sysctl.h revision 347213
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 347213 2019-05-06 21:31:02Z erj $ 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_dpcpu_int(SYSCTL_HANDLER_ARGS); 215int sysctl_dpcpu_long(SYSCTL_HANDLER_ARGS); 216int sysctl_dpcpu_quad(SYSCTL_HANDLER_ARGS); 217 218/* 219 * These functions are used to add/remove an oid from the mib. 220 */ 221void sysctl_register_oid(struct sysctl_oid *oidp); 222void sysctl_register_disabled_oid(struct sysctl_oid *oidp); 223void sysctl_enable_oid(struct sysctl_oid *oidp); 224void sysctl_unregister_oid(struct sysctl_oid *oidp); 225 226/* Declare a static oid to allow child oids to be added to it. */ 227#define SYSCTL_DECL(name) \ 228 extern struct sysctl_oid sysctl__##name 229 230/* Hide these in macros. */ 231#define SYSCTL_CHILDREN(oid_ptr) (&(oid_ptr)->oid_children) 232#define SYSCTL_PARENT(oid_ptr) \ 233 (((oid_ptr)->oid_parent != &sysctl__children) ? \ 234 __containerof((oid_ptr)->oid_parent, struct sysctl_oid, \ 235 oid_children) : (struct sysctl_oid *)NULL) 236#define SYSCTL_STATIC_CHILDREN(oid_name) (&sysctl__##oid_name.oid_children) 237 238/* === Structs and macros related to context handling. === */ 239 240/* All dynamically created sysctls can be tracked in a context list. */ 241struct sysctl_ctx_entry { 242 struct sysctl_oid *entry; 243 TAILQ_ENTRY(sysctl_ctx_entry) link; 244}; 245 246TAILQ_HEAD(sysctl_ctx_list, sysctl_ctx_entry); 247 248#define SYSCTL_NODE_CHILDREN(parent, name) \ 249 sysctl__##parent##_##name.oid_children 250 251#ifndef NO_SYSCTL_DESCR 252#define __DESCR(d) d 253#else 254#define __DESCR(d) "" 255#endif 256 257/* This macro is only for internal use */ 258#define SYSCTL_OID_RAW(id, parent_child_head, nbr, name, kind, a1, a2, handler, fmt, descr) \ 259 struct sysctl_oid id = { \ 260 .oid_parent = (parent_child_head), \ 261 .oid_children = SLIST_HEAD_INITIALIZER(&id.oid_children), \ 262 .oid_number = (nbr), \ 263 .oid_kind = (kind), \ 264 .oid_arg1 = (a1), \ 265 .oid_arg2 = (a2), \ 266 .oid_name = (name), \ 267 .oid_handler = (handler), \ 268 .oid_fmt = (fmt), \ 269 .oid_descr = __DESCR(descr) \ 270 }; \ 271 DATA_SET(sysctl_set, id) 272 273/* This constructs a static "raw" MIB oid. */ 274#define SYSCTL_OID(parent, nbr, name, kind, a1, a2, handler, fmt, descr) \ 275 static SYSCTL_OID_RAW(sysctl__##parent##_##name, \ 276 SYSCTL_CHILDREN(&sysctl__##parent), \ 277 nbr, #name, kind, a1, a2, handler, fmt, descr) 278 279/* This constructs a global "raw" MIB oid. */ 280#define SYSCTL_OID_GLOBAL(parent, nbr, name, kind, a1, a2, handler, fmt, descr) \ 281 SYSCTL_OID_RAW(sysctl__##parent##_##name, \ 282 SYSCTL_CHILDREN(&sysctl__##parent), \ 283 nbr, #name, kind, a1, a2, handler, fmt, descr) 284 285#define SYSCTL_ADD_OID(ctx, parent, nbr, name, kind, a1, a2, handler, fmt, descr) \ 286 sysctl_add_oid(ctx, parent, nbr, name, kind, a1, a2, handler, fmt, __DESCR(descr)) 287 288/* This constructs a root node from which other nodes can hang. */ 289#define SYSCTL_ROOT_NODE(nbr, name, access, handler, descr) \ 290 SYSCTL_OID_RAW(sysctl___##name, &sysctl__children, \ 291 nbr, #name, CTLTYPE_NODE|(access), NULL, 0, \ 292 handler, "N", descr); \ 293 CTASSERT(((access) & CTLTYPE) == 0 || \ 294 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_NODE) 295 296/* This constructs a node from which other oids can hang. */ 297#define SYSCTL_NODE(parent, nbr, name, access, handler, descr) \ 298 SYSCTL_OID_GLOBAL(parent, nbr, name, CTLTYPE_NODE|(access), \ 299 NULL, 0, handler, "N", descr); \ 300 CTASSERT(((access) & CTLTYPE) == 0 || \ 301 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_NODE) 302 303#define SYSCTL_ADD_NODE(ctx, parent, nbr, name, access, handler, descr) \ 304({ \ 305 CTASSERT(((access) & CTLTYPE) == 0 || \ 306 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_NODE); \ 307 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_NODE|(access), \ 308 NULL, 0, handler, "N", __DESCR(descr)); \ 309}) 310 311#define SYSCTL_ADD_ROOT_NODE(ctx, nbr, name, access, handler, descr) \ 312({ \ 313 CTASSERT(((access) & CTLTYPE) == 0 || \ 314 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_NODE); \ 315 sysctl_add_oid(ctx, &sysctl__children, nbr, name, \ 316 CTLTYPE_NODE|(access), \ 317 NULL, 0, handler, "N", __DESCR(descr)); \ 318}) 319 320/* Oid for a string. len can be 0 to indicate '\0' termination. */ 321#define SYSCTL_STRING(parent, nbr, name, access, arg, len, descr) \ 322 SYSCTL_OID(parent, nbr, name, CTLTYPE_STRING|(access), \ 323 arg, len, sysctl_handle_string, "A", descr); \ 324 CTASSERT(((access) & CTLTYPE) == 0 || \ 325 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_STRING) 326 327#define SYSCTL_ADD_STRING(ctx, parent, nbr, name, access, arg, len, descr) \ 328({ \ 329 char *__arg = (arg); \ 330 CTASSERT(((access) & CTLTYPE) == 0 || \ 331 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_STRING); \ 332 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_STRING|(access), \ 333 __arg, len, sysctl_handle_string, "A", __DESCR(descr)); \ 334}) 335 336/* Oid for a constant '\0' terminated string. */ 337#define SYSCTL_CONST_STRING(parent, nbr, name, access, arg, descr) \ 338 SYSCTL_OID(parent, nbr, name, CTLTYPE_STRING|(access), \ 339 __DECONST(char *, arg), 0, sysctl_handle_string, "A", descr); \ 340 CTASSERT(!(access & CTLFLAG_WR)); \ 341 CTASSERT(((access) & CTLTYPE) == 0 || \ 342 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_STRING) 343 344#define SYSCTL_ADD_CONST_STRING(ctx, parent, nbr, name, access, arg, descr) \ 345({ \ 346 char *__arg = __DECONST(char *, arg); \ 347 CTASSERT(!(access & CTLFLAG_WR)); \ 348 CTASSERT(((access) & CTLTYPE) == 0 || \ 349 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_STRING); \ 350 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_STRING|(access), \ 351 __arg, 0, sysctl_handle_string, "A", __DESCR(descr)); \ 352}) 353 354/* Oid for a bool. If ptr is NULL, val is returned. */ 355#define SYSCTL_NULL_BOOL_PTR ((bool *)NULL) 356#define SYSCTL_BOOL(parent, nbr, name, access, ptr, val, descr) \ 357 SYSCTL_OID(parent, nbr, name, \ 358 CTLTYPE_U8 | CTLFLAG_MPSAFE | (access), \ 359 ptr, val, sysctl_handle_bool, "CU", descr); \ 360 CTASSERT(((access) & CTLTYPE) == 0 && \ 361 sizeof(bool) == sizeof(*(ptr))) 362 363#define SYSCTL_ADD_BOOL(ctx, parent, nbr, name, access, ptr, val, descr) \ 364({ \ 365 bool *__ptr = (ptr); \ 366 CTASSERT(((access) & CTLTYPE) == 0); \ 367 sysctl_add_oid(ctx, parent, nbr, name, \ 368 CTLTYPE_U8 | CTLFLAG_MPSAFE | (access), \ 369 __ptr, val, sysctl_handle_bool, "CU", __DESCR(descr)); \ 370}) 371 372/* Oid for a signed 8-bit int. If ptr is NULL, val is returned. */ 373#define SYSCTL_NULL_S8_PTR ((int8_t *)NULL) 374#define SYSCTL_S8(parent, nbr, name, access, ptr, val, descr) \ 375 SYSCTL_OID(parent, nbr, name, \ 376 CTLTYPE_S8 | CTLFLAG_MPSAFE | (access), \ 377 ptr, val, sysctl_handle_8, "C", descr); \ 378 CTASSERT((((access) & CTLTYPE) == 0 || \ 379 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S8) && \ 380 sizeof(int8_t) == sizeof(*(ptr))) 381 382#define SYSCTL_ADD_S8(ctx, parent, nbr, name, access, ptr, val, descr) \ 383({ \ 384 int8_t *__ptr = (ptr); \ 385 CTASSERT(((access) & CTLTYPE) == 0 || \ 386 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S8); \ 387 sysctl_add_oid(ctx, parent, nbr, name, \ 388 CTLTYPE_S8 | CTLFLAG_MPSAFE | (access), \ 389 __ptr, val, sysctl_handle_8, "C", __DESCR(descr)); \ 390}) 391 392/* Oid for an unsigned 8-bit int. If ptr is NULL, val is returned. */ 393#define SYSCTL_NULL_U8_PTR ((uint8_t *)NULL) 394#define SYSCTL_U8(parent, nbr, name, access, ptr, val, descr) \ 395 SYSCTL_OID(parent, nbr, name, \ 396 CTLTYPE_U8 | CTLFLAG_MPSAFE | (access), \ 397 ptr, val, sysctl_handle_8, "CU", descr); \ 398 CTASSERT((((access) & CTLTYPE) == 0 || \ 399 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U8) && \ 400 sizeof(uint8_t) == sizeof(*(ptr))) 401 402#define SYSCTL_ADD_U8(ctx, parent, nbr, name, access, ptr, val, descr) \ 403({ \ 404 uint8_t *__ptr = (ptr); \ 405 CTASSERT(((access) & CTLTYPE) == 0 || \ 406 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U8); \ 407 sysctl_add_oid(ctx, parent, nbr, name, \ 408 CTLTYPE_U8 | CTLFLAG_MPSAFE | (access), \ 409 __ptr, val, sysctl_handle_8, "CU", __DESCR(descr)); \ 410}) 411 412/* Oid for a signed 16-bit int. If ptr is NULL, val is returned. */ 413#define SYSCTL_NULL_S16_PTR ((int16_t *)NULL) 414#define SYSCTL_S16(parent, nbr, name, access, ptr, val, descr) \ 415 SYSCTL_OID(parent, nbr, name, \ 416 CTLTYPE_S16 | CTLFLAG_MPSAFE | (access), \ 417 ptr, val, sysctl_handle_16, "S", descr); \ 418 CTASSERT((((access) & CTLTYPE) == 0 || \ 419 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S16) && \ 420 sizeof(int16_t) == sizeof(*(ptr))) 421 422#define SYSCTL_ADD_S16(ctx, parent, nbr, name, access, ptr, val, descr) \ 423({ \ 424 int16_t *__ptr = (ptr); \ 425 CTASSERT(((access) & CTLTYPE) == 0 || \ 426 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S16); \ 427 sysctl_add_oid(ctx, parent, nbr, name, \ 428 CTLTYPE_S16 | CTLFLAG_MPSAFE | (access), \ 429 __ptr, val, sysctl_handle_16, "S", __DESCR(descr)); \ 430}) 431 432/* Oid for an unsigned 16-bit int. If ptr is NULL, val is returned. */ 433#define SYSCTL_NULL_U16_PTR ((uint16_t *)NULL) 434#define SYSCTL_U16(parent, nbr, name, access, ptr, val, descr) \ 435 SYSCTL_OID(parent, nbr, name, \ 436 CTLTYPE_U16 | CTLFLAG_MPSAFE | (access), \ 437 ptr, val, sysctl_handle_16, "SU", descr); \ 438 CTASSERT((((access) & CTLTYPE) == 0 || \ 439 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U16) && \ 440 sizeof(uint16_t) == sizeof(*(ptr))) 441 442#define SYSCTL_ADD_U16(ctx, parent, nbr, name, access, ptr, val, descr) \ 443({ \ 444 uint16_t *__ptr = (ptr); \ 445 CTASSERT(((access) & CTLTYPE) == 0 || \ 446 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U16); \ 447 sysctl_add_oid(ctx, parent, nbr, name, \ 448 CTLTYPE_U16 | CTLFLAG_MPSAFE | (access), \ 449 __ptr, val, sysctl_handle_16, "SU", __DESCR(descr)); \ 450}) 451 452/* Oid for a signed 32-bit int. If ptr is NULL, val is returned. */ 453#define SYSCTL_NULL_S32_PTR ((int32_t *)NULL) 454#define SYSCTL_S32(parent, nbr, name, access, ptr, val, descr) \ 455 SYSCTL_OID(parent, nbr, name, \ 456 CTLTYPE_S32 | CTLFLAG_MPSAFE | (access), \ 457 ptr, val, sysctl_handle_32, "I", descr); \ 458 CTASSERT((((access) & CTLTYPE) == 0 || \ 459 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S32) && \ 460 sizeof(int32_t) == sizeof(*(ptr))) 461 462#define SYSCTL_ADD_S32(ctx, parent, nbr, name, access, ptr, val, descr) \ 463({ \ 464 int32_t *__ptr = (ptr); \ 465 CTASSERT(((access) & CTLTYPE) == 0 || \ 466 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S32); \ 467 sysctl_add_oid(ctx, parent, nbr, name, \ 468 CTLTYPE_S32 | CTLFLAG_MPSAFE | (access), \ 469 __ptr, val, sysctl_handle_32, "I", __DESCR(descr)); \ 470}) 471 472/* Oid for an unsigned 32-bit int. If ptr is NULL, val is returned. */ 473#define SYSCTL_NULL_U32_PTR ((uint32_t *)NULL) 474#define SYSCTL_U32(parent, nbr, name, access, ptr, val, descr) \ 475 SYSCTL_OID(parent, nbr, name, \ 476 CTLTYPE_U32 | CTLFLAG_MPSAFE | (access), \ 477 ptr, val, sysctl_handle_32, "IU", descr); \ 478 CTASSERT((((access) & CTLTYPE) == 0 || \ 479 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U32) && \ 480 sizeof(uint32_t) == sizeof(*(ptr))) 481 482#define SYSCTL_ADD_U32(ctx, parent, nbr, name, access, ptr, val, descr) \ 483({ \ 484 uint32_t *__ptr = (ptr); \ 485 CTASSERT(((access) & CTLTYPE) == 0 || \ 486 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U32); \ 487 sysctl_add_oid(ctx, parent, nbr, name, \ 488 CTLTYPE_U32 | CTLFLAG_MPSAFE | (access), \ 489 __ptr, val, sysctl_handle_32, "IU", __DESCR(descr)); \ 490}) 491 492/* Oid for a signed 64-bit int. If ptr is NULL, val is returned. */ 493#define SYSCTL_NULL_S64_PTR ((int64_t *)NULL) 494#define SYSCTL_S64(parent, nbr, name, access, ptr, val, descr) \ 495 SYSCTL_OID(parent, nbr, name, \ 496 CTLTYPE_S64 | CTLFLAG_MPSAFE | (access), \ 497 ptr, val, sysctl_handle_64, "Q", descr); \ 498 CTASSERT((((access) & CTLTYPE) == 0 || \ 499 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64) && \ 500 sizeof(int64_t) == sizeof(*(ptr))) 501 502#define SYSCTL_ADD_S64(ctx, parent, nbr, name, access, ptr, val, descr) \ 503({ \ 504 int64_t *__ptr = (ptr); \ 505 CTASSERT(((access) & CTLTYPE) == 0 || \ 506 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64); \ 507 sysctl_add_oid(ctx, parent, nbr, name, \ 508 CTLTYPE_S64 | CTLFLAG_MPSAFE | (access), \ 509 __ptr, val, sysctl_handle_64, "Q", __DESCR(descr)); \ 510}) 511 512/* Oid for an unsigned 64-bit int. If ptr is NULL, val is returned. */ 513#define SYSCTL_NULL_U64_PTR ((uint64_t *)NULL) 514#define SYSCTL_U64(parent, nbr, name, access, ptr, val, descr) \ 515 SYSCTL_OID(parent, nbr, name, \ 516 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \ 517 ptr, val, sysctl_handle_64, "QU", descr); \ 518 CTASSERT((((access) & CTLTYPE) == 0 || \ 519 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64) && \ 520 sizeof(uint64_t) == sizeof(*(ptr))) 521 522#define SYSCTL_ADD_U64(ctx, parent, nbr, name, access, ptr, val, descr) \ 523({ \ 524 uint64_t *__ptr = (ptr); \ 525 CTASSERT(((access) & CTLTYPE) == 0 || \ 526 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64); \ 527 sysctl_add_oid(ctx, parent, nbr, name, \ 528 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \ 529 __ptr, val, sysctl_handle_64, "QU", __DESCR(descr)); \ 530}) 531 532/* Oid for an int. If ptr is SYSCTL_NULL_INT_PTR, val is returned. */ 533#define SYSCTL_NULL_INT_PTR ((int *)NULL) 534#define SYSCTL_INT(parent, nbr, name, access, ptr, val, descr) \ 535 SYSCTL_OID(parent, nbr, name, \ 536 CTLTYPE_INT | CTLFLAG_MPSAFE | (access), \ 537 ptr, val, sysctl_handle_int, "I", descr); \ 538 CTASSERT((((access) & CTLTYPE) == 0 || \ 539 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT) && \ 540 sizeof(int) == sizeof(*(ptr))) 541 542#define SYSCTL_ADD_INT(ctx, parent, nbr, name, access, ptr, val, descr) \ 543({ \ 544 int *__ptr = (ptr); \ 545 CTASSERT(((access) & CTLTYPE) == 0 || \ 546 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT); \ 547 sysctl_add_oid(ctx, parent, nbr, name, \ 548 CTLTYPE_INT | CTLFLAG_MPSAFE | (access), \ 549 __ptr, val, sysctl_handle_int, "I", __DESCR(descr)); \ 550}) 551 552/* Oid for an unsigned int. If ptr is NULL, val is returned. */ 553#define SYSCTL_NULL_UINT_PTR ((unsigned *)NULL) 554#define SYSCTL_UINT(parent, nbr, name, access, ptr, val, descr) \ 555 SYSCTL_OID(parent, nbr, name, \ 556 CTLTYPE_UINT | CTLFLAG_MPSAFE | (access), \ 557 ptr, val, sysctl_handle_int, "IU", descr); \ 558 CTASSERT((((access) & CTLTYPE) == 0 || \ 559 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_UINT) && \ 560 sizeof(unsigned) == sizeof(*(ptr))) 561 562#define SYSCTL_ADD_UINT(ctx, parent, nbr, name, access, ptr, val, descr) \ 563({ \ 564 unsigned *__ptr = (ptr); \ 565 CTASSERT(((access) & CTLTYPE) == 0 || \ 566 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_UINT); \ 567 sysctl_add_oid(ctx, parent, nbr, name, \ 568 CTLTYPE_UINT | CTLFLAG_MPSAFE | (access), \ 569 __ptr, val, sysctl_handle_int, "IU", __DESCR(descr)); \ 570}) 571 572/* Oid for a long. The pointer must be non NULL. */ 573#define SYSCTL_NULL_LONG_PTR ((long *)NULL) 574#define SYSCTL_LONG(parent, nbr, name, access, ptr, val, descr) \ 575 SYSCTL_OID(parent, nbr, name, \ 576 CTLTYPE_LONG | CTLFLAG_MPSAFE | (access), \ 577 ptr, val, sysctl_handle_long, "L", descr); \ 578 CTASSERT((((access) & CTLTYPE) == 0 || \ 579 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_LONG) && \ 580 sizeof(long) == sizeof(*(ptr))) 581 582#define SYSCTL_ADD_LONG(ctx, parent, nbr, name, access, ptr, descr) \ 583({ \ 584 long *__ptr = (ptr); \ 585 CTASSERT(((access) & CTLTYPE) == 0 || \ 586 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_LONG); \ 587 sysctl_add_oid(ctx, parent, nbr, name, \ 588 CTLTYPE_LONG | CTLFLAG_MPSAFE | (access), \ 589 __ptr, 0, sysctl_handle_long, "L", __DESCR(descr)); \ 590}) 591 592/* Oid for an unsigned long. The pointer must be non NULL. */ 593#define SYSCTL_NULL_ULONG_PTR ((unsigned long *)NULL) 594#define SYSCTL_ULONG(parent, nbr, name, access, ptr, val, descr) \ 595 SYSCTL_OID(parent, nbr, name, \ 596 CTLTYPE_ULONG | CTLFLAG_MPSAFE | (access), \ 597 ptr, val, sysctl_handle_long, "LU", descr); \ 598 CTASSERT((((access) & CTLTYPE) == 0 || \ 599 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_ULONG) && \ 600 sizeof(unsigned long) == sizeof(*(ptr))) 601 602#define SYSCTL_ADD_ULONG(ctx, parent, nbr, name, access, ptr, descr) \ 603({ \ 604 unsigned long *__ptr = (ptr); \ 605 CTASSERT(((access) & CTLTYPE) == 0 || \ 606 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_ULONG); \ 607 sysctl_add_oid(ctx, parent, nbr, name, \ 608 CTLTYPE_ULONG | CTLFLAG_MPSAFE | (access), \ 609 __ptr, 0, sysctl_handle_long, "LU", __DESCR(descr)); \ 610}) 611 612/* Oid for a quad. The pointer must be non NULL. */ 613#define SYSCTL_NULL_QUAD_PTR ((int64_t *)NULL) 614#define SYSCTL_QUAD(parent, nbr, name, access, ptr, val, descr) \ 615 SYSCTL_OID(parent, nbr, name, \ 616 CTLTYPE_S64 | CTLFLAG_MPSAFE | (access), \ 617 ptr, val, sysctl_handle_64, "Q", descr); \ 618 CTASSERT((((access) & CTLTYPE) == 0 || \ 619 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64) && \ 620 sizeof(int64_t) == sizeof(*(ptr))) 621 622#define SYSCTL_ADD_QUAD(ctx, parent, nbr, name, access, ptr, descr) \ 623({ \ 624 int64_t *__ptr = (ptr); \ 625 CTASSERT(((access) & CTLTYPE) == 0 || \ 626 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64); \ 627 sysctl_add_oid(ctx, parent, nbr, name, \ 628 CTLTYPE_S64 | CTLFLAG_MPSAFE | (access), \ 629 __ptr, 0, sysctl_handle_64, "Q", __DESCR(descr)); \ 630}) 631 632#define SYSCTL_NULL_UQUAD_PTR ((uint64_t *)NULL) 633#define SYSCTL_UQUAD(parent, nbr, name, access, ptr, val, descr) \ 634 SYSCTL_OID(parent, nbr, name, \ 635 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \ 636 ptr, val, sysctl_handle_64, "QU", descr); \ 637 CTASSERT((((access) & CTLTYPE) == 0 || \ 638 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64) && \ 639 sizeof(uint64_t) == sizeof(*(ptr))) 640 641#define SYSCTL_ADD_UQUAD(ctx, parent, nbr, name, access, ptr, descr) \ 642({ \ 643 uint64_t *__ptr = (ptr); \ 644 CTASSERT(((access) & CTLTYPE) == 0 || \ 645 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64); \ 646 sysctl_add_oid(ctx, parent, nbr, name, \ 647 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \ 648 __ptr, 0, sysctl_handle_64, "QU", __DESCR(descr)); \ 649}) 650 651/* Oid for a CPU dependent variable */ 652#define SYSCTL_ADD_UAUTO(ctx, parent, nbr, name, access, ptr, descr) \ 653({ \ 654 struct sysctl_oid *__ret; \ 655 CTASSERT((sizeof(uint64_t) == sizeof(*(ptr)) || \ 656 sizeof(unsigned) == sizeof(*(ptr))) && \ 657 ((access) & CTLTYPE) == 0); \ 658 if (sizeof(uint64_t) == sizeof(*(ptr))) { \ 659 __ret = sysctl_add_oid(ctx, parent, nbr, name, \ 660 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \ 661 (ptr), 0, sysctl_handle_64, "QU", \ 662 __DESCR(descr)); \ 663 } else { \ 664 __ret = sysctl_add_oid(ctx, parent, nbr, name, \ 665 CTLTYPE_UINT | CTLFLAG_MPSAFE | (access), \ 666 (ptr), 0, sysctl_handle_int, "IU", \ 667 __DESCR(descr)); \ 668 } \ 669 __ret; \ 670}) 671 672/* Oid for a 64-bit unsigned counter(9). The pointer must be non NULL. */ 673#define SYSCTL_COUNTER_U64(parent, nbr, name, access, ptr, descr) \ 674 SYSCTL_OID(parent, nbr, name, \ 675 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \ 676 (ptr), 0, sysctl_handle_counter_u64, "QU", descr); \ 677 CTASSERT((((access) & CTLTYPE) == 0 || \ 678 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64) && \ 679 sizeof(counter_u64_t) == sizeof(*(ptr)) && \ 680 sizeof(uint64_t) == sizeof(**(ptr))) 681 682#define SYSCTL_ADD_COUNTER_U64(ctx, parent, nbr, name, access, ptr, descr) \ 683({ \ 684 counter_u64_t *__ptr = (ptr); \ 685 CTASSERT(((access) & CTLTYPE) == 0 || \ 686 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64); \ 687 sysctl_add_oid(ctx, parent, nbr, name, \ 688 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \ 689 __ptr, 0, sysctl_handle_counter_u64, "QU", __DESCR(descr)); \ 690}) 691 692/* Oid for an array of counter(9)s. The pointer and length must be non zero. */ 693#define SYSCTL_COUNTER_U64_ARRAY(parent, nbr, name, access, ptr, len, descr) \ 694 SYSCTL_OID(parent, nbr, name, \ 695 CTLTYPE_OPAQUE | CTLFLAG_MPSAFE | (access), \ 696 (ptr), (len), sysctl_handle_counter_u64_array, "S", descr); \ 697 CTASSERT((((access) & CTLTYPE) == 0 || \ 698 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE) && \ 699 sizeof(counter_u64_t) == sizeof(*(ptr)) && \ 700 sizeof(uint64_t) == sizeof(**(ptr))) 701 702#define SYSCTL_ADD_COUNTER_U64_ARRAY(ctx, parent, nbr, name, access, \ 703 ptr, len, descr) \ 704({ \ 705 counter_u64_t *__ptr = (ptr); \ 706 CTASSERT(((access) & CTLTYPE) == 0 || \ 707 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE); \ 708 sysctl_add_oid(ctx, parent, nbr, name, \ 709 CTLTYPE_OPAQUE | CTLFLAG_MPSAFE | (access), \ 710 __ptr, len, sysctl_handle_counter_u64_array, "S", \ 711 __DESCR(descr)); \ 712}) 713 714/* Oid for an opaque object. Specified by a pointer and a length. */ 715#define SYSCTL_OPAQUE(parent, nbr, name, access, ptr, len, fmt, descr) \ 716 SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|(access), \ 717 ptr, len, sysctl_handle_opaque, fmt, descr); \ 718 CTASSERT(((access) & CTLTYPE) == 0 || \ 719 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE) 720 721#define SYSCTL_ADD_OPAQUE(ctx, parent, nbr, name, access, ptr, len, fmt, descr) \ 722({ \ 723 CTASSERT(((access) & CTLTYPE) == 0 || \ 724 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE); \ 725 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_OPAQUE|(access), \ 726 ptr, len, sysctl_handle_opaque, fmt, __DESCR(descr)); \ 727}) 728 729/* Oid for a struct. Specified by a pointer and a type. */ 730#define SYSCTL_STRUCT(parent, nbr, name, access, ptr, type, descr) \ 731 SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|(access), \ 732 ptr, sizeof(struct type), sysctl_handle_opaque, \ 733 "S," #type, descr); \ 734 CTASSERT(((access) & CTLTYPE) == 0 || \ 735 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE) 736 737#define SYSCTL_ADD_STRUCT(ctx, parent, nbr, name, access, ptr, type, descr) \ 738({ \ 739 CTASSERT(((access) & CTLTYPE) == 0 || \ 740 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE); \ 741 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_OPAQUE|(access), \ 742 (ptr), sizeof(struct type), \ 743 sysctl_handle_opaque, "S," #type, __DESCR(descr)); \ 744}) 745 746/* Oid for a procedure. Specified by a pointer and an arg. */ 747#define SYSCTL_PROC(parent, nbr, name, access, ptr, arg, handler, fmt, descr) \ 748 SYSCTL_OID(parent, nbr, name, (access), \ 749 ptr, arg, handler, fmt, descr); \ 750 CTASSERT(((access) & CTLTYPE) != 0) 751 752#define SYSCTL_ADD_PROC(ctx, parent, nbr, name, access, ptr, arg, handler, fmt, descr) \ 753({ \ 754 CTASSERT(((access) & CTLTYPE) != 0); \ 755 sysctl_add_oid(ctx, parent, nbr, name, (access), \ 756 (ptr), (arg), (handler), (fmt), __DESCR(descr)); \ 757}) 758 759/* Oid to handle limits on uma(9) zone specified by pointer. */ 760#define SYSCTL_UMA_MAX(parent, nbr, name, access, ptr, descr) \ 761 SYSCTL_OID(parent, nbr, name, \ 762 CTLTYPE_INT | CTLFLAG_MPSAFE | (access), \ 763 (ptr), 0, sysctl_handle_uma_zone_max, "I", descr); \ 764 CTASSERT(((access) & CTLTYPE) == 0 || \ 765 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT) 766 767#define SYSCTL_ADD_UMA_MAX(ctx, parent, nbr, name, access, ptr, descr) \ 768({ \ 769 uma_zone_t __ptr = (ptr); \ 770 CTASSERT(((access) & CTLTYPE) == 0 || \ 771 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT); \ 772 sysctl_add_oid(ctx, parent, nbr, name, \ 773 CTLTYPE_INT | CTLFLAG_MPSAFE | (access), \ 774 __ptr, 0, sysctl_handle_uma_zone_max, "I", __DESCR(descr)); \ 775}) 776 777/* Oid to obtain current use of uma(9) zone specified by pointer. */ 778#define SYSCTL_UMA_CUR(parent, nbr, name, access, ptr, descr) \ 779 SYSCTL_OID(parent, nbr, name, \ 780 CTLTYPE_INT | CTLFLAG_MPSAFE | CTLFLAG_RD | (access), \ 781 (ptr), 0, sysctl_handle_uma_zone_cur, "I", descr); \ 782 CTASSERT(((access) & CTLTYPE) == 0 || \ 783 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT) 784 785#define SYSCTL_ADD_UMA_CUR(ctx, parent, nbr, name, access, ptr, descr) \ 786({ \ 787 uma_zone_t __ptr = (ptr); \ 788 CTASSERT(((access) & CTLTYPE) == 0 || \ 789 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT); \ 790 sysctl_add_oid(ctx, parent, nbr, name, \ 791 CTLTYPE_INT | CTLFLAG_MPSAFE | CTLFLAG_RD | (access), \ 792 __ptr, 0, sysctl_handle_uma_zone_cur, "I", __DESCR(descr)); \ 793}) 794 795/* 796 * A macro to generate a read-only sysctl to indicate the presence of optional 797 * kernel features. 798 */ 799#define FEATURE(name, desc) \ 800 SYSCTL_INT(_kern_features, OID_AUTO, name, CTLFLAG_RD | CTLFLAG_CAPRD, \ 801 SYSCTL_NULL_INT_PTR, 1, desc) 802 803#endif /* _KERNEL */ 804 805/* 806 * Top-level identifiers 807 */ 808#define CTL_UNSPEC 0 /* unused */ 809#define CTL_KERN 1 /* "high kernel": proc, limits */ 810#define CTL_VM 2 /* virtual memory */ 811#define CTL_VFS 3 /* filesystem, mount type is next */ 812#define CTL_NET 4 /* network, see socket.h */ 813#define CTL_DEBUG 5 /* debugging parameters */ 814#define CTL_HW 6 /* generic cpu/io */ 815#define CTL_MACHDEP 7 /* machine dependent */ 816#define CTL_USER 8 /* user-level */ 817#define CTL_P1003_1B 9 /* POSIX 1003.1B */ 818 819/* 820 * CTL_KERN identifiers 821 */ 822#define KERN_OSTYPE 1 /* string: system version */ 823#define KERN_OSRELEASE 2 /* string: system release */ 824#define KERN_OSREV 3 /* int: system revision */ 825#define KERN_VERSION 4 /* string: compile time info */ 826#define KERN_MAXVNODES 5 /* int: max vnodes */ 827#define KERN_MAXPROC 6 /* int: max processes */ 828#define KERN_MAXFILES 7 /* int: max open files */ 829#define KERN_ARGMAX 8 /* int: max arguments to exec */ 830#define KERN_SECURELVL 9 /* int: system security level */ 831#define KERN_HOSTNAME 10 /* string: hostname */ 832#define KERN_HOSTID 11 /* int: host identifier */ 833#define KERN_CLOCKRATE 12 /* struct: struct clockrate */ 834#define KERN_VNODE 13 /* struct: vnode structures */ 835#define KERN_PROC 14 /* struct: process entries */ 836#define KERN_FILE 15 /* struct: file entries */ 837#define KERN_PROF 16 /* node: kernel profiling info */ 838#define KERN_POSIX1 17 /* int: POSIX.1 version */ 839#define KERN_NGROUPS 18 /* int: # of supplemental group ids */ 840#define KERN_JOB_CONTROL 19 /* int: is job control available */ 841#define KERN_SAVED_IDS 20 /* int: saved set-user/group-ID */ 842#define KERN_BOOTTIME 21 /* struct: time kernel was booted */ 843#define KERN_NISDOMAINNAME 22 /* string: YP domain name */ 844#define KERN_UPDATEINTERVAL 23 /* int: update process sleep time */ 845#define KERN_OSRELDATE 24 /* int: kernel release date */ 846#define KERN_NTP_PLL 25 /* node: NTP PLL control */ 847#define KERN_BOOTFILE 26 /* string: name of booted kernel */ 848#define KERN_MAXFILESPERPROC 27 /* int: max open files per proc */ 849#define KERN_MAXPROCPERUID 28 /* int: max processes per uid */ 850#define KERN_DUMPDEV 29 /* struct cdev *: device to dump on */ 851#define KERN_IPC 30 /* node: anything related to IPC */ 852#define KERN_DUMMY 31 /* unused */ 853#define KERN_PS_STRINGS 32 /* int: address of PS_STRINGS */ 854#define KERN_USRSTACK 33 /* int: address of USRSTACK */ 855#define KERN_LOGSIGEXIT 34 /* int: do we log sigexit procs? */ 856#define KERN_IOV_MAX 35 /* int: value of UIO_MAXIOV */ 857#define KERN_HOSTUUID 36 /* string: host UUID identifier */ 858#define KERN_ARND 37 /* int: from arc4rand() */ 859/* 860 * KERN_PROC subtypes 861 */ 862#define KERN_PROC_ALL 0 /* everything */ 863#define KERN_PROC_PID 1 /* by process id */ 864#define KERN_PROC_PGRP 2 /* by process group id */ 865#define KERN_PROC_SESSION 3 /* by session of pid */ 866#define KERN_PROC_TTY 4 /* by controlling tty */ 867#define KERN_PROC_UID 5 /* by effective uid */ 868#define KERN_PROC_RUID 6 /* by real uid */ 869#define KERN_PROC_ARGS 7 /* get/set arguments/proctitle */ 870#define KERN_PROC_PROC 8 /* only return procs */ 871#define KERN_PROC_SV_NAME 9 /* get syscall vector name */ 872#define KERN_PROC_RGID 10 /* by real group id */ 873#define KERN_PROC_GID 11 /* by effective group id */ 874#define KERN_PROC_PATHNAME 12 /* path to executable */ 875#define KERN_PROC_OVMMAP 13 /* Old VM map entries for process */ 876#define KERN_PROC_OFILEDESC 14 /* Old file descriptors for process */ 877#define KERN_PROC_KSTACK 15 /* Kernel stacks for process */ 878#define KERN_PROC_INC_THREAD 0x10 /* 879 * modifier for pid, pgrp, tty, 880 * uid, ruid, gid, rgid and proc 881 * This effectively uses 16-31 882 */ 883#define KERN_PROC_VMMAP 32 /* VM map entries for process */ 884#define KERN_PROC_FILEDESC 33 /* File descriptors for process */ 885#define KERN_PROC_GROUPS 34 /* process groups */ 886#define KERN_PROC_ENV 35 /* get environment */ 887#define KERN_PROC_AUXV 36 /* get ELF auxiliary vector */ 888#define KERN_PROC_RLIMIT 37 /* process resource limits */ 889#define KERN_PROC_PS_STRINGS 38 /* get ps_strings location */ 890#define KERN_PROC_UMASK 39 /* process umask */ 891#define KERN_PROC_OSREL 40 /* osreldate for process binary */ 892#define KERN_PROC_SIGTRAMP 41 /* signal trampoline location */ 893#define KERN_PROC_CWD 42 /* process current working directory */ 894#define KERN_PROC_NFDS 43 /* number of open file descriptors */ 895 896/* 897 * KERN_IPC identifiers 898 */ 899#define KIPC_MAXSOCKBUF 1 /* int: max size of a socket buffer */ 900#define KIPC_SOCKBUF_WASTE 2 /* int: wastage factor in sockbuf */ 901#define KIPC_SOMAXCONN 3 /* int: max length of connection q */ 902#define KIPC_MAX_LINKHDR 4 /* int: max length of link header */ 903#define KIPC_MAX_PROTOHDR 5 /* int: max length of network header */ 904#define KIPC_MAX_HDR 6 /* int: max total length of headers */ 905#define KIPC_MAX_DATALEN 7 /* int: max length of data? */ 906 907/* 908 * CTL_HW identifiers 909 */ 910#define HW_MACHINE 1 /* string: machine class */ 911#define HW_MODEL 2 /* string: specific machine model */ 912#define HW_NCPU 3 /* int: number of cpus */ 913#define HW_BYTEORDER 4 /* int: machine byte order */ 914#define HW_PHYSMEM 5 /* int: total memory */ 915#define HW_USERMEM 6 /* int: non-kernel memory */ 916#define HW_PAGESIZE 7 /* int: software page size */ 917#define HW_DISKNAMES 8 /* strings: disk drive names */ 918#define HW_DISKSTATS 9 /* struct: diskstats[] */ 919#define HW_FLOATINGPT 10 /* int: has HW floating point? */ 920#define HW_MACHINE_ARCH 11 /* string: machine architecture */ 921#define HW_REALMEM 12 /* int: 'real' memory */ 922 923/* 924 * CTL_USER definitions 925 */ 926#define USER_CS_PATH 1 /* string: _CS_PATH */ 927#define USER_BC_BASE_MAX 2 /* int: BC_BASE_MAX */ 928#define USER_BC_DIM_MAX 3 /* int: BC_DIM_MAX */ 929#define USER_BC_SCALE_MAX 4 /* int: BC_SCALE_MAX */ 930#define USER_BC_STRING_MAX 5 /* int: BC_STRING_MAX */ 931#define USER_COLL_WEIGHTS_MAX 6 /* int: COLL_WEIGHTS_MAX */ 932#define USER_EXPR_NEST_MAX 7 /* int: EXPR_NEST_MAX */ 933#define USER_LINE_MAX 8 /* int: LINE_MAX */ 934#define USER_RE_DUP_MAX 9 /* int: RE_DUP_MAX */ 935#define USER_POSIX2_VERSION 10 /* int: POSIX2_VERSION */ 936#define USER_POSIX2_C_BIND 11 /* int: POSIX2_C_BIND */ 937#define USER_POSIX2_C_DEV 12 /* int: POSIX2_C_DEV */ 938#define USER_POSIX2_CHAR_TERM 13 /* int: POSIX2_CHAR_TERM */ 939#define USER_POSIX2_FORT_DEV 14 /* int: POSIX2_FORT_DEV */ 940#define USER_POSIX2_FORT_RUN 15 /* int: POSIX2_FORT_RUN */ 941#define USER_POSIX2_LOCALEDEF 16 /* int: POSIX2_LOCALEDEF */ 942#define USER_POSIX2_SW_DEV 17 /* int: POSIX2_SW_DEV */ 943#define USER_POSIX2_UPE 18 /* int: POSIX2_UPE */ 944#define USER_STREAM_MAX 19 /* int: POSIX2_STREAM_MAX */ 945#define USER_TZNAME_MAX 20 /* int: POSIX2_TZNAME_MAX */ 946 947#define CTL_P1003_1B_ASYNCHRONOUS_IO 1 /* boolean */ 948#define CTL_P1003_1B_MAPPED_FILES 2 /* boolean */ 949#define CTL_P1003_1B_MEMLOCK 3 /* boolean */ 950#define CTL_P1003_1B_MEMLOCK_RANGE 4 /* boolean */ 951#define CTL_P1003_1B_MEMORY_PROTECTION 5 /* boolean */ 952#define CTL_P1003_1B_MESSAGE_PASSING 6 /* boolean */ 953#define CTL_P1003_1B_PRIORITIZED_IO 7 /* boolean */ 954#define CTL_P1003_1B_PRIORITY_SCHEDULING 8 /* boolean */ 955#define CTL_P1003_1B_REALTIME_SIGNALS 9 /* boolean */ 956#define CTL_P1003_1B_SEMAPHORES 10 /* boolean */ 957#define CTL_P1003_1B_FSYNC 11 /* boolean */ 958#define CTL_P1003_1B_SHARED_MEMORY_OBJECTS 12 /* boolean */ 959#define CTL_P1003_1B_SYNCHRONIZED_IO 13 /* boolean */ 960#define CTL_P1003_1B_TIMERS 14 /* boolean */ 961#define CTL_P1003_1B_AIO_LISTIO_MAX 15 /* int */ 962#define CTL_P1003_1B_AIO_MAX 16 /* int */ 963#define CTL_P1003_1B_AIO_PRIO_DELTA_MAX 17 /* int */ 964#define CTL_P1003_1B_DELAYTIMER_MAX 18 /* int */ 965#define CTL_P1003_1B_MQ_OPEN_MAX 19 /* int */ 966#define CTL_P1003_1B_PAGESIZE 20 /* int */ 967#define CTL_P1003_1B_RTSIG_MAX 21 /* int */ 968#define CTL_P1003_1B_SEM_NSEMS_MAX 22 /* int */ 969#define CTL_P1003_1B_SEM_VALUE_MAX 23 /* int */ 970#define CTL_P1003_1B_SIGQUEUE_MAX 24 /* int */ 971#define CTL_P1003_1B_TIMER_MAX 25 /* int */ 972 973#define CTL_P1003_1B_MAXID 26 974 975#ifdef _KERNEL 976 977/* 978 * Declare some common oids. 979 */ 980extern struct sysctl_oid_list sysctl__children; 981SYSCTL_DECL(_kern); 982SYSCTL_DECL(_kern_features); 983SYSCTL_DECL(_kern_ipc); 984SYSCTL_DECL(_kern_proc); 985SYSCTL_DECL(_kern_sched); 986SYSCTL_DECL(_kern_sched_stats); 987SYSCTL_DECL(_sysctl); 988SYSCTL_DECL(_vm); 989SYSCTL_DECL(_vm_stats); 990SYSCTL_DECL(_vm_stats_misc); 991SYSCTL_DECL(_vfs); 992SYSCTL_DECL(_net); 993SYSCTL_DECL(_debug); 994SYSCTL_DECL(_debug_sizeof); 995SYSCTL_DECL(_dev); 996SYSCTL_DECL(_hw); 997SYSCTL_DECL(_hw_bus); 998SYSCTL_DECL(_hw_bus_devices); 999SYSCTL_DECL(_hw_bus_info); 1000SYSCTL_DECL(_machdep); 1001SYSCTL_DECL(_user); 1002SYSCTL_DECL(_compat); 1003SYSCTL_DECL(_regression); 1004SYSCTL_DECL(_security); 1005SYSCTL_DECL(_security_bsd); 1006 1007extern char machine[]; 1008extern char osrelease[]; 1009extern char ostype[]; 1010extern char kern_ident[]; 1011 1012/* Dynamic oid handling */ 1013struct sysctl_oid *sysctl_add_oid(struct sysctl_ctx_list *clist, 1014 struct sysctl_oid_list *parent, int nbr, const char *name, int kind, 1015 void *arg1, intmax_t arg2, int (*handler)(SYSCTL_HANDLER_ARGS), 1016 const char *fmt, const char *descr); 1017int sysctl_remove_name(struct sysctl_oid *parent, const char *name, int del, 1018 int recurse); 1019void sysctl_rename_oid(struct sysctl_oid *oidp, const char *name); 1020int sysctl_move_oid(struct sysctl_oid *oidp, 1021 struct sysctl_oid_list *parent); 1022int sysctl_remove_oid(struct sysctl_oid *oidp, int del, int recurse); 1023int sysctl_ctx_init(struct sysctl_ctx_list *clist); 1024int sysctl_ctx_free(struct sysctl_ctx_list *clist); 1025struct sysctl_ctx_entry *sysctl_ctx_entry_add(struct sysctl_ctx_list *clist, 1026 struct sysctl_oid *oidp); 1027struct sysctl_ctx_entry *sysctl_ctx_entry_find(struct sysctl_ctx_list *clist, 1028 struct sysctl_oid *oidp); 1029int sysctl_ctx_entry_del(struct sysctl_ctx_list *clist, 1030 struct sysctl_oid *oidp); 1031 1032int kernel_sysctl(struct thread *td, int *name, u_int namelen, void *old, 1033 size_t *oldlenp, void *new, size_t newlen, size_t *retval, 1034 int flags); 1035int kernel_sysctlbyname(struct thread *td, char *name, void *old, 1036 size_t *oldlenp, void *new, size_t newlen, size_t *retval, 1037 int flags); 1038int userland_sysctl(struct thread *td, int *name, u_int namelen, void *old, 1039 size_t *oldlenp, int inkernel, void *new, size_t newlen, 1040 size_t *retval, int flags); 1041int sysctl_find_oid(int *name, u_int namelen, struct sysctl_oid **noid, 1042 int *nindx, struct sysctl_req *req); 1043void sysctl_wlock(void); 1044void sysctl_wunlock(void); 1045int sysctl_wire_old_buffer(struct sysctl_req *req, size_t len); 1046 1047struct sbuf; 1048struct sbuf *sbuf_new_for_sysctl(struct sbuf *, char *, int, 1049 struct sysctl_req *); 1050#else /* !_KERNEL */ 1051#include <sys/cdefs.h> 1052 1053__BEGIN_DECLS 1054int sysctl(const int *, u_int, void *, size_t *, const void *, size_t); 1055int sysctlbyname(const char *, void *, size_t *, const void *, size_t); 1056int sysctlnametomib(const char *, int *, size_t *); 1057__END_DECLS 1058#endif /* _KERNEL */ 1059 1060#endif /* !_SYS_SYSCTL_H_ */ 1061