sysctl.h revision 302408
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 300718 2016-05-26 08:41:55Z hselasky $ 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_bool(SYSCTL_HANDLER_ARGS); 198int sysctl_handle_8(SYSCTL_HANDLER_ARGS); 199int sysctl_handle_16(SYSCTL_HANDLER_ARGS); 200int sysctl_handle_32(SYSCTL_HANDLER_ARGS); 201int sysctl_handle_64(SYSCTL_HANDLER_ARGS); 202int sysctl_handle_int(SYSCTL_HANDLER_ARGS); 203int sysctl_msec_to_ticks(SYSCTL_HANDLER_ARGS); 204int sysctl_handle_long(SYSCTL_HANDLER_ARGS); 205int sysctl_handle_string(SYSCTL_HANDLER_ARGS); 206int sysctl_handle_opaque(SYSCTL_HANDLER_ARGS); 207int sysctl_handle_counter_u64(SYSCTL_HANDLER_ARGS); 208int sysctl_handle_counter_u64_array(SYSCTL_HANDLER_ARGS); 209 210int sysctl_handle_uma_zone_max(SYSCTL_HANDLER_ARGS); 211int sysctl_handle_uma_zone_cur(SYSCTL_HANDLER_ARGS); 212 213int sysctl_dpcpu_int(SYSCTL_HANDLER_ARGS); 214int sysctl_dpcpu_long(SYSCTL_HANDLER_ARGS); 215int sysctl_dpcpu_quad(SYSCTL_HANDLER_ARGS); 216 217/* 218 * These functions are used to add/remove an oid from the mib. 219 */ 220void sysctl_register_oid(struct sysctl_oid *oidp); 221void sysctl_unregister_oid(struct sysctl_oid *oidp); 222 223/* Declare a static oid to allow child oids to be added to it. */ 224#define SYSCTL_DECL(name) \ 225 extern struct sysctl_oid sysctl__##name 226 227/* Hide these in macros. */ 228#define SYSCTL_CHILDREN(oid_ptr) (&(oid_ptr)->oid_children) 229#define SYSCTL_PARENT(oid_ptr) \ 230 (((oid_ptr)->oid_parent != &sysctl__children) ? \ 231 __containerof((oid_ptr)->oid_parent, struct sysctl_oid, \ 232 oid_children) : (struct sysctl_oid *)NULL) 233#define SYSCTL_STATIC_CHILDREN(oid_name) (&sysctl__##oid_name.oid_children) 234 235/* === Structs and macros related to context handling. === */ 236 237/* All dynamically created sysctls can be tracked in a context list. */ 238struct sysctl_ctx_entry { 239 struct sysctl_oid *entry; 240 TAILQ_ENTRY(sysctl_ctx_entry) link; 241}; 242 243TAILQ_HEAD(sysctl_ctx_list, sysctl_ctx_entry); 244 245#define SYSCTL_NODE_CHILDREN(parent, name) \ 246 sysctl__##parent##_##name.oid_children 247 248#ifndef NO_SYSCTL_DESCR 249#define __DESCR(d) d 250#else 251#define __DESCR(d) "" 252#endif 253 254/* This macro is only for internal use */ 255#define SYSCTL_OID_RAW(id, parent_child_head, nbr, name, kind, a1, a2, handler, fmt, descr) \ 256 struct sysctl_oid id = { \ 257 .oid_parent = (parent_child_head), \ 258 .oid_children = SLIST_HEAD_INITIALIZER(&id.oid_children), \ 259 .oid_number = (nbr), \ 260 .oid_kind = (kind), \ 261 .oid_arg1 = (a1), \ 262 .oid_arg2 = (a2), \ 263 .oid_name = (name), \ 264 .oid_handler = (handler), \ 265 .oid_fmt = (fmt), \ 266 .oid_descr = __DESCR(descr) \ 267 }; \ 268 DATA_SET(sysctl_set, id) 269 270/* This constructs a static "raw" MIB oid. */ 271#define SYSCTL_OID(parent, nbr, name, kind, a1, a2, handler, fmt, descr) \ 272 static SYSCTL_OID_RAW(sysctl__##parent##_##name, \ 273 SYSCTL_CHILDREN(&sysctl__##parent), \ 274 nbr, #name, kind, a1, a2, handler, fmt, descr) 275 276/* This constructs a global "raw" MIB oid. */ 277#define SYSCTL_OID_GLOBAL(parent, nbr, name, kind, a1, a2, handler, fmt, descr) \ 278 SYSCTL_OID_RAW(sysctl__##parent##_##name, \ 279 SYSCTL_CHILDREN(&sysctl__##parent), \ 280 nbr, #name, kind, a1, a2, handler, fmt, descr) 281 282#define SYSCTL_ADD_OID(ctx, parent, nbr, name, kind, a1, a2, handler, fmt, descr) \ 283 sysctl_add_oid(ctx, parent, nbr, name, kind, a1, a2, handler, fmt, __DESCR(descr)) 284 285/* This constructs a root node from which other nodes can hang. */ 286#define SYSCTL_ROOT_NODE(nbr, name, access, handler, descr) \ 287 SYSCTL_OID_RAW(sysctl___##name, &sysctl__children, \ 288 nbr, #name, CTLTYPE_NODE|(access), NULL, 0, \ 289 handler, "N", descr); \ 290 CTASSERT(((access) & CTLTYPE) == 0 || \ 291 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_NODE) 292 293/* This constructs a node from which other oids can hang. */ 294#define SYSCTL_NODE(parent, nbr, name, access, handler, descr) \ 295 SYSCTL_OID_GLOBAL(parent, nbr, name, CTLTYPE_NODE|(access), \ 296 NULL, 0, handler, "N", descr); \ 297 CTASSERT(((access) & CTLTYPE) == 0 || \ 298 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_NODE) 299 300#define SYSCTL_ADD_NODE(ctx, parent, nbr, name, access, handler, descr) \ 301({ \ 302 CTASSERT(((access) & CTLTYPE) == 0 || \ 303 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_NODE); \ 304 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_NODE|(access), \ 305 NULL, 0, handler, "N", __DESCR(descr)); \ 306}) 307 308#define SYSCTL_ADD_ROOT_NODE(ctx, nbr, name, access, handler, descr) \ 309({ \ 310 CTASSERT(((access) & CTLTYPE) == 0 || \ 311 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_NODE); \ 312 sysctl_add_oid(ctx, &sysctl__children, nbr, name, \ 313 CTLTYPE_NODE|(access), \ 314 NULL, 0, handler, "N", __DESCR(descr)); \ 315}) 316 317/* Oid for a string. len can be 0 to indicate '\0' termination. */ 318#define SYSCTL_STRING(parent, nbr, name, access, arg, len, descr) \ 319 SYSCTL_OID(parent, nbr, name, CTLTYPE_STRING|(access), \ 320 arg, len, sysctl_handle_string, "A", descr); \ 321 CTASSERT(((access) & CTLTYPE) == 0 || \ 322 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_STRING) 323 324#define SYSCTL_ADD_STRING(ctx, parent, nbr, name, access, arg, len, descr) \ 325({ \ 326 char *__arg = (arg); \ 327 CTASSERT(((access) & CTLTYPE) == 0 || \ 328 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_STRING); \ 329 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_STRING|(access), \ 330 __arg, len, sysctl_handle_string, "A", __DESCR(descr)); \ 331}) 332 333/* Oid for a bool. If ptr is NULL, val is returned. */ 334#define SYSCTL_NULL_BOOL_PTR ((bool *)NULL) 335#define SYSCTL_BOOL(parent, nbr, name, access, ptr, val, descr) \ 336 SYSCTL_OID(parent, nbr, name, \ 337 CTLTYPE_U8 | CTLFLAG_MPSAFE | (access), \ 338 ptr, val, sysctl_handle_bool, "CU", descr); \ 339 CTASSERT(((access) & CTLTYPE) == 0 && \ 340 sizeof(bool) == sizeof(*(ptr))) 341 342#define SYSCTL_ADD_BOOL(ctx, parent, nbr, name, access, ptr, val, descr) \ 343({ \ 344 bool *__ptr = (ptr); \ 345 CTASSERT(((access) & CTLTYPE) == 0); \ 346 sysctl_add_oid(ctx, parent, nbr, name, \ 347 CTLTYPE_U8 | CTLFLAG_MPSAFE | (access), \ 348 __ptr, val, sysctl_handle_bool, "CU", __DESCR(descr)); \ 349}) 350 351/* Oid for a signed 8-bit int. If ptr is NULL, val is returned. */ 352#define SYSCTL_NULL_S8_PTR ((int8_t *)NULL) 353#define SYSCTL_S8(parent, nbr, name, access, ptr, val, descr) \ 354 SYSCTL_OID(parent, nbr, name, \ 355 CTLTYPE_S8 | CTLFLAG_MPSAFE | (access), \ 356 ptr, val, sysctl_handle_8, "C", descr); \ 357 CTASSERT((((access) & CTLTYPE) == 0 || \ 358 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S8) && \ 359 sizeof(int8_t) == sizeof(*(ptr))) 360 361#define SYSCTL_ADD_S8(ctx, parent, nbr, name, access, ptr, val, descr) \ 362({ \ 363 int8_t *__ptr = (ptr); \ 364 CTASSERT(((access) & CTLTYPE) == 0 || \ 365 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S8); \ 366 sysctl_add_oid(ctx, parent, nbr, name, \ 367 CTLTYPE_S8 | CTLFLAG_MPSAFE | (access), \ 368 __ptr, val, sysctl_handle_8, "C", __DESCR(descr)); \ 369}) 370 371/* Oid for an unsigned 8-bit int. If ptr is NULL, val is returned. */ 372#define SYSCTL_NULL_U8_PTR ((uint8_t *)NULL) 373#define SYSCTL_U8(parent, nbr, name, access, ptr, val, descr) \ 374 SYSCTL_OID(parent, nbr, name, \ 375 CTLTYPE_U8 | CTLFLAG_MPSAFE | (access), \ 376 ptr, val, sysctl_handle_8, "CU", descr); \ 377 CTASSERT((((access) & CTLTYPE) == 0 || \ 378 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U8) && \ 379 sizeof(uint8_t) == sizeof(*(ptr))) 380 381#define SYSCTL_ADD_U8(ctx, parent, nbr, name, access, ptr, val, descr) \ 382({ \ 383 uint8_t *__ptr = (ptr); \ 384 CTASSERT(((access) & CTLTYPE) == 0 || \ 385 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U8); \ 386 sysctl_add_oid(ctx, parent, nbr, name, \ 387 CTLTYPE_U8 | CTLFLAG_MPSAFE | (access), \ 388 __ptr, val, sysctl_handle_8, "CU", __DESCR(descr)); \ 389}) 390 391/* Oid for a signed 16-bit int. If ptr is NULL, val is returned. */ 392#define SYSCTL_NULL_S16_PTR ((int16_t *)NULL) 393#define SYSCTL_S16(parent, nbr, name, access, ptr, val, descr) \ 394 SYSCTL_OID(parent, nbr, name, \ 395 CTLTYPE_S16 | CTLFLAG_MPSAFE | (access), \ 396 ptr, val, sysctl_handle_16, "S", descr); \ 397 CTASSERT((((access) & CTLTYPE) == 0 || \ 398 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S16) && \ 399 sizeof(int16_t) == sizeof(*(ptr))) 400 401#define SYSCTL_ADD_S16(ctx, parent, nbr, name, access, ptr, val, descr) \ 402({ \ 403 int16_t *__ptr = (ptr); \ 404 CTASSERT(((access) & CTLTYPE) == 0 || \ 405 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S16); \ 406 sysctl_add_oid(ctx, parent, nbr, name, \ 407 CTLTYPE_S16 | CTLFLAG_MPSAFE | (access), \ 408 __ptr, val, sysctl_handle_16, "S", __DESCR(descr)); \ 409}) 410 411/* Oid for an unsigned 16-bit int. If ptr is NULL, val is returned. */ 412#define SYSCTL_NULL_U16_PTR ((uint16_t *)NULL) 413#define SYSCTL_U16(parent, nbr, name, access, ptr, val, descr) \ 414 SYSCTL_OID(parent, nbr, name, \ 415 CTLTYPE_U16 | CTLFLAG_MPSAFE | (access), \ 416 ptr, val, sysctl_handle_16, "SU", descr); \ 417 CTASSERT((((access) & CTLTYPE) == 0 || \ 418 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U16) && \ 419 sizeof(uint16_t) == sizeof(*(ptr))) 420 421#define SYSCTL_ADD_U16(ctx, parent, nbr, name, access, ptr, val, descr) \ 422({ \ 423 uint16_t *__ptr = (ptr); \ 424 CTASSERT(((access) & CTLTYPE) == 0 || \ 425 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U16); \ 426 sysctl_add_oid(ctx, parent, nbr, name, \ 427 CTLTYPE_U16 | CTLFLAG_MPSAFE | (access), \ 428 __ptr, val, sysctl_handle_16, "SU", __DESCR(descr)); \ 429}) 430 431/* Oid for a signed 32-bit int. If ptr is NULL, val is returned. */ 432#define SYSCTL_NULL_S32_PTR ((int32_t *)NULL) 433#define SYSCTL_S32(parent, nbr, name, access, ptr, val, descr) \ 434 SYSCTL_OID(parent, nbr, name, \ 435 CTLTYPE_S32 | CTLFLAG_MPSAFE | (access), \ 436 ptr, val, sysctl_handle_32, "I", descr); \ 437 CTASSERT((((access) & CTLTYPE) == 0 || \ 438 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S32) && \ 439 sizeof(int32_t) == sizeof(*(ptr))) 440 441#define SYSCTL_ADD_S32(ctx, parent, nbr, name, access, ptr, val, descr) \ 442({ \ 443 int32_t *__ptr = (ptr); \ 444 CTASSERT(((access) & CTLTYPE) == 0 || \ 445 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S32); \ 446 sysctl_add_oid(ctx, parent, nbr, name, \ 447 CTLTYPE_S32 | CTLFLAG_MPSAFE | (access), \ 448 __ptr, val, sysctl_handle_32, "I", __DESCR(descr)); \ 449}) 450 451/* Oid for an unsigned 32-bit int. If ptr is NULL, val is returned. */ 452#define SYSCTL_NULL_U32_PTR ((uint32_t *)NULL) 453#define SYSCTL_U32(parent, nbr, name, access, ptr, val, descr) \ 454 SYSCTL_OID(parent, nbr, name, \ 455 CTLTYPE_U32 | CTLFLAG_MPSAFE | (access), \ 456 ptr, val, sysctl_handle_32, "IU", descr); \ 457 CTASSERT((((access) & CTLTYPE) == 0 || \ 458 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U32) && \ 459 sizeof(uint32_t) == sizeof(*(ptr))) 460 461#define SYSCTL_ADD_U32(ctx, parent, nbr, name, access, ptr, val, descr) \ 462({ \ 463 uint32_t *__ptr = (ptr); \ 464 CTASSERT(((access) & CTLTYPE) == 0 || \ 465 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U32); \ 466 sysctl_add_oid(ctx, parent, nbr, name, \ 467 CTLTYPE_U32 | CTLFLAG_MPSAFE | (access), \ 468 __ptr, val, sysctl_handle_32, "IU", __DESCR(descr)); \ 469}) 470 471/* Oid for a signed 64-bit int. If ptr is NULL, val is returned. */ 472#define SYSCTL_NULL_S64_PTR ((int64_t *)NULL) 473#define SYSCTL_S64(parent, nbr, name, access, ptr, val, descr) \ 474 SYSCTL_OID(parent, nbr, name, \ 475 CTLTYPE_S64 | CTLFLAG_MPSAFE | (access), \ 476 ptr, val, sysctl_handle_64, "Q", descr); \ 477 CTASSERT((((access) & CTLTYPE) == 0 || \ 478 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64) && \ 479 sizeof(int64_t) == sizeof(*(ptr))) 480 481#define SYSCTL_ADD_S64(ctx, parent, nbr, name, access, ptr, val, descr) \ 482({ \ 483 int64_t *__ptr = (ptr); \ 484 CTASSERT(((access) & CTLTYPE) == 0 || \ 485 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64); \ 486 sysctl_add_oid(ctx, parent, nbr, name, \ 487 CTLTYPE_S64 | CTLFLAG_MPSAFE | (access), \ 488 __ptr, val, sysctl_handle_64, "Q", __DESCR(descr)); \ 489}) 490 491/* Oid for an unsigned 64-bit int. If ptr is NULL, val is returned. */ 492#define SYSCTL_NULL_U64_PTR ((uint64_t *)NULL) 493#define SYSCTL_U64(parent, nbr, name, access, ptr, val, descr) \ 494 SYSCTL_OID(parent, nbr, name, \ 495 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \ 496 ptr, val, sysctl_handle_64, "QU", descr); \ 497 CTASSERT((((access) & CTLTYPE) == 0 || \ 498 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64) && \ 499 sizeof(uint64_t) == sizeof(*(ptr))) 500 501#define SYSCTL_ADD_U64(ctx, parent, nbr, name, access, ptr, val, descr) \ 502({ \ 503 uint64_t *__ptr = (ptr); \ 504 CTASSERT(((access) & CTLTYPE) == 0 || \ 505 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64); \ 506 sysctl_add_oid(ctx, parent, nbr, name, \ 507 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \ 508 __ptr, val, sysctl_handle_64, "QU", __DESCR(descr)); \ 509}) 510 511/* Oid for an int. If ptr is SYSCTL_NULL_INT_PTR, val is returned. */ 512#define SYSCTL_NULL_INT_PTR ((int *)NULL) 513#define SYSCTL_INT(parent, nbr, name, access, ptr, val, descr) \ 514 SYSCTL_OID(parent, nbr, name, \ 515 CTLTYPE_INT | CTLFLAG_MPSAFE | (access), \ 516 ptr, val, sysctl_handle_int, "I", descr); \ 517 CTASSERT((((access) & CTLTYPE) == 0 || \ 518 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT) && \ 519 sizeof(int) == sizeof(*(ptr))) 520 521#define SYSCTL_ADD_INT(ctx, parent, nbr, name, access, ptr, val, descr) \ 522({ \ 523 int *__ptr = (ptr); \ 524 CTASSERT(((access) & CTLTYPE) == 0 || \ 525 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT); \ 526 sysctl_add_oid(ctx, parent, nbr, name, \ 527 CTLTYPE_INT | CTLFLAG_MPSAFE | (access), \ 528 __ptr, val, sysctl_handle_int, "I", __DESCR(descr)); \ 529}) 530 531/* Oid for an unsigned int. If ptr is NULL, val is returned. */ 532#define SYSCTL_NULL_UINT_PTR ((unsigned *)NULL) 533#define SYSCTL_UINT(parent, nbr, name, access, ptr, val, descr) \ 534 SYSCTL_OID(parent, nbr, name, \ 535 CTLTYPE_UINT | CTLFLAG_MPSAFE | (access), \ 536 ptr, val, sysctl_handle_int, "IU", descr); \ 537 CTASSERT((((access) & CTLTYPE) == 0 || \ 538 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_UINT) && \ 539 sizeof(unsigned) == sizeof(*(ptr))) 540 541#define SYSCTL_ADD_UINT(ctx, parent, nbr, name, access, ptr, val, descr) \ 542({ \ 543 unsigned *__ptr = (ptr); \ 544 CTASSERT(((access) & CTLTYPE) == 0 || \ 545 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_UINT); \ 546 sysctl_add_oid(ctx, parent, nbr, name, \ 547 CTLTYPE_UINT | CTLFLAG_MPSAFE | (access), \ 548 __ptr, val, sysctl_handle_int, "IU", __DESCR(descr)); \ 549}) 550 551/* Oid for a long. The pointer must be non NULL. */ 552#define SYSCTL_NULL_LONG_PTR ((long *)NULL) 553#define SYSCTL_LONG(parent, nbr, name, access, ptr, val, descr) \ 554 SYSCTL_OID(parent, nbr, name, \ 555 CTLTYPE_LONG | CTLFLAG_MPSAFE | (access), \ 556 ptr, val, sysctl_handle_long, "L", descr); \ 557 CTASSERT((((access) & CTLTYPE) == 0 || \ 558 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_LONG) && \ 559 sizeof(long) == sizeof(*(ptr))) 560 561#define SYSCTL_ADD_LONG(ctx, parent, nbr, name, access, ptr, descr) \ 562({ \ 563 long *__ptr = (ptr); \ 564 CTASSERT(((access) & CTLTYPE) == 0 || \ 565 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_LONG); \ 566 sysctl_add_oid(ctx, parent, nbr, name, \ 567 CTLTYPE_LONG | CTLFLAG_MPSAFE | (access), \ 568 __ptr, 0, sysctl_handle_long, "L", __DESCR(descr)); \ 569}) 570 571/* Oid for an unsigned long. The pointer must be non NULL. */ 572#define SYSCTL_NULL_ULONG_PTR ((unsigned long *)NULL) 573#define SYSCTL_ULONG(parent, nbr, name, access, ptr, val, descr) \ 574 SYSCTL_OID(parent, nbr, name, \ 575 CTLTYPE_ULONG | CTLFLAG_MPSAFE | (access), \ 576 ptr, val, sysctl_handle_long, "LU", descr); \ 577 CTASSERT((((access) & CTLTYPE) == 0 || \ 578 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_ULONG) && \ 579 sizeof(unsigned long) == sizeof(*(ptr))) 580 581#define SYSCTL_ADD_ULONG(ctx, parent, nbr, name, access, ptr, descr) \ 582({ \ 583 unsigned long *__ptr = (ptr); \ 584 CTASSERT(((access) & CTLTYPE) == 0 || \ 585 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_ULONG); \ 586 sysctl_add_oid(ctx, parent, nbr, name, \ 587 CTLTYPE_ULONG | CTLFLAG_MPSAFE | (access), \ 588 __ptr, 0, sysctl_handle_long, "LU", __DESCR(descr)); \ 589}) 590 591/* Oid for a quad. The pointer must be non NULL. */ 592#define SYSCTL_NULL_QUAD_PTR ((int64_t *)NULL) 593#define SYSCTL_QUAD(parent, nbr, name, access, ptr, val, descr) \ 594 SYSCTL_OID(parent, nbr, name, \ 595 CTLTYPE_S64 | CTLFLAG_MPSAFE | (access), \ 596 ptr, val, sysctl_handle_64, "Q", descr); \ 597 CTASSERT((((access) & CTLTYPE) == 0 || \ 598 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64) && \ 599 sizeof(int64_t) == sizeof(*(ptr))) 600 601#define SYSCTL_ADD_QUAD(ctx, parent, nbr, name, access, ptr, descr) \ 602({ \ 603 int64_t *__ptr = (ptr); \ 604 CTASSERT(((access) & CTLTYPE) == 0 || \ 605 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64); \ 606 sysctl_add_oid(ctx, parent, nbr, name, \ 607 CTLTYPE_S64 | CTLFLAG_MPSAFE | (access), \ 608 __ptr, 0, sysctl_handle_64, "Q", __DESCR(descr)); \ 609}) 610 611#define SYSCTL_NULL_UQUAD_PTR ((uint64_t *)NULL) 612#define SYSCTL_UQUAD(parent, nbr, name, access, ptr, val, descr) \ 613 SYSCTL_OID(parent, nbr, name, \ 614 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \ 615 ptr, val, sysctl_handle_64, "QU", descr); \ 616 CTASSERT((((access) & CTLTYPE) == 0 || \ 617 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64) && \ 618 sizeof(uint64_t) == sizeof(*(ptr))) 619 620#define SYSCTL_ADD_UQUAD(ctx, parent, nbr, name, access, ptr, descr) \ 621({ \ 622 uint64_t *__ptr = (ptr); \ 623 CTASSERT(((access) & CTLTYPE) == 0 || \ 624 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64); \ 625 sysctl_add_oid(ctx, parent, nbr, name, \ 626 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \ 627 __ptr, 0, sysctl_handle_64, "QU", __DESCR(descr)); \ 628}) 629 630/* Oid for a CPU dependent variable */ 631#define SYSCTL_ADD_UAUTO(ctx, parent, nbr, name, access, ptr, descr) \ 632({ \ 633 struct sysctl_oid *__ret; \ 634 CTASSERT((sizeof(uint64_t) == sizeof(*(ptr)) || \ 635 sizeof(unsigned) == sizeof(*(ptr))) && \ 636 ((access) & CTLTYPE) == 0); \ 637 if (sizeof(uint64_t) == sizeof(*(ptr))) { \ 638 __ret = sysctl_add_oid(ctx, parent, nbr, name, \ 639 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \ 640 (ptr), 0, sysctl_handle_64, "QU", \ 641 __DESCR(descr)); \ 642 } else { \ 643 __ret = sysctl_add_oid(ctx, parent, nbr, name, \ 644 CTLTYPE_UINT | CTLFLAG_MPSAFE | (access), \ 645 (ptr), 0, sysctl_handle_int, "IU", \ 646 __DESCR(descr)); \ 647 } \ 648 __ret; \ 649}) 650 651/* Oid for a 64-bit unsigned counter(9). The pointer must be non NULL. */ 652#define SYSCTL_COUNTER_U64(parent, nbr, name, access, ptr, descr) \ 653 SYSCTL_OID(parent, nbr, name, \ 654 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \ 655 (ptr), 0, sysctl_handle_counter_u64, "QU", descr); \ 656 CTASSERT((((access) & CTLTYPE) == 0 || \ 657 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64) && \ 658 sizeof(counter_u64_t) == sizeof(*(ptr)) && \ 659 sizeof(uint64_t) == sizeof(**(ptr))) 660 661#define SYSCTL_ADD_COUNTER_U64(ctx, parent, nbr, name, access, ptr, descr) \ 662({ \ 663 counter_u64_t *__ptr = (ptr); \ 664 CTASSERT(((access) & CTLTYPE) == 0 || \ 665 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64); \ 666 sysctl_add_oid(ctx, parent, nbr, name, \ 667 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \ 668 __ptr, 0, sysctl_handle_counter_u64, "QU", __DESCR(descr)); \ 669}) 670 671/* Oid for an array of counter(9)s. The pointer and length must be non zero. */ 672#define SYSCTL_COUNTER_U64_ARRAY(parent, nbr, name, access, ptr, len, descr) \ 673 SYSCTL_OID(parent, nbr, name, \ 674 CTLTYPE_OPAQUE | CTLFLAG_MPSAFE | (access), \ 675 (ptr), (len), sysctl_handle_counter_u64_array, "S", descr); \ 676 CTASSERT((((access) & CTLTYPE) == 0 || \ 677 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE) && \ 678 sizeof(counter_u64_t) == sizeof(*(ptr)) && \ 679 sizeof(uint64_t) == sizeof(**(ptr))) 680 681#define SYSCTL_ADD_COUNTER_U64_ARRAY(ctx, parent, nbr, name, access, \ 682 ptr, len, descr) \ 683({ \ 684 counter_u64_t *__ptr = (ptr); \ 685 CTASSERT(((access) & CTLTYPE) == 0 || \ 686 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE); \ 687 sysctl_add_oid(ctx, parent, nbr, name, \ 688 CTLTYPE_OPAQUE | CTLFLAG_MPSAFE | (access), \ 689 __ptr, len, sysctl_handle_counter_u64_array, "S", \ 690 __DESCR(descr)); \ 691}) 692 693/* Oid for an opaque object. Specified by a pointer and a length. */ 694#define SYSCTL_OPAQUE(parent, nbr, name, access, ptr, len, fmt, descr) \ 695 SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|(access), \ 696 ptr, len, sysctl_handle_opaque, fmt, descr); \ 697 CTASSERT(((access) & CTLTYPE) == 0 || \ 698 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE) 699 700#define SYSCTL_ADD_OPAQUE(ctx, parent, nbr, name, access, ptr, len, fmt, descr) \ 701({ \ 702 CTASSERT(((access) & CTLTYPE) == 0 || \ 703 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE); \ 704 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_OPAQUE|(access), \ 705 ptr, len, sysctl_handle_opaque, fmt, __DESCR(descr)); \ 706}) 707 708/* Oid for a struct. Specified by a pointer and a type. */ 709#define SYSCTL_STRUCT(parent, nbr, name, access, ptr, type, descr) \ 710 SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|(access), \ 711 ptr, sizeof(struct type), sysctl_handle_opaque, \ 712 "S," #type, descr); \ 713 CTASSERT(((access) & CTLTYPE) == 0 || \ 714 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE) 715 716#define SYSCTL_ADD_STRUCT(ctx, parent, nbr, name, access, ptr, type, descr) \ 717({ \ 718 CTASSERT(((access) & CTLTYPE) == 0 || \ 719 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE); \ 720 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_OPAQUE|(access), \ 721 (ptr), sizeof(struct type), \ 722 sysctl_handle_opaque, "S," #type, __DESCR(descr)); \ 723}) 724 725/* Oid for a procedure. Specified by a pointer and an arg. */ 726#define SYSCTL_PROC(parent, nbr, name, access, ptr, arg, handler, fmt, descr) \ 727 SYSCTL_OID(parent, nbr, name, (access), \ 728 ptr, arg, handler, fmt, descr); \ 729 CTASSERT(((access) & CTLTYPE) != 0) 730 731#define SYSCTL_ADD_PROC(ctx, parent, nbr, name, access, ptr, arg, handler, fmt, descr) \ 732({ \ 733 CTASSERT(((access) & CTLTYPE) != 0); \ 734 sysctl_add_oid(ctx, parent, nbr, name, (access), \ 735 (ptr), (arg), (handler), (fmt), __DESCR(descr)); \ 736}) 737 738/* Oid to handle limits on uma(9) zone specified by pointer. */ 739#define SYSCTL_UMA_MAX(parent, nbr, name, access, ptr, descr) \ 740 SYSCTL_OID(parent, nbr, name, \ 741 CTLTYPE_INT | CTLFLAG_MPSAFE | (access), \ 742 (ptr), 0, sysctl_handle_uma_zone_max, "I", descr); \ 743 CTASSERT(((access) & CTLTYPE) == 0 || \ 744 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT) 745 746#define SYSCTL_ADD_UMA_MAX(ctx, parent, nbr, name, access, ptr, descr) \ 747({ \ 748 uma_zone_t __ptr = (ptr); \ 749 CTASSERT(((access) & CTLTYPE) == 0 || \ 750 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT); \ 751 sysctl_add_oid(ctx, parent, nbr, name, \ 752 CTLTYPE_INT | CTLFLAG_MPSAFE | (access), \ 753 __ptr, 0, sysctl_handle_uma_zone_max, "I", __DESCR(descr)); \ 754}) 755 756/* Oid to obtain current use of uma(9) zone specified by pointer. */ 757#define SYSCTL_UMA_CUR(parent, nbr, name, access, ptr, descr) \ 758 SYSCTL_OID(parent, nbr, name, \ 759 CTLTYPE_INT | CTLFLAG_MPSAFE | CTLFLAG_RD | (access), \ 760 (ptr), 0, sysctl_handle_uma_zone_cur, "I", descr); \ 761 CTASSERT(((access) & CTLTYPE) == 0 || \ 762 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT) 763 764#define SYSCTL_ADD_UMA_CUR(ctx, parent, nbr, name, access, ptr, descr) \ 765({ \ 766 uma_zone_t __ptr = (ptr); \ 767 CTASSERT(((access) & CTLTYPE) == 0 || \ 768 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT); \ 769 sysctl_add_oid(ctx, parent, nbr, name, \ 770 CTLTYPE_INT | CTLFLAG_MPSAFE | CTLFLAG_RD | (access), \ 771 __ptr, 0, sysctl_handle_uma_zone_cur, "I", __DESCR(descr)); \ 772}) 773 774/* 775 * A macro to generate a read-only sysctl to indicate the presence of optional 776 * kernel features. 777 */ 778#define FEATURE(name, desc) \ 779 SYSCTL_INT(_kern_features, OID_AUTO, name, CTLFLAG_RD | CTLFLAG_CAPRD, \ 780 SYSCTL_NULL_INT_PTR, 1, desc) 781 782#endif /* _KERNEL */ 783 784/* 785 * Top-level identifiers 786 */ 787#define CTL_UNSPEC 0 /* unused */ 788#define CTL_KERN 1 /* "high kernel": proc, limits */ 789#define CTL_VM 2 /* virtual memory */ 790#define CTL_VFS 3 /* filesystem, mount type is next */ 791#define CTL_NET 4 /* network, see socket.h */ 792#define CTL_DEBUG 5 /* debugging parameters */ 793#define CTL_HW 6 /* generic cpu/io */ 794#define CTL_MACHDEP 7 /* machine dependent */ 795#define CTL_USER 8 /* user-level */ 796#define CTL_P1003_1B 9 /* POSIX 1003.1B */ 797 798/* 799 * CTL_KERN identifiers 800 */ 801#define KERN_OSTYPE 1 /* string: system version */ 802#define KERN_OSRELEASE 2 /* string: system release */ 803#define KERN_OSREV 3 /* int: system revision */ 804#define KERN_VERSION 4 /* string: compile time info */ 805#define KERN_MAXVNODES 5 /* int: max vnodes */ 806#define KERN_MAXPROC 6 /* int: max processes */ 807#define KERN_MAXFILES 7 /* int: max open files */ 808#define KERN_ARGMAX 8 /* int: max arguments to exec */ 809#define KERN_SECURELVL 9 /* int: system security level */ 810#define KERN_HOSTNAME 10 /* string: hostname */ 811#define KERN_HOSTID 11 /* int: host identifier */ 812#define KERN_CLOCKRATE 12 /* struct: struct clockrate */ 813#define KERN_VNODE 13 /* struct: vnode structures */ 814#define KERN_PROC 14 /* struct: process entries */ 815#define KERN_FILE 15 /* struct: file entries */ 816#define KERN_PROF 16 /* node: kernel profiling info */ 817#define KERN_POSIX1 17 /* int: POSIX.1 version */ 818#define KERN_NGROUPS 18 /* int: # of supplemental group ids */ 819#define KERN_JOB_CONTROL 19 /* int: is job control available */ 820#define KERN_SAVED_IDS 20 /* int: saved set-user/group-ID */ 821#define KERN_BOOTTIME 21 /* struct: time kernel was booted */ 822#define KERN_NISDOMAINNAME 22 /* string: YP domain name */ 823#define KERN_UPDATEINTERVAL 23 /* int: update process sleep time */ 824#define KERN_OSRELDATE 24 /* int: kernel release date */ 825#define KERN_NTP_PLL 25 /* node: NTP PLL control */ 826#define KERN_BOOTFILE 26 /* string: name of booted kernel */ 827#define KERN_MAXFILESPERPROC 27 /* int: max open files per proc */ 828#define KERN_MAXPROCPERUID 28 /* int: max processes per uid */ 829#define KERN_DUMPDEV 29 /* struct cdev *: device to dump on */ 830#define KERN_IPC 30 /* node: anything related to IPC */ 831#define KERN_DUMMY 31 /* unused */ 832#define KERN_PS_STRINGS 32 /* int: address of PS_STRINGS */ 833#define KERN_USRSTACK 33 /* int: address of USRSTACK */ 834#define KERN_LOGSIGEXIT 34 /* int: do we log sigexit procs? */ 835#define KERN_IOV_MAX 35 /* int: value of UIO_MAXIOV */ 836#define KERN_HOSTUUID 36 /* string: host UUID identifier */ 837#define KERN_ARND 37 /* int: from arc4rand() */ 838/* 839 * KERN_PROC subtypes 840 */ 841#define KERN_PROC_ALL 0 /* everything */ 842#define KERN_PROC_PID 1 /* by process id */ 843#define KERN_PROC_PGRP 2 /* by process group id */ 844#define KERN_PROC_SESSION 3 /* by session of pid */ 845#define KERN_PROC_TTY 4 /* by controlling tty */ 846#define KERN_PROC_UID 5 /* by effective uid */ 847#define KERN_PROC_RUID 6 /* by real uid */ 848#define KERN_PROC_ARGS 7 /* get/set arguments/proctitle */ 849#define KERN_PROC_PROC 8 /* only return procs */ 850#define KERN_PROC_SV_NAME 9 /* get syscall vector name */ 851#define KERN_PROC_RGID 10 /* by real group id */ 852#define KERN_PROC_GID 11 /* by effective group id */ 853#define KERN_PROC_PATHNAME 12 /* path to executable */ 854#define KERN_PROC_OVMMAP 13 /* Old VM map entries for process */ 855#define KERN_PROC_OFILEDESC 14 /* Old file descriptors for process */ 856#define KERN_PROC_KSTACK 15 /* Kernel stacks for process */ 857#define KERN_PROC_INC_THREAD 0x10 /* 858 * modifier for pid, pgrp, tty, 859 * uid, ruid, gid, rgid and proc 860 * This effectively uses 16-31 861 */ 862#define KERN_PROC_VMMAP 32 /* VM map entries for process */ 863#define KERN_PROC_FILEDESC 33 /* File descriptors for process */ 864#define KERN_PROC_GROUPS 34 /* process groups */ 865#define KERN_PROC_ENV 35 /* get environment */ 866#define KERN_PROC_AUXV 36 /* get ELF auxiliary vector */ 867#define KERN_PROC_RLIMIT 37 /* process resource limits */ 868#define KERN_PROC_PS_STRINGS 38 /* get ps_strings location */ 869#define KERN_PROC_UMASK 39 /* process umask */ 870#define KERN_PROC_OSREL 40 /* osreldate for process binary */ 871#define KERN_PROC_SIGTRAMP 41 /* signal trampoline location */ 872#define KERN_PROC_CWD 42 /* process current working directory */ 873#define KERN_PROC_NFDS 43 /* number of open file descriptors */ 874 875/* 876 * KERN_IPC identifiers 877 */ 878#define KIPC_MAXSOCKBUF 1 /* int: max size of a socket buffer */ 879#define KIPC_SOCKBUF_WASTE 2 /* int: wastage factor in sockbuf */ 880#define KIPC_SOMAXCONN 3 /* int: max length of connection q */ 881#define KIPC_MAX_LINKHDR 4 /* int: max length of link header */ 882#define KIPC_MAX_PROTOHDR 5 /* int: max length of network header */ 883#define KIPC_MAX_HDR 6 /* int: max total length of headers */ 884#define KIPC_MAX_DATALEN 7 /* int: max length of data? */ 885 886/* 887 * CTL_HW identifiers 888 */ 889#define HW_MACHINE 1 /* string: machine class */ 890#define HW_MODEL 2 /* string: specific machine model */ 891#define HW_NCPU 3 /* int: number of cpus */ 892#define HW_BYTEORDER 4 /* int: machine byte order */ 893#define HW_PHYSMEM 5 /* int: total memory */ 894#define HW_USERMEM 6 /* int: non-kernel memory */ 895#define HW_PAGESIZE 7 /* int: software page size */ 896#define HW_DISKNAMES 8 /* strings: disk drive names */ 897#define HW_DISKSTATS 9 /* struct: diskstats[] */ 898#define HW_FLOATINGPT 10 /* int: has HW floating point? */ 899#define HW_MACHINE_ARCH 11 /* string: machine architecture */ 900#define HW_REALMEM 12 /* int: 'real' memory */ 901 902/* 903 * CTL_USER definitions 904 */ 905#define USER_CS_PATH 1 /* string: _CS_PATH */ 906#define USER_BC_BASE_MAX 2 /* int: BC_BASE_MAX */ 907#define USER_BC_DIM_MAX 3 /* int: BC_DIM_MAX */ 908#define USER_BC_SCALE_MAX 4 /* int: BC_SCALE_MAX */ 909#define USER_BC_STRING_MAX 5 /* int: BC_STRING_MAX */ 910#define USER_COLL_WEIGHTS_MAX 6 /* int: COLL_WEIGHTS_MAX */ 911#define USER_EXPR_NEST_MAX 7 /* int: EXPR_NEST_MAX */ 912#define USER_LINE_MAX 8 /* int: LINE_MAX */ 913#define USER_RE_DUP_MAX 9 /* int: RE_DUP_MAX */ 914#define USER_POSIX2_VERSION 10 /* int: POSIX2_VERSION */ 915#define USER_POSIX2_C_BIND 11 /* int: POSIX2_C_BIND */ 916#define USER_POSIX2_C_DEV 12 /* int: POSIX2_C_DEV */ 917#define USER_POSIX2_CHAR_TERM 13 /* int: POSIX2_CHAR_TERM */ 918#define USER_POSIX2_FORT_DEV 14 /* int: POSIX2_FORT_DEV */ 919#define USER_POSIX2_FORT_RUN 15 /* int: POSIX2_FORT_RUN */ 920#define USER_POSIX2_LOCALEDEF 16 /* int: POSIX2_LOCALEDEF */ 921#define USER_POSIX2_SW_DEV 17 /* int: POSIX2_SW_DEV */ 922#define USER_POSIX2_UPE 18 /* int: POSIX2_UPE */ 923#define USER_STREAM_MAX 19 /* int: POSIX2_STREAM_MAX */ 924#define USER_TZNAME_MAX 20 /* int: POSIX2_TZNAME_MAX */ 925 926#define CTL_P1003_1B_ASYNCHRONOUS_IO 1 /* boolean */ 927#define CTL_P1003_1B_MAPPED_FILES 2 /* boolean */ 928#define CTL_P1003_1B_MEMLOCK 3 /* boolean */ 929#define CTL_P1003_1B_MEMLOCK_RANGE 4 /* boolean */ 930#define CTL_P1003_1B_MEMORY_PROTECTION 5 /* boolean */ 931#define CTL_P1003_1B_MESSAGE_PASSING 6 /* boolean */ 932#define CTL_P1003_1B_PRIORITIZED_IO 7 /* boolean */ 933#define CTL_P1003_1B_PRIORITY_SCHEDULING 8 /* boolean */ 934#define CTL_P1003_1B_REALTIME_SIGNALS 9 /* boolean */ 935#define CTL_P1003_1B_SEMAPHORES 10 /* boolean */ 936#define CTL_P1003_1B_FSYNC 11 /* boolean */ 937#define CTL_P1003_1B_SHARED_MEMORY_OBJECTS 12 /* boolean */ 938#define CTL_P1003_1B_SYNCHRONIZED_IO 13 /* boolean */ 939#define CTL_P1003_1B_TIMERS 14 /* boolean */ 940#define CTL_P1003_1B_AIO_LISTIO_MAX 15 /* int */ 941#define CTL_P1003_1B_AIO_MAX 16 /* int */ 942#define CTL_P1003_1B_AIO_PRIO_DELTA_MAX 17 /* int */ 943#define CTL_P1003_1B_DELAYTIMER_MAX 18 /* int */ 944#define CTL_P1003_1B_MQ_OPEN_MAX 19 /* int */ 945#define CTL_P1003_1B_PAGESIZE 20 /* int */ 946#define CTL_P1003_1B_RTSIG_MAX 21 /* int */ 947#define CTL_P1003_1B_SEM_NSEMS_MAX 22 /* int */ 948#define CTL_P1003_1B_SEM_VALUE_MAX 23 /* int */ 949#define CTL_P1003_1B_SIGQUEUE_MAX 24 /* int */ 950#define CTL_P1003_1B_TIMER_MAX 25 /* int */ 951 952#define CTL_P1003_1B_MAXID 26 953 954#ifdef _KERNEL 955 956/* 957 * Declare some common oids. 958 */ 959extern struct sysctl_oid_list sysctl__children; 960SYSCTL_DECL(_kern); 961SYSCTL_DECL(_kern_features); 962SYSCTL_DECL(_kern_ipc); 963SYSCTL_DECL(_kern_proc); 964SYSCTL_DECL(_kern_sched); 965SYSCTL_DECL(_kern_sched_stats); 966SYSCTL_DECL(_sysctl); 967SYSCTL_DECL(_vm); 968SYSCTL_DECL(_vm_stats); 969SYSCTL_DECL(_vm_stats_misc); 970SYSCTL_DECL(_vfs); 971SYSCTL_DECL(_net); 972SYSCTL_DECL(_debug); 973SYSCTL_DECL(_debug_sizeof); 974SYSCTL_DECL(_dev); 975SYSCTL_DECL(_hw); 976SYSCTL_DECL(_hw_bus); 977SYSCTL_DECL(_hw_bus_devices); 978SYSCTL_DECL(_hw_bus_info); 979SYSCTL_DECL(_machdep); 980SYSCTL_DECL(_user); 981SYSCTL_DECL(_compat); 982SYSCTL_DECL(_regression); 983SYSCTL_DECL(_security); 984SYSCTL_DECL(_security_bsd); 985 986extern char machine[]; 987extern char osrelease[]; 988extern char ostype[]; 989extern char kern_ident[]; 990 991/* Dynamic oid handling */ 992struct sysctl_oid *sysctl_add_oid(struct sysctl_ctx_list *clist, 993 struct sysctl_oid_list *parent, int nbr, const char *name, int kind, 994 void *arg1, intmax_t arg2, int (*handler)(SYSCTL_HANDLER_ARGS), 995 const char *fmt, const char *descr); 996int sysctl_remove_name(struct sysctl_oid *parent, const char *name, int del, 997 int recurse); 998void sysctl_rename_oid(struct sysctl_oid *oidp, const char *name); 999int sysctl_move_oid(struct sysctl_oid *oidp, 1000 struct sysctl_oid_list *parent); 1001int sysctl_remove_oid(struct sysctl_oid *oidp, int del, int recurse); 1002int sysctl_ctx_init(struct sysctl_ctx_list *clist); 1003int sysctl_ctx_free(struct sysctl_ctx_list *clist); 1004struct sysctl_ctx_entry *sysctl_ctx_entry_add(struct sysctl_ctx_list *clist, 1005 struct sysctl_oid *oidp); 1006struct sysctl_ctx_entry *sysctl_ctx_entry_find(struct sysctl_ctx_list *clist, 1007 struct sysctl_oid *oidp); 1008int sysctl_ctx_entry_del(struct sysctl_ctx_list *clist, 1009 struct sysctl_oid *oidp); 1010 1011int kernel_sysctl(struct thread *td, int *name, u_int namelen, void *old, 1012 size_t *oldlenp, void *new, size_t newlen, size_t *retval, 1013 int flags); 1014int kernel_sysctlbyname(struct thread *td, char *name, void *old, 1015 size_t *oldlenp, void *new, size_t newlen, size_t *retval, 1016 int flags); 1017int userland_sysctl(struct thread *td, int *name, u_int namelen, void *old, 1018 size_t *oldlenp, int inkernel, void *new, size_t newlen, 1019 size_t *retval, int flags); 1020int sysctl_find_oid(int *name, u_int namelen, struct sysctl_oid **noid, 1021 int *nindx, struct sysctl_req *req); 1022void sysctl_wlock(void); 1023void sysctl_wunlock(void); 1024int sysctl_wire_old_buffer(struct sysctl_req *req, size_t len); 1025 1026struct sbuf; 1027struct sbuf *sbuf_new_for_sysctl(struct sbuf *, char *, int, 1028 struct sysctl_req *); 1029#else /* !_KERNEL */ 1030#include <sys/cdefs.h> 1031 1032__BEGIN_DECLS 1033int sysctl(const int *, u_int, void *, size_t *, const void *, size_t); 1034int sysctlbyname(const char *, void *, size_t *, const void *, size_t); 1035int sysctlnametomib(const char *, int *, size_t *); 1036__END_DECLS 1037#endif /* _KERNEL */ 1038 1039#endif /* !_SYS_SYSCTL_H_ */ 1040