, "LU", descr); \ 502 _Static_assert(__builtin_constant_p(ptr) || sizeof(*(ptr)) == sizeof(unsigned long), \ 503 "must be long sized"); 504 505 /* Oid for a quad. The pointer must be non NULL. */ 506 #define SYSCTL_QUAD(parent, nbr, name, access, ptr, descr) \ 507 SYSCTL_OID(parent, nbr, name, CTLTYPE_QUAD|access, \ 508 ptr, 0, sysctl_handle_quad, "Q", descr); \ 509 _Static_assert(__builtin_constant_p(ptr) || sizeof(*(ptr)) == sizeof(long long), \ 510 "must be long long sized"); 511 512 /* Oid for an opaque object. Specified by a pointer and a length. */ 513 #define SYSCTL_OPAQUE(parent, nbr, name, access, ptr, len, fmt, descr) \ 514 SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|access, \ 515 ptr, len, sysctl_handle_opaque, fmt, descr) 516 517 /* Oid for a struct. Specified by a pointer and a type. */ 518 #define SYSCTL_STRUCT(parent, nbr, name, access, ptr, type, descr) \ 519 SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|access, \ 520 ptr, sizeof(struct type), sysctl_handle_opaque, \ 521 "S," #type, descr) 522 523 /* 524 * Oid for a procedure. Specified by a pointer and an arg. 525 * CTLTYPE_* macros can determine how the "sysctl" tool deals with 526 * input (e.g. converting to int). 527 */ 528 #define SYSCTL_PROC(parent, nbr, name, access, ptr, arg, handler, fmt, descr) \ 529 SYSCTL_OID(parent, nbr, name, access, \ 530 ptr, arg, handler, fmt, descr) 531 532 /* 533 * The EXPERIMENT macros below expose values for on-device experimentation (A/B testing) via Trial. 534 * These values will be set shortly after boot by the KRExperiments framework based on any 535 * active experiments on the device. 536 * Values exposed via these macros are still normal sysctls and can be set by the superuser in the 537 * development or debug kernel. However, on the release kernel they can ONLY be set by processes 538 * with the com.apple.private.write-kr-experiment-factors entitlement. 539 * In addition, for numeric types, special macros are provided that enforce a valid range for the value (inclusive) 540 * to ensure that an errant experiment can't set a totally unexpected value. These macros also track which 541 * values have been modified via sycstl(3) so that they can be inspected with the showexperiments lldb macro. 542 */ 543 544 struct experiment_spec { 545 void *ptr; /* ptr to numeric experiment factor. */ 546 uint64_t min_value; /* Min value that can be set via sysctl(3) (inclusive). */ 547 uint64_t max_value; /* Max value that can be set via sysctl(3) (inclusive). */ 548 uint64_t original_value; /* First value that was overwritten via sysctl(3). */ 549 _Atomic bool modified; /* Has this value ever been overwritten via sysctl(3)? */ 550 }; 551 552 /* 553 * The handlers for the numeric types can be easily parameterized by type. 554 * So they're defined via an X macro. 555 */ 556 #define experiment_factor_numeric_types \ 557 X(uint, unsigned int) \ 558 X(int, int) \ 559 X(ulong, unsigned long) \ 560 X(long, long) \ 561 X(uint64, uint64_t) \ 562 X(int64, int64_t) 563 564 #define X(experiment_factor_typename, _) \ 565 int experiment_factor_##experiment_factor_typename##_handler SYSCTL_HANDLER_ARGS; 566 567 experiment_factor_numeric_types 568 #undef X 569 570 #define __EXPERIMENT_FACTOR_SPEC(parent, name, p, min, max) \ 571 struct experiment_spec experiment_##parent##_##name = { \ 572 .ptr = p, \ 573 .min_value = min, \ 574 .max_value = max, \ 575 .original_value = 0, \ 576 .modified = false \ 577 } 578 579 #define EXPERIMENT_FACTOR_UINT(parent, name, ptr, min, max, descr) \ 580 __EXPERIMENT_FACTOR_SPEC(parent, name, ptr, min, max); \ 581 _Static_assert(sizeof(*(ptr)) == sizeof(unsigned int), "must be integer sized"); \ 582 SYSCTL_PROC(parent, OID_AUTO, name, CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_ANYBODY | CTLFLAG_EXPERIMENT, &experiment_##parent##_##name, 1, &experiment_factor_uint_handler, "IU", descr); 583 584 #define EXPERIMENT_FACTOR_INT(parent, name, ptr, min, max, descr) \ 585 __EXPERIMENT_FACTOR_SPEC(parent, name, ptr, min, max); \ 586 _Static_assert(sizeof(*(ptr)) == sizeof(int), "must be integer sized"); \ 587 SYSCTL_PROC(parent, OID_AUTO, name, CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_ANYBODY | CTLFLAG_EXPERIMENT, &experiment_##parent##_##name, 1, &experiment_factor_int_handler, "I", descr); 588 589 #define EXPERIMENT_FACTOR_ULONG(parent, name, ptr, min, max, descr) \ 590 __EXPERIMENT_FACTOR_SPEC(parent, name, ptr, min, max); \ 591 _Static_assert(sizeof(*(ptr)) == sizeof(unsigned long), "must be long sized"); \ 592 SYSCTL_PROC(parent, OID_AUTO, name, CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_ANYBODY | CTLFLAG_EXPERIMENT, &experiment_##parent##_##name, 1, &experiment_factor_ulong_handler, "LU", descr); 593 594 #define EXPERIMENT_FACTOR_LONG(parent, name, ptr, min, max, descr) \ 595 __EXPERIMENT_FACTOR_SPEC(parent, name, ptr, min, max); \ 596 _Static_assert(sizeof(*(ptr)) == sizeof(long), "must be long sized"); \ 597 SYSCTL_PROC(parent, OID_AUTO, name, CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_ANYBODY | CTLFLAG_EXPERIMENT, &experiment_##parent##_##name, 1, &experiment_factor_long_handler, "L", descr); 598 599 #define EXPERIMENT_FACTOR_UINT64(parent, name, ptr, min, max, descr) \ 600 __EXPERIMENT_FACTOR_SPEC(parent, name, ptr, min, max); \ 601 _Static_assert(sizeof(*(ptr)) == sizeof(uint64_t), "must be 8 bytes"); \ 602 SYSCTL_PROC(parent, OID_AUTO, name, CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_ANYBODY | CTLFLAG_EXPERIMENT, &experiment_##parent##_##name, 1, &experiment_factor_uint64_handler, "QU", descr); 603 604 #define EXPERIMENT_FACTOR_INT64(parent, name, ptr, min, max, descr) \ 605 __EXPERIMENT_FACTOR_SPEC(parent, name, ptr, min, max); \ 606 _Static_assert(sizeof(*(ptr)) == sizeof(int64_t), "must be 8 bytes"); \ 607 SYSCTL_PROC(parent, OID_AUTO, name, CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_ANYBODY | CTLFLAG_EXPERIMENT, &experiment_##parent##_##name, 1, &experiment_factor_int64_handler, "Q", descr); 608 609 /* 610 * Calls an user provided handler to read / write this factor. 611 * Entitlement checking will still be done by sysctl, but it's the callers responsibility to validate any new values. 612 * This factor will not be printed out via the showexperiments lldb macro. 613 */ 614 #define EXPERIMENT_FACTOR_PROC(parent, name, access, ptr, arg, handler, fmt, descr) \ 615 _Static_assert(arg != 1, "arg can not be 1"); \ 616 SYSCTL_PROC(parent, OID_AUTO, name, access | CTLFLAG_ANYBODY | CTLFLAG_EXPERIMENT, ptr, arg, handler, fmt, descr); 617 618 #ifdef XNU_KERNEL_PRIVATE 619 /* 620 * Sysctl handler for reading a simple counter. 621 * Using this directly is not recommended. Use the SYSCTL_SCALABLE_COUNTER macro 622 */ 623 int scalable_counter_sysctl_handler SYSCTL_HANDLER_ARGS; 624 625 /*! 626 * @macro SYSCTL_SCALABLE_COUNTER 627 * 628 * @abstract 629 * Provides a sysctl for reading the value of a percpu counter. 630 */ 631 #define SYSCTL_SCALABLE_COUNTER(parent, name, counter, descr) \ 632 SYSCTL_PROC(parent, OID_AUTO, name, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_LOCKED, \ 633 (void *)(&counter), 0, &scalable_counter_sysctl_handler, "Q", descr); 634 #endif /* XNU_KERNEL_PRIVATE */ 635 636 extern struct sysctl_oid_list sysctl__children; 637 SYSCTL_DECL(_kern); 638 SYSCTL_DECL(_sysctl); 639 SYSCTL_DECL(_vm); 640 SYSCTL_DECL(_vfs); 641 SYSCTL_DECL(_net); 642 SYSCTL_DECL(_debug); 643 SYSCTL_DECL(_hw); 644 SYSCTL_DECL(_machdep); 645 SYSCTL_DECL(_user); 646 647 #ifdef PRIVATE 648 SYSCTL_DECL(_kern_bridge); 649 SYSCTL_DECL(_hw_features); 650 #endif 651 652 653 #ifndef SYSCTL_SKMEM_UPDATE_FIELD 654 655 #define SYSCTL_SKMEM 0 656 #define SYSCTL_SKMEM_UPDATE_FIELD(field, value) 657 #define SYSCTL_SKMEM_UPDATE_AT_OFFSET(offset, value) 658 #define SYSCTL_SKMEM_INT(parent, oid, sysctl_name, access, ptr, offset, descr) \ 659 SYSCTL_INT(parent, oid, sysctl_name, access, ptr, 0, descr) 660 661 #define SYSCTL_SKMEM_TCP_INT(oid, sysctl_name, access, variable_type, \ 662 variable_name, initial_value, descr) \ 663 variable_type variable_name = initial_value; \ 664 SYSCTL_SKMEM_INT(_net_inet_tcp, oid, sysctl_name, access, \ 665 &variable_name, 0, descr) 666 667 #else /* SYSCTL_SKMEM_UPDATE_FIELD */ 668 #define SYSCTL_SKMEM 1 669 #endif /* SYSCTL_SKMEM_UPDATE_FIELD */ 670 671 672 673 #endif /* KERNEL */ 674 675 #ifdef XNU_KERNEL_PRIVATE 676 #define SYSCTL_DEF_ENABLED 677 #else 678 #ifndef KERNEL 679 #define SYSCTL_DEF_ENABLED 680 #endif 681 #endif 682 683 #ifdef SYSCTL_DEF_ENABLED 684 /* 685 * Top-level identifiers 686 */ 687 #define CTL_UNSPEC 0 /* unused */ 688 #define CTL_KERN 1 /* "high kernel": proc, limits */ 689 #define CTL_VM 2 /* virtual memory */ 690 #define CTL_VFS 3 /* file system, mount type is next */ 691 #define CTL_NET 4 /* network, see socket.h */ 692 #define CTL_DEBUG 5 /* debugging parameters */ 693 #define CTL_HW 6 /* generic cpu/io */ 694 #define CTL_MACHDEP 7 /* machine dependent */ 695 #define CTL_USER 8 /* user-level */ 696 #define CTL_MAXID 9 /* number of valid top-level ids */ 697 698 #define CTL_NAMES { \ 699 { 0, 0 }, \ 700 { "kern", CTLTYPE_NODE }, \ 701 { "vm", CTLTYPE_NODE }, \ 702 { "vfs", CTLTYPE_NODE }, \ 703 { "net", CTLTYPE_NODE }, \ 704 { "debug", CTLTYPE_NODE }, \ 705 { "hw", CTLTYPE_NODE }, \ 706 { "machdep", CTLTYPE_NODE }, \ 707 { "user", CTLTYPE_NODE }, \ 708 } 709 710 /* 711 * CTL_KERN identifiers 712 */ 713 #define KERN_OSTYPE 1 /* string: system version */ 714 #define KERN_OSRELEASE 2 /* string: system release */ 715 #define KERN_OSREV 3 /* int: system revision */ 716 #define KERN_VERSION 4 /* string: compile time info */ 717 #define KERN_MAXVNODES 5 /* int: max vnodes */ 718 #define KERN_MAXPROC 6 /* int: max processes */ 719 #define KERN_MAXFILES 7 /* int: max open files */ 720 #define KERN_ARGMAX 8 /* int: max arguments to exec */ 721 #define KERN_SECURELVL 9 /* int: system security level */ 722 #define KERN_HOSTNAME 10 /* string: hostname */ 723 #define KERN_HOSTID 11 /* int: host identifier */ 724 #define KERN_CLOCKRATE 12 /* struct: struct clockrate */ 725 #define KERN_VNODE 13 /* struct: vnode structures */ 726 #define KERN_PROC 14 /* struct: process entries */ 727 #define KERN_FILE 15 /* struct: file entries */ 728 #define KERN_PROF 16 /* node: kernel profiling info */ 729 #define KERN_POSIX1 17 /* int: POSIX.1 version */ 730 #define KERN_NGROUPS 18 /* int: # of supplemental group ids */ 731 #define KERN_JOB_CONTROL 19 /* int: is job control available */ 732 #define KERN_SAVED_IDS 20 /* int: saved set-user/group-ID */ 733 #define KERN_BOOTTIME 21 /* struct: time kernel was booted */ 734 #define KERN_NISDOMAINNAME 22 /* string: YP domain name */ 735 #define KERN_DOMAINNAME KERN_NISDOMAINNAME 736 #define KERN_MAXPARTITIONS 23 /* int: number of partitions/disk */ 737 #define KERN_KDEBUG 24 /* int: kernel trace points */ 738 #define KERN_UPDATEINTERVAL 25 /* int: update process sleep time */ 739 #define KERN_OSRELDATE 26 /* int: OS release date */ 740 #define KERN_NTP_PLL 27 /* node: NTP PLL control */ 741 #define KERN_BOOTFILE 28 /* string: name of booted kernel */ 742 #define KERN_MAXFILESPERPROC 29 /* int: max open files per proc */ 743 #define KERN_MAXPROCPERUID 30 /* int: max processes per uid */ 744 #define KERN_DUMPDEV 31 /* dev_t: device to dump on */ 745 #define KERN_IPC 32 /* node: anything related to IPC */ 746 #define KERN_DUMMY 33 /* unused */ 747 #define KERN_PS_STRINGS 34 /* int: address of PS_STRINGS */ 748 #define KERN_USRSTACK32 35 /* int: address of USRSTACK */ 749 #define KERN_LOGSIGEXIT 36 /* int: do we log sigexit procs? */ 750 #define KERN_SYMFILE 37 /* string: kernel symbol filename */ 751 #define KERN_PROCARGS 38 752 /* 39 was KERN_PCSAMPLES... now obsolete */ 753 #define KERN_NETBOOT 40 /* int: are we netbooted? 1=yes,0=no */ 754 /* 41 was KERN_PANICINFO : panic UI information (deprecated) */ 755 #define KERN_SYSV 42 /* node: System V IPC information */ 756 #define KERN_AFFINITY 43 /* xxx */ 757 #define KERN_TRANSLATE 44 /* xxx */ 758 #define KERN_CLASSIC KERN_TRANSLATE /* XXX backwards compat */ 759 #define KERN_EXEC 45 /* xxx */ 760 #define KERN_CLASSICHANDLER KERN_EXEC /* XXX backwards compatibility */ 761 #define KERN_AIOMAX 46 /* int: max aio requests */ 762 #define KERN_AIOPROCMAX 47 /* int: max aio requests per process */ 763 #define KERN_AIOTHREADS 48 /* int: max aio worker threads */ 764 #ifdef __APPLE_API_UNSTABLE 765 #define KERN_PROCARGS2 49 766 #endif /* __APPLE_API_UNSTABLE */ 767 #define KERN_COREFILE 50 /* string: corefile format string */ 768 #define KERN_COREDUMP 51 /* int: whether to coredump at all */ 769 #define KERN_SUGID_COREDUMP 52 /* int: whether to dump SUGID cores */ 770 #define KERN_PROCDELAYTERM 53 /* int: set/reset current proc for delayed termination during shutdown */ 771 #define KERN_SHREG_PRIVATIZABLE 54 /* int: can shared regions be privatized ? */ 772 /* 55 was KERN_PROC_LOW_PRI_IO... now deprecated */ 773 #define KERN_LOW_PRI_WINDOW 56 /* int: set/reset throttle window - milliseconds */ 774 #define KERN_LOW_PRI_DELAY 57 /* int: set/reset throttle delay - milliseconds */ 775 #define KERN_POSIX 58 /* node: posix tunables */ 776 #define KERN_USRSTACK64 59 /* LP64 user stack query */ 777 #define KERN_NX_PROTECTION 60 /* int: whether no-execute protection is enabled */ 778 #define KERN_TFP 61 /* Task for pid settings */ 779 #define KERN_PROCNAME 62 /* setup process program name(2*MAXCOMLEN) */ 780 #define KERN_THALTSTACK 63 /* for compat with older x86 and does nothing */ 781 #define KERN_SPECULATIVE_READS 64 /* int: whether speculative reads are disabled */ 782 #define KERN_OSVERSION 65 /* for build number i.e. 9A127 */ 783 #define KERN_SAFEBOOT 66 /* are we booted safe? */ 784 /* 67 was KERN_LCTX (login context) */ 785 #define KERN_RAGEVNODE 68 786 #define KERN_TTY 69 /* node: tty settings */ 787 #define KERN_CHECKOPENEVT 70 /* spi: check the VOPENEVT flag on vnodes at open time */ 788 #define KERN_THREADNAME 71 /* set/get thread name */ 789 #define KERN_MAXID 72 /* number of valid kern ids */ 790 /* 791 * Don't add any more sysctls like this. Instead, use the SYSCTL_*() macros 792 * and OID_AUTO. This will have the added benefit of not having to recompile 793 * sysctl(8) to pick up your changes. 794 */ 795 796 #if COUNT_SYSCALLS && defined(KERNEL) 797 #define KERN_COUNT_SYSCALLS (KERN_OSTYPE + 1000) /* keep called count for each bsd syscall */ 798 #endif 799 800 #if defined(__LP64__) 801 #define KERN_USRSTACK KERN_USRSTACK64 802 #else 803 #define KERN_USRSTACK KERN_USRSTACK32 804 #endif 805 806 807 /* KERN_RAGEVNODE types */ 808 #define KERN_RAGE_PROC 1 809 #define KERN_RAGE_THREAD 2 810 #define KERN_UNRAGE_PROC 3 811 #define KERN_UNRAGE_THREAD 4 812 813 /* KERN_OPENEVT types */ 814 #define KERN_OPENEVT_PROC 1 815 #define KERN_UNOPENEVT_PROC 2 816 817 /* KERN_TFP types */ 818 #define KERN_TFP_POLICY 1 819 820 /* KERN_TFP_POLICY values . All policies allow task port for self */ 821 #define KERN_TFP_POLICY_DENY 0 /* Deny Mode: None allowed except privileged */ 822 #define KERN_TFP_POLICY_DEFAULT 2 /* Default Mode: related ones allowed and upcall authentication */ 823 824 /* KERN_KDEBUG types */ 825 #define KERN_KDEFLAGS 1 826 #define KERN_KDDFLAGS 2 827 #define KERN_KDENABLE 3 828 #define KERN_KDSETBUF 4 829 #define KERN_KDGETBUF 5 830 #define KERN_KDSETUP 6 831 #define KERN_KDREMOVE 7 832 #define KERN_KDSETREG 8 833 #define KERN_KDGETREG 9 834 #define KERN_KDREADTR 10 835 #define KERN_KDPIDTR 11 836 #define KERN_KDTHRMAP 12 837 /* Don't use 13 as it is overloaded with KERN_VNODE */ 838 #define KERN_KDPIDEX 14 839 #define KERN_KDSETRTCDEC 15 /* obsolete */ 840 #define KERN_KDGETENTROPY 16 /* obsolete */ 841 #define KERN_KDWRITETR 17 842 #define KERN_KDWRITEMAP 18 843 #define KERN_KDTEST 19 844 /* 20 unused */ 845 #define KERN_KDREADCURTHRMAP 21 846 #define KERN_KDSET_TYPEFILTER 22 847 #define KERN_KDBUFWAIT 23 848 #define KERN_KDCPUMAP 24 849 /* 25 - 26 unused */ 850 #define KERN_KDWRITEMAP_V3 27 851 #define KERN_KDWRITETR_V3 28 852 853 #define CTL_KERN_NAMES { \ 854 { 0, 0 }, \ 855 { "ostype", CTLTYPE_STRING }, \ 856 { "osrelease", CTLTYPE_STRING }, \ 857 { "osrevision", CTLTYPE_INT }, \ 858 { "version", CTLTYPE_STRING }, \ 859 { "maxvnodes", CTLTYPE_INT }, \ 860 { "maxproc", CTLTYPE_INT }, \ 861 { "maxfiles", CTLTYPE_INT }, \ 862 { "argmax", CTLTYPE_INT }, \ 863 { "securelevel", CTLTYPE_INT }, \ 864 { "hostname", CTLTYPE_STRING }, \ 865 { "hostid", CTLTYPE_INT }, \ 866 { "clockrate", CTLTYPE_STRUCT }, \ 867 { "vnode", CTLTYPE_STRUCT }, \ 868 { "proc", CTLTYPE_STRUCT }, \ 869 { "file", CTLTYPE_STRUCT }, \ 870 { "profiling", CTLTYPE_NODE }, \ 871 { "posix1version", CTLTYPE_INT }, \ 872 { "ngroups", CTLTYPE_INT }, \ 873 { "job_control", CTLTYPE_INT }, \ 874 { "saved_ids", CTLTYPE_INT }, \ 875 { "boottime", CTLTYPE_STRUCT }, \ 876 { "nisdomainname", CTLTYPE_STRING }, \ 877 { "maxpartitions", CTLTYPE_INT }, \ 878 { "kdebug", CTLTYPE_INT }, \ 879 { "update", CTLTYPE_INT }, \ 880 { "osreldate", CTLTYPE_INT }, \ 881 { "ntp_pll", CTLTYPE_NODE }, \ 882 { "bootfile", CTLTYPE_STRING }, \ 883 { "maxfilesperproc", CTLTYPE_INT }, \ 884 { "maxprocperuid", CTLTYPE_INT }, \ 885 { "dumpdev", CTLTYPE_STRUCT }, /* we lie; don't print as int */ \ 886 { "ipc", CTLTYPE_NODE }, \ 887 { "dummy", CTLTYPE_INT }, \ 888 { "dummy", CTLTYPE_INT }, \ 889 { "usrstack", CTLTYPE_INT }, \ 890 { "logsigexit", CTLTYPE_INT }, \ 891 { "symfile",CTLTYPE_STRING },\ 892 { "procargs",CTLTYPE_STRUCT },\ 893 { "dummy", CTLTYPE_INT }, /* deprecated pcsamples */ \ 894 { "netboot", CTLTYPE_INT }, \ 895 { "dummy", CTLTYPE_INT }, /* deprecated: panicinfo */ \ 896 { "sysv", CTLTYPE_NODE }, \ 897 { "dummy", CTLTYPE_INT }, \ 898 { "dummy", CTLTYPE_INT }, \ 899 { "exec", CTLTYPE_NODE }, \ 900 { "aiomax", CTLTYPE_INT }, \ 901 { "aioprocmax", CTLTYPE_INT }, \ 902 { "aiothreads", CTLTYPE_INT }, \ 903 { "procargs2",CTLTYPE_STRUCT }, \ 904 { "corefile",CTLTYPE_STRING }, \ 905 { "coredump", CTLTYPE_INT }, \ 906 { "sugid_coredump", CTLTYPE_INT }, \ 907 { "delayterm", CTLTYPE_INT }, \ 908 { "shreg_private", CTLTYPE_INT }, \ 909 { "proc_low_pri_io", CTLTYPE_INT }, \ 910 { "low_pri_window", CTLTYPE_INT }, \ 911 { "low_pri_delay", CTLTYPE_INT }, \ 912 { "posix", CTLTYPE_NODE }, \ 913 { "usrstack64", CTLTYPE_QUAD }, \ 914 { "nx", CTLTYPE_INT }, \ 915 { "tfp", CTLTYPE_NODE }, \ 916 { "procname", CTLTYPE_STRING }, \ 917 { "threadsigaltstack", CTLTYPE_INT }, \ 918 { "speculative_reads_disabled", CTLTYPE_INT }, \ 919 { "osversion", CTLTYPE_STRING }, \ 920 { "safeboot", CTLTYPE_INT }, \ 921 { "dummy", CTLTYPE_INT }, /* deprecated: lctx */ \ 922 { "rage_vnode", CTLTYPE_INT }, \ 923 { "tty", CTLTYPE_NODE }, \ 924 { "check_openevt", CTLTYPE_INT }, \ 925 { "thread_name", CTLTYPE_STRING } \ 926 } 927 928 /* 929 * CTL_VFS identifiers 930 */ 931 #define CTL_VFS_NAMES { \ 932 { "vfsconf", CTLTYPE_STRUCT } \ 933 } 934 935 /* 936 * KERN_PROC subtypes 937 */ 938 #define KERN_PROC_ALL 0 /* everything */ 939 #define KERN_PROC_PID 1 /* by process id */ 940 #define KERN_PROC_PGRP 2 /* by process group id */ 941 #define KERN_PROC_SESSION 3 /* by session of pid */ 942 #define KERN_PROC_TTY 4 /* by controlling tty */ 943 #define KERN_PROC_UID 5 /* by effective uid */ 944 #define KERN_PROC_RUID 6 /* by real uid */ 945 #define KERN_PROC_LCID 7 /* by login context id */ 946 947 /* 948 * KERN_VFSNSPACE subtypes 949 */ 950 #define KERN_VFSNSPACE_HANDLE_PROC 1 951 #define KERN_VFSNSPACE_UNHANDLE_PROC 2 952 953 #if defined(XNU_KERNEL_PRIVATE) || !defined(KERNEL) 954 /* 955 * KERN_PROC subtype ops return arrays of augmented proc structures: 956 */ 957 958 struct _pcred { 959 char pc_lock[72]; /* opaque content */ 960 struct ucred *pc_ucred; /* Current credentials. */ 961 uid_t p_ruid; /* Real user id. */ 962 uid_t p_svuid; /* Saved effective user id. */ 963 gid_t p_rgid; /* Real group id. */ 964 gid_t p_svgid; /* Saved effective group id. */ 965 int p_refcnt; /* Number of references. */ 966 }; 967 968 struct _ucred { 969 int32_t cr_ref; /* reference count */ 970 uid_t cr_uid; /* effective user id */ 971 short cr_ngroups; /* number of groups */ 972 gid_t cr_groups[NGROUPS]; /* groups */ 973 }; 974 975 struct kinfo_proc { 976 struct extern_proc kp_proc; /* proc structure */ 977 struct eproc { 978 struct proc *e_paddr; /* address of proc */ 979 struct session *e_sess; /* session pointer */ 980 struct _pcred e_pcred; /* process credentials */ 981 struct _ucred e_ucred; /* current credentials */ 982 struct vmspace e_vm; /* address space */ 983 pid_t e_ppid; /* parent process id */ 984 pid_t e_pgid; /* process group id */ 985 short e_jobc; /* job control counter */ 986 dev_t e_tdev; /* controlling tty dev */ 987 pid_t e_tpgid; /* tty process group id */ 988 struct session *e_tsess; /* tty session pointer */ 989 #define WMESGLEN 7 990 char e_wmesg[WMESGLEN + 1]; /* wchan message */ 991 segsz_t e_xsize; /* text size */ 992 short e_xrssize; /* text rss */ 993 short e_xccount; /* text references */ 994 short e_xswrss; 995 int32_t e_flag; 996 #define EPROC_CTTY 0x01 /* controlling tty vnode active */ 997 #define EPROC_SLEADER 0x02 /* session leader */ 998 #define COMAPT_MAXLOGNAME 12 999 char e_login[COMAPT_MAXLOGNAME]; /* short setlogin() name */ 1000 int32_t e_spare[4]; 1001 } kp_eproc; 1002 }; 1003 1004 #endif /* defined(XNU_KERNEL_PRIVATE) || !defined(KERNEL) */ 1005 1006 #ifdef BSD_KERNEL_PRIVATE 1007 #include <sys/proc_internal.h> 1008 1009 /* LP64 version of _pcred. all pointers 1010 * grow when we're dealing with a 64-bit process. 1011 * WARNING - keep in sync with _pcred 1012 */ 1013 1014 struct user32_pcred { 1015 char pc_lock[72]; /* opaque content */ 1016 user32_addr_t pc_ucred; /* Current credentials. */ 1017 uid_t p_ruid; /* Real user id. */ 1018 uid_t p_svuid; /* Saved effective user id. */ 1019 gid_t p_rgid; /* Real group id. */ 1020 gid_t p_svgid; /* Saved effective group id. */ 1021 int p_refcnt; /* Number of references. */ 1022 }; 1023 struct user64_pcred { 1024 char pc_lock[72]; /* opaque content */ 1025 user64_addr_t pc_ucred; /* Current credentials. */ 1026 uid_t p_ruid; /* Real user id. */ 1027 uid_t p_svuid; /* Saved effective user id. */ 1028 gid_t p_rgid; /* Real group id. */ 1029 gid_t p_svgid; /* Saved effective group id. */ 1030 int p_refcnt; /* Number of references. */ 1031 }; 1032 1033 /* LP64 version of kinfo_proc. all pointers 1034 * grow when we're dealing with a 64-bit process. 1035 * WARNING - keep in sync with kinfo_proc 1036 */ 1037 struct user32_kinfo_proc { 1038 struct user32_extern_proc kp_proc; /* proc structure */ 1039 struct user32_eproc { 1040 user32_addr_t e_paddr; /* address of proc */ 1041 user32_addr_t e_sess; /* session pointer */ 1042 struct user32_pcred e_pcred; /* process credentials */ 1043 struct _ucred e_ucred; /* current credentials */ 1044 struct user32_vmspace e_vm; /* address space */ 1045 pid_t e_ppid; /* parent process id */ 1046 pid_t e_pgid; /* process group id */ 1047 int e_jobc; /* job control counter */ 1048 dev_t e_tdev; /* controlling tty dev */ 1049 pid_t e_tpgid; /* tty process group id */ 1050 user32_addr_t e_tsess; /* tty session pointer */ 1051 char e_wmesg[WMESGLEN + 1]; /* wchan message */ 1052 segsz_t e_xsize; /* text size */ 1053 short e_xrssize; /* text rss */ 1054 short e_xccount; /* text references */ 1055 short e_xswrss; 1056 int32_t e_flag; 1057 char e_login[COMAPT_MAXLOGNAME]; /* short setlogin() name */ 1058 int32_t e_spare[4]; 1059 } kp_eproc; 1060 }; 1061 struct user64_kinfo_proc { 1062 struct user64_extern_proc kp_proc; /* proc structure */ 1063 struct user64_eproc { 1064 user_addr_t e_paddr; /* address of proc */ 1065 user_addr_t e_sess; /* session pointer */ 1066 struct user64_pcred e_pcred; /* process credentials */ 1067 struct _ucred e_ucred; /* current credentials */ 1068 struct user_vmspace e_vm; /* address space */ 1069 pid_t e_ppid; /* parent process id */ 1070 pid_t e_pgid; /* process group id */ 1071 int e_jobc; /* job control counter */ 1072 dev_t e_tdev; /* controlling tty dev */ 1073 pid_t e_tpgid; /* tty process group id */ 1074 user64_addr_t e_tsess __attribute((aligned(8))); /* tty session pointer */ 1075 char e_wmesg[WMESGLEN + 1]; /* wchan message */ 1076 segsz_t e_xsize; /* text size */ 1077 short e_xrssize; /* text rss */ 1078 short e_xccount; /* text references */ 1079 short e_xswrss; 1080 int32_t e_flag; 1081 char e_login[COMAPT_MAXLOGNAME]; /* short setlogin() name */ 1082 int32_t e_spare[4]; 1083 } kp_eproc; 1084 }; 1085 1086 #endif /* BSD_KERNEL_PRIVATE */ 1087 1088 /* 1089 * KERN_IPC identifiers 1090 */ 1091 #define KIPC_MAXSOCKBUF 1 /* int: max size of a socket buffer */ 1092 #define KIPC_SOCKBUF_WASTE 2 /* int: wastage factor in sockbuf */ 1093 #define KIPC_SOMAXCONN 3 /* int: max length of connection q */ 1094 #define KIPC_MAX_LINKHDR 4 /* int: max length of link header */ 1095 #define KIPC_MAX_PROTOHDR 5 /* int: max length of network header */ 1096 #define KIPC_MAX_HDR 6 /* int: max total length of headers */ 1097 #define KIPC_MAX_DATALEN 7 /* int: max length of data? */ 1098 #define KIPC_MBSTAT 8 /* struct: mbuf usage statistics */ 1099 #define KIPC_NMBCLUSTERS 9 /* int: maximum mbuf clusters */ 1100 #define KIPC_SOQLIMITCOMPAT 10 /* int: socket queue limit */ 1101 1102 /* 1103 * CTL_VM identifiers 1104 */ 1105 #define VM_METER 1 /* struct vmmeter */ 1106 #define VM_LOADAVG 2 /* struct loadavg */ 1107 /* 1108 * Note: "3" was skipped sometime ago and should probably remain unused 1109 * to avoid any new entry from being accepted by older kernels... 1110 */ 1111 #define VM_MACHFACTOR 4 /* struct loadavg with mach factor*/ 1112 #define VM_SWAPUSAGE 5 /* total swap usage */ 1113 #define VM_MAXID 6 /* number of valid vm ids */ 1114 1115 #define CTL_VM_NAMES { \ 1116 { 0, 0 }, \ 1117 { "vmmeter", CTLTYPE_STRUCT }, \ 1118 { "loadavg", CTLTYPE_STRUCT }, \ 1119 { 0, 0 }, /* placeholder for "3" (see comment above) */ \ 1120 { "dummy", CTLTYPE_INT }, \ 1121 { "swapusage", CTLTYPE_STRUCT } \ 1122 } 1123 1124 struct xsw_usage { 1125 u_int64_t xsu_total; 1126 u_int64_t xsu_avail; 1127 u_int64_t xsu_used; 1128 u_int32_t xsu_pagesize; 1129 boolean_t xsu_encrypted; 1130 }; 1131 1132 #ifdef __APPLE_API_PRIVATE 1133 /* Load average structure. Use of fixpt_t assume <sys/types.h> in scope. */ 1134 /* XXX perhaps we should protect fixpt_t, and define it here (or discard it) */ 1135 struct loadavg { 1136 fixpt_t ldavg[3]; 1137 long fscale; 1138 }; 1139 extern struct loadavg averunnable; 1140 #define LSCALE 1000 /* scaling for "fixed point" arithmetic */ 1141 1142 #ifdef BSD_KERNEL_PRIVATE 1143 1144 struct user32_loadavg { 1145 fixpt_t ldavg[3]; 1146 user32_long_t fscale; 1147 }; 1148 1149 struct user64_loadavg { 1150 fixpt_t ldavg[3]; 1151 user64_long_t fscale; 1152 }; 1153 1154 #endif /* BSD_KERNEL_PRIVATE */ 1155 #endif /* __APPLE_API_PRIVATE */ 1156 1157 1158 /* 1159 * CTL_HW identifiers 1160 */ 1161 #define HW_MACHINE 1 /* string: machine class (deprecated: use HW_PRODUCT) */ 1162 #define HW_MODEL 2 /* string: specific machine model (deprecated: use HW_TARGET) */ 1163 #define HW_NCPU 3 /* int: number of cpus */ 1164 #define HW_BYTEORDER 4 /* int: machine byte order */ 1165 #define HW_PHYSMEM 5 /* int: total memory */ 1166 #define HW_USERMEM 6 /* int: non-kernel memory */ 1167 #define HW_PAGESIZE 7 /* int: software page size */ 1168 #define HW_DISKNAMES 8 /* strings: disk drive names */ 1169 #define HW_DISKSTATS 9 /* struct: diskstats[] */ 1170 #define HW_EPOCH 10 /* int: 0 for Legacy, else NewWorld */ 1171 #define HW_FLOATINGPT 11 /* int: has HW floating point? */ 1172 #define HW_MACHINE_ARCH 12 /* string: machine architecture */ 1173 #define HW_VECTORUNIT 13 /* int: has HW vector unit? */ 1174 #define HW_BUS_FREQ 14 /* int: Bus Frequency */ 1175 #define HW_CPU_FREQ 15 /* int: CPU Frequency */ 1176 #define HW_CACHELINE 16 /* int: Cache Line Size in Bytes */ 1177 #define HW_L1ICACHESIZE 17 /* int: L1 I Cache Size in Bytes */ 1178 #define HW_L1DCACHESIZE 18 /* int: L1 D Cache Size in Bytes */ 1179 #define HW_L2SETTINGS 19 /* int: L2 Cache Settings */ 1180 #define HW_L2CACHESIZE 20 /* int: L2 Cache Size in Bytes */ 1181 #define HW_L3SETTINGS 21 /* int: L3 Cache Settings */ 1182 #define HW_L3CACHESIZE 22 /* int: L3 Cache Size in Bytes */ 1183 #define HW_TB_FREQ 23 /* int: Bus Frequency */ 1184 #define HW_MEMSIZE 24 /* uint64_t: physical ram size */ 1185 #define HW_AVAILCPU 25 /* int: number of available CPUs */ 1186 #define HW_TARGET 26 /* string: model identifier */ 1187 #define HW_PRODUCT 27 /* string: product identifier */ 1188 #define HW_MAXID 28 /* number of valid hw ids */ 1189 1190 #define CTL_HW_NAMES { \ 1191 { 0, 0 }, \ 1192 { "machine", CTLTYPE_STRING }, /* Deprecated: use hw.product */ \ 1193 { "model", CTLTYPE_STRING }, /* Deprecated: use hw.target */ \ 1194 { "ncpu", CTLTYPE_INT }, \ 1195 { "byteorder", CTLTYPE_INT }, \ 1196 { "physmem", CTLTYPE_INT }, \ 1197 { "usermem", CTLTYPE_INT }, \ 1198 { "pagesize", CTLTYPE_INT }, \ 1199 { "disknames", CTLTYPE_STRUCT }, \ 1200 { "diskstats", CTLTYPE_STRUCT }, \ 1201 { "epoch", CTLTYPE_INT }, \ 1202 { "floatingpoint", CTLTYPE_INT }, \ 1203 { "machinearch", CTLTYPE_STRING }, \ 1204 { "vectorunit", CTLTYPE_INT }, \ 1205 { "busfrequency", CTLTYPE_INT }, \ 1206 { "cpufrequency", CTLTYPE_INT }, \ 1207 { "cachelinesize", CTLTYPE_INT }, \ 1208 { "l1icachesize", CTLTYPE_INT }, \ 1209 { "l1dcachesize", CTLTYPE_INT }, \ 1210 { "l2settings", CTLTYPE_INT }, \ 1211 { "l2cachesize", CTLTYPE_INT }, \ 1212 { "l3settings", CTLTYPE_INT }, \ 1213 { "l3cachesize", CTLTYPE_INT }, \ 1214 { "tbfrequency", CTLTYPE_INT }, \ 1215 { "memsize", CTLTYPE_QUAD }, \ 1216 { "availcpu", CTLTYPE_INT }, \ 1217 { "target", CTLTYPE_STRING }, \ 1218 { "product", CTLTYPE_STRING }, \ 1219 } 1220 1221 /* 1222 * XXX This information should be moved to the man page. 1223 * 1224 * These are the support HW selectors for sysctlbyname. Parameters that are byte counts or frequencies are 64 bit numbers. 1225 * All other parameters are 32 bit numbers. 1226 * 1227 * hw.memsize - The number of bytes of physical memory in the system. 1228 * 1229 * hw.ncpu - The maximum number of processors that could be available this boot. 1230 * Use this value for sizing of static per processor arrays; i.e. processor load statistics. 1231 * 1232 * hw.activecpu - The number of processors currently available for executing threads. 1233 * Use this number to determine the number threads to create in SMP aware applications. 1234 * This number can change when power management modes are changed. 1235 * 1236 * hw.physicalcpu - The number of physical processors available in the current power management mode. 1237 * hw.physicalcpu_max - The maximum number of physical processors that could be available this boot 1238 * 1239 * hw.logicalcpu - The number of logical processors available in the current power management mode. 1240 * hw.logicalcpu_max - The maximum number of logical processors that could be available this boot 1241 * 1242 * hw.tbfrequency - This gives the time base frequency used by the OS and is the basis of all timing services. 1243 * In general is is better to use mach's or higher level timing services, but this value 1244 * is needed to convert the PPC Time Base registers to real time. 1245 * 1246 * hw.cpufrequency - These values provide the current, min and max cpu frequency. The min and max are for 1247 * hw.cpufrequency_max - all power management modes. The current frequency is the max frequency in the current mode. 1248 * hw.cpufrequency_min - All frequencies are in Hz. 1249 * 1250 * hw.busfrequency - These values provide the current, min and max bus frequency. The min and max are for 1251 * hw.busfrequency_max - all power management modes. The current frequency is the max frequency in the current mode. 1252 * hw.busfrequency_min - All frequencies are in Hz. 1253 * 1254 * hw.cputype - These values provide the mach-o cpu type and subtype. A complete list is in <mach/machine.h> 1255 * hw.cpusubtype - These values should be used to determine what processor family the running cpu is from so that 1256 * the best binary can be chosen, or the best dynamic code generated. They should not be used 1257 * to determine if a given processor feature is available. 1258 * hw.cputhreadtype - This value will be present if the processor supports threads. Like hw.cpusubtype this selector 1259 * should not be used to infer features, and only used to name the processors thread architecture. 1260 * The values are defined in <mach/machine.h> 1261 * 1262 * hw.byteorder - Gives the byte order of the processor. 4321 for big endian, 1234 for little. 1263 * 1264 * hw.pagesize - Gives the size in bytes of the pages used by the processor and VM system. 1265 * 1266 * hw.cachelinesize - Gives the size in bytes of the processor's cache lines. 1267 * This value should be use to control the strides of loops that use cache control instructions 1268 * like dcbz, dcbt or dcbst. 1269 * 1270 * hw.l1dcachesize - These values provide the size in bytes of the L1, L2 and L3 caches. If a cache is not present 1271 * hw.l1icachesize - then the selector will return and error. 1272 * hw.l2cachesize - 1273 * hw.l3cachesize - 1274 * 1275 * hw.packages - Gives the number of processor packages. 1276 * 1277 * These are the selectors for optional processor features for specific processors. Selectors that return errors are not support 1278 * on the system. Supported features will return 1 if they are recommended or 0 if they are supported but are not expected to help . 1279 * performance. Future versions of these selectors may return larger values as necessary so it is best to test for non zero. 1280 * 1281 * For PowerPC: 1282 * 1283 * hw.optional.floatingpoint - Floating Point Instructions 1284 * hw.optional.altivec - AltiVec Instructions 1285 * hw.optional.graphicsops - Graphics Operations 1286 * hw.optional.64bitops - 64-bit Instructions 1287 * hw.optional.fsqrt - HW Floating Point Square Root Instruction 1288 * hw.optional.stfiwx - Store Floating Point as Integer Word Indexed Instructions 1289 * hw.optional.dcba - Data Cache Block Allocate Instruction 1290 * hw.optional.datastreams - Data Streams Instructions 1291 * hw.optional.dcbtstreams - Data Cache Block Touch Steams Instruction Form 1292 * 1293 * For x86 Architecture: 1294 * 1295 * hw.optional.floatingpoint - Floating Point Instructions 1296 * hw.optional.mmx - Original MMX vector instructions 1297 * hw.optional.sse - Streaming SIMD Extensions 1298 * hw.optional.sse2 - Streaming SIMD Extensions 2 1299 * hw.optional.sse3 - Streaming SIMD Extensions 3 1300 * hw.optional.supplementalsse3 - Supplemental Streaming SIMD Extensions 3 1301 * hw.optional.x86_64 - 64-bit support 1302 */ 1303 1304 1305 /* 1306 * CTL_USER definitions 1307 */ 1308 #define USER_CS_PATH 1 /* string: _CS_PATH */ 1309 #define USER_BC_BASE_MAX 2 /* int: BC_BASE_MAX */ 1310 #define USER_BC_DIM_MAX 3 /* int: BC_DIM_MAX */ 1311 #define USER_BC_SCALE_MAX 4 /* int: BC_SCALE_MAX */ 1312 #define USER_BC_STRING_MAX 5 /* int: BC_STRING_MAX */ 1313 #define USER_COLL_WEIGHTS_MAX 6 /* int: COLL_WEIGHTS_MAX */ 1314 #define USER_EXPR_NEST_MAX 7 /* int: EXPR_NEST_MAX */ 1315 #define USER_LINE_MAX 8 /* int: LINE_MAX */ 1316 #define USER_RE_DUP_MAX 9 /* int: RE_DUP_MAX */ 1317 #define USER_POSIX2_VERSION 10 /* int: POSIX2_VERSION */ 1318 #define USER_POSIX2_C_BIND 11 /* int: POSIX2_C_BIND */ 1319 #define USER_POSIX2_C_DEV 12 /* int: POSIX2_C_DEV */ 1320 #define USER_POSIX2_CHAR_TERM 13 /* int: POSIX2_CHAR_TERM */ 1321 #define USER_POSIX2_FORT_DEV 14 /* int: POSIX2_FORT_DEV */ 1322 #define USER_POSIX2_FORT_RUN 15 /* int: POSIX2_FORT_RUN */ 1323 #define USER_POSIX2_LOCALEDEF 16 /* int: POSIX2_LOCALEDEF */ 1324 #define USER_POSIX2_SW_DEV 17 /* int: POSIX2_SW_DEV */ 1325 #define USER_POSIX2_UPE 18 /* int: POSIX2_UPE */ 1326 #define USER_STREAM_MAX 19 /* int: POSIX2_STREAM_MAX */ 1327 #define USER_TZNAME_MAX 20 /* int: POSIX2_TZNAME_MAX */ 1328 #define USER_MAXID 21 /* number of valid user ids */ 1329 1330 #define CTL_USER_NAMES { \ 1331 { 0, 0 }, \ 1332 { "cs_path", CTLTYPE_STRING }, \ 1333 { "bc_base_max", CTLTYPE_INT }, \ 1334 { "bc_dim_max", CTLTYPE_INT }, \ 1335 { "bc_scale_max", CTLTYPE_INT }, \ 1336 { "bc_string_max", CTLTYPE_INT }, \ 1337 { "coll_weights_max", CTLTYPE_INT }, \ 1338 { "expr_nest_max", CTLTYPE_INT }, \ 1339 { "line_max", CTLTYPE_INT }, \ 1340 { "re_dup_max", CTLTYPE_INT }, \ 1341 { "posix2_version", CTLTYPE_INT }, \ 1342 { "posix2_c_bind", CTLTYPE_INT }, \ 1343 { "posix2_c_dev", CTLTYPE_INT }, \ 1344 { "posix2_char_term", CTLTYPE_INT }, \ 1345 { "posix2_fort_dev", CTLTYPE_INT }, \ 1346 { "posix2_fort_run", CTLTYPE_INT }, \ 1347 { "posix2_localedef", CTLTYPE_INT }, \ 1348 { "posix2_sw_dev", CTLTYPE_INT }, \ 1349 { "posix2_upe", CTLTYPE_INT }, \ 1350 { "stream_max", CTLTYPE_INT }, \ 1351 { "tzname_max", CTLTYPE_INT } \ 1352 } 1353 1354 1355 1356 /* 1357 * CTL_DEBUG definitions 1358 * 1359 * Second level identifier specifies which debug variable. 1360 * Third level identifier specifies which stucture component. 1361 */ 1362 #define CTL_DEBUG_NAME 0 /* string: variable name */ 1363 #define CTL_DEBUG_VALUE 1 /* int: variable value */ 1364 #define CTL_DEBUG_MAXID 20 1365 1366 1367 #if (CTL_MAXID != 9) || (KERN_MAXID != 72) || (VM_MAXID != 6) || (HW_MAXID != 28) || (USER_MAXID != 21) || (CTL_DEBUG_MAXID != 20) 1368 #error Use the SYSCTL_*() macros and OID_AUTO instead! 1369 #endif 1370 1371 1372 #ifdef KERNEL 1373 1374 #ifdef BSD_KERNEL_PRIVATE 1375 extern char machine[]; 1376 extern char osrelease[]; 1377 extern char ostype[]; 1378 extern char osversion[]; 1379 extern char osproductversion[]; 1380 extern char osbuild_config[]; 1381 #if defined(XNU_TARGET_OS_BRIDGE) 1382 /* 1383 * 15 characters at maximum so both the productversion 1384 * and the build version can fit in the panic header 1385 * osversion field with the formatting requirements. 1386 */ 1387 #define MACOS_VERS_LEN 15 1388 1389 extern char macosproductversion[]; 1390 extern char macosversion[]; 1391 #endif 1392 1393 void sysctl_mib_init(void); 1394 void hvg_bsd_init(void); 1395 1396 #endif /* BSD_KERNEL_PRIVATE */ 1397 #else /* !KERNEL */ 1398 1399 __BEGIN_DECLS 1400 int sysctl(int *, u_int, void *, size_t *, void *, size_t); 1401 int sysctlbyname(const char *, void *, size_t *, void *, size_t); 1402 int sysctlnametomib(const char *, int *, size_t *); 1403 __END_DECLS 1404 1405 #endif /* KERNEL */ 1406 1407 1408 #endif /* SYSCTL_DEF_ENABLED */ 1409 1410 1411 #endif /* !_SYS_SYSCTL_H_ */