1/*- 2 * Copyright (c) 1989, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * Mike Karels at Berkeley Software Design, Inc. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 4. Neither the name of the University nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 * 32 * @(#)sysctl.h 8.1 (Berkeley) 6/2/93 33 * $FreeBSD: stable/11/sys/sys/sysctl.h 354762 2019-11-16 00:33:02Z scottl $ 34 */ 35 36#ifndef _SYS_SYSCTL_H_ 37#define _SYS_SYSCTL_H_ 38 39#include <sys/queue.h> 40 41struct thread; 42/* 43 * Definitions for sysctl call. The sysctl call uses a hierarchical name 44 * for objects that can be examined or modified. The name is expressed as 45 * a sequence of integers. Like a file path name, the meaning of each 46 * component depends on its place in the hierarchy. The top-level and kern 47 * identifiers are defined here, and other identifiers are defined in the 48 * respective subsystem header files. 49 */ 50 51#define CTL_MAXNAME 24 /* largest number of components supported */ 52 53/* 54 * Each subsystem defined by sysctl defines a list of variables 55 * for that subsystem. Each name is either a node with further 56 * levels defined below it, or it is a leaf of some particular 57 * type given below. Each sysctl level defines a set of name/type 58 * pairs to be used by sysctl(8) in manipulating the subsystem. 59 */ 60struct ctlname { 61 char *ctl_name; /* subsystem name */ 62 int ctl_type; /* type of name */ 63}; 64 65#define CTLTYPE 0xf /* mask for the type */ 66#define CTLTYPE_NODE 1 /* name is a node */ 67#define CTLTYPE_INT 2 /* name describes an integer */ 68#define CTLTYPE_STRING 3 /* name describes a string */ 69#define CTLTYPE_S64 4 /* name describes a signed 64-bit number */ 70#define CTLTYPE_OPAQUE 5 /* name describes a structure */ 71#define CTLTYPE_STRUCT CTLTYPE_OPAQUE /* name describes a structure */ 72#define CTLTYPE_UINT 6 /* name describes an unsigned integer */ 73#define CTLTYPE_LONG 7 /* name describes a long */ 74#define CTLTYPE_ULONG 8 /* name describes an unsigned long */ 75#define CTLTYPE_U64 9 /* name describes an unsigned 64-bit number */ 76#define CTLTYPE_U8 0xa /* name describes an unsigned 8-bit number */ 77#define CTLTYPE_U16 0xb /* name describes an unsigned 16-bit number */ 78#define CTLTYPE_S8 0xc /* name describes a signed 8-bit number */ 79#define CTLTYPE_S16 0xd /* name describes a signed 16-bit number */ 80#define CTLTYPE_S32 0xe /* name describes a signed 32-bit number */ 81#define CTLTYPE_U32 0xf /* name describes an unsigned 32-bit number */ 82 83#define CTLFLAG_RD 0x80000000 /* Allow reads of variable */ 84#define CTLFLAG_WR 0x40000000 /* Allow writes to the variable */ 85#define CTLFLAG_RW (CTLFLAG_RD|CTLFLAG_WR) 86#define CTLFLAG_DORMANT 0x20000000 /* This sysctl is not active yet */ 87#define CTLFLAG_ANYBODY 0x10000000 /* All users can set this var */ 88#define CTLFLAG_SECURE 0x08000000 /* Permit set only if securelevel<=0 */ 89#define CTLFLAG_PRISON 0x04000000 /* Prisoned roots can fiddle */ 90#define CTLFLAG_DYN 0x02000000 /* Dynamic oid - can be freed */ 91#define CTLFLAG_SKIP 0x01000000 /* Skip this sysctl when listing */ 92#define CTLMASK_SECURE 0x00F00000 /* Secure level */ 93#define CTLFLAG_TUN 0x00080000 /* Default value is loaded from getenv() */ 94#define CTLFLAG_RDTUN (CTLFLAG_RD|CTLFLAG_TUN) 95#define CTLFLAG_RWTUN (CTLFLAG_RW|CTLFLAG_TUN) 96#define CTLFLAG_MPSAFE 0x00040000 /* Handler is MP safe */ 97#define CTLFLAG_VNET 0x00020000 /* Prisons with vnet can fiddle */ 98#define CTLFLAG_DYING 0x00010000 /* Oid is being removed */ 99#define CTLFLAG_CAPRD 0x00008000 /* Can be read in capability mode */ 100#define CTLFLAG_CAPWR 0x00004000 /* Can be written in capability mode */ 101#define CTLFLAG_STATS 0x00002000 /* Statistics, not a tuneable */ 102#define CTLFLAG_NOFETCH 0x00001000 /* Don't fetch tunable from getenv() */ 103#define CTLFLAG_CAPRW (CTLFLAG_CAPRD|CTLFLAG_CAPWR) 104 105/* 106 * Secure level. Note that CTLFLAG_SECURE == CTLFLAG_SECURE1. 107 * 108 * Secure when the securelevel is raised to at least N. 109 */ 110#define CTLSHIFT_SECURE 20 111#define CTLFLAG_SECURE1 (CTLFLAG_SECURE | (0 << CTLSHIFT_SECURE)) 112#define CTLFLAG_SECURE2 (CTLFLAG_SECURE | (1 << CTLSHIFT_SECURE)) 113#define CTLFLAG_SECURE3 (CTLFLAG_SECURE | (2 << CTLSHIFT_SECURE)) 114 115/* 116 * USE THIS instead of a hardwired number from the categories below 117 * to get dynamically assigned sysctl entries using the linker-set 118 * technology. This is the way nearly all new sysctl variables should 119 * be implemented. 120 * e.g. SYSCTL_INT(_parent, OID_AUTO, name, CTLFLAG_RW, &variable, 0, ""); 121 */ 122#define OID_AUTO (-1) 123 124/* 125 * The starting number for dynamically-assigned entries. WARNING! 126 * ALL static sysctl entries should have numbers LESS than this! 127 */ 128#define CTL_AUTO_START 0x100 129 130#ifdef _KERNEL 131#include <sys/linker_set.h> 132 133#ifdef KLD_MODULE 134/* XXX allow overspecification of type in external kernel modules */ 135#define SYSCTL_CT_ASSERT_MASK CTLTYPE 136#else 137#define SYSCTL_CT_ASSERT_MASK 0 138#endif 139 140#define SYSCTL_HANDLER_ARGS struct sysctl_oid *oidp, void *arg1, \ 141 intmax_t arg2, struct sysctl_req *req 142 143/* definitions for sysctl_req 'lock' member */ 144#define REQ_UNWIRED 1 145#define REQ_WIRED 2 146 147/* definitions for sysctl_req 'flags' member */ 148#if defined(__amd64__) || defined(__powerpc64__) ||\ 149 (defined(__mips__) && defined(__mips_n64)) 150#define SCTL_MASK32 1 /* 32 bit emulation */ 151#endif 152 153/* 154 * This describes the access space for a sysctl request. This is needed 155 * so that we can use the interface from the kernel or from user-space. 156 */ 157struct sysctl_req { 158 struct thread *td; /* used for access checking */ 159 int lock; /* wiring state */ 160 void *oldptr; 161 size_t oldlen; 162 size_t oldidx; 163 int (*oldfunc)(struct sysctl_req *, const void *, size_t); 164 void *newptr; 165 size_t newlen; 166 size_t newidx; 167 int (*newfunc)(struct sysctl_req *, void *, size_t); 168 size_t validlen; 169 int flags; 170}; 171 172SLIST_HEAD(sysctl_oid_list, sysctl_oid); 173 174/* 175 * This describes one "oid" in the MIB tree. Potentially more nodes can 176 * be hidden behind it, expanded by the handler. 177 */ 178struct sysctl_oid { 179 struct sysctl_oid_list oid_children; 180 struct sysctl_oid_list *oid_parent; 181 SLIST_ENTRY(sysctl_oid) oid_link; 182 int oid_number; 183 u_int oid_kind; 184 void *oid_arg1; 185 intmax_t oid_arg2; 186 const char *oid_name; 187 int (*oid_handler)(SYSCTL_HANDLER_ARGS); 188 const char *oid_fmt; 189 int oid_refcnt; 190 u_int oid_running; 191 const char *oid_descr; 192}; 193 194#define SYSCTL_IN(r, p, l) (r->newfunc)(r, p, l) 195#define SYSCTL_OUT(r, p, l) (r->oldfunc)(r, p, l) 196#define SYSCTL_OUT_STR(r, p) (r->oldfunc)(r, p, strlen(p) + 1) 197 198int sysctl_handle_bool(SYSCTL_HANDLER_ARGS); 199int sysctl_handle_8(SYSCTL_HANDLER_ARGS); 200int sysctl_handle_16(SYSCTL_HANDLER_ARGS); 201int sysctl_handle_32(SYSCTL_HANDLER_ARGS); 202int sysctl_handle_64(SYSCTL_HANDLER_ARGS); 203int sysctl_handle_int(SYSCTL_HANDLER_ARGS); 204int sysctl_msec_to_ticks(SYSCTL_HANDLER_ARGS); 205int sysctl_handle_long(SYSCTL_HANDLER_ARGS); 206int sysctl_handle_string(SYSCTL_HANDLER_ARGS); 207int sysctl_handle_opaque(SYSCTL_HANDLER_ARGS); 208int sysctl_handle_counter_u64(SYSCTL_HANDLER_ARGS); 209int sysctl_handle_counter_u64_array(SYSCTL_HANDLER_ARGS); 210 211int sysctl_handle_uma_zone_max(SYSCTL_HANDLER_ARGS); 212int sysctl_handle_uma_zone_cur(SYSCTL_HANDLER_ARGS); 213 214int sysctl_sec_to_timeval(SYSCTL_HANDLER_ARGS); 215 216int sysctl_dpcpu_int(SYSCTL_HANDLER_ARGS); 217int sysctl_dpcpu_long(SYSCTL_HANDLER_ARGS); 218int sysctl_dpcpu_quad(SYSCTL_HANDLER_ARGS); 219 220/* 221 * These functions are used to add/remove an oid from the mib. 222 */ 223void sysctl_register_oid(struct sysctl_oid *oidp); 224void sysctl_register_disabled_oid(struct sysctl_oid *oidp); 225void sysctl_enable_oid(struct sysctl_oid *oidp); 226void sysctl_unregister_oid(struct sysctl_oid *oidp); 227 228/* Declare a static oid to allow child oids to be added to it. */ 229#define SYSCTL_DECL(name) \ 230 extern struct sysctl_oid sysctl__##name 231 232/* Hide these in macros. */ 233#define SYSCTL_CHILDREN(oid_ptr) (&(oid_ptr)->oid_children) 234#define SYSCTL_PARENT(oid_ptr) \ 235 (((oid_ptr)->oid_parent != &sysctl__children) ? \ 236 __containerof((oid_ptr)->oid_parent, struct sysctl_oid, \ 237 oid_children) : (struct sysctl_oid *)NULL) 238#define SYSCTL_STATIC_CHILDREN(oid_name) (&sysctl__##oid_name.oid_children) 239 240/* === Structs and macros related to context handling. === */ 241 242/* All dynamically created sysctls can be tracked in a context list. */ 243struct sysctl_ctx_entry { 244 struct sysctl_oid *entry; 245 TAILQ_ENTRY(sysctl_ctx_entry) link; 246}; 247 248TAILQ_HEAD(sysctl_ctx_list, sysctl_ctx_entry); 249 250#define SYSCTL_NODE_CHILDREN(parent, name) \ 251 sysctl__##parent##_##name.oid_children 252 253#ifndef NO_SYSCTL_DESCR 254#define __DESCR(d) d 255#else 256#define __DESCR(d) "" 257#endif 258 259/* This macro is only for internal use */ 260#define SYSCTL_OID_RAW(id, parent_child_head, nbr, name, kind, a1, a2, handler, fmt, descr) \ 261 struct sysctl_oid id = { \ 262 .oid_parent = (parent_child_head), \ 263 .oid_children = SLIST_HEAD_INITIALIZER(&id.oid_children), \ 264 .oid_number = (nbr), \ 265 .oid_kind = (kind), \ 266 .oid_arg1 = (a1), \ 267 .oid_arg2 = (a2), \ 268 .oid_name = (name), \ 269 .oid_handler = (handler), \ 270 .oid_fmt = (fmt), \ 271 .oid_descr = __DESCR(descr) \ 272 }; \ 273 DATA_SET(sysctl_set, id) 274 275/* This constructs a static "raw" MIB oid. */ 276#define SYSCTL_OID(parent, nbr, name, kind, a1, a2, handler, fmt, descr) \ 277 static SYSCTL_OID_RAW(sysctl__##parent##_##name, \ 278 SYSCTL_CHILDREN(&sysctl__##parent), \ 279 nbr, #name, kind, a1, a2, handler, fmt, descr) 280 281/* This constructs a global "raw" MIB oid. */ 282#define SYSCTL_OID_GLOBAL(parent, nbr, name, kind, a1, a2, handler, fmt, descr) \ 283 SYSCTL_OID_RAW(sysctl__##parent##_##name, \ 284 SYSCTL_CHILDREN(&sysctl__##parent), \ 285 nbr, #name, kind, a1, a2, handler, fmt, descr) 286 287#define SYSCTL_ADD_OID(ctx, parent, nbr, name, kind, a1, a2, handler, fmt, descr) \ 288 sysctl_add_oid(ctx, parent, nbr, name, kind, a1, a2, handler, fmt, __DESCR(descr)) 289 290/* This constructs a root node from which other nodes can hang. */ 291#define SYSCTL_ROOT_NODE(nbr, name, access, handler, descr) \ 292 SYSCTL_OID_RAW(sysctl___##name, &sysctl__children, \ 293 nbr, #name, CTLTYPE_NODE|(access), NULL, 0, \ 294 handler, "N", descr); \ 295 CTASSERT(((access) & CTLTYPE) == 0 || \ 296 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_NODE) 297 298/* This constructs a node from which other oids can hang. */ 299#define SYSCTL_NODE(parent, nbr, name, access, handler, descr) \ 300 SYSCTL_OID_GLOBAL(parent, nbr, name, CTLTYPE_NODE|(access), \ 301 NULL, 0, handler, "N", descr); \ 302 CTASSERT(((access) & CTLTYPE) == 0 || \ 303 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_NODE) 304 305#define SYSCTL_ADD_NODE(ctx, parent, nbr, name, access, handler, descr) \ 306({ \ 307 CTASSERT(((access) & CTLTYPE) == 0 || \ 308 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_NODE); \ 309 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_NODE|(access), \ 310 NULL, 0, handler, "N", __DESCR(descr)); \ 311}) 312 313#define SYSCTL_ADD_ROOT_NODE(ctx, nbr, name, access, handler, descr) \ 314({ \ 315 CTASSERT(((access) & CTLTYPE) == 0 || \ 316 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_NODE); \ 317 sysctl_add_oid(ctx, &sysctl__children, nbr, name, \ 318 CTLTYPE_NODE|(access), \ 319 NULL, 0, handler, "N", __DESCR(descr)); \ 320}) 321 322/* Oid for a string. len can be 0 to indicate '\0' termination. */ 323#define SYSCTL_STRING(parent, nbr, name, access, arg, len, descr) \ 324 SYSCTL_OID(parent, nbr, name, CTLTYPE_STRING|(access), \ 325 arg, len, sysctl_handle_string, "A", descr); \ 326 CTASSERT(((access) & CTLTYPE) == 0 || \ 327 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_STRING) 328 329#define SYSCTL_ADD_STRING(ctx, parent, nbr, name, access, arg, len, descr) \ 330({ \ 331 char *__arg = (arg); \ 332 CTASSERT(((access) & CTLTYPE) == 0 || \ 333 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_STRING); \ 334 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_STRING|(access), \ 335 __arg, len, sysctl_handle_string, "A", __DESCR(descr)); \ 336}) 337 338/* Oid for a constant '\0' terminated string. */ 339#define SYSCTL_CONST_STRING(parent, nbr, name, access, arg, descr) \ 340 SYSCTL_OID(parent, nbr, name, CTLTYPE_STRING|(access), \ 341 __DECONST(char *, arg), 0, sysctl_handle_string, "A", descr); \ 342 CTASSERT(!(access & CTLFLAG_WR)); \ 343 CTASSERT(((access) & CTLTYPE) == 0 || \ 344 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_STRING) 345 346#define SYSCTL_ADD_CONST_STRING(ctx, parent, nbr, name, access, arg, descr) \ 347({ \ 348 char *__arg = __DECONST(char *, arg); \ 349 CTASSERT(!(access & CTLFLAG_WR)); \ 350 CTASSERT(((access) & CTLTYPE) == 0 || \ 351 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_STRING); \ 352 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_STRING|(access), \ 353 __arg, 0, sysctl_handle_string, "A", __DESCR(descr)); \ 354}) 355 356/* Oid for a bool. If ptr is NULL, val is returned. */ 357#define SYSCTL_NULL_BOOL_PTR ((bool *)NULL) 358#define SYSCTL_BOOL(parent, nbr, name, access, ptr, val, descr) \ 359 SYSCTL_OID(parent, nbr, name, \ 360 CTLTYPE_U8 | CTLFLAG_MPSAFE | (access), \ 361 ptr, val, sysctl_handle_bool, "CU", descr); \ 362 CTASSERT(((access) & CTLTYPE) == 0 && \ 363 sizeof(bool) == sizeof(*(ptr))) 364 365#define SYSCTL_ADD_BOOL(ctx, parent, nbr, name, access, ptr, val, descr) \ 366({ \ 367 bool *__ptr = (ptr); \ 368 CTASSERT(((access) & CTLTYPE) == 0); \ 369 sysctl_add_oid(ctx, parent, nbr, name, \ 370 CTLTYPE_U8 | CTLFLAG_MPSAFE | (access), \ 371 __ptr, val, sysctl_handle_bool, "CU", __DESCR(descr)); \ 372}) 373 374/* Oid for a signed 8-bit int. If ptr is NULL, val is returned. */ 375#define SYSCTL_NULL_S8_PTR ((int8_t *)NULL) 376#define SYSCTL_S8(parent, nbr, name, access, ptr, val, descr) \ 377 SYSCTL_OID(parent, nbr, name, \ 378 CTLTYPE_S8 | CTLFLAG_MPSAFE | (access), \ 379 ptr, val, sysctl_handle_8, "C", descr); \ 380 CTASSERT((((access) & CTLTYPE) == 0 || \ 381 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S8) && \ 382 sizeof(int8_t) == sizeof(*(ptr))) 383 384#define SYSCTL_ADD_S8(ctx, parent, nbr, name, access, ptr, val, descr) \ 385({ \ 386 int8_t *__ptr = (ptr); \ 387 CTASSERT(((access) & CTLTYPE) == 0 || \ 388 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S8); \ 389 sysctl_add_oid(ctx, parent, nbr, name, \ 390 CTLTYPE_S8 | CTLFLAG_MPSAFE | (access), \ 391 __ptr, val, sysctl_handle_8, "C", __DESCR(descr)); \ 392}) 393 394/* Oid for an unsigned 8-bit int. If ptr is NULL, val is returned. */ 395#define SYSCTL_NULL_U8_PTR ((uint8_t *)NULL) 396#define SYSCTL_U8(parent, nbr, name, access, ptr, val, descr) \ 397 SYSCTL_OID(parent, nbr, name, \ 398 CTLTYPE_U8 | CTLFLAG_MPSAFE | (access), \ 399 ptr, val, sysctl_handle_8, "CU", descr); \ 400 CTASSERT((((access) & CTLTYPE) == 0 || \ 401 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U8) && \ 402 sizeof(uint8_t) == sizeof(*(ptr))) 403 404#define SYSCTL_ADD_U8(ctx, parent, nbr, name, access, ptr, val, descr) \ 405({ \ 406 uint8_t *__ptr = (ptr); \ 407 CTASSERT(((access) & CTLTYPE) == 0 || \ 408 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U8); \ 409 sysctl_add_oid(ctx, parent, nbr, name, \ 410 CTLTYPE_U8 | CTLFLAG_MPSAFE | (access), \ 411 __ptr, val, sysctl_handle_8, "CU", __DESCR(descr)); \ 412}) 413 414/* Oid for a signed 16-bit int. If ptr is NULL, val is returned. */ 415#define SYSCTL_NULL_S16_PTR ((int16_t *)NULL) 416#define SYSCTL_S16(parent, nbr, name, access, ptr, val, descr) \ 417 SYSCTL_OID(parent, nbr, name, \ 418 CTLTYPE_S16 | CTLFLAG_MPSAFE | (access), \ 419 ptr, val, sysctl_handle_16, "S", descr); \ 420 CTASSERT((((access) & CTLTYPE) == 0 || \ 421 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S16) && \ 422 sizeof(int16_t) == sizeof(*(ptr))) 423 424#define SYSCTL_ADD_S16(ctx, parent, nbr, name, access, ptr, val, descr) \ 425({ \ 426 int16_t *__ptr = (ptr); \ 427 CTASSERT(((access) & CTLTYPE) == 0 || \ 428 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S16); \ 429 sysctl_add_oid(ctx, parent, nbr, name, \ 430 CTLTYPE_S16 | CTLFLAG_MPSAFE | (access), \ 431 __ptr, val, sysctl_handle_16, "S", __DESCR(descr)); \ 432}) 433 434/* Oid for an unsigned 16-bit int. If ptr is NULL, val is returned. */ 435#define SYSCTL_NULL_U16_PTR ((uint16_t *)NULL) 436#define SYSCTL_U16(parent, nbr, name, access, ptr, val, descr) \ 437 SYSCTL_OID(parent, nbr, name, \ 438 CTLTYPE_U16 | CTLFLAG_MPSAFE | (access), \ 439 ptr, val, sysctl_handle_16, "SU", descr); \ 440 CTASSERT((((access) & CTLTYPE) == 0 || \ 441 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U16) && \ 442 sizeof(uint16_t) == sizeof(*(ptr))) 443 444#define SYSCTL_ADD_U16(ctx, parent, nbr, name, access, ptr, val, descr) \ 445({ \ 446 uint16_t *__ptr = (ptr); \ 447 CTASSERT(((access) & CTLTYPE) == 0 || \ 448 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U16); \ 449 sysctl_add_oid(ctx, parent, nbr, name, \ 450 CTLTYPE_U16 | CTLFLAG_MPSAFE | (access), \ 451 __ptr, val, sysctl_handle_16, "SU", __DESCR(descr)); \ 452}) 453 454/* Oid for a signed 32-bit int. If ptr is NULL, val is returned. */ 455#define SYSCTL_NULL_S32_PTR ((int32_t *)NULL) 456#define SYSCTL_S32(parent, nbr, name, access, ptr, val, descr) \ 457 SYSCTL_OID(parent, nbr, name, \ 458 CTLTYPE_S32 | CTLFLAG_MPSAFE | (access), \ 459 ptr, val, sysctl_handle_32, "I", descr); \ 460 CTASSERT((((access) & CTLTYPE) == 0 || \ 461 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S32) && \ 462 sizeof(int32_t) == sizeof(*(ptr))) 463 464#define SYSCTL_ADD_S32(ctx, parent, nbr, name, access, ptr, val, descr) \ 465({ \ 466 int32_t *__ptr = (ptr); \ 467 CTASSERT(((access) & CTLTYPE) == 0 || \ 468 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S32); \ 469 sysctl_add_oid(ctx, parent, nbr, name, \ 470 CTLTYPE_S32 | CTLFLAG_MPSAFE | (access), \ 471 __ptr, val, sysctl_handle_32, "I", __DESCR(descr)); \ 472}) 473 474/* Oid for an unsigned 32-bit int. If ptr is NULL, val is returned. */ 475#define SYSCTL_NULL_U32_PTR ((uint32_t *)NULL) 476#define SYSCTL_U32(parent, nbr, name, access, ptr, val, descr) \ 477 SYSCTL_OID(parent, nbr, name, \ 478 CTLTYPE_U32 | CTLFLAG_MPSAFE | (access), \ 479 ptr, val, sysctl_handle_32, "IU", descr); \ 480 CTASSERT((((access) & CTLTYPE) == 0 || \ 481 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U32) && \ 482 sizeof(uint32_t) == sizeof(*(ptr))) 483 484#define SYSCTL_ADD_U32(ctx, parent, nbr, name, access, ptr, val, descr) \ 485({ \ 486 uint32_t *__ptr = (ptr); \ 487 CTASSERT(((access) & CTLTYPE) == 0 || \ 488 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U32); \ 489 sysctl_add_oid(ctx, parent, nbr, name, \ 490 CTLTYPE_U32 | CTLFLAG_MPSAFE | (access), \ 491 __ptr, val, sysctl_handle_32, "IU", __DESCR(descr)); \ 492}) 493 494/* Oid for a signed 64-bit int. If ptr is NULL, val is returned. */ 495#define SYSCTL_NULL_S64_PTR ((int64_t *)NULL) 496#define SYSCTL_S64(parent, nbr, name, access, ptr, val, descr) \ 497 SYSCTL_OID(parent, nbr, name, \ 498 CTLTYPE_S64 | CTLFLAG_MPSAFE | (access), \ 499 ptr, val, sysctl_handle_64, "Q", descr); \ 500 CTASSERT((((access) & CTLTYPE) == 0 || \ 501 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64) && \ 502 sizeof(int64_t) == sizeof(*(ptr))) 503 504#define SYSCTL_ADD_S64(ctx, parent, nbr, name, access, ptr, val, descr) \ 505({ \ 506 int64_t *__ptr = (ptr); \ 507 CTASSERT(((access) & CTLTYPE) == 0 || \ 508 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64); \ 509 sysctl_add_oid(ctx, parent, nbr, name, \ 510 CTLTYPE_S64 | CTLFLAG_MPSAFE | (access), \ 511 __ptr, val, sysctl_handle_64, "Q", __DESCR(descr)); \ 512}) 513 514/* Oid for an unsigned 64-bit int. If ptr is NULL, val is returned. */ 515#define SYSCTL_NULL_U64_PTR ((uint64_t *)NULL) 516#define SYSCTL_U64(parent, nbr, name, access, ptr, val, descr) \ 517 SYSCTL_OID(parent, nbr, name, \ 518 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \ 519 ptr, val, sysctl_handle_64, "QU", descr); \ 520 CTASSERT((((access) & CTLTYPE) == 0 || \ 521 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64) && \ 522 sizeof(uint64_t) == sizeof(*(ptr))) 523 524#define SYSCTL_ADD_U64(ctx, parent, nbr, name, access, ptr, val, descr) \ 525({ \ 526 uint64_t *__ptr = (ptr); \ 527 CTASSERT(((access) & CTLTYPE) == 0 || \ 528 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64); \ 529 sysctl_add_oid(ctx, parent, nbr, name, \ 530 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \ 531 __ptr, val, sysctl_handle_64, "QU", __DESCR(descr)); \ 532}) 533 534/* Oid for an int. If ptr is SYSCTL_NULL_INT_PTR, val is returned. */ 535#define SYSCTL_NULL_INT_PTR ((int *)NULL) 536#define SYSCTL_INT(parent, nbr, name, access, ptr, val, descr) \ 537 SYSCTL_OID(parent, nbr, name, \ 538 CTLTYPE_INT | CTLFLAG_MPSAFE | (access), \ 539 ptr, val, sysctl_handle_int, "I", descr); \ 540 CTASSERT((((access) & CTLTYPE) == 0 || \ 541 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT) && \ 542 sizeof(int) == sizeof(*(ptr))) 543 544#define SYSCTL_ADD_INT(ctx, parent, nbr, name, access, ptr, val, descr) \ 545({ \ 546 int *__ptr = (ptr); \ 547 CTASSERT(((access) & CTLTYPE) == 0 || \ 548 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT); \ 549 sysctl_add_oid(ctx, parent, nbr, name, \ 550 CTLTYPE_INT | CTLFLAG_MPSAFE | (access), \ 551 __ptr, val, sysctl_handle_int, "I", __DESCR(descr)); \ 552}) 553 554/* Oid for an unsigned int. If ptr is NULL, val is returned. */ 555#define SYSCTL_NULL_UINT_PTR ((unsigned *)NULL) 556#define SYSCTL_UINT(parent, nbr, name, access, ptr, val, descr) \ 557 SYSCTL_OID(parent, nbr, name, \ 558 CTLTYPE_UINT | CTLFLAG_MPSAFE | (access), \ 559 ptr, val, sysctl_handle_int, "IU", descr); \ 560 CTASSERT((((access) & CTLTYPE) == 0 || \ 561 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_UINT) && \ 562 sizeof(unsigned) == sizeof(*(ptr))) 563 564#define SYSCTL_ADD_UINT(ctx, parent, nbr, name, access, ptr, val, descr) \ 565({ \ 566 unsigned *__ptr = (ptr); \ 567 CTASSERT(((access) & CTLTYPE) == 0 || \ 568 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_UINT); \ 569 sysctl_add_oid(ctx, parent, nbr, name, \ 570 CTLTYPE_UINT | CTLFLAG_MPSAFE | (access), \ 571 __ptr, val, sysctl_handle_int, "IU", __DESCR(descr)); \ 572}) 573 574/* Oid for a long. The pointer must be non NULL. */ 575#define SYSCTL_NULL_LONG_PTR ((long *)NULL) 576#define SYSCTL_LONG(parent, nbr, name, access, ptr, val, descr) \ 577 SYSCTL_OID(parent, nbr, name, \ 578 CTLTYPE_LONG | CTLFLAG_MPSAFE | (access), \ 579 ptr, val, sysctl_handle_long, "L", descr); \ 580 CTASSERT((((access) & CTLTYPE) == 0 || \ 581 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_LONG) && \ 582 sizeof(long) == sizeof(*(ptr))) 583 584#define SYSCTL_ADD_LONG(ctx, parent, nbr, name, access, ptr, descr) \ 585({ \ 586 long *__ptr = (ptr); \ 587 CTASSERT(((access) & CTLTYPE) == 0 || \ 588 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_LONG); \ 589 sysctl_add_oid(ctx, parent, nbr, name, \ 590 CTLTYPE_LONG | CTLFLAG_MPSAFE | (access), \ 591 __ptr, 0, sysctl_handle_long, "L", __DESCR(descr)); \ 592}) 593 594/* Oid for an unsigned long. The pointer must be non NULL. */ 595#define SYSCTL_NULL_ULONG_PTR ((unsigned long *)NULL) 596#define SYSCTL_ULONG(parent, nbr, name, access, ptr, val, descr) \ 597 SYSCTL_OID(parent, nbr, name, \ 598 CTLTYPE_ULONG | CTLFLAG_MPSAFE | (access), \ 599 ptr, val, sysctl_handle_long, "LU", descr); \ 600 CTASSERT((((access) & CTLTYPE) == 0 || \ 601 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_ULONG) && \ 602 sizeof(unsigned long) == sizeof(*(ptr))) 603 604#define SYSCTL_ADD_ULONG(ctx, parent, nbr, name, access, ptr, descr) \ 605({ \ 606 unsigned long *__ptr = (ptr); \ 607 CTASSERT(((access) & CTLTYPE) == 0 || \ 608 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_ULONG); \ 609 sysctl_add_oid(ctx, parent, nbr, name, \ 610 CTLTYPE_ULONG | CTLFLAG_MPSAFE | (access), \ 611 __ptr, 0, sysctl_handle_long, "LU", __DESCR(descr)); \ 612}) 613 614/* Oid for a quad. The pointer must be non NULL. */ 615#define SYSCTL_NULL_QUAD_PTR ((int64_t *)NULL) 616#define SYSCTL_QUAD(parent, nbr, name, access, ptr, val, descr) \ 617 SYSCTL_OID(parent, nbr, name, \ 618 CTLTYPE_S64 | CTLFLAG_MPSAFE | (access), \ 619 ptr, val, sysctl_handle_64, "Q", descr); \ 620 CTASSERT((((access) & CTLTYPE) == 0 || \ 621 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64) && \ 622 sizeof(int64_t) == sizeof(*(ptr))) 623 624#define SYSCTL_ADD_QUAD(ctx, parent, nbr, name, access, ptr, descr) \ 625({ \ 626 int64_t *__ptr = (ptr); \ 627 CTASSERT(((access) & CTLTYPE) == 0 || \ 628 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64); \ 629 sysctl_add_oid(ctx, parent, nbr, name, \ 630 CTLTYPE_S64 | CTLFLAG_MPSAFE | (access), \ 631 __ptr, 0, sysctl_handle_64, "Q", __DESCR(descr)); \ 632}) 633 634#define SYSCTL_NULL_UQUAD_PTR ((uint64_t *)NULL) 635#define SYSCTL_UQUAD(parent, nbr, name, access, ptr, val, descr) \ 636 SYSCTL_OID(parent, nbr, name, \ 637 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \ 638 ptr, val, sysctl_handle_64, "QU", descr); \ 639 CTASSERT((((access) & CTLTYPE) == 0 || \ 640 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64) && \ 641 sizeof(uint64_t) == sizeof(*(ptr))) 642 643#define SYSCTL_ADD_UQUAD(ctx, parent, nbr, name, access, ptr, descr) \ 644({ \ 645 uint64_t *__ptr = (ptr); \ 646 CTASSERT(((access) & CTLTYPE) == 0 || \ 647 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64); \ 648 sysctl_add_oid(ctx, parent, nbr, name, \ 649 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \ 650 __ptr, 0, sysctl_handle_64, "QU", __DESCR(descr)); \ 651}) 652 653/* Oid for a CPU dependent variable */ 654#define SYSCTL_ADD_UAUTO(ctx, parent, nbr, name, access, ptr, descr) \ 655({ \ 656 struct sysctl_oid *__ret; \ 657 CTASSERT((sizeof(uint64_t) == sizeof(*(ptr)) || \ 658 sizeof(unsigned) == sizeof(*(ptr))) && \ 659 ((access) & CTLTYPE) == 0); \ 660 if (sizeof(uint64_t) == sizeof(*(ptr))) { \ 661 __ret = sysctl_add_oid(ctx, parent, nbr, name, \ 662 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \ 663 (ptr), 0, sysctl_handle_64, "QU", \ 664 __DESCR(descr)); \ 665 } else { \ 666 __ret = sysctl_add_oid(ctx, parent, nbr, name, \ 667 CTLTYPE_UINT | CTLFLAG_MPSAFE | (access), \ 668 (ptr), 0, sysctl_handle_int, "IU", \ 669 __DESCR(descr)); \ 670 } \ 671 __ret; \ 672}) 673 674/* Oid for a 64-bit unsigned counter(9). The pointer must be non NULL. */ 675#define SYSCTL_COUNTER_U64(parent, nbr, name, access, ptr, descr) \ 676 SYSCTL_OID(parent, nbr, name, \ 677 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \ 678 (ptr), 0, sysctl_handle_counter_u64, "QU", descr); \ 679 CTASSERT((((access) & CTLTYPE) == 0 || \ 680 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64) && \ 681 sizeof(counter_u64_t) == sizeof(*(ptr)) && \ 682 sizeof(uint64_t) == sizeof(**(ptr))) 683 684#define SYSCTL_ADD_COUNTER_U64(ctx, parent, nbr, name, access, ptr, descr) \ 685({ \ 686 counter_u64_t *__ptr = (ptr); \ 687 CTASSERT(((access) & CTLTYPE) == 0 || \ 688 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64); \ 689 sysctl_add_oid(ctx, parent, nbr, name, \ 690 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \ 691 __ptr, 0, sysctl_handle_counter_u64, "QU", __DESCR(descr)); \ 692}) 693 694/* Oid for an array of counter(9)s. The pointer and length must be non zero. */ 695#define SYSCTL_COUNTER_U64_ARRAY(parent, nbr, name, access, ptr, len, descr) \ 696 SYSCTL_OID(parent, nbr, name, \ 697 CTLTYPE_OPAQUE | CTLFLAG_MPSAFE | (access), \ 698 (ptr), (len), sysctl_handle_counter_u64_array, "S", descr); \ 699 CTASSERT((((access) & CTLTYPE) == 0 || \ 700 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE) && \ 701 sizeof(counter_u64_t) == sizeof(*(ptr)) && \ 702 sizeof(uint64_t) == sizeof(**(ptr))) 703 704#define SYSCTL_ADD_COUNTER_U64_ARRAY(ctx, parent, nbr, name, access, \ 705 ptr, len, descr) \ 706({ \ 707 counter_u64_t *__ptr = (ptr); \ 708 CTASSERT(((access) & CTLTYPE) == 0 || \ 709 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE); \ 710 sysctl_add_oid(ctx, parent, nbr, name, \ 711 CTLTYPE_OPAQUE | CTLFLAG_MPSAFE | (access), \ 712 __ptr, len, sysctl_handle_counter_u64_array, "S", \ 713 __DESCR(descr)); \ 714}) 715 716/* Oid for an opaque object. Specified by a pointer and a length. */ 717#define SYSCTL_OPAQUE(parent, nbr, name, access, ptr, len, fmt, descr) \ 718 SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|(access), \ 719 ptr, len, sysctl_handle_opaque, fmt, descr); \ 720 CTASSERT(((access) & CTLTYPE) == 0 || \ 721 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE) 722 723#define SYSCTL_ADD_OPAQUE(ctx, parent, nbr, name, access, ptr, len, fmt, descr) \ 724({ \ 725 CTASSERT(((access) & CTLTYPE) == 0 || \ 726 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE); \ 727 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_OPAQUE|(access), \ 728 ptr, len, sysctl_handle_opaque, fmt, __DESCR(descr)); \ 729}) 730 731/* Oid for a struct. Specified by a pointer and a type. */ 732#define SYSCTL_STRUCT(parent, nbr, name, access, ptr, type, descr) \ 733 SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|(access), \ 734 ptr, sizeof(struct type), sysctl_handle_opaque, \ 735 "S," #type, descr); \ 736 CTASSERT(((access) & CTLTYPE) == 0 || \ 737 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE) 738 739#define SYSCTL_ADD_STRUCT(ctx, parent, nbr, name, access, ptr, type, descr) \ 740({ \ 741 CTASSERT(((access) & CTLTYPE) == 0 || \ 742 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE); \ 743 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_OPAQUE|(access), \ 744 (ptr), sizeof(struct type), \ 745 sysctl_handle_opaque, "S," #type, __DESCR(descr)); \ 746}) 747 748/* Oid for a procedure. Specified by a pointer and an arg. */ 749#define SYSCTL_PROC(parent, nbr, name, access, ptr, arg, handler, fmt, descr) \ 750 SYSCTL_OID(parent, nbr, name, (access), \ 751 ptr, arg, handler, fmt, descr); \ 752 CTASSERT(((access) & CTLTYPE) != 0) 753 754#define SYSCTL_ADD_PROC(ctx, parent, nbr, name, access, ptr, arg, handler, fmt, descr) \ 755({ \ 756 CTASSERT(((access) & CTLTYPE) != 0); \ 757 sysctl_add_oid(ctx, parent, nbr, name, (access), \ 758 (ptr), (arg), (handler), (fmt), __DESCR(descr)); \ 759}) 760 761/* Oid to handle limits on uma(9) zone specified by pointer. */ 762#define SYSCTL_UMA_MAX(parent, nbr, name, access, ptr, descr) \ 763 SYSCTL_OID(parent, nbr, name, \ 764 CTLTYPE_INT | CTLFLAG_MPSAFE | (access), \ 765 (ptr), 0, sysctl_handle_uma_zone_max, "I", descr); \ 766 CTASSERT(((access) & CTLTYPE) == 0 || \ 767 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT) 768 769#define SYSCTL_ADD_UMA_MAX(ctx, parent, nbr, name, access, ptr, descr) \ 770({ \ 771 uma_zone_t __ptr = (ptr); \ 772 CTASSERT(((access) & CTLTYPE) == 0 || \ 773 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT); \ 774 sysctl_add_oid(ctx, parent, nbr, name, \ 775 CTLTYPE_INT | CTLFLAG_MPSAFE | (access), \ 776 __ptr, 0, sysctl_handle_uma_zone_max, "I", __DESCR(descr)); \ 777}) 778 779/* Oid to obtain current use of uma(9) zone specified by pointer. */ 780#define SYSCTL_UMA_CUR(parent, nbr, name, access, ptr, descr) \ 781 SYSCTL_OID(parent, nbr, name, \ 782 CTLTYPE_INT | CTLFLAG_MPSAFE | CTLFLAG_RD | (access), \ 783 (ptr), 0, sysctl_handle_uma_zone_cur, "I", descr); \ 784 CTASSERT(((access) & CTLTYPE) == 0 || \ 785 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT) 786 787#define SYSCTL_ADD_UMA_CUR(ctx, parent, nbr, name, access, ptr, descr) \ 788({ \ 789 uma_zone_t __ptr = (ptr); \ 790 CTASSERT(((access) & CTLTYPE) == 0 || \ 791 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT); \ 792 sysctl_add_oid(ctx, parent, nbr, name, \ 793 CTLTYPE_INT | CTLFLAG_MPSAFE | CTLFLAG_RD | (access), \ 794 __ptr, 0, sysctl_handle_uma_zone_cur, "I", __DESCR(descr)); \ 795}) 796 797/* OID expressing a struct timeval as seconds */ 798#define SYSCTL_TIMEVAL_SEC(parent, nbr, name, access, ptr, descr) \ 799 SYSCTL_OID(parent, nbr, name, \ 800 CTLTYPE_INT | CTLFLAG_MPSAFE | CTLFLAG_RD | (access), \ 801 (ptr), 0, sysctl_sec_to_timeval, "I", descr); \ 802 CTASSERT(((access) & CTLTYPE) == 0 || \ 803 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT) 804#define SYSCTL_ADD_TIMEVAL_SEC(ctx, parent, nbr, name, access, ptr, descr) \ 805({ \ 806 struct timeval *__ptr = (ptr); \ 807 CTASSERT(((access) & CTLTYPE) == 0 || \ 808 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT); \ 809 sysctl_add_oid(ctx, parent, nbr, name, \ 810 CTLTYPE_INT | CTLFLAG_MPSAFE | CTLFLAG_RD | (access), \ 811 __ptr, 0, sysctl_sec_to_timeval, "I", __DESCR(descr), \ 812 NULL); \ 813}) 814 815/* 816 * A macro to generate a read-only sysctl to indicate the presence of optional 817 * kernel features. 818 */ 819#define FEATURE(name, desc) \ 820 SYSCTL_INT(_kern_features, OID_AUTO, name, CTLFLAG_RD | CTLFLAG_CAPRD, \ 821 SYSCTL_NULL_INT_PTR, 1, desc) 822 823#endif /* _KERNEL */ 824 825/* 826 * Top-level identifiers 827 */ 828#define CTL_UNSPEC 0 /* unused */ 829#define CTL_KERN 1 /* "high kernel": proc, limits */ 830#define CTL_VM 2 /* virtual memory */ 831#define CTL_VFS 3 /* filesystem, mount type is next */ 832#define CTL_NET 4 /* network, see socket.h */ 833#define CTL_DEBUG 5 /* debugging parameters */ 834#define CTL_HW 6 /* generic cpu/io */ 835#define CTL_MACHDEP 7 /* machine dependent */ 836#define CTL_USER 8 /* user-level */ 837#define CTL_P1003_1B 9 /* POSIX 1003.1B */ 838 839/* 840 * CTL_KERN identifiers 841 */ 842#define KERN_OSTYPE 1 /* string: system version */ 843#define KERN_OSRELEASE 2 /* string: system release */ 844#define KERN_OSREV 3 /* int: system revision */ 845#define KERN_VERSION 4 /* string: compile time info */ 846#define KERN_MAXVNODES 5 /* int: max vnodes */ 847#define KERN_MAXPROC 6 /* int: max processes */ 848#define KERN_MAXFILES 7 /* int: max open files */ 849#define KERN_ARGMAX 8 /* int: max arguments to exec */ 850#define KERN_SECURELVL 9 /* int: system security level */ 851#define KERN_HOSTNAME 10 /* string: hostname */ 852#define KERN_HOSTID 11 /* int: host identifier */ 853#define KERN_CLOCKRATE 12 /* struct: struct clockrate */ 854#define KERN_VNODE 13 /* struct: vnode structures */ 855#define KERN_PROC 14 /* struct: process entries */ 856#define KERN_FILE 15 /* struct: file entries */ 857#define KERN_PROF 16 /* node: kernel profiling info */ 858#define KERN_POSIX1 17 /* int: POSIX.1 version */ 859#define KERN_NGROUPS 18 /* int: # of supplemental group ids */ 860#define KERN_JOB_CONTROL 19 /* int: is job control available */ 861#define KERN_SAVED_IDS 20 /* int: saved set-user/group-ID */ 862#define KERN_BOOTTIME 21 /* struct: time kernel was booted */ 863#define KERN_NISDOMAINNAME 22 /* string: YP domain name */ 864#define KERN_UPDATEINTERVAL 23 /* int: update process sleep time */ 865#define KERN_OSRELDATE 24 /* int: kernel release date */ 866#define KERN_NTP_PLL 25 /* node: NTP PLL control */ 867#define KERN_BOOTFILE 26 /* string: name of booted kernel */ 868#define KERN_MAXFILESPERPROC 27 /* int: max open files per proc */ 869#define KERN_MAXPROCPERUID 28 /* int: max processes per uid */ 870#define KERN_DUMPDEV 29 /* struct cdev *: device to dump on */ 871#define KERN_IPC 30 /* node: anything related to IPC */ 872#define KERN_DUMMY 31 /* unused */ 873#define KERN_PS_STRINGS 32 /* int: address of PS_STRINGS */ 874#define KERN_USRSTACK 33 /* int: address of USRSTACK */ 875#define KERN_LOGSIGEXIT 34 /* int: do we log sigexit procs? */ 876#define KERN_IOV_MAX 35 /* int: value of UIO_MAXIOV */ 877#define KERN_HOSTUUID 36 /* string: host UUID identifier */ 878#define KERN_ARND 37 /* int: from arc4rand() */ 879/* 880 * KERN_PROC subtypes 881 */ 882#define KERN_PROC_ALL 0 /* everything */ 883#define KERN_PROC_PID 1 /* by process id */ 884#define KERN_PROC_PGRP 2 /* by process group id */ 885#define KERN_PROC_SESSION 3 /* by session of pid */ 886#define KERN_PROC_TTY 4 /* by controlling tty */ 887#define KERN_PROC_UID 5 /* by effective uid */ 888#define KERN_PROC_RUID 6 /* by real uid */ 889#define KERN_PROC_ARGS 7 /* get/set arguments/proctitle */ 890#define KERN_PROC_PROC 8 /* only return procs */ 891#define KERN_PROC_SV_NAME 9 /* get syscall vector name */ 892#define KERN_PROC_RGID 10 /* by real group id */ 893#define KERN_PROC_GID 11 /* by effective group id */ 894#define KERN_PROC_PATHNAME 12 /* path to executable */ 895#define KERN_PROC_OVMMAP 13 /* Old VM map entries for process */ 896#define KERN_PROC_OFILEDESC 14 /* Old file descriptors for process */ 897#define KERN_PROC_KSTACK 15 /* Kernel stacks for process */ 898#define KERN_PROC_INC_THREAD 0x10 /* 899 * modifier for pid, pgrp, tty, 900 * uid, ruid, gid, rgid and proc 901 * This effectively uses 16-31 902 */ 903#define KERN_PROC_VMMAP 32 /* VM map entries for process */ 904#define KERN_PROC_FILEDESC 33 /* File descriptors for process */ 905#define KERN_PROC_GROUPS 34 /* process groups */ 906#define KERN_PROC_ENV 35 /* get environment */ 907#define KERN_PROC_AUXV 36 /* get ELF auxiliary vector */ 908#define KERN_PROC_RLIMIT 37 /* process resource limits */ 909#define KERN_PROC_PS_STRINGS 38 /* get ps_strings location */ 910#define KERN_PROC_UMASK 39 /* process umask */ 911#define KERN_PROC_OSREL 40 /* osreldate for process binary */ 912#define KERN_PROC_SIGTRAMP 41 /* signal trampoline location */ 913#define KERN_PROC_CWD 42 /* process current working directory */ 914#define KERN_PROC_NFDS 43 /* number of open file descriptors */ 915 916/* 917 * KERN_IPC identifiers 918 */ 919#define KIPC_MAXSOCKBUF 1 /* int: max size of a socket buffer */ 920#define KIPC_SOCKBUF_WASTE 2 /* int: wastage factor in sockbuf */ 921#define KIPC_SOMAXCONN 3 /* int: max length of connection q */ 922#define KIPC_MAX_LINKHDR 4 /* int: max length of link header */ 923#define KIPC_MAX_PROTOHDR 5 /* int: max length of network header */ 924#define KIPC_MAX_HDR 6 /* int: max total length of headers */ 925#define KIPC_MAX_DATALEN 7 /* int: max length of data? */ 926 927/* 928 * CTL_HW identifiers 929 */ 930#define HW_MACHINE 1 /* string: machine class */ 931#define HW_MODEL 2 /* string: specific machine model */ 932#define HW_NCPU 3 /* int: number of cpus */ 933#define HW_BYTEORDER 4 /* int: machine byte order */ 934#define HW_PHYSMEM 5 /* int: total memory */ 935#define HW_USERMEM 6 /* int: non-kernel memory */ 936#define HW_PAGESIZE 7 /* int: software page size */ 937#define HW_DISKNAMES 8 /* strings: disk drive names */ 938#define HW_DISKSTATS 9 /* struct: diskstats[] */ 939#define HW_FLOATINGPT 10 /* int: has HW floating point? */ 940#define HW_MACHINE_ARCH 11 /* string: machine architecture */ 941#define HW_REALMEM 12 /* int: 'real' memory */ 942 943/* 944 * CTL_USER definitions 945 */ 946#define USER_CS_PATH 1 /* string: _CS_PATH */ 947#define USER_BC_BASE_MAX 2 /* int: BC_BASE_MAX */ 948#define USER_BC_DIM_MAX 3 /* int: BC_DIM_MAX */ 949#define USER_BC_SCALE_MAX 4 /* int: BC_SCALE_MAX */ 950#define USER_BC_STRING_MAX 5 /* int: BC_STRING_MAX */ 951#define USER_COLL_WEIGHTS_MAX 6 /* int: COLL_WEIGHTS_MAX */ 952#define USER_EXPR_NEST_MAX 7 /* int: EXPR_NEST_MAX */ 953#define USER_LINE_MAX 8 /* int: LINE_MAX */ 954#define USER_RE_DUP_MAX 9 /* int: RE_DUP_MAX */ 955#define USER_POSIX2_VERSION 10 /* int: POSIX2_VERSION */ 956#define USER_POSIX2_C_BIND 11 /* int: POSIX2_C_BIND */ 957#define USER_POSIX2_C_DEV 12 /* int: POSIX2_C_DEV */ 958#define USER_POSIX2_CHAR_TERM 13 /* int: POSIX2_CHAR_TERM */ 959#define USER_POSIX2_FORT_DEV 14 /* int: POSIX2_FORT_DEV */ 960#define USER_POSIX2_FORT_RUN 15 /* int: POSIX2_FORT_RUN */ 961#define USER_POSIX2_LOCALEDEF 16 /* int: POSIX2_LOCALEDEF */ 962#define USER_POSIX2_SW_DEV 17 /* int: POSIX2_SW_DEV */ 963#define USER_POSIX2_UPE 18 /* int: POSIX2_UPE */ 964#define USER_STREAM_MAX 19 /* int: POSIX2_STREAM_MAX */ 965#define USER_TZNAME_MAX 20 /* int: POSIX2_TZNAME_MAX */ 966 967#define CTL_P1003_1B_ASYNCHRONOUS_IO 1 /* boolean */ 968#define CTL_P1003_1B_MAPPED_FILES 2 /* boolean */ 969#define CTL_P1003_1B_MEMLOCK 3 /* boolean */ 970#define CTL_P1003_1B_MEMLOCK_RANGE 4 /* boolean */ 971#define CTL_P1003_1B_MEMORY_PROTECTION 5 /* boolean */ 972#define CTL_P1003_1B_MESSAGE_PASSING 6 /* boolean */ 973#define CTL_P1003_1B_PRIORITIZED_IO 7 /* boolean */ 974#define CTL_P1003_1B_PRIORITY_SCHEDULING 8 /* boolean */ 975#define CTL_P1003_1B_REALTIME_SIGNALS 9 /* boolean */ 976#define CTL_P1003_1B_SEMAPHORES 10 /* boolean */ 977#define CTL_P1003_1B_FSYNC 11 /* boolean */ 978#define CTL_P1003_1B_SHARED_MEMORY_OBJECTS 12 /* boolean */ 979#define CTL_P1003_1B_SYNCHRONIZED_IO 13 /* boolean */ 980#define CTL_P1003_1B_TIMERS 14 /* boolean */ 981#define CTL_P1003_1B_AIO_LISTIO_MAX 15 /* int */ 982#define CTL_P1003_1B_AIO_MAX 16 /* int */ 983#define CTL_P1003_1B_AIO_PRIO_DELTA_MAX 17 /* int */ 984#define CTL_P1003_1B_DELAYTIMER_MAX 18 /* int */ 985#define CTL_P1003_1B_MQ_OPEN_MAX 19 /* int */ 986#define CTL_P1003_1B_PAGESIZE 20 /* int */ 987#define CTL_P1003_1B_RTSIG_MAX 21 /* int */ 988#define CTL_P1003_1B_SEM_NSEMS_MAX 22 /* int */ 989#define CTL_P1003_1B_SEM_VALUE_MAX 23 /* int */ 990#define CTL_P1003_1B_SIGQUEUE_MAX 24 /* int */ 991#define CTL_P1003_1B_TIMER_MAX 25 /* int */ 992 993#define CTL_P1003_1B_MAXID 26 994 995#ifdef _KERNEL 996 997/* 998 * Declare some common oids. 999 */ 1000extern struct sysctl_oid_list sysctl__children; 1001SYSCTL_DECL(_kern); 1002SYSCTL_DECL(_kern_features); 1003SYSCTL_DECL(_kern_ipc); 1004SYSCTL_DECL(_kern_proc); 1005SYSCTL_DECL(_kern_sched); 1006SYSCTL_DECL(_kern_sched_stats); 1007SYSCTL_DECL(_sysctl); 1008SYSCTL_DECL(_vm); 1009SYSCTL_DECL(_vm_stats); 1010SYSCTL_DECL(_vm_stats_misc); 1011SYSCTL_DECL(_vfs); 1012SYSCTL_DECL(_net); 1013SYSCTL_DECL(_debug); 1014SYSCTL_DECL(_debug_sizeof); 1015SYSCTL_DECL(_dev); 1016SYSCTL_DECL(_hw); 1017SYSCTL_DECL(_hw_bus); 1018SYSCTL_DECL(_hw_bus_devices); 1019SYSCTL_DECL(_hw_bus_info); 1020SYSCTL_DECL(_machdep); 1021SYSCTL_DECL(_machdep_mitigations); 1022SYSCTL_DECL(_user); 1023SYSCTL_DECL(_compat); 1024SYSCTL_DECL(_regression); 1025SYSCTL_DECL(_security); 1026SYSCTL_DECL(_security_bsd); 1027 1028extern char machine[]; 1029extern char osrelease[]; 1030extern char ostype[]; 1031extern char kern_ident[]; 1032 1033/* Dynamic oid handling */ 1034struct sysctl_oid *sysctl_add_oid(struct sysctl_ctx_list *clist, 1035 struct sysctl_oid_list *parent, int nbr, const char *name, int kind, 1036 void *arg1, intmax_t arg2, int (*handler)(SYSCTL_HANDLER_ARGS), 1037 const char *fmt, const char *descr); 1038int sysctl_remove_name(struct sysctl_oid *parent, const char *name, int del, 1039 int recurse); 1040void sysctl_rename_oid(struct sysctl_oid *oidp, const char *name); 1041int sysctl_move_oid(struct sysctl_oid *oidp, 1042 struct sysctl_oid_list *parent); 1043int sysctl_remove_oid(struct sysctl_oid *oidp, int del, int recurse); 1044int sysctl_ctx_init(struct sysctl_ctx_list *clist); 1045int sysctl_ctx_free(struct sysctl_ctx_list *clist); 1046struct sysctl_ctx_entry *sysctl_ctx_entry_add(struct sysctl_ctx_list *clist, 1047 struct sysctl_oid *oidp); 1048struct sysctl_ctx_entry *sysctl_ctx_entry_find(struct sysctl_ctx_list *clist, 1049 struct sysctl_oid *oidp); 1050int sysctl_ctx_entry_del(struct sysctl_ctx_list *clist, 1051 struct sysctl_oid *oidp); 1052 1053int kernel_sysctl(struct thread *td, int *name, u_int namelen, void *old, 1054 size_t *oldlenp, void *new, size_t newlen, size_t *retval, 1055 int flags); 1056int kernel_sysctlbyname(struct thread *td, char *name, void *old, 1057 size_t *oldlenp, void *new, size_t newlen, size_t *retval, 1058 int flags); 1059int userland_sysctl(struct thread *td, int *name, u_int namelen, void *old, 1060 size_t *oldlenp, int inkernel, void *new, size_t newlen, 1061 size_t *retval, int flags); 1062int sysctl_find_oid(int *name, u_int namelen, struct sysctl_oid **noid, 1063 int *nindx, struct sysctl_req *req); 1064void sysctl_wlock(void); 1065void sysctl_wunlock(void); 1066int sysctl_wire_old_buffer(struct sysctl_req *req, size_t len); 1067 1068struct sbuf; 1069struct sbuf *sbuf_new_for_sysctl(struct sbuf *, char *, int, 1070 struct sysctl_req *); 1071#else /* !_KERNEL */ 1072#include <sys/cdefs.h> 1073 1074__BEGIN_DECLS 1075int sysctl(const int *, u_int, void *, size_t *, const void *, size_t); 1076int sysctlbyname(const char *, void *, size_t *, const void *, size_t); 1077int sysctlnametomib(const char *, int *, size_t *); 1078__END_DECLS 1079#endif /* _KERNEL */ 1080 1081#endif /* !_SYS_SYSCTL_H_ */ 1082