sysctl.h revision 298981
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: head/sys/sys/sysctl.h 298981 2016-05-03 15:14:17Z pfg $ 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_ANYBODY 0x10000000 /* All users can set this var */ 87#define CTLFLAG_SECURE 0x08000000 /* Permit set only if securelevel<=0 */ 88#define CTLFLAG_PRISON 0x04000000 /* Prisoned roots can fiddle */ 89#define CTLFLAG_DYN 0x02000000 /* Dynamic oid - can be freed */ 90#define CTLFLAG_SKIP 0x01000000 /* Skip this sysctl when listing */ 91#define CTLMASK_SECURE 0x00F00000 /* Secure level */ 92#define CTLFLAG_TUN 0x00080000 /* Default value is loaded from getenv() */ 93#define CTLFLAG_RDTUN (CTLFLAG_RD|CTLFLAG_TUN) 94#define CTLFLAG_RWTUN (CTLFLAG_RW|CTLFLAG_TUN) 95#define CTLFLAG_MPSAFE 0x00040000 /* Handler is MP safe */ 96#define CTLFLAG_VNET 0x00020000 /* Prisons with vnet can fiddle */ 97#define CTLFLAG_DYING 0x00010000 /* Oid is being removed */ 98#define CTLFLAG_CAPRD 0x00008000 /* Can be read in capability mode */ 99#define CTLFLAG_CAPWR 0x00004000 /* Can be written in capability mode */ 100#define CTLFLAG_STATS 0x00002000 /* Statistics, not a tuneable */ 101#define CTLFLAG_NOFETCH 0x00001000 /* Don't fetch tunable from getenv() */ 102#define CTLFLAG_CAPRW (CTLFLAG_CAPRD|CTLFLAG_CAPWR) 103 104/* 105 * Secure level. Note that CTLFLAG_SECURE == CTLFLAG_SECURE1. 106 * 107 * Secure when the securelevel is raised to at least N. 108 */ 109#define CTLSHIFT_SECURE 20 110#define CTLFLAG_SECURE1 (CTLFLAG_SECURE | (0 << CTLSHIFT_SECURE)) 111#define CTLFLAG_SECURE2 (CTLFLAG_SECURE | (1 << CTLSHIFT_SECURE)) 112#define CTLFLAG_SECURE3 (CTLFLAG_SECURE | (2 << CTLSHIFT_SECURE)) 113 114/* 115 * USE THIS instead of a hardwired number from the categories below 116 * to get dynamically assigned sysctl entries using the linker-set 117 * technology. This is the way nearly all new sysctl variables should 118 * be implemented. 119 * e.g. SYSCTL_INT(_parent, OID_AUTO, name, CTLFLAG_RW, &variable, 0, ""); 120 */ 121#define OID_AUTO (-1) 122 123/* 124 * The starting number for dynamically-assigned entries. WARNING! 125 * ALL static sysctl entries should have numbers LESS than this! 126 */ 127#define CTL_AUTO_START 0x100 128 129#ifdef _KERNEL 130#include <sys/linker_set.h> 131 132#ifdef KLD_MODULE 133/* XXX allow overspecification of type in external kernel modules */ 134#define SYSCTL_CT_ASSERT_MASK CTLTYPE 135#else 136#define SYSCTL_CT_ASSERT_MASK 0 137#endif 138 139#define SYSCTL_HANDLER_ARGS struct sysctl_oid *oidp, void *arg1, \ 140 intmax_t arg2, struct sysctl_req *req 141 142/* definitions for sysctl_req 'lock' member */ 143#define REQ_UNWIRED 1 144#define REQ_WIRED 2 145 146/* definitions for sysctl_req 'flags' member */ 147#if defined(__amd64__) || defined(__powerpc64__) ||\ 148 (defined(__mips__) && defined(__mips_n64)) 149#define SCTL_MASK32 1 /* 32 bit emulation */ 150#endif 151 152/* 153 * This describes the access space for a sysctl request. This is needed 154 * so that we can use the interface from the kernel or from user-space. 155 */ 156struct sysctl_req { 157 struct thread *td; /* used for access checking */ 158 int lock; /* wiring state */ 159 void *oldptr; 160 size_t oldlen; 161 size_t oldidx; 162 int (*oldfunc)(struct sysctl_req *, const void *, size_t); 163 void *newptr; 164 size_t newlen; 165 size_t newidx; 166 int (*newfunc)(struct sysctl_req *, void *, size_t); 167 size_t validlen; 168 int flags; 169}; 170 171SLIST_HEAD(sysctl_oid_list, sysctl_oid); 172 173/* 174 * This describes one "oid" in the MIB tree. Potentially more nodes can 175 * be hidden behind it, expanded by the handler. 176 */ 177struct sysctl_oid { 178 struct sysctl_oid_list oid_children; 179 struct sysctl_oid_list *oid_parent; 180 SLIST_ENTRY(sysctl_oid) oid_link; 181 int oid_number; 182 u_int oid_kind; 183 void *oid_arg1; 184 intmax_t oid_arg2; 185 const char *oid_name; 186 int (*oid_handler)(SYSCTL_HANDLER_ARGS); 187 const char *oid_fmt; 188 int oid_refcnt; 189 u_int oid_running; 190 const char *oid_descr; 191}; 192 193#define SYSCTL_IN(r, p, l) (r->newfunc)(r, p, l) 194#define SYSCTL_OUT(r, p, l) (r->oldfunc)(r, p, l) 195#define SYSCTL_OUT_STR(r, p) (r->oldfunc)(r, p, strlen(p) + 1) 196 197int sysctl_handle_8(SYSCTL_HANDLER_ARGS); 198int sysctl_handle_16(SYSCTL_HANDLER_ARGS); 199int sysctl_handle_32(SYSCTL_HANDLER_ARGS); 200int sysctl_handle_64(SYSCTL_HANDLER_ARGS); 201int sysctl_handle_int(SYSCTL_HANDLER_ARGS); 202int sysctl_msec_to_ticks(SYSCTL_HANDLER_ARGS); 203int sysctl_handle_long(SYSCTL_HANDLER_ARGS); 204int sysctl_handle_string(SYSCTL_HANDLER_ARGS); 205int sysctl_handle_opaque(SYSCTL_HANDLER_ARGS); 206int sysctl_handle_counter_u64(SYSCTL_HANDLER_ARGS); 207int sysctl_handle_counter_u64_array(SYSCTL_HANDLER_ARGS); 208 209int sysctl_handle_uma_zone_max(SYSCTL_HANDLER_ARGS); 210int sysctl_handle_uma_zone_cur(SYSCTL_HANDLER_ARGS); 211 212int sysctl_dpcpu_int(SYSCTL_HANDLER_ARGS); 213int sysctl_dpcpu_long(SYSCTL_HANDLER_ARGS); 214int sysctl_dpcpu_quad(SYSCTL_HANDLER_ARGS); 215 216/* 217 * These functions are used to add/remove an oid from the mib. 218 */ 219void sysctl_register_oid(struct sysctl_oid *oidp); 220void sysctl_unregister_oid(struct sysctl_oid *oidp); 221 222/* Declare a static oid to allow child oids to be added to it. */ 223#define SYSCTL_DECL(name) \ 224 extern struct sysctl_oid sysctl__##name 225 226/* Hide these in macros. */ 227#define SYSCTL_CHILDREN(oid_ptr) (&(oid_ptr)->oid_children) 228#define SYSCTL_PARENT(oid_ptr) \ 229 (((oid_ptr)->oid_parent != &sysctl__children) ? \ 230 __containerof((oid_ptr)->oid_parent, struct sysctl_oid, \ 231 oid_children) : (struct sysctl_oid *)NULL) 232#define SYSCTL_STATIC_CHILDREN(oid_name) (&sysctl__##oid_name.oid_children) 233 234/* === Structs and macros related to context handling. === */ 235 236/* All dynamically created sysctls can be tracked in a context list. */ 237struct sysctl_ctx_entry { 238 struct sysctl_oid *entry; 239 TAILQ_ENTRY(sysctl_ctx_entry) link; 240}; 241 242TAILQ_HEAD(sysctl_ctx_list, sysctl_ctx_entry); 243 244#define SYSCTL_NODE_CHILDREN(parent, name) \ 245 sysctl__##parent##_##name.oid_children 246 247#ifndef NO_SYSCTL_DESCR 248#define __DESCR(d) d 249#else 250#define __DESCR(d) "" 251#endif 252 253/* This macro is only for internal use */ 254#define SYSCTL_OID_RAW(id, parent_child_head, nbr, name, kind, a1, a2, handler, fmt, descr) \ 255 struct sysctl_oid id = { \ 256 .oid_parent = (parent_child_head), \ 257 .oid_children = SLIST_HEAD_INITIALIZER(&id.oid_children), \ 258 .oid_number = (nbr), \ 259 .oid_kind = (kind), \ 260 .oid_arg1 = (a1), \ 261 .oid_arg2 = (a2), \ 262 .oid_name = (name), \ 263 .oid_handler = (handler), \ 264 .oid_fmt = (fmt), \ 265 .oid_descr = __DESCR(descr) \ 266 }; \ 267 DATA_SET(sysctl_set, id) 268 269/* This constructs a static "raw" MIB oid. */ 270#define SYSCTL_OID(parent, nbr, name, kind, a1, a2, handler, fmt, descr) \ 271 static SYSCTL_OID_RAW(sysctl__##parent##_##name, \ 272 SYSCTL_CHILDREN(&sysctl__##parent), \ 273 nbr, #name, kind, a1, a2, handler, fmt, descr) 274 275/* This constructs a global "raw" MIB oid. */ 276#define SYSCTL_OID_GLOBAL(parent, nbr, name, kind, a1, a2, handler, fmt, descr) \ 277 SYSCTL_OID_RAW(sysctl__##parent##_##name, \ 278 SYSCTL_CHILDREN(&sysctl__##parent), \ 279 nbr, #name, kind, a1, a2, handler, fmt, descr) 280 281#define SYSCTL_ADD_OID(ctx, parent, nbr, name, kind, a1, a2, handler, fmt, descr) \ 282 sysctl_add_oid(ctx, parent, nbr, name, kind, a1, a2, handler, fmt, __DESCR(descr)) 283 284/* This constructs a root node from which other nodes can hang. */ 285#define SYSCTL_ROOT_NODE(nbr, name, access, handler, descr) \ 286 SYSCTL_OID_RAW(sysctl___##name, &sysctl__children, \ 287 nbr, #name, CTLTYPE_NODE|(access), NULL, 0, \ 288 handler, "N", descr); \ 289 CTASSERT(((access) & CTLTYPE) == 0 || \ 290 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_NODE) 291 292/* This constructs a node from which other oids can hang. */ 293#define SYSCTL_NODE(parent, nbr, name, access, handler, descr) \ 294 SYSCTL_OID_GLOBAL(parent, nbr, name, CTLTYPE_NODE|(access), \ 295 NULL, 0, handler, "N", descr); \ 296 CTASSERT(((access) & CTLTYPE) == 0 || \ 297 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_NODE) 298 299#define SYSCTL_ADD_NODE(ctx, parent, nbr, name, access, handler, descr) \ 300({ \ 301 CTASSERT(((access) & CTLTYPE) == 0 || \ 302 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_NODE); \ 303 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_NODE|(access), \ 304 NULL, 0, handler, "N", __DESCR(descr)); \ 305}) 306 307#define SYSCTL_ADD_ROOT_NODE(ctx, nbr, name, access, handler, descr) \ 308({ \ 309 CTASSERT(((access) & CTLTYPE) == 0 || \ 310 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_NODE); \ 311 sysctl_add_oid(ctx, &sysctl__children, nbr, name, \ 312 CTLTYPE_NODE|(access), \ 313 NULL, 0, handler, "N", __DESCR(descr)); \ 314}) 315 316/* Oid for a string. len can be 0 to indicate '\0' termination. */ 317#define SYSCTL_STRING(parent, nbr, name, access, arg, len, descr) \ 318 SYSCTL_OID(parent, nbr, name, CTLTYPE_STRING|(access), \ 319 arg, len, sysctl_handle_string, "A", descr); \ 320 CTASSERT(((access) & CTLTYPE) == 0 || \ 321 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_STRING) 322 323#define SYSCTL_ADD_STRING(ctx, parent, nbr, name, access, arg, len, descr) \ 324({ \ 325 char *__arg = (arg); \ 326 CTASSERT(((access) & CTLTYPE) == 0 || \ 327 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_STRING); \ 328 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_STRING|(access), \ 329 __arg, len, sysctl_handle_string, "A", __DESCR(descr)); \ 330}) 331 332/* Oid for a signed 8-bit int. If ptr is NULL, val is returned. */ 333#define SYSCTL_NULL_S8_PTR ((int8_t *)NULL) 334#define SYSCTL_S8(parent, nbr, name, access, ptr, val, descr) \ 335 SYSCTL_OID(parent, nbr, name, \ 336 CTLTYPE_S8 | CTLFLAG_MPSAFE | (access), \ 337 ptr, val, sysctl_handle_8, "C", descr); \ 338 CTASSERT((((access) & CTLTYPE) == 0 || \ 339 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S8) && \ 340 sizeof(int8_t) == sizeof(*(ptr))) 341 342#define SYSCTL_ADD_S8(ctx, parent, nbr, name, access, ptr, val, descr) \ 343({ \ 344 int8_t *__ptr = (ptr); \ 345 CTASSERT(((access) & CTLTYPE) == 0 || \ 346 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S8); \ 347 sysctl_add_oid(ctx, parent, nbr, name, \ 348 CTLTYPE_S8 | CTLFLAG_MPSAFE | (access), \ 349 __ptr, val, sysctl_handle_8, "C", __DESCR(descr)); \ 350}) 351 352/* Oid for an unsigned 8-bit int. If ptr is NULL, val is returned. */ 353#define SYSCTL_NULL_U8_PTR ((uint8_t *)NULL) 354#define SYSCTL_U8(parent, nbr, name, access, ptr, val, descr) \ 355 SYSCTL_OID(parent, nbr, name, \ 356 CTLTYPE_U8 | CTLFLAG_MPSAFE | (access), \ 357 ptr, val, sysctl_handle_8, "CU", descr); \ 358 CTASSERT((((access) & CTLTYPE) == 0 || \ 359 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U8) && \ 360 sizeof(uint8_t) == sizeof(*(ptr))) 361 362#define SYSCTL_ADD_U8(ctx, parent, nbr, name, access, ptr, val, descr) \ 363({ \ 364 uint8_t *__ptr = (ptr); \ 365 CTASSERT(((access) & CTLTYPE) == 0 || \ 366 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U8); \ 367 sysctl_add_oid(ctx, parent, nbr, name, \ 368 CTLTYPE_U8 | CTLFLAG_MPSAFE | (access), \ 369 __ptr, val, sysctl_handle_8, "CU", __DESCR(descr)); \ 370}) 371 372/* Oid for a signed 16-bit int. If ptr is NULL, val is returned. */ 373#define SYSCTL_NULL_S16_PTR ((int16_t *)NULL) 374#define SYSCTL_S16(parent, nbr, name, access, ptr, val, descr) \ 375 SYSCTL_OID(parent, nbr, name, \ 376 CTLTYPE_S16 | CTLFLAG_MPSAFE | (access), \ 377 ptr, val, sysctl_handle_16, "S", descr); \ 378 CTASSERT((((access) & CTLTYPE) == 0 || \ 379 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S16) && \ 380 sizeof(int16_t) == sizeof(*(ptr))) 381 382#define SYSCTL_ADD_S16(ctx, parent, nbr, name, access, ptr, val, descr) \ 383({ \ 384 int16_t *__ptr = (ptr); \ 385 CTASSERT(((access) & CTLTYPE) == 0 || \ 386 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S16); \ 387 sysctl_add_oid(ctx, parent, nbr, name, \ 388 CTLTYPE_S16 | CTLFLAG_MPSAFE | (access), \ 389 __ptr, val, sysctl_handle_16, "S", __DESCR(descr)); \ 390}) 391 392/* Oid for an unsigned 16-bit int. If ptr is NULL, val is returned. */ 393#define SYSCTL_NULL_U16_PTR ((uint16_t *)NULL) 394#define SYSCTL_U16(parent, nbr, name, access, ptr, val, descr) \ 395 SYSCTL_OID(parent, nbr, name, \ 396 CTLTYPE_U16 | CTLFLAG_MPSAFE | (access), \ 397 ptr, val, sysctl_handle_16, "SU", descr); \ 398 CTASSERT((((access) & CTLTYPE) == 0 || \ 399 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U16) && \ 400 sizeof(uint16_t) == sizeof(*(ptr))) 401 402#define SYSCTL_ADD_U16(ctx, parent, nbr, name, access, ptr, val, descr) \ 403({ \ 404 uint16_t *__ptr = (ptr); \ 405 CTASSERT(((access) & CTLTYPE) == 0 || \ 406 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U16); \ 407 sysctl_add_oid(ctx, parent, nbr, name, \ 408 CTLTYPE_U16 | CTLFLAG_MPSAFE | (access), \ 409 __ptr, val, sysctl_handle_16, "SU", __DESCR(descr)); \ 410}) 411 412/* Oid for a signed 32-bit int. If ptr is NULL, val is returned. */ 413#define SYSCTL_NULL_S32_PTR ((int32_t *)NULL) 414#define SYSCTL_S32(parent, nbr, name, access, ptr, val, descr) \ 415 SYSCTL_OID(parent, nbr, name, \ 416 CTLTYPE_S32 | CTLFLAG_MPSAFE | (access), \ 417 ptr, val, sysctl_handle_32, "I", descr); \ 418 CTASSERT((((access) & CTLTYPE) == 0 || \ 419 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S32) && \ 420 sizeof(int32_t) == sizeof(*(ptr))) 421 422#define SYSCTL_ADD_S32(ctx, parent, nbr, name, access, ptr, val, descr) \ 423({ \ 424 int32_t *__ptr = (ptr); \ 425 CTASSERT(((access) & CTLTYPE) == 0 || \ 426 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S32); \ 427 sysctl_add_oid(ctx, parent, nbr, name, \ 428 CTLTYPE_S32 | CTLFLAG_MPSAFE | (access), \ 429 __ptr, val, sysctl_handle_32, "I", __DESCR(descr)); \ 430}) 431 432/* Oid for an unsigned 32-bit int. If ptr is NULL, val is returned. */ 433#define SYSCTL_NULL_U32_PTR ((uint32_t *)NULL) 434#define SYSCTL_U32(parent, nbr, name, access, ptr, val, descr) \ 435 SYSCTL_OID(parent, nbr, name, \ 436 CTLTYPE_U32 | CTLFLAG_MPSAFE | (access), \ 437 ptr, val, sysctl_handle_32, "IU", descr); \ 438 CTASSERT((((access) & CTLTYPE) == 0 || \ 439 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U32) && \ 440 sizeof(uint32_t) == sizeof(*(ptr))) 441 442#define SYSCTL_ADD_U32(ctx, parent, nbr, name, access, ptr, val, descr) \ 443({ \ 444 uint32_t *__ptr = (ptr); \ 445 CTASSERT(((access) & CTLTYPE) == 0 || \ 446 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U32); \ 447 sysctl_add_oid(ctx, parent, nbr, name, \ 448 CTLTYPE_U32 | CTLFLAG_MPSAFE | (access), \ 449 __ptr, val, sysctl_handle_32, "IU", __DESCR(descr)); \ 450}) 451 452/* Oid for a signed 64-bit int. If ptr is NULL, val is returned. */ 453#define SYSCTL_NULL_S64_PTR ((int64_t *)NULL) 454#define SYSCTL_S64(parent, nbr, name, access, ptr, val, descr) \ 455 SYSCTL_OID(parent, nbr, name, \ 456 CTLTYPE_S64 | CTLFLAG_MPSAFE | (access), \ 457 ptr, val, sysctl_handle_64, "Q", descr); \ 458 CTASSERT((((access) & CTLTYPE) == 0 || \ 459 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64) && \ 460 sizeof(int64_t) == sizeof(*(ptr))) 461 462#define SYSCTL_ADD_S64(ctx, parent, nbr, name, access, ptr, val, descr) \ 463({ \ 464 int64_t *__ptr = (ptr); \ 465 CTASSERT(((access) & CTLTYPE) == 0 || \ 466 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64); \ 467 sysctl_add_oid(ctx, parent, nbr, name, \ 468 CTLTYPE_S64 | CTLFLAG_MPSAFE | (access), \ 469 __ptr, val, sysctl_handle_64, "Q", __DESCR(descr)); \ 470}) 471 472/* Oid for an unsigned 64-bit int. If ptr is NULL, val is returned. */ 473#define SYSCTL_NULL_U64_PTR ((uint64_t *)NULL) 474#define SYSCTL_U64(parent, nbr, name, access, ptr, val, descr) \ 475 SYSCTL_OID(parent, nbr, name, \ 476 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \ 477 ptr, val, sysctl_handle_64, "QU", descr); \ 478 CTASSERT((((access) & CTLTYPE) == 0 || \ 479 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64) && \ 480 sizeof(uint64_t) == sizeof(*(ptr))) 481 482#define SYSCTL_ADD_U64(ctx, parent, nbr, name, access, ptr, val, descr) \ 483({ \ 484 uint64_t *__ptr = (ptr); \ 485 CTASSERT(((access) & CTLTYPE) == 0 || \ 486 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64); \ 487 sysctl_add_oid(ctx, parent, nbr, name, \ 488 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \ 489 __ptr, val, sysctl_handle_64, "QU", __DESCR(descr)); \ 490}) 491 492/* Oid for an int. If ptr is SYSCTL_NULL_INT_PTR, val is returned. */ 493#define SYSCTL_NULL_INT_PTR ((int *)NULL) 494#define SYSCTL_INT(parent, nbr, name, access, ptr, val, descr) \ 495 SYSCTL_OID(parent, nbr, name, \ 496 CTLTYPE_INT | CTLFLAG_MPSAFE | (access), \ 497 ptr, val, sysctl_handle_int, "I", descr); \ 498 CTASSERT((((access) & CTLTYPE) == 0 || \ 499 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT) && \ 500 sizeof(int) == sizeof(*(ptr))) 501 502#define SYSCTL_ADD_INT(ctx, parent, nbr, name, access, ptr, val, descr) \ 503({ \ 504 int *__ptr = (ptr); \ 505 CTASSERT(((access) & CTLTYPE) == 0 || \ 506 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT); \ 507 sysctl_add_oid(ctx, parent, nbr, name, \ 508 CTLTYPE_INT | CTLFLAG_MPSAFE | (access), \ 509 __ptr, val, sysctl_handle_int, "I", __DESCR(descr)); \ 510}) 511 512/* Oid for an unsigned int. If ptr is NULL, val is returned. */ 513#define SYSCTL_NULL_UINT_PTR ((unsigned *)NULL) 514#define SYSCTL_UINT(parent, nbr, name, access, ptr, val, descr) \ 515 SYSCTL_OID(parent, nbr, name, \ 516 CTLTYPE_UINT | CTLFLAG_MPSAFE | (access), \ 517 ptr, val, sysctl_handle_int, "IU", descr); \ 518 CTASSERT((((access) & CTLTYPE) == 0 || \ 519 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_UINT) && \ 520 sizeof(unsigned) == sizeof(*(ptr))) 521 522#define SYSCTL_ADD_UINT(ctx, parent, nbr, name, access, ptr, val, descr) \ 523({ \ 524 unsigned *__ptr = (ptr); \ 525 CTASSERT(((access) & CTLTYPE) == 0 || \ 526 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_UINT); \ 527 sysctl_add_oid(ctx, parent, nbr, name, \ 528 CTLTYPE_UINT | CTLFLAG_MPSAFE | (access), \ 529 __ptr, val, sysctl_handle_int, "IU", __DESCR(descr)); \ 530}) 531 532/* Oid for a long. The pointer must be non NULL. */ 533#define SYSCTL_NULL_LONG_PTR ((long *)NULL) 534#define SYSCTL_LONG(parent, nbr, name, access, ptr, val, descr) \ 535 SYSCTL_OID(parent, nbr, name, \ 536 CTLTYPE_LONG | CTLFLAG_MPSAFE | (access), \ 537 ptr, val, sysctl_handle_long, "L", descr); \ 538 CTASSERT((((access) & CTLTYPE) == 0 || \ 539 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_LONG) && \ 540 sizeof(long) == sizeof(*(ptr))) 541 542#define SYSCTL_ADD_LONG(ctx, parent, nbr, name, access, ptr, descr) \ 543({ \ 544 long *__ptr = (ptr); \ 545 CTASSERT(((access) & CTLTYPE) == 0 || \ 546 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_LONG); \ 547 sysctl_add_oid(ctx, parent, nbr, name, \ 548 CTLTYPE_LONG | CTLFLAG_MPSAFE | (access), \ 549 __ptr, 0, sysctl_handle_long, "L", __DESCR(descr)); \ 550}) 551 552/* Oid for an unsigned long. The pointer must be non NULL. */ 553#define SYSCTL_NULL_ULONG_PTR ((unsigned long *)NULL) 554#define SYSCTL_ULONG(parent, nbr, name, access, ptr, val, descr) \ 555 SYSCTL_OID(parent, nbr, name, \ 556 CTLTYPE_ULONG | CTLFLAG_MPSAFE | (access), \ 557 ptr, val, sysctl_handle_long, "LU", descr); \ 558 CTASSERT((((access) & CTLTYPE) == 0 || \ 559 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_ULONG) && \ 560 sizeof(unsigned long) == sizeof(*(ptr))) 561 562#define SYSCTL_ADD_ULONG(ctx, parent, nbr, name, access, ptr, descr) \ 563({ \ 564 unsigned long *__ptr = (ptr); \ 565 CTASSERT(((access) & CTLTYPE) == 0 || \ 566 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_ULONG); \ 567 sysctl_add_oid(ctx, parent, nbr, name, \ 568 CTLTYPE_ULONG | CTLFLAG_MPSAFE | (access), \ 569 __ptr, 0, sysctl_handle_long, "LU", __DESCR(descr)); \ 570}) 571 572/* Oid for a quad. The pointer must be non NULL. */ 573#define SYSCTL_NULL_QUAD_PTR ((int64_t *)NULL) 574#define SYSCTL_QUAD(parent, nbr, name, access, ptr, val, descr) \ 575 SYSCTL_OID(parent, nbr, name, \ 576 CTLTYPE_S64 | CTLFLAG_MPSAFE | (access), \ 577 ptr, val, sysctl_handle_64, "Q", descr); \ 578 CTASSERT((((access) & CTLTYPE) == 0 || \ 579 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64) && \ 580 sizeof(int64_t) == sizeof(*(ptr))) 581 582#define SYSCTL_ADD_QUAD(ctx, parent, nbr, name, access, ptr, descr) \ 583({ \ 584 int64_t *__ptr = (ptr); \ 585 CTASSERT(((access) & CTLTYPE) == 0 || \ 586 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64); \ 587 sysctl_add_oid(ctx, parent, nbr, name, \ 588 CTLTYPE_S64 | CTLFLAG_MPSAFE | (access), \ 589 __ptr, 0, sysctl_handle_64, "Q", __DESCR(descr)); \ 590}) 591 592#define SYSCTL_NULL_UQUAD_PTR ((uint64_t *)NULL) 593#define SYSCTL_UQUAD(parent, nbr, name, access, ptr, val, descr) \ 594 SYSCTL_OID(parent, nbr, name, \ 595 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \ 596 ptr, val, sysctl_handle_64, "QU", descr); \ 597 CTASSERT((((access) & CTLTYPE) == 0 || \ 598 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64) && \ 599 sizeof(uint64_t) == sizeof(*(ptr))) 600 601#define SYSCTL_ADD_UQUAD(ctx, parent, nbr, name, access, ptr, descr) \ 602({ \ 603 uint64_t *__ptr = (ptr); \ 604 CTASSERT(((access) & CTLTYPE) == 0 || \ 605 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64); \ 606 sysctl_add_oid(ctx, parent, nbr, name, \ 607 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \ 608 __ptr, 0, sysctl_handle_64, "QU", __DESCR(descr)); \ 609}) 610 611/* Oid for a CPU dependent variable */ 612#define SYSCTL_ADD_UAUTO(ctx, parent, nbr, name, access, ptr, descr) \ 613({ \ 614 struct sysctl_oid *__ret; \ 615 CTASSERT((sizeof(uint64_t) == sizeof(*(ptr)) || \ 616 sizeof(unsigned) == sizeof(*(ptr))) && \ 617 ((access) & CTLTYPE) == 0); \ 618 if (sizeof(uint64_t) == sizeof(*(ptr))) { \ 619 __ret = sysctl_add_oid(ctx, parent, nbr, name, \ 620 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \ 621 (ptr), 0, sysctl_handle_64, "QU", \ 622 __DESCR(descr)); \ 623 } else { \ 624 __ret = sysctl_add_oid(ctx, parent, nbr, name, \ 625 CTLTYPE_UINT | CTLFLAG_MPSAFE | (access), \ 626 (ptr), 0, sysctl_handle_int, "IU", \ 627 __DESCR(descr)); \ 628 } \ 629 __ret; \ 630}) 631 632/* Oid for a 64-bit unsigned counter(9). The pointer must be non NULL. */ 633#define SYSCTL_COUNTER_U64(parent, nbr, name, access, ptr, descr) \ 634 SYSCTL_OID(parent, nbr, name, \ 635 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \ 636 (ptr), 0, sysctl_handle_counter_u64, "QU", descr); \ 637 CTASSERT((((access) & CTLTYPE) == 0 || \ 638 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64) && \ 639 sizeof(counter_u64_t) == sizeof(*(ptr)) && \ 640 sizeof(uint64_t) == sizeof(**(ptr))) 641 642#define SYSCTL_ADD_COUNTER_U64(ctx, parent, nbr, name, access, ptr, descr) \ 643({ \ 644 counter_u64_t *__ptr = (ptr); \ 645 CTASSERT(((access) & CTLTYPE) == 0 || \ 646 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64); \ 647 sysctl_add_oid(ctx, parent, nbr, name, \ 648 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \ 649 __ptr, 0, sysctl_handle_counter_u64, "QU", __DESCR(descr)); \ 650}) 651 652/* Oid for an array of counter(9)s. The pointer and length must be non zero. */ 653#define SYSCTL_COUNTER_U64_ARRAY(parent, nbr, name, access, ptr, len, descr) \ 654 SYSCTL_OID(parent, nbr, name, \ 655 CTLTYPE_OPAQUE | CTLFLAG_MPSAFE | (access), \ 656 (ptr), (len), sysctl_handle_counter_u64_array, "S", descr); \ 657 CTASSERT((((access) & CTLTYPE) == 0 || \ 658 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE) && \ 659 sizeof(counter_u64_t) == sizeof(*(ptr)) && \ 660 sizeof(uint64_t) == sizeof(**(ptr))) 661 662#define SYSCTL_ADD_COUNTER_U64_ARRAY(ctx, parent, nbr, name, access, \ 663 ptr, len, descr) \ 664({ \ 665 counter_u64_t *__ptr = (ptr); \ 666 CTASSERT(((access) & CTLTYPE) == 0 || \ 667 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE); \ 668 sysctl_add_oid(ctx, parent, nbr, name, \ 669 CTLTYPE_OPAQUE | CTLFLAG_MPSAFE | (access), \ 670 __ptr, len, sysctl_handle_counter_u64_array, "S", \ 671 __DESCR(descr)); \ 672}) 673 674/* Oid for an opaque object. Specified by a pointer and a length. */ 675#define SYSCTL_OPAQUE(parent, nbr, name, access, ptr, len, fmt, descr) \ 676 SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|(access), \ 677 ptr, len, sysctl_handle_opaque, fmt, descr); \ 678 CTASSERT(((access) & CTLTYPE) == 0 || \ 679 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE) 680 681#define SYSCTL_ADD_OPAQUE(ctx, parent, nbr, name, access, ptr, len, fmt, descr) \ 682({ \ 683 CTASSERT(((access) & CTLTYPE) == 0 || \ 684 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE); \ 685 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_OPAQUE|(access), \ 686 ptr, len, sysctl_handle_opaque, fmt, __DESCR(descr)); \ 687}) 688 689/* Oid for a struct. Specified by a pointer and a type. */ 690#define SYSCTL_STRUCT(parent, nbr, name, access, ptr, type, descr) \ 691 SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|(access), \ 692 ptr, sizeof(struct type), sysctl_handle_opaque, \ 693 "S," #type, descr); \ 694 CTASSERT(((access) & CTLTYPE) == 0 || \ 695 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE) 696 697#define SYSCTL_ADD_STRUCT(ctx, parent, nbr, name, access, ptr, type, descr) \ 698({ \ 699 CTASSERT(((access) & CTLTYPE) == 0 || \ 700 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE); \ 701 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_OPAQUE|(access), \ 702 (ptr), sizeof(struct type), \ 703 sysctl_handle_opaque, "S," #type, __DESCR(descr)); \ 704}) 705 706/* Oid for a procedure. Specified by a pointer and an arg. */ 707#define SYSCTL_PROC(parent, nbr, name, access, ptr, arg, handler, fmt, descr) \ 708 SYSCTL_OID(parent, nbr, name, (access), \ 709 ptr, arg, handler, fmt, descr); \ 710 CTASSERT(((access) & CTLTYPE) != 0) 711 712#define SYSCTL_ADD_PROC(ctx, parent, nbr, name, access, ptr, arg, handler, fmt, descr) \ 713({ \ 714 CTASSERT(((access) & CTLTYPE) != 0); \ 715 sysctl_add_oid(ctx, parent, nbr, name, (access), \ 716 (ptr), (arg), (handler), (fmt), __DESCR(descr)); \ 717}) 718 719/* Oid to handle limits on uma(9) zone specified by pointer. */ 720#define SYSCTL_UMA_MAX(parent, nbr, name, access, ptr, descr) \ 721 SYSCTL_OID(parent, nbr, name, \ 722 CTLTYPE_INT | CTLFLAG_MPSAFE | (access), \ 723 (ptr), 0, sysctl_handle_uma_zone_max, "I", descr); \ 724 CTASSERT(((access) & CTLTYPE) == 0 || \ 725 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT) 726 727#define SYSCTL_ADD_UMA_MAX(ctx, parent, nbr, name, access, ptr, descr) \ 728({ \ 729 uma_zone_t __ptr = (ptr); \ 730 CTASSERT(((access) & CTLTYPE) == 0 || \ 731 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT); \ 732 sysctl_add_oid(ctx, parent, nbr, name, \ 733 CTLTYPE_INT | CTLFLAG_MPSAFE | (access), \ 734 __ptr, 0, sysctl_handle_uma_zone_max, "I", __DESCR(descr)); \ 735}) 736 737/* Oid to obtain current use of uma(9) zone specified by pointer. */ 738#define SYSCTL_UMA_CUR(parent, nbr, name, access, ptr, descr) \ 739 SYSCTL_OID(parent, nbr, name, \ 740 CTLTYPE_INT | CTLFLAG_MPSAFE | CTLFLAG_RD | (access), \ 741 (ptr), 0, sysctl_handle_uma_zone_cur, "I", descr); \ 742 CTASSERT(((access) & CTLTYPE) == 0 || \ 743 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT) 744 745#define SYSCTL_ADD_UMA_CUR(ctx, parent, nbr, name, access, ptr, descr) \ 746({ \ 747 uma_zone_t __ptr = (ptr); \ 748 CTASSERT(((access) & CTLTYPE) == 0 || \ 749 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT); \ 750 sysctl_add_oid(ctx, parent, nbr, name, \ 751 CTLTYPE_INT | CTLFLAG_MPSAFE | CTLFLAG_RD | (access), \ 752 __ptr, 0, sysctl_handle_uma_zone_cur, "I", __DESCR(descr)); \ 753}) 754 755/* 756 * A macro to generate a read-only sysctl to indicate the presence of optional 757 * kernel features. 758 */ 759#define FEATURE(name, desc) \ 760 SYSCTL_INT(_kern_features, OID_AUTO, name, CTLFLAG_RD | CTLFLAG_CAPRD, \ 761 SYSCTL_NULL_INT_PTR, 1, desc) 762 763#endif /* _KERNEL */ 764 765/* 766 * Top-level identifiers 767 */ 768#define CTL_UNSPEC 0 /* unused */ 769#define CTL_KERN 1 /* "high kernel": proc, limits */ 770#define CTL_VM 2 /* virtual memory */ 771#define CTL_VFS 3 /* filesystem, mount type is next */ 772#define CTL_NET 4 /* network, see socket.h */ 773#define CTL_DEBUG 5 /* debugging parameters */ 774#define CTL_HW 6 /* generic cpu/io */ 775#define CTL_MACHDEP 7 /* machine dependent */ 776#define CTL_USER 8 /* user-level */ 777#define CTL_P1003_1B 9 /* POSIX 1003.1B */ 778 779/* 780 * CTL_KERN identifiers 781 */ 782#define KERN_OSTYPE 1 /* string: system version */ 783#define KERN_OSRELEASE 2 /* string: system release */ 784#define KERN_OSREV 3 /* int: system revision */ 785#define KERN_VERSION 4 /* string: compile time info */ 786#define KERN_MAXVNODES 5 /* int: max vnodes */ 787#define KERN_MAXPROC 6 /* int: max processes */ 788#define KERN_MAXFILES 7 /* int: max open files */ 789#define KERN_ARGMAX 8 /* int: max arguments to exec */ 790#define KERN_SECURELVL 9 /* int: system security level */ 791#define KERN_HOSTNAME 10 /* string: hostname */ 792#define KERN_HOSTID 11 /* int: host identifier */ 793#define KERN_CLOCKRATE 12 /* struct: struct clockrate */ 794#define KERN_VNODE 13 /* struct: vnode structures */ 795#define KERN_PROC 14 /* struct: process entries */ 796#define KERN_FILE 15 /* struct: file entries */ 797#define KERN_PROF 16 /* node: kernel profiling info */ 798#define KERN_POSIX1 17 /* int: POSIX.1 version */ 799#define KERN_NGROUPS 18 /* int: # of supplemental group ids */ 800#define KERN_JOB_CONTROL 19 /* int: is job control available */ 801#define KERN_SAVED_IDS 20 /* int: saved set-user/group-ID */ 802#define KERN_BOOTTIME 21 /* struct: time kernel was booted */ 803#define KERN_NISDOMAINNAME 22 /* string: YP domain name */ 804#define KERN_UPDATEINTERVAL 23 /* int: update process sleep time */ 805#define KERN_OSRELDATE 24 /* int: kernel release date */ 806#define KERN_NTP_PLL 25 /* node: NTP PLL control */ 807#define KERN_BOOTFILE 26 /* string: name of booted kernel */ 808#define KERN_MAXFILESPERPROC 27 /* int: max open files per proc */ 809#define KERN_MAXPROCPERUID 28 /* int: max processes per uid */ 810#define KERN_DUMPDEV 29 /* struct cdev *: device to dump on */ 811#define KERN_IPC 30 /* node: anything related to IPC */ 812#define KERN_DUMMY 31 /* unused */ 813#define KERN_PS_STRINGS 32 /* int: address of PS_STRINGS */ 814#define KERN_USRSTACK 33 /* int: address of USRSTACK */ 815#define KERN_LOGSIGEXIT 34 /* int: do we log sigexit procs? */ 816#define KERN_IOV_MAX 35 /* int: value of UIO_MAXIOV */ 817#define KERN_HOSTUUID 36 /* string: host UUID identifier */ 818#define KERN_ARND 37 /* int: from arc4rand() */ 819/* 820 * KERN_PROC subtypes 821 */ 822#define KERN_PROC_ALL 0 /* everything */ 823#define KERN_PROC_PID 1 /* by process id */ 824#define KERN_PROC_PGRP 2 /* by process group id */ 825#define KERN_PROC_SESSION 3 /* by session of pid */ 826#define KERN_PROC_TTY 4 /* by controlling tty */ 827#define KERN_PROC_UID 5 /* by effective uid */ 828#define KERN_PROC_RUID 6 /* by real uid */ 829#define KERN_PROC_ARGS 7 /* get/set arguments/proctitle */ 830#define KERN_PROC_PROC 8 /* only return procs */ 831#define KERN_PROC_SV_NAME 9 /* get syscall vector name */ 832#define KERN_PROC_RGID 10 /* by real group id */ 833#define KERN_PROC_GID 11 /* by effective group id */ 834#define KERN_PROC_PATHNAME 12 /* path to executable */ 835#define KERN_PROC_OVMMAP 13 /* Old VM map entries for process */ 836#define KERN_PROC_OFILEDESC 14 /* Old file descriptors for process */ 837#define KERN_PROC_KSTACK 15 /* Kernel stacks for process */ 838#define KERN_PROC_INC_THREAD 0x10 /* 839 * modifier for pid, pgrp, tty, 840 * uid, ruid, gid, rgid and proc 841 * This effectively uses 16-31 842 */ 843#define KERN_PROC_VMMAP 32 /* VM map entries for process */ 844#define KERN_PROC_FILEDESC 33 /* File descriptors for process */ 845#define KERN_PROC_GROUPS 34 /* process groups */ 846#define KERN_PROC_ENV 35 /* get environment */ 847#define KERN_PROC_AUXV 36 /* get ELF auxiliary vector */ 848#define KERN_PROC_RLIMIT 37 /* process resource limits */ 849#define KERN_PROC_PS_STRINGS 38 /* get ps_strings location */ 850#define KERN_PROC_UMASK 39 /* process umask */ 851#define KERN_PROC_OSREL 40 /* osreldate for process binary */ 852#define KERN_PROC_SIGTRAMP 41 /* signal trampoline location */ 853#define KERN_PROC_CWD 42 /* process current working directory */ 854#define KERN_PROC_NFDS 43 /* number of open file descriptors */ 855 856/* 857 * KERN_IPC identifiers 858 */ 859#define KIPC_MAXSOCKBUF 1 /* int: max size of a socket buffer */ 860#define KIPC_SOCKBUF_WASTE 2 /* int: wastage factor in sockbuf */ 861#define KIPC_SOMAXCONN 3 /* int: max length of connection q */ 862#define KIPC_MAX_LINKHDR 4 /* int: max length of link header */ 863#define KIPC_MAX_PROTOHDR 5 /* int: max length of network header */ 864#define KIPC_MAX_HDR 6 /* int: max total length of headers */ 865#define KIPC_MAX_DATALEN 7 /* int: max length of data? */ 866 867/* 868 * CTL_HW identifiers 869 */ 870#define HW_MACHINE 1 /* string: machine class */ 871#define HW_MODEL 2 /* string: specific machine model */ 872#define HW_NCPU 3 /* int: number of cpus */ 873#define HW_BYTEORDER 4 /* int: machine byte order */ 874#define HW_PHYSMEM 5 /* int: total memory */ 875#define HW_USERMEM 6 /* int: non-kernel memory */ 876#define HW_PAGESIZE 7 /* int: software page size */ 877#define HW_DISKNAMES 8 /* strings: disk drive names */ 878#define HW_DISKSTATS 9 /* struct: diskstats[] */ 879#define HW_FLOATINGPT 10 /* int: has HW floating point? */ 880#define HW_MACHINE_ARCH 11 /* string: machine architecture */ 881#define HW_REALMEM 12 /* int: 'real' memory */ 882 883/* 884 * CTL_USER definitions 885 */ 886#define USER_CS_PATH 1 /* string: _CS_PATH */ 887#define USER_BC_BASE_MAX 2 /* int: BC_BASE_MAX */ 888#define USER_BC_DIM_MAX 3 /* int: BC_DIM_MAX */ 889#define USER_BC_SCALE_MAX 4 /* int: BC_SCALE_MAX */ 890#define USER_BC_STRING_MAX 5 /* int: BC_STRING_MAX */ 891#define USER_COLL_WEIGHTS_MAX 6 /* int: COLL_WEIGHTS_MAX */ 892#define USER_EXPR_NEST_MAX 7 /* int: EXPR_NEST_MAX */ 893#define USER_LINE_MAX 8 /* int: LINE_MAX */ 894#define USER_RE_DUP_MAX 9 /* int: RE_DUP_MAX */ 895#define USER_POSIX2_VERSION 10 /* int: POSIX2_VERSION */ 896#define USER_POSIX2_C_BIND 11 /* int: POSIX2_C_BIND */ 897#define USER_POSIX2_C_DEV 12 /* int: POSIX2_C_DEV */ 898#define USER_POSIX2_CHAR_TERM 13 /* int: POSIX2_CHAR_TERM */ 899#define USER_POSIX2_FORT_DEV 14 /* int: POSIX2_FORT_DEV */ 900#define USER_POSIX2_FORT_RUN 15 /* int: POSIX2_FORT_RUN */ 901#define USER_POSIX2_LOCALEDEF 16 /* int: POSIX2_LOCALEDEF */ 902#define USER_POSIX2_SW_DEV 17 /* int: POSIX2_SW_DEV */ 903#define USER_POSIX2_UPE 18 /* int: POSIX2_UPE */ 904#define USER_STREAM_MAX 19 /* int: POSIX2_STREAM_MAX */ 905#define USER_TZNAME_MAX 20 /* int: POSIX2_TZNAME_MAX */ 906 907#define CTL_P1003_1B_ASYNCHRONOUS_IO 1 /* boolean */ 908#define CTL_P1003_1B_MAPPED_FILES 2 /* boolean */ 909#define CTL_P1003_1B_MEMLOCK 3 /* boolean */ 910#define CTL_P1003_1B_MEMLOCK_RANGE 4 /* boolean */ 911#define CTL_P1003_1B_MEMORY_PROTECTION 5 /* boolean */ 912#define CTL_P1003_1B_MESSAGE_PASSING 6 /* boolean */ 913#define CTL_P1003_1B_PRIORITIZED_IO 7 /* boolean */ 914#define CTL_P1003_1B_PRIORITY_SCHEDULING 8 /* boolean */ 915#define CTL_P1003_1B_REALTIME_SIGNALS 9 /* boolean */ 916#define CTL_P1003_1B_SEMAPHORES 10 /* boolean */ 917#define CTL_P1003_1B_FSYNC 11 /* boolean */ 918#define CTL_P1003_1B_SHARED_MEMORY_OBJECTS 12 /* boolean */ 919#define CTL_P1003_1B_SYNCHRONIZED_IO 13 /* boolean */ 920#define CTL_P1003_1B_TIMERS 14 /* boolean */ 921#define CTL_P1003_1B_AIO_LISTIO_MAX 15 /* int */ 922#define CTL_P1003_1B_AIO_MAX 16 /* int */ 923#define CTL_P1003_1B_AIO_PRIO_DELTA_MAX 17 /* int */ 924#define CTL_P1003_1B_DELAYTIMER_MAX 18 /* int */ 925#define CTL_P1003_1B_MQ_OPEN_MAX 19 /* int */ 926#define CTL_P1003_1B_PAGESIZE 20 /* int */ 927#define CTL_P1003_1B_RTSIG_MAX 21 /* int */ 928#define CTL_P1003_1B_SEM_NSEMS_MAX 22 /* int */ 929#define CTL_P1003_1B_SEM_VALUE_MAX 23 /* int */ 930#define CTL_P1003_1B_SIGQUEUE_MAX 24 /* int */ 931#define CTL_P1003_1B_TIMER_MAX 25 /* int */ 932 933#define CTL_P1003_1B_MAXID 26 934 935#ifdef _KERNEL 936 937/* 938 * Declare some common oids. 939 */ 940extern struct sysctl_oid_list sysctl__children; 941SYSCTL_DECL(_kern); 942SYSCTL_DECL(_kern_features); 943SYSCTL_DECL(_kern_ipc); 944SYSCTL_DECL(_kern_proc); 945SYSCTL_DECL(_kern_sched); 946SYSCTL_DECL(_kern_sched_stats); 947SYSCTL_DECL(_sysctl); 948SYSCTL_DECL(_vm); 949SYSCTL_DECL(_vm_stats); 950SYSCTL_DECL(_vm_stats_misc); 951SYSCTL_DECL(_vfs); 952SYSCTL_DECL(_net); 953SYSCTL_DECL(_debug); 954SYSCTL_DECL(_debug_sizeof); 955SYSCTL_DECL(_dev); 956SYSCTL_DECL(_hw); 957SYSCTL_DECL(_hw_bus); 958SYSCTL_DECL(_hw_bus_devices); 959SYSCTL_DECL(_hw_bus_info); 960SYSCTL_DECL(_machdep); 961SYSCTL_DECL(_user); 962SYSCTL_DECL(_compat); 963SYSCTL_DECL(_regression); 964SYSCTL_DECL(_security); 965SYSCTL_DECL(_security_bsd); 966 967extern char machine[]; 968extern char osrelease[]; 969extern char ostype[]; 970extern char kern_ident[]; 971 972/* Dynamic oid handling */ 973struct sysctl_oid *sysctl_add_oid(struct sysctl_ctx_list *clist, 974 struct sysctl_oid_list *parent, int nbr, const char *name, int kind, 975 void *arg1, intmax_t arg2, int (*handler)(SYSCTL_HANDLER_ARGS), 976 const char *fmt, const char *descr); 977int sysctl_remove_name(struct sysctl_oid *parent, const char *name, int del, 978 int recurse); 979void sysctl_rename_oid(struct sysctl_oid *oidp, const char *name); 980int sysctl_move_oid(struct sysctl_oid *oidp, 981 struct sysctl_oid_list *parent); 982int sysctl_remove_oid(struct sysctl_oid *oidp, int del, int recurse); 983int sysctl_ctx_init(struct sysctl_ctx_list *clist); 984int sysctl_ctx_free(struct sysctl_ctx_list *clist); 985struct sysctl_ctx_entry *sysctl_ctx_entry_add(struct sysctl_ctx_list *clist, 986 struct sysctl_oid *oidp); 987struct sysctl_ctx_entry *sysctl_ctx_entry_find(struct sysctl_ctx_list *clist, 988 struct sysctl_oid *oidp); 989int sysctl_ctx_entry_del(struct sysctl_ctx_list *clist, 990 struct sysctl_oid *oidp); 991 992int kernel_sysctl(struct thread *td, int *name, u_int namelen, void *old, 993 size_t *oldlenp, void *new, size_t newlen, size_t *retval, 994 int flags); 995int kernel_sysctlbyname(struct thread *td, char *name, void *old, 996 size_t *oldlenp, void *new, size_t newlen, size_t *retval, 997 int flags); 998int userland_sysctl(struct thread *td, int *name, u_int namelen, void *old, 999 size_t *oldlenp, int inkernel, void *new, size_t newlen, 1000 size_t *retval, int flags); 1001int sysctl_find_oid(int *name, u_int namelen, struct sysctl_oid **noid, 1002 int *nindx, struct sysctl_req *req); 1003void sysctl_wlock(void); 1004void sysctl_wunlock(void); 1005int sysctl_wire_old_buffer(struct sysctl_req *req, size_t len); 1006 1007struct sbuf; 1008struct sbuf *sbuf_new_for_sysctl(struct sbuf *, char *, int, 1009 struct sysctl_req *); 1010#else /* !_KERNEL */ 1011#include <sys/cdefs.h> 1012 1013__BEGIN_DECLS 1014int sysctl(const int *, u_int, void *, size_t *, const void *, size_t); 1015int sysctlbyname(const char *, void *, size_t *, const void *, size_t); 1016int sysctlnametomib(const char *, int *, size_t *); 1017__END_DECLS 1018#endif /* _KERNEL */ 1019 1020#endif /* !_SYS_SYSCTL_H_ */ 1021