sysctl.h revision 290505
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 290505 2015-11-07 18:26:32Z cem $ 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); 207 208int sysctl_handle_uma_zone_max(SYSCTL_HANDLER_ARGS); 209int sysctl_handle_uma_zone_cur(SYSCTL_HANDLER_ARGS); 210 211int sysctl_dpcpu_int(SYSCTL_HANDLER_ARGS); 212int sysctl_dpcpu_long(SYSCTL_HANDLER_ARGS); 213int sysctl_dpcpu_quad(SYSCTL_HANDLER_ARGS); 214 215/* 216 * These functions are used to add/remove an oid from the mib. 217 */ 218void sysctl_register_oid(struct sysctl_oid *oidp); 219void sysctl_unregister_oid(struct sysctl_oid *oidp); 220 221/* Declare a static oid to allow child oids to be added to it. */ 222#define SYSCTL_DECL(name) \ 223 extern struct sysctl_oid sysctl__##name 224 225/* Hide these in macros. */ 226#define SYSCTL_CHILDREN(oid_ptr) (&(oid_ptr)->oid_children) 227#define SYSCTL_PARENT(oid_ptr) \ 228 (((oid_ptr)->oid_parent != &sysctl__children) ? \ 229 __containerof((oid_ptr)->oid_parent, struct sysctl_oid, \ 230 oid_children) : (struct sysctl_oid *)NULL) 231#define SYSCTL_STATIC_CHILDREN(oid_name) (&sysctl__##oid_name.oid_children) 232 233/* === Structs and macros related to context handling. === */ 234 235/* All dynamically created sysctls can be tracked in a context list. */ 236struct sysctl_ctx_entry { 237 struct sysctl_oid *entry; 238 TAILQ_ENTRY(sysctl_ctx_entry) link; 239}; 240 241TAILQ_HEAD(sysctl_ctx_list, sysctl_ctx_entry); 242 243#define SYSCTL_NODE_CHILDREN(parent, name) \ 244 sysctl__##parent##_##name.oid_children 245 246#ifndef NO_SYSCTL_DESCR 247#define __DESCR(d) d 248#else 249#define __DESCR(d) "" 250#endif 251 252/* This macro is only for internal use */ 253#define SYSCTL_OID_RAW(id, parent_child_head, nbr, name, kind, a1, a2, handler, fmt, descr) \ 254 struct sysctl_oid id = { \ 255 .oid_parent = (parent_child_head), \ 256 .oid_children = SLIST_HEAD_INITIALIZER(&id.oid_children), \ 257 .oid_number = (nbr), \ 258 .oid_kind = (kind), \ 259 .oid_arg1 = (a1), \ 260 .oid_arg2 = (a2), \ 261 .oid_name = (name), \ 262 .oid_handler = (handler), \ 263 .oid_fmt = (fmt), \ 264 .oid_descr = __DESCR(descr) \ 265 }; \ 266 DATA_SET(sysctl_set, id) 267 268/* This constructs a static "raw" MIB oid. */ 269#define SYSCTL_OID(parent, nbr, name, kind, a1, a2, handler, fmt, descr) \ 270 static SYSCTL_OID_RAW(sysctl__##parent##_##name, \ 271 SYSCTL_CHILDREN(&sysctl__##parent), \ 272 nbr, #name, kind, a1, a2, handler, fmt, descr) 273 274/* This constructs a global "raw" MIB oid. */ 275#define SYSCTL_OID_GLOBAL(parent, nbr, name, kind, a1, a2, handler, fmt, descr) \ 276 SYSCTL_OID_RAW(sysctl__##parent##_##name, \ 277 SYSCTL_CHILDREN(&sysctl__##parent), \ 278 nbr, #name, kind, a1, a2, handler, fmt, descr) 279 280#define SYSCTL_ADD_OID(ctx, parent, nbr, name, kind, a1, a2, handler, fmt, descr) \ 281 sysctl_add_oid(ctx, parent, nbr, name, kind, a1, a2, handler, fmt, __DESCR(descr)) 282 283/* This constructs a root node from which other nodes can hang. */ 284#define SYSCTL_ROOT_NODE(nbr, name, access, handler, descr) \ 285 SYSCTL_OID_RAW(sysctl___##name, &sysctl__children, \ 286 nbr, #name, CTLTYPE_NODE|(access), NULL, 0, \ 287 handler, "N", descr); \ 288 CTASSERT(((access) & CTLTYPE) == 0 || \ 289 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_NODE) 290 291/* This constructs a node from which other oids can hang. */ 292#define SYSCTL_NODE(parent, nbr, name, access, handler, descr) \ 293 SYSCTL_OID_GLOBAL(parent, nbr, name, CTLTYPE_NODE|(access), \ 294 NULL, 0, handler, "N", descr); \ 295 CTASSERT(((access) & CTLTYPE) == 0 || \ 296 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_NODE) 297 298#define SYSCTL_ADD_NODE(ctx, parent, nbr, name, access, handler, descr) \ 299({ \ 300 CTASSERT(((access) & CTLTYPE) == 0 || \ 301 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_NODE); \ 302 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_NODE|(access), \ 303 NULL, 0, handler, "N", __DESCR(descr)); \ 304}) 305 306#define SYSCTL_ADD_ROOT_NODE(ctx, nbr, name, access, handler, descr) \ 307({ \ 308 CTASSERT(((access) & CTLTYPE) == 0 || \ 309 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_NODE); \ 310 sysctl_add_oid(ctx, &sysctl__children, nbr, name, \ 311 CTLTYPE_NODE|(access), \ 312 NULL, 0, handler, "N", __DESCR(descr)); \ 313}) 314 315/* Oid for a string. len can be 0 to indicate '\0' termination. */ 316#define SYSCTL_STRING(parent, nbr, name, access, arg, len, descr) \ 317 SYSCTL_OID(parent, nbr, name, CTLTYPE_STRING|(access), \ 318 arg, len, sysctl_handle_string, "A", descr); \ 319 CTASSERT(((access) & CTLTYPE) == 0 || \ 320 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_STRING) 321 322#define SYSCTL_ADD_STRING(ctx, parent, nbr, name, access, arg, len, descr) \ 323({ \ 324 char *__arg = (arg); \ 325 CTASSERT(((access) & CTLTYPE) == 0 || \ 326 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_STRING); \ 327 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_STRING|(access), \ 328 __arg, len, sysctl_handle_string, "A", __DESCR(descr)); \ 329}) 330 331/* Oid for a signed 8-bit int. If ptr is NULL, val is returned. */ 332#define SYSCTL_NULL_S8_PTR ((int8_t *)NULL) 333#define SYSCTL_S8(parent, nbr, name, access, ptr, val, descr) \ 334 SYSCTL_OID(parent, nbr, name, \ 335 CTLTYPE_S8 | CTLFLAG_MPSAFE | (access), \ 336 ptr, val, sysctl_handle_8, "C", descr); \ 337 CTASSERT((((access) & CTLTYPE) == 0 || \ 338 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S8) && \ 339 sizeof(int8_t) == sizeof(*(ptr))) 340 341#define SYSCTL_ADD_S8(ctx, parent, nbr, name, access, ptr, val, descr) \ 342({ \ 343 int8_t *__ptr = (ptr); \ 344 CTASSERT(((access) & CTLTYPE) == 0 || \ 345 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S8); \ 346 sysctl_add_oid(ctx, parent, nbr, name, \ 347 CTLTYPE_S8 | CTLFLAG_MPSAFE | (access), \ 348 __ptr, val, sysctl_handle_8, "C", __DESCR(descr)); \ 349}) 350 351/* Oid for an unsigned 8-bit int. If ptr is NULL, val is returned. */ 352#define SYSCTL_NULL_U8_PTR ((uint8_t *)NULL) 353#define SYSCTL_U8(parent, nbr, name, access, ptr, val, descr) \ 354 SYSCTL_OID(parent, nbr, name, \ 355 CTLTYPE_U8 | CTLFLAG_MPSAFE | (access), \ 356 ptr, val, sysctl_handle_8, "CU", descr); \ 357 CTASSERT((((access) & CTLTYPE) == 0 || \ 358 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U8) && \ 359 sizeof(uint8_t) == sizeof(*(ptr))) 360 361#define SYSCTL_ADD_U8(ctx, parent, nbr, name, access, ptr, val, descr) \ 362({ \ 363 uint8_t *__ptr = (ptr); \ 364 CTASSERT(((access) & CTLTYPE) == 0 || \ 365 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U8); \ 366 sysctl_add_oid(ctx, parent, nbr, name, \ 367 CTLTYPE_U8 | CTLFLAG_MPSAFE | (access), \ 368 __ptr, val, sysctl_handle_8, "CU", __DESCR(descr)); \ 369}) 370 371/* Oid for a signed 16-bit int. If ptr is NULL, val is returned. */ 372#define SYSCTL_NULL_S16_PTR ((int16_t *)NULL) 373#define SYSCTL_S16(parent, nbr, name, access, ptr, val, descr) \ 374 SYSCTL_OID(parent, nbr, name, \ 375 CTLTYPE_S16 | CTLFLAG_MPSAFE | (access), \ 376 ptr, val, sysctl_handle_16, "S", descr); \ 377 CTASSERT((((access) & CTLTYPE) == 0 || \ 378 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S16) && \ 379 sizeof(int16_t) == sizeof(*(ptr))) 380 381#define SYSCTL_ADD_S16(ctx, parent, nbr, name, access, ptr, val, descr) \ 382({ \ 383 int16_t *__ptr = (ptr); \ 384 CTASSERT(((access) & CTLTYPE) == 0 || \ 385 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S16); \ 386 sysctl_add_oid(ctx, parent, nbr, name, \ 387 CTLTYPE_S16 | CTLFLAG_MPSAFE | (access), \ 388 __ptr, val, sysctl_handle_16, "S", __DESCR(descr)); \ 389}) 390 391/* Oid for an unsigned 16-bit int. If ptr is NULL, val is returned. */ 392#define SYSCTL_NULL_U16_PTR ((uint16_t *)NULL) 393#define SYSCTL_U16(parent, nbr, name, access, ptr, val, descr) \ 394 SYSCTL_OID(parent, nbr, name, \ 395 CTLTYPE_U16 | CTLFLAG_MPSAFE | (access), \ 396 ptr, val, sysctl_handle_16, "SU", descr); \ 397 CTASSERT((((access) & CTLTYPE) == 0 || \ 398 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U16) && \ 399 sizeof(uint16_t) == sizeof(*(ptr))) 400 401#define SYSCTL_ADD_U16(ctx, parent, nbr, name, access, ptr, val, descr) \ 402({ \ 403 uint16_t *__ptr = (ptr); \ 404 CTASSERT(((access) & CTLTYPE) == 0 || \ 405 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U16); \ 406 sysctl_add_oid(ctx, parent, nbr, name, \ 407 CTLTYPE_U16 | CTLFLAG_MPSAFE | (access), \ 408 __ptr, val, sysctl_handle_16, "SU", __DESCR(descr)); \ 409}) 410 411/* Oid for a signed 32-bit int. If ptr is NULL, val is returned. */ 412#define SYSCTL_NULL_S32_PTR ((int32_t *)NULL) 413#define SYSCTL_S32(parent, nbr, name, access, ptr, val, descr) \ 414 SYSCTL_OID(parent, nbr, name, \ 415 CTLTYPE_S32 | CTLFLAG_MPSAFE | (access), \ 416 ptr, val, sysctl_handle_32, "I", descr); \ 417 CTASSERT((((access) & CTLTYPE) == 0 || \ 418 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S32) && \ 419 sizeof(int32_t) == sizeof(*(ptr))) 420 421#define SYSCTL_ADD_S32(ctx, parent, nbr, name, access, ptr, val, descr) \ 422({ \ 423 int32_t *__ptr = (ptr); \ 424 CTASSERT(((access) & CTLTYPE) == 0 || \ 425 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S32); \ 426 sysctl_add_oid(ctx, parent, nbr, name, \ 427 CTLTYPE_S32 | CTLFLAG_MPSAFE | (access), \ 428 __ptr, val, sysctl_handle_32, "I", __DESCR(descr)); \ 429}) 430 431/* Oid for an unsigned 32-bit int. If ptr is NULL, val is returned. */ 432#define SYSCTL_NULL_U32_PTR ((uint32_t *)NULL) 433#define SYSCTL_U32(parent, nbr, name, access, ptr, val, descr) \ 434 SYSCTL_OID(parent, nbr, name, \ 435 CTLTYPE_U32 | CTLFLAG_MPSAFE | (access), \ 436 ptr, val, sysctl_handle_32, "IU", descr); \ 437 CTASSERT((((access) & CTLTYPE) == 0 || \ 438 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U32) && \ 439 sizeof(uint32_t) == sizeof(*(ptr))) 440 441#define SYSCTL_ADD_U32(ctx, parent, nbr, name, access, ptr, val, descr) \ 442({ \ 443 uint32_t *__ptr = (ptr); \ 444 CTASSERT(((access) & CTLTYPE) == 0 || \ 445 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U32); \ 446 sysctl_add_oid(ctx, parent, nbr, name, \ 447 CTLTYPE_U32 | CTLFLAG_MPSAFE | (access), \ 448 __ptr, val, sysctl_handle_32, "IU", __DESCR(descr)); \ 449}) 450 451/* Oid for a signed 64-bit int. If ptr is NULL, val is returned. */ 452#define SYSCTL_NULL_S64_PTR ((int64_t *)NULL) 453#define SYSCTL_S64(parent, nbr, name, access, ptr, val, descr) \ 454 SYSCTL_OID(parent, nbr, name, \ 455 CTLTYPE_S64 | CTLFLAG_MPSAFE | (access), \ 456 ptr, val, sysctl_handle_64, "Q", descr); \ 457 CTASSERT((((access) & CTLTYPE) == 0 || \ 458 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64) && \ 459 sizeof(int64_t) == sizeof(*(ptr))) 460 461#define SYSCTL_ADD_S64(ctx, parent, nbr, name, access, ptr, val, descr) \ 462({ \ 463 int64_t *__ptr = (ptr); \ 464 CTASSERT(((access) & CTLTYPE) == 0 || \ 465 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64); \ 466 sysctl_add_oid(ctx, parent, nbr, name, \ 467 CTLTYPE_S64 | CTLFLAG_MPSAFE | (access), \ 468 __ptr, val, sysctl_handle_64, "Q", __DESCR(descr)); \ 469}) 470 471/* Oid for an unsigned 64-bit int. If ptr is NULL, val is returned. */ 472#define SYSCTL_NULL_U64_PTR ((uint64_t *)NULL) 473#define SYSCTL_U64(parent, nbr, name, access, ptr, val, descr) \ 474 SYSCTL_OID(parent, nbr, name, \ 475 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \ 476 ptr, val, sysctl_handle_64, "QU", descr); \ 477 CTASSERT((((access) & CTLTYPE) == 0 || \ 478 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64) && \ 479 sizeof(uint64_t) == sizeof(*(ptr))) 480 481#define SYSCTL_ADD_U64(ctx, parent, nbr, name, access, ptr, val, descr) \ 482({ \ 483 uint64_t *__ptr = (ptr); \ 484 CTASSERT(((access) & CTLTYPE) == 0 || \ 485 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64); \ 486 sysctl_add_oid(ctx, parent, nbr, name, \ 487 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \ 488 __ptr, val, sysctl_handle_64, "QU", __DESCR(descr)); \ 489}) 490 491/* Oid for an int. If ptr is SYSCTL_NULL_INT_PTR, val is returned. */ 492#define SYSCTL_NULL_INT_PTR ((int *)NULL) 493#define SYSCTL_INT(parent, nbr, name, access, ptr, val, descr) \ 494 SYSCTL_OID(parent, nbr, name, \ 495 CTLTYPE_INT | CTLFLAG_MPSAFE | (access), \ 496 ptr, val, sysctl_handle_int, "I", descr); \ 497 CTASSERT((((access) & CTLTYPE) == 0 || \ 498 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT) && \ 499 sizeof(int) == sizeof(*(ptr))) 500 501#define SYSCTL_ADD_INT(ctx, parent, nbr, name, access, ptr, val, descr) \ 502({ \ 503 int *__ptr = (ptr); \ 504 CTASSERT(((access) & CTLTYPE) == 0 || \ 505 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT); \ 506 sysctl_add_oid(ctx, parent, nbr, name, \ 507 CTLTYPE_INT | CTLFLAG_MPSAFE | (access), \ 508 __ptr, val, sysctl_handle_int, "I", __DESCR(descr)); \ 509}) 510 511/* Oid for an unsigned int. If ptr is NULL, val is returned. */ 512#define SYSCTL_NULL_UINT_PTR ((unsigned *)NULL) 513#define SYSCTL_UINT(parent, nbr, name, access, ptr, val, descr) \ 514 SYSCTL_OID(parent, nbr, name, \ 515 CTLTYPE_UINT | CTLFLAG_MPSAFE | (access), \ 516 ptr, val, sysctl_handle_int, "IU", descr); \ 517 CTASSERT((((access) & CTLTYPE) == 0 || \ 518 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_UINT) && \ 519 sizeof(unsigned) == sizeof(*(ptr))) 520 521#define SYSCTL_ADD_UINT(ctx, parent, nbr, name, access, ptr, val, descr) \ 522({ \ 523 unsigned *__ptr = (ptr); \ 524 CTASSERT(((access) & CTLTYPE) == 0 || \ 525 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_UINT); \ 526 sysctl_add_oid(ctx, parent, nbr, name, \ 527 CTLTYPE_UINT | CTLFLAG_MPSAFE | (access), \ 528 __ptr, val, sysctl_handle_int, "IU", __DESCR(descr)); \ 529}) 530 531/* Oid for a long. The pointer must be non NULL. */ 532#define SYSCTL_NULL_LONG_PTR ((long *)NULL) 533#define SYSCTL_LONG(parent, nbr, name, access, ptr, val, descr) \ 534 SYSCTL_OID(parent, nbr, name, \ 535 CTLTYPE_LONG | CTLFLAG_MPSAFE | (access), \ 536 ptr, val, sysctl_handle_long, "L", descr); \ 537 CTASSERT((((access) & CTLTYPE) == 0 || \ 538 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_LONG) && \ 539 sizeof(long) == sizeof(*(ptr))) 540 541#define SYSCTL_ADD_LONG(ctx, parent, nbr, name, access, ptr, descr) \ 542({ \ 543 long *__ptr = (ptr); \ 544 CTASSERT(((access) & CTLTYPE) == 0 || \ 545 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_LONG); \ 546 sysctl_add_oid(ctx, parent, nbr, name, \ 547 CTLTYPE_LONG | CTLFLAG_MPSAFE | (access), \ 548 __ptr, 0, sysctl_handle_long, "L", __DESCR(descr)); \ 549}) 550 551/* Oid for an unsigned long. The pointer must be non NULL. */ 552#define SYSCTL_NULL_ULONG_PTR ((unsigned long *)NULL) 553#define SYSCTL_ULONG(parent, nbr, name, access, ptr, val, descr) \ 554 SYSCTL_OID(parent, nbr, name, \ 555 CTLTYPE_ULONG | CTLFLAG_MPSAFE | (access), \ 556 ptr, val, sysctl_handle_long, "LU", descr); \ 557 CTASSERT((((access) & CTLTYPE) == 0 || \ 558 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_ULONG) && \ 559 sizeof(unsigned long) == sizeof(*(ptr))) 560 561#define SYSCTL_ADD_ULONG(ctx, parent, nbr, name, access, ptr, descr) \ 562({ \ 563 unsigned long *__ptr = (ptr); \ 564 CTASSERT(((access) & CTLTYPE) == 0 || \ 565 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_ULONG); \ 566 sysctl_add_oid(ctx, parent, nbr, name, \ 567 CTLTYPE_ULONG | CTLFLAG_MPSAFE | (access), \ 568 __ptr, 0, sysctl_handle_long, "LU", __DESCR(descr)); \ 569}) 570 571/* Oid for a quad. The pointer must be non NULL. */ 572#define SYSCTL_NULL_QUAD_PTR ((int64_t *)NULL) 573#define SYSCTL_QUAD(parent, nbr, name, access, ptr, val, descr) \ 574 SYSCTL_OID(parent, nbr, name, \ 575 CTLTYPE_S64 | CTLFLAG_MPSAFE | (access), \ 576 ptr, val, sysctl_handle_64, "Q", descr); \ 577 CTASSERT((((access) & CTLTYPE) == 0 || \ 578 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64) && \ 579 sizeof(int64_t) == sizeof(*(ptr))) 580 581#define SYSCTL_ADD_QUAD(ctx, parent, nbr, name, access, ptr, descr) \ 582({ \ 583 int64_t *__ptr = (ptr); \ 584 CTASSERT(((access) & CTLTYPE) == 0 || \ 585 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64); \ 586 sysctl_add_oid(ctx, parent, nbr, name, \ 587 CTLTYPE_S64 | CTLFLAG_MPSAFE | (access), \ 588 __ptr, 0, sysctl_handle_64, "Q", __DESCR(descr)); \ 589}) 590 591#define SYSCTL_NULL_UQUAD_PTR ((uint64_t *)NULL) 592#define SYSCTL_UQUAD(parent, nbr, name, access, ptr, val, descr) \ 593 SYSCTL_OID(parent, nbr, name, \ 594 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \ 595 ptr, val, sysctl_handle_64, "QU", descr); \ 596 CTASSERT((((access) & CTLTYPE) == 0 || \ 597 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64) && \ 598 sizeof(uint64_t) == sizeof(*(ptr))) 599 600#define SYSCTL_ADD_UQUAD(ctx, parent, nbr, name, access, ptr, descr) \ 601({ \ 602 uint64_t *__ptr = (ptr); \ 603 CTASSERT(((access) & CTLTYPE) == 0 || \ 604 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64); \ 605 sysctl_add_oid(ctx, parent, nbr, name, \ 606 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \ 607 __ptr, 0, sysctl_handle_64, "QU", __DESCR(descr)); \ 608}) 609 610/* Oid for a CPU dependant variable */ 611#define SYSCTL_ADD_UAUTO(ctx, parent, nbr, name, access, ptr, descr) \ 612({ \ 613 struct sysctl_oid *__ret; \ 614 CTASSERT((sizeof(uint64_t) == sizeof(*(ptr)) || \ 615 sizeof(unsigned) == sizeof(*(ptr))) && \ 616 ((access) & CTLTYPE) == 0); \ 617 if (sizeof(uint64_t) == sizeof(*(ptr))) { \ 618 __ret = sysctl_add_oid(ctx, parent, nbr, name, \ 619 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \ 620 (ptr), 0, sysctl_handle_64, "QU", \ 621 __DESCR(descr)); \ 622 } else { \ 623 __ret = sysctl_add_oid(ctx, parent, nbr, name, \ 624 CTLTYPE_UINT | CTLFLAG_MPSAFE | (access), \ 625 (ptr), 0, sysctl_handle_int, "IU", \ 626 __DESCR(descr)); \ 627 } \ 628 __ret; \ 629}) 630 631/* Oid for a 64-bit unsigned counter(9). The pointer must be non NULL. */ 632#define SYSCTL_COUNTER_U64(parent, nbr, name, access, ptr, descr) \ 633 SYSCTL_OID(parent, nbr, name, \ 634 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \ 635 (ptr), 0, sysctl_handle_counter_u64, "QU", descr); \ 636 CTASSERT((((access) & CTLTYPE) == 0 || \ 637 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64) && \ 638 sizeof(counter_u64_t) == sizeof(*(ptr)) && \ 639 sizeof(uint64_t) == sizeof(**(ptr))) 640 641#define SYSCTL_ADD_COUNTER_U64(ctx, parent, nbr, name, access, ptr, descr) \ 642({ \ 643 counter_u64_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_counter_u64, "QU", __DESCR(descr)); \ 649}) 650 651/* Oid for an opaque object. Specified by a pointer and a length. */ 652#define SYSCTL_OPAQUE(parent, nbr, name, access, ptr, len, fmt, descr) \ 653 SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|(access), \ 654 ptr, len, sysctl_handle_opaque, fmt, descr); \ 655 CTASSERT(((access) & CTLTYPE) == 0 || \ 656 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE) 657 658#define SYSCTL_ADD_OPAQUE(ctx, parent, nbr, name, access, ptr, len, fmt, descr) \ 659({ \ 660 CTASSERT(((access) & CTLTYPE) == 0 || \ 661 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE); \ 662 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_OPAQUE|(access), \ 663 ptr, len, sysctl_handle_opaque, fmt, __DESCR(descr)); \ 664}) 665 666/* Oid for a struct. Specified by a pointer and a type. */ 667#define SYSCTL_STRUCT(parent, nbr, name, access, ptr, type, descr) \ 668 SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|(access), \ 669 ptr, sizeof(struct type), sysctl_handle_opaque, \ 670 "S," #type, descr); \ 671 CTASSERT(((access) & CTLTYPE) == 0 || \ 672 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE) 673 674#define SYSCTL_ADD_STRUCT(ctx, parent, nbr, name, access, ptr, type, descr) \ 675({ \ 676 CTASSERT(((access) & CTLTYPE) == 0 || \ 677 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE); \ 678 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_OPAQUE|(access), \ 679 (ptr), sizeof(struct type), \ 680 sysctl_handle_opaque, "S," #type, __DESCR(descr)); \ 681}) 682 683/* Oid for a procedure. Specified by a pointer and an arg. */ 684#define SYSCTL_PROC(parent, nbr, name, access, ptr, arg, handler, fmt, descr) \ 685 SYSCTL_OID(parent, nbr, name, (access), \ 686 ptr, arg, handler, fmt, descr); \ 687 CTASSERT(((access) & CTLTYPE) != 0) 688 689#define SYSCTL_ADD_PROC(ctx, parent, nbr, name, access, ptr, arg, handler, fmt, descr) \ 690({ \ 691 CTASSERT(((access) & CTLTYPE) != 0); \ 692 sysctl_add_oid(ctx, parent, nbr, name, (access), \ 693 (ptr), (arg), (handler), (fmt), __DESCR(descr)); \ 694}) 695 696/* Oid to handle limits on uma(9) zone specified by pointer. */ 697#define SYSCTL_UMA_MAX(parent, nbr, name, access, ptr, descr) \ 698 SYSCTL_OID(parent, nbr, name, \ 699 CTLTYPE_INT | CTLFLAG_MPSAFE | (access), \ 700 (ptr), 0, sysctl_handle_uma_zone_max, "I", descr); \ 701 CTASSERT(((access) & CTLTYPE) == 0 || \ 702 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT) 703 704#define SYSCTL_ADD_UMA_MAX(ctx, parent, nbr, name, access, ptr, descr) \ 705({ \ 706 uma_zone_t __ptr = (ptr); \ 707 CTASSERT(((access) & CTLTYPE) == 0 || \ 708 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT); \ 709 sysctl_add_oid(ctx, parent, nbr, name, \ 710 CTLTYPE_INT | CTLFLAG_MPSAFE | (access), \ 711 __ptr, 0, sysctl_handle_uma_zone_max, "I", __DESCR(descr)); \ 712}) 713 714/* Oid to obtain current use of uma(9) zone specified by pointer. */ 715#define SYSCTL_UMA_CUR(parent, nbr, name, access, ptr, descr) \ 716 SYSCTL_OID(parent, nbr, name, \ 717 CTLTYPE_INT | CTLFLAG_MPSAFE | CTLFLAG_RD | (access), \ 718 (ptr), 0, sysctl_handle_uma_zone_cur, "I", descr); \ 719 CTASSERT(((access) & CTLTYPE) == 0 || \ 720 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT) 721 722#define SYSCTL_ADD_UMA_CUR(ctx, parent, nbr, name, access, ptr, descr) \ 723({ \ 724 uma_zone_t __ptr = (ptr); \ 725 CTASSERT(((access) & CTLTYPE) == 0 || \ 726 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT); \ 727 sysctl_add_oid(ctx, parent, nbr, name, \ 728 CTLTYPE_INT | CTLFLAG_MPSAFE | CTLFLAG_RD | (access), \ 729 __ptr, 0, sysctl_handle_uma_zone_cur, "I", __DESCR(descr)); \ 730}) 731 732/* 733 * A macro to generate a read-only sysctl to indicate the presense of optional 734 * kernel features. 735 */ 736#define FEATURE(name, desc) \ 737 SYSCTL_INT(_kern_features, OID_AUTO, name, CTLFLAG_RD | CTLFLAG_CAPRD, \ 738 SYSCTL_NULL_INT_PTR, 1, desc) 739 740#endif /* _KERNEL */ 741 742/* 743 * Top-level identifiers 744 */ 745#define CTL_UNSPEC 0 /* unused */ 746#define CTL_KERN 1 /* "high kernel": proc, limits */ 747#define CTL_VM 2 /* virtual memory */ 748#define CTL_VFS 3 /* filesystem, mount type is next */ 749#define CTL_NET 4 /* network, see socket.h */ 750#define CTL_DEBUG 5 /* debugging parameters */ 751#define CTL_HW 6 /* generic cpu/io */ 752#define CTL_MACHDEP 7 /* machine dependent */ 753#define CTL_USER 8 /* user-level */ 754#define CTL_P1003_1B 9 /* POSIX 1003.1B */ 755 756/* 757 * CTL_KERN identifiers 758 */ 759#define KERN_OSTYPE 1 /* string: system version */ 760#define KERN_OSRELEASE 2 /* string: system release */ 761#define KERN_OSREV 3 /* int: system revision */ 762#define KERN_VERSION 4 /* string: compile time info */ 763#define KERN_MAXVNODES 5 /* int: max vnodes */ 764#define KERN_MAXPROC 6 /* int: max processes */ 765#define KERN_MAXFILES 7 /* int: max open files */ 766#define KERN_ARGMAX 8 /* int: max arguments to exec */ 767#define KERN_SECURELVL 9 /* int: system security level */ 768#define KERN_HOSTNAME 10 /* string: hostname */ 769#define KERN_HOSTID 11 /* int: host identifier */ 770#define KERN_CLOCKRATE 12 /* struct: struct clockrate */ 771#define KERN_VNODE 13 /* struct: vnode structures */ 772#define KERN_PROC 14 /* struct: process entries */ 773#define KERN_FILE 15 /* struct: file entries */ 774#define KERN_PROF 16 /* node: kernel profiling info */ 775#define KERN_POSIX1 17 /* int: POSIX.1 version */ 776#define KERN_NGROUPS 18 /* int: # of supplemental group ids */ 777#define KERN_JOB_CONTROL 19 /* int: is job control available */ 778#define KERN_SAVED_IDS 20 /* int: saved set-user/group-ID */ 779#define KERN_BOOTTIME 21 /* struct: time kernel was booted */ 780#define KERN_NISDOMAINNAME 22 /* string: YP domain name */ 781#define KERN_UPDATEINTERVAL 23 /* int: update process sleep time */ 782#define KERN_OSRELDATE 24 /* int: kernel release date */ 783#define KERN_NTP_PLL 25 /* node: NTP PLL control */ 784#define KERN_BOOTFILE 26 /* string: name of booted kernel */ 785#define KERN_MAXFILESPERPROC 27 /* int: max open files per proc */ 786#define KERN_MAXPROCPERUID 28 /* int: max processes per uid */ 787#define KERN_DUMPDEV 29 /* struct cdev *: device to dump on */ 788#define KERN_IPC 30 /* node: anything related to IPC */ 789#define KERN_DUMMY 31 /* unused */ 790#define KERN_PS_STRINGS 32 /* int: address of PS_STRINGS */ 791#define KERN_USRSTACK 33 /* int: address of USRSTACK */ 792#define KERN_LOGSIGEXIT 34 /* int: do we log sigexit procs? */ 793#define KERN_IOV_MAX 35 /* int: value of UIO_MAXIOV */ 794#define KERN_HOSTUUID 36 /* string: host UUID identifier */ 795#define KERN_ARND 37 /* int: from arc4rand() */ 796/* 797 * KERN_PROC subtypes 798 */ 799#define KERN_PROC_ALL 0 /* everything */ 800#define KERN_PROC_PID 1 /* by process id */ 801#define KERN_PROC_PGRP 2 /* by process group id */ 802#define KERN_PROC_SESSION 3 /* by session of pid */ 803#define KERN_PROC_TTY 4 /* by controlling tty */ 804#define KERN_PROC_UID 5 /* by effective uid */ 805#define KERN_PROC_RUID 6 /* by real uid */ 806#define KERN_PROC_ARGS 7 /* get/set arguments/proctitle */ 807#define KERN_PROC_PROC 8 /* only return procs */ 808#define KERN_PROC_SV_NAME 9 /* get syscall vector name */ 809#define KERN_PROC_RGID 10 /* by real group id */ 810#define KERN_PROC_GID 11 /* by effective group id */ 811#define KERN_PROC_PATHNAME 12 /* path to executable */ 812#define KERN_PROC_OVMMAP 13 /* Old VM map entries for process */ 813#define KERN_PROC_OFILEDESC 14 /* Old file descriptors for process */ 814#define KERN_PROC_KSTACK 15 /* Kernel stacks for process */ 815#define KERN_PROC_INC_THREAD 0x10 /* 816 * modifier for pid, pgrp, tty, 817 * uid, ruid, gid, rgid and proc 818 * This effectively uses 16-31 819 */ 820#define KERN_PROC_VMMAP 32 /* VM map entries for process */ 821#define KERN_PROC_FILEDESC 33 /* File descriptors for process */ 822#define KERN_PROC_GROUPS 34 /* process groups */ 823#define KERN_PROC_ENV 35 /* get environment */ 824#define KERN_PROC_AUXV 36 /* get ELF auxiliary vector */ 825#define KERN_PROC_RLIMIT 37 /* process resource limits */ 826#define KERN_PROC_PS_STRINGS 38 /* get ps_strings location */ 827#define KERN_PROC_UMASK 39 /* process umask */ 828#define KERN_PROC_OSREL 40 /* osreldate for process binary */ 829#define KERN_PROC_SIGTRAMP 41 /* signal trampoline location */ 830#define KERN_PROC_CWD 42 /* process current working directory */ 831#define KERN_PROC_NFDS 43 /* number of open file descriptors */ 832 833/* 834 * KERN_IPC identifiers 835 */ 836#define KIPC_MAXSOCKBUF 1 /* int: max size of a socket buffer */ 837#define KIPC_SOCKBUF_WASTE 2 /* int: wastage factor in sockbuf */ 838#define KIPC_SOMAXCONN 3 /* int: max length of connection q */ 839#define KIPC_MAX_LINKHDR 4 /* int: max length of link header */ 840#define KIPC_MAX_PROTOHDR 5 /* int: max length of network header */ 841#define KIPC_MAX_HDR 6 /* int: max total length of headers */ 842#define KIPC_MAX_DATALEN 7 /* int: max length of data? */ 843 844/* 845 * CTL_HW identifiers 846 */ 847#define HW_MACHINE 1 /* string: machine class */ 848#define HW_MODEL 2 /* string: specific machine model */ 849#define HW_NCPU 3 /* int: number of cpus */ 850#define HW_BYTEORDER 4 /* int: machine byte order */ 851#define HW_PHYSMEM 5 /* int: total memory */ 852#define HW_USERMEM 6 /* int: non-kernel memory */ 853#define HW_PAGESIZE 7 /* int: software page size */ 854#define HW_DISKNAMES 8 /* strings: disk drive names */ 855#define HW_DISKSTATS 9 /* struct: diskstats[] */ 856#define HW_FLOATINGPT 10 /* int: has HW floating point? */ 857#define HW_MACHINE_ARCH 11 /* string: machine architecture */ 858#define HW_REALMEM 12 /* int: 'real' memory */ 859 860/* 861 * CTL_USER definitions 862 */ 863#define USER_CS_PATH 1 /* string: _CS_PATH */ 864#define USER_BC_BASE_MAX 2 /* int: BC_BASE_MAX */ 865#define USER_BC_DIM_MAX 3 /* int: BC_DIM_MAX */ 866#define USER_BC_SCALE_MAX 4 /* int: BC_SCALE_MAX */ 867#define USER_BC_STRING_MAX 5 /* int: BC_STRING_MAX */ 868#define USER_COLL_WEIGHTS_MAX 6 /* int: COLL_WEIGHTS_MAX */ 869#define USER_EXPR_NEST_MAX 7 /* int: EXPR_NEST_MAX */ 870#define USER_LINE_MAX 8 /* int: LINE_MAX */ 871#define USER_RE_DUP_MAX 9 /* int: RE_DUP_MAX */ 872#define USER_POSIX2_VERSION 10 /* int: POSIX2_VERSION */ 873#define USER_POSIX2_C_BIND 11 /* int: POSIX2_C_BIND */ 874#define USER_POSIX2_C_DEV 12 /* int: POSIX2_C_DEV */ 875#define USER_POSIX2_CHAR_TERM 13 /* int: POSIX2_CHAR_TERM */ 876#define USER_POSIX2_FORT_DEV 14 /* int: POSIX2_FORT_DEV */ 877#define USER_POSIX2_FORT_RUN 15 /* int: POSIX2_FORT_RUN */ 878#define USER_POSIX2_LOCALEDEF 16 /* int: POSIX2_LOCALEDEF */ 879#define USER_POSIX2_SW_DEV 17 /* int: POSIX2_SW_DEV */ 880#define USER_POSIX2_UPE 18 /* int: POSIX2_UPE */ 881#define USER_STREAM_MAX 19 /* int: POSIX2_STREAM_MAX */ 882#define USER_TZNAME_MAX 20 /* int: POSIX2_TZNAME_MAX */ 883 884#define CTL_P1003_1B_ASYNCHRONOUS_IO 1 /* boolean */ 885#define CTL_P1003_1B_MAPPED_FILES 2 /* boolean */ 886#define CTL_P1003_1B_MEMLOCK 3 /* boolean */ 887#define CTL_P1003_1B_MEMLOCK_RANGE 4 /* boolean */ 888#define CTL_P1003_1B_MEMORY_PROTECTION 5 /* boolean */ 889#define CTL_P1003_1B_MESSAGE_PASSING 6 /* boolean */ 890#define CTL_P1003_1B_PRIORITIZED_IO 7 /* boolean */ 891#define CTL_P1003_1B_PRIORITY_SCHEDULING 8 /* boolean */ 892#define CTL_P1003_1B_REALTIME_SIGNALS 9 /* boolean */ 893#define CTL_P1003_1B_SEMAPHORES 10 /* boolean */ 894#define CTL_P1003_1B_FSYNC 11 /* boolean */ 895#define CTL_P1003_1B_SHARED_MEMORY_OBJECTS 12 /* boolean */ 896#define CTL_P1003_1B_SYNCHRONIZED_IO 13 /* boolean */ 897#define CTL_P1003_1B_TIMERS 14 /* boolean */ 898#define CTL_P1003_1B_AIO_LISTIO_MAX 15 /* int */ 899#define CTL_P1003_1B_AIO_MAX 16 /* int */ 900#define CTL_P1003_1B_AIO_PRIO_DELTA_MAX 17 /* int */ 901#define CTL_P1003_1B_DELAYTIMER_MAX 18 /* int */ 902#define CTL_P1003_1B_MQ_OPEN_MAX 19 /* int */ 903#define CTL_P1003_1B_PAGESIZE 20 /* int */ 904#define CTL_P1003_1B_RTSIG_MAX 21 /* int */ 905#define CTL_P1003_1B_SEM_NSEMS_MAX 22 /* int */ 906#define CTL_P1003_1B_SEM_VALUE_MAX 23 /* int */ 907#define CTL_P1003_1B_SIGQUEUE_MAX 24 /* int */ 908#define CTL_P1003_1B_TIMER_MAX 25 /* int */ 909 910#define CTL_P1003_1B_MAXID 26 911 912#ifdef _KERNEL 913 914/* 915 * Declare some common oids. 916 */ 917extern struct sysctl_oid_list sysctl__children; 918SYSCTL_DECL(_kern); 919SYSCTL_DECL(_kern_features); 920SYSCTL_DECL(_kern_ipc); 921SYSCTL_DECL(_kern_proc); 922SYSCTL_DECL(_kern_sched); 923SYSCTL_DECL(_kern_sched_stats); 924SYSCTL_DECL(_sysctl); 925SYSCTL_DECL(_vm); 926SYSCTL_DECL(_vm_stats); 927SYSCTL_DECL(_vm_stats_misc); 928SYSCTL_DECL(_vfs); 929SYSCTL_DECL(_net); 930SYSCTL_DECL(_debug); 931SYSCTL_DECL(_debug_sizeof); 932SYSCTL_DECL(_dev); 933SYSCTL_DECL(_hw); 934SYSCTL_DECL(_hw_bus); 935SYSCTL_DECL(_hw_bus_devices); 936SYSCTL_DECL(_hw_bus_info); 937SYSCTL_DECL(_machdep); 938SYSCTL_DECL(_user); 939SYSCTL_DECL(_compat); 940SYSCTL_DECL(_regression); 941SYSCTL_DECL(_security); 942SYSCTL_DECL(_security_bsd); 943 944extern char machine[]; 945extern char osrelease[]; 946extern char ostype[]; 947extern char kern_ident[]; 948 949/* Dynamic oid handling */ 950struct sysctl_oid *sysctl_add_oid(struct sysctl_ctx_list *clist, 951 struct sysctl_oid_list *parent, int nbr, const char *name, int kind, 952 void *arg1, intmax_t arg2, int (*handler)(SYSCTL_HANDLER_ARGS), 953 const char *fmt, const char *descr); 954int sysctl_remove_name(struct sysctl_oid *parent, const char *name, int del, 955 int recurse); 956void sysctl_rename_oid(struct sysctl_oid *oidp, const char *name); 957int sysctl_move_oid(struct sysctl_oid *oidp, 958 struct sysctl_oid_list *parent); 959int sysctl_remove_oid(struct sysctl_oid *oidp, int del, int recurse); 960int sysctl_ctx_init(struct sysctl_ctx_list *clist); 961int sysctl_ctx_free(struct sysctl_ctx_list *clist); 962struct sysctl_ctx_entry *sysctl_ctx_entry_add(struct sysctl_ctx_list *clist, 963 struct sysctl_oid *oidp); 964struct sysctl_ctx_entry *sysctl_ctx_entry_find(struct sysctl_ctx_list *clist, 965 struct sysctl_oid *oidp); 966int sysctl_ctx_entry_del(struct sysctl_ctx_list *clist, 967 struct sysctl_oid *oidp); 968 969int kernel_sysctl(struct thread *td, int *name, u_int namelen, void *old, 970 size_t *oldlenp, void *new, size_t newlen, size_t *retval, 971 int flags); 972int kernel_sysctlbyname(struct thread *td, char *name, void *old, 973 size_t *oldlenp, void *new, size_t newlen, size_t *retval, 974 int flags); 975int userland_sysctl(struct thread *td, int *name, u_int namelen, void *old, 976 size_t *oldlenp, int inkernel, void *new, size_t newlen, 977 size_t *retval, int flags); 978int sysctl_find_oid(int *name, u_int namelen, struct sysctl_oid **noid, 979 int *nindx, struct sysctl_req *req); 980void sysctl_wlock(void); 981void sysctl_wunlock(void); 982int sysctl_wire_old_buffer(struct sysctl_req *req, size_t len); 983 984struct sbuf; 985struct sbuf *sbuf_new_for_sysctl(struct sbuf *, char *, int, 986 struct sysctl_req *); 987#else /* !_KERNEL */ 988#include <sys/cdefs.h> 989 990__BEGIN_DECLS 991int sysctl(const int *, u_int, void *, size_t *, const void *, size_t); 992int sysctlbyname(const char *, void *, size_t *, const void *, size_t); 993int sysctlnametomib(const char *, int *, size_t *); 994__END_DECLS 995#endif /* _KERNEL */ 996 997#endif /* !_SYS_SYSCTL_H_ */ 998