sysctl.h revision 101650
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 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by the University of 19 * California, Berkeley and its contributors. 20 * 4. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * @(#)sysctl.h 8.1 (Berkeley) 6/2/93 37 * $FreeBSD: head/sys/sys/sysctl.h 101650 2002-08-10 19:56:45Z mux $ 38 */ 39 40#ifndef _SYS_SYSCTL_H_ 41#define _SYS_SYSCTL_H_ 42 43#include <sys/_posix.h> 44#include <sys/queue.h> 45 46struct thread; 47/* 48 * Definitions for sysctl call. The sysctl call uses a hierarchical name 49 * for objects that can be examined or modified. The name is expressed as 50 * a sequence of integers. Like a file path name, the meaning of each 51 * component depends on its place in the hierarchy. The top-level and kern 52 * identifiers are defined here, and other identifiers are defined in the 53 * respective subsystem header files. 54 */ 55 56#define CTL_MAXNAME 12 /* largest number of components supported */ 57 58/* 59 * Each subsystem defined by sysctl defines a list of variables 60 * for that subsystem. Each name is either a node with further 61 * levels defined below it, or it is a leaf of some particular 62 * type given below. Each sysctl level defines a set of name/type 63 * pairs to be used by sysctl(1) in manipulating the subsystem. 64 */ 65struct ctlname { 66 char *ctl_name; /* subsystem name */ 67 int ctl_type; /* type of name */ 68}; 69 70#define CTLTYPE 0xf /* Mask for the type */ 71#define CTLTYPE_NODE 1 /* name is a node */ 72#define CTLTYPE_INT 2 /* name describes an integer */ 73#define CTLTYPE_STRING 3 /* name describes a string */ 74#define CTLTYPE_QUAD 4 /* name describes a 64-bit number */ 75#define CTLTYPE_OPAQUE 5 /* name describes a structure */ 76#define CTLTYPE_STRUCT CTLTYPE_OPAQUE /* name describes a structure */ 77#define CTLTYPE_UINT 6 /* name describes an unsigned integer */ 78#define CTLTYPE_LONG 7 /* name describes a long */ 79#define CTLTYPE_ULONG 8 /* name describes an unsigned long */ 80 81#define CTLFLAG_RD 0x80000000 /* Allow reads of variable */ 82#define CTLFLAG_WR 0x40000000 /* Allow writes to the variable */ 83#define CTLFLAG_RW (CTLFLAG_RD|CTLFLAG_WR) 84#define CTLFLAG_NOLOCK 0x20000000 /* XXX Don't Lock */ 85#define CTLFLAG_ANYBODY 0x10000000 /* All users can set this var */ 86#define CTLFLAG_SECURE 0x08000000 /* Permit set only if securelevel<=0 */ 87#define CTLFLAG_PRISON 0x04000000 /* Prisoned roots can fiddle */ 88#define CTLFLAG_DYN 0x02000000 /* Dynamic oid - can be freed */ 89#define CTLFLAG_SKIP 0x01000000 /* Skip this sysctl when listing */ 90 91/* 92 * USE THIS instead of a hardwired number from the categories below 93 * to get dynamically assigned sysctl entries using the linker-set 94 * technology. This is the way nearly all new sysctl variables should 95 * be implemented. 96 * e.g. SYSCTL_INT(_parent, OID_AUTO, name, CTLFLAG_RW, &variable, 0, ""); 97 */ 98#define OID_AUTO (-1) 99 100/* 101 * The starting number for dynamically-assigned entries. WARNING! 102 * ALL static sysctl entries should have numbers LESS than this! 103 */ 104#define CTL_AUTO_START 0x100 105 106#ifdef _KERNEL 107#define SYSCTL_HANDLER_ARGS struct sysctl_oid *oidp, void *arg1, int arg2, \ 108 struct sysctl_req *req 109 110/* 111 * This describes the access space for a sysctl request. This is needed 112 * so that we can use the interface from the kernel or from user-space. 113 */ 114struct sysctl_req { 115 struct thread *td; /* used for access checking */ 116 int lock; 117 void *oldptr; 118 size_t oldlen; 119 size_t oldidx; 120 int (*oldfunc)(struct sysctl_req *, const void *, size_t); 121 void *newptr; 122 size_t newlen; 123 size_t newidx; 124 int (*newfunc)(struct sysctl_req *, void *, size_t); 125}; 126 127SLIST_HEAD(sysctl_oid_list, sysctl_oid); 128 129/* 130 * This describes one "oid" in the MIB tree. Potentially more nodes can 131 * be hidden behind it, expanded by the handler. 132 */ 133struct sysctl_oid { 134 struct sysctl_oid_list *oid_parent; 135 SLIST_ENTRY(sysctl_oid) oid_link; 136 int oid_number; 137 u_int oid_kind; 138 void *oid_arg1; 139 int oid_arg2; 140 const char *oid_name; 141 int (*oid_handler)(SYSCTL_HANDLER_ARGS); 142 const char *oid_fmt; 143 int oid_refcnt; 144 const char *descr; 145}; 146 147#define SYSCTL_IN(r, p, l) (r->newfunc)(r, p, l) 148#define SYSCTL_OUT(r, p, l) (r->oldfunc)(r, p, l) 149 150int sysctl_handle_int(SYSCTL_HANDLER_ARGS); 151int sysctl_handle_long(SYSCTL_HANDLER_ARGS); 152int sysctl_handle_intptr(SYSCTL_HANDLER_ARGS); 153int sysctl_handle_string(SYSCTL_HANDLER_ARGS); 154int sysctl_handle_opaque(SYSCTL_HANDLER_ARGS); 155 156/* 157 * These functions are used to add/remove an oid from the mib. 158 */ 159void sysctl_register_oid(struct sysctl_oid *oidp); 160void sysctl_unregister_oid(struct sysctl_oid *oidp); 161 162/* Declare a static oid to allow child oids to be added to it. */ 163#define SYSCTL_DECL(name) \ 164 extern struct sysctl_oid_list sysctl_##name##_children 165 166/* Hide these in macros */ 167#define SYSCTL_CHILDREN(oid_ptr) (struct sysctl_oid_list *) \ 168 (oid_ptr)->oid_arg1 169#define SYSCTL_STATIC_CHILDREN(oid_name) \ 170 (&sysctl_##oid_name##_children) 171 172/* === Structs and macros related to context handling === */ 173 174/* All dynamically created sysctls can be tracked in a context list. */ 175struct sysctl_ctx_entry { 176 struct sysctl_oid *entry; 177 TAILQ_ENTRY(sysctl_ctx_entry) link; 178}; 179 180TAILQ_HEAD(sysctl_ctx_list, sysctl_ctx_entry); 181 182/* This constructs a "raw" MIB oid. */ 183#define SYSCTL_OID(parent, nbr, name, kind, a1, a2, handler, fmt, descr) \ 184 static struct sysctl_oid sysctl__##parent##_##name = { \ 185 &sysctl_##parent##_children, { 0 }, \ 186 nbr, kind, a1, a2, #name, handler, fmt, 0, descr }; \ 187 DATA_SET(sysctl_set, sysctl__##parent##_##name) 188 189#define SYSCTL_ADD_OID(ctx, parent, nbr, name, kind, a1, a2, handler, fmt, descr) \ 190 sysctl_add_oid(ctx, parent, nbr, name, kind, a1, a2, handler, fmt, descr) 191 192/* This constructs a node from which other oids can hang. */ 193#define SYSCTL_NODE(parent, nbr, name, access, handler, descr) \ 194 struct sysctl_oid_list sysctl_##parent##_##name##_children; \ 195 SYSCTL_OID(parent, nbr, name, CTLTYPE_NODE|access, \ 196 (void*)&sysctl_##parent##_##name##_children, 0, handler, \ 197 "N", descr) 198 199#define SYSCTL_ADD_NODE(ctx, parent, nbr, name, access, handler, descr) \ 200 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_NODE|access, \ 201 0, 0, handler, "N", descr) 202 203/* Oid for a string. len can be 0 to indicate '\0' termination. */ 204#define SYSCTL_STRING(parent, nbr, name, access, arg, len, descr) \ 205 SYSCTL_OID(parent, nbr, name, CTLTYPE_STRING|access, \ 206 arg, len, sysctl_handle_string, "A", descr) 207 208#define SYSCTL_ADD_STRING(ctx, parent, nbr, name, access, arg, len, descr) \ 209 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_STRING|access, \ 210 arg, len, sysctl_handle_string, "A", descr) 211 212/* Oid for an int. If ptr is NULL, val is returned. */ 213#define SYSCTL_INT(parent, nbr, name, access, ptr, val, descr) \ 214 SYSCTL_OID(parent, nbr, name, CTLTYPE_INT|access, \ 215 ptr, val, sysctl_handle_int, "I", descr) 216 217#define SYSCTL_ADD_INT(ctx, parent, nbr, name, access, ptr, val, descr) \ 218 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_INT|access, \ 219 ptr, val, sysctl_handle_int, "I", descr) 220 221/* Oid for an unsigned int. If ptr is NULL, val is returned. */ 222#define SYSCTL_UINT(parent, nbr, name, access, ptr, val, descr) \ 223 SYSCTL_OID(parent, nbr, name, CTLTYPE_UINT|access, \ 224 ptr, val, sysctl_handle_int, "IU", descr) 225 226#define SYSCTL_ADD_UINT(ctx, parent, nbr, name, access, ptr, val, descr) \ 227 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_UINT|access, \ 228 ptr, val, sysctl_handle_int, "IU", descr) 229 230/* Oid for a long. The pointer must be non NULL. */ 231#define SYSCTL_LONG(parent, nbr, name, access, ptr, val, descr) \ 232 SYSCTL_OID(parent, nbr, name, CTLTYPE_LONG|access, \ 233 ptr, val, sysctl_handle_long, "L", descr) 234 235#define SYSCTL_ADD_LONG(ctx, parent, nbr, name, access, ptr, descr) \ 236 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_LONG|access, \ 237 ptr, 0, sysctl_handle_long, "L", descr) 238 239/* Oid for a long. The pointer must be non NULL. */ 240#define SYSCTL_ULONG(parent, nbr, name, access, ptr, val, descr) \ 241 SYSCTL_OID(parent, nbr, name, CTLTYPE_ULONG|access, \ 242 ptr, val, sysctl_handle_long, "LU", descr) 243 244#define SYSCTL_ADD_ULONG(ctx, parent, nbr, name, access, ptr, descr) \ 245 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_ULONG|access, \ 246 ptr, 0, sysctl_handle_long, "LU", descr) 247 248/* Oid for an opaque object. Specified by a pointer and a length. */ 249#define SYSCTL_OPAQUE(parent, nbr, name, access, ptr, len, fmt, descr) \ 250 SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|access, \ 251 ptr, len, sysctl_handle_opaque, fmt, descr) 252 253#define SYSCTL_ADD_OPAQUE(ctx, parent, nbr, name, access, ptr, len, fmt, descr)\ 254 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_OPAQUE|access, \ 255 ptr, len, sysctl_handle_opaque, fmt, descr) 256 257/* Oid for a struct. Specified by a pointer and a type. */ 258#define SYSCTL_STRUCT(parent, nbr, name, access, ptr, type, descr) \ 259 SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|access, \ 260 ptr, sizeof(struct type), sysctl_handle_opaque, \ 261 "S," #type, descr) 262 263#define SYSCTL_ADD_STRUCT(ctx, parent, nbr, name, access, ptr, type, descr) \ 264 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_OPAQUE|access, \ 265 ptr, sizeof(struct type), sysctl_handle_opaque, "S," #type, descr) 266 267/* Oid for a procedure. Specified by a pointer and an arg. */ 268#define SYSCTL_PROC(parent, nbr, name, access, ptr, arg, handler, fmt, descr) \ 269 SYSCTL_OID(parent, nbr, name, access, \ 270 ptr, arg, handler, fmt, descr) 271 272#define SYSCTL_ADD_PROC(ctx, parent, nbr, name, access, ptr, arg, handler, fmt, descr) \ 273 sysctl_add_oid(ctx, parent, nbr, name, access, \ 274 ptr, arg, handler, fmt, descr) 275 276#endif /* _KERNEL */ 277 278/* 279 * Top-level identifiers 280 */ 281#define CTL_UNSPEC 0 /* unused */ 282#define CTL_KERN 1 /* "high kernel": proc, limits */ 283#define CTL_VM 2 /* virtual memory */ 284#define CTL_VFS 3 /* filesystem, mount type is next */ 285#define CTL_NET 4 /* network, see socket.h */ 286#define CTL_DEBUG 5 /* debugging parameters */ 287#define CTL_HW 6 /* generic cpu/io */ 288#define CTL_MACHDEP 7 /* machine dependent */ 289#define CTL_USER 8 /* user-level */ 290#define CTL_P1003_1B 9 /* POSIX 1003.1B */ 291#define CTL_MAXID 10 /* number of valid top-level ids */ 292 293#define CTL_NAMES { \ 294 { 0, 0 }, \ 295 { "kern", CTLTYPE_NODE }, \ 296 { "vm", CTLTYPE_NODE }, \ 297 { "vfs", CTLTYPE_NODE }, \ 298 { "net", CTLTYPE_NODE }, \ 299 { "debug", CTLTYPE_NODE }, \ 300 { "hw", CTLTYPE_NODE }, \ 301 { "machdep", CTLTYPE_NODE }, \ 302 { "user", CTLTYPE_NODE }, \ 303 { "p1003_1b", CTLTYPE_NODE }, \ 304} 305 306/* 307 * CTL_KERN identifiers 308 */ 309#define KERN_OSTYPE 1 /* string: system version */ 310#define KERN_OSRELEASE 2 /* string: system release */ 311#define KERN_OSREV 3 /* int: system revision */ 312#define KERN_VERSION 4 /* string: compile time info */ 313#define KERN_MAXVNODES 5 /* int: max vnodes */ 314#define KERN_MAXPROC 6 /* int: max processes */ 315#define KERN_MAXFILES 7 /* int: max open files */ 316#define KERN_ARGMAX 8 /* int: max arguments to exec */ 317#define KERN_SECURELVL 9 /* int: system security level */ 318#define KERN_HOSTNAME 10 /* string: hostname */ 319#define KERN_HOSTID 11 /* int: host identifier */ 320#define KERN_CLOCKRATE 12 /* struct: struct clockrate */ 321#define KERN_VNODE 13 /* struct: vnode structures */ 322#define KERN_PROC 14 /* struct: process entries */ 323#define KERN_FILE 15 /* struct: file entries */ 324#define KERN_PROF 16 /* node: kernel profiling info */ 325#define KERN_POSIX1 17 /* int: POSIX.1 version */ 326#define KERN_NGROUPS 18 /* int: # of supplemental group ids */ 327#define KERN_JOB_CONTROL 19 /* int: is job control available */ 328#define KERN_SAVED_IDS 20 /* int: saved set-user/group-ID */ 329#define KERN_BOOTTIME 21 /* struct: time kernel was booted */ 330#define KERN_NISDOMAINNAME 22 /* string: YP domain name */ 331#define KERN_UPDATEINTERVAL 23 /* int: update process sleep time */ 332#define KERN_OSRELDATE 24 /* int: OS release date */ 333#define KERN_NTP_PLL 25 /* node: NTP PLL control */ 334#define KERN_BOOTFILE 26 /* string: name of booted kernel */ 335#define KERN_MAXFILESPERPROC 27 /* int: max open files per proc */ 336#define KERN_MAXPROCPERUID 28 /* int: max processes per uid */ 337#define KERN_DUMPDEV 29 /* dev_t: device to dump on */ 338#define KERN_IPC 30 /* node: anything related to IPC */ 339#define KERN_DUMMY 31 /* unused */ 340#define KERN_PS_STRINGS 32 /* int: address of PS_STRINGS */ 341#define KERN_USRSTACK 33 /* int: address of USRSTACK */ 342#define KERN_LOGSIGEXIT 34 /* int: do we log sigexit procs? */ 343#define KERN_IOV_MAX 35 /* int: value of UIO_MAXIOV */ 344#define KERN_MAXID 36 /* number of valid kern ids */ 345 346#define CTL_KERN_NAMES { \ 347 { 0, 0 }, \ 348 { "ostype", CTLTYPE_STRING }, \ 349 { "osrelease", CTLTYPE_STRING }, \ 350 { "osrevision", CTLTYPE_INT }, \ 351 { "version", CTLTYPE_STRING }, \ 352 { "maxvnodes", CTLTYPE_INT }, \ 353 { "maxproc", CTLTYPE_INT }, \ 354 { "maxfiles", CTLTYPE_INT }, \ 355 { "argmax", CTLTYPE_INT }, \ 356 { "securelevel", CTLTYPE_INT }, \ 357 { "hostname", CTLTYPE_STRING }, \ 358 { "hostid", CTLTYPE_UINT }, \ 359 { "clockrate", CTLTYPE_STRUCT }, \ 360 { "vnode", CTLTYPE_STRUCT }, \ 361 { "proc", CTLTYPE_STRUCT }, \ 362 { "file", CTLTYPE_STRUCT }, \ 363 { "profiling", CTLTYPE_NODE }, \ 364 { "posix1version", CTLTYPE_INT }, \ 365 { "ngroups", CTLTYPE_INT }, \ 366 { "job_control", CTLTYPE_INT }, \ 367 { "saved_ids", CTLTYPE_INT }, \ 368 { "boottime", CTLTYPE_STRUCT }, \ 369 { "nisdomainname", CTLTYPE_STRING }, \ 370 { "update", CTLTYPE_INT }, \ 371 { "osreldate", CTLTYPE_INT }, \ 372 { "ntp_pll", CTLTYPE_NODE }, \ 373 { "bootfile", CTLTYPE_STRING }, \ 374 { "maxfilesperproc", CTLTYPE_INT }, \ 375 { "maxprocperuid", CTLTYPE_INT }, \ 376 { "ipc", CTLTYPE_NODE }, \ 377 { "dummy", CTLTYPE_INT }, \ 378 { "ps_strings", CTLTYPE_INT }, \ 379 { "usrstack", CTLTYPE_INT }, \ 380 { "logsigexit", CTLTYPE_INT }, \ 381 { "iov_max", CTLTYPE_INT }, \ 382} 383 384/* 385 * CTL_VFS identifiers 386 */ 387#define CTL_VFS_NAMES { \ 388 { "vfsconf", CTLTYPE_STRUCT }, \ 389} 390 391/* 392 * KERN_PROC subtypes 393 */ 394#define KERN_PROC_ALL 0 /* everything */ 395#define KERN_PROC_PID 1 /* by process id */ 396#define KERN_PROC_PGRP 2 /* by process group id */ 397#define KERN_PROC_SESSION 3 /* by session of pid */ 398#define KERN_PROC_TTY 4 /* by controlling tty */ 399#define KERN_PROC_UID 5 /* by effective uid */ 400#define KERN_PROC_RUID 6 /* by real uid */ 401#define KERN_PROC_ARGS 7 /* get/set arguments/proctitle */ 402 403/* 404 * KERN_IPC identifiers 405 */ 406#define KIPC_MAXSOCKBUF 1 /* int: max size of a socket buffer */ 407#define KIPC_SOCKBUF_WASTE 2 /* int: wastage factor in sockbuf */ 408#define KIPC_SOMAXCONN 3 /* int: max length of connection q */ 409#define KIPC_MAX_LINKHDR 4 /* int: max length of link header */ 410#define KIPC_MAX_PROTOHDR 5 /* int: max length of network header */ 411#define KIPC_MAX_HDR 6 /* int: max total length of headers */ 412#define KIPC_MAX_DATALEN 7 /* int: max length of data? */ 413 414/* 415 * CTL_HW identifiers 416 */ 417#define HW_MACHINE 1 /* string: machine class */ 418#define HW_MODEL 2 /* string: specific machine model */ 419#define HW_NCPU 3 /* int: number of cpus */ 420#define HW_BYTEORDER 4 /* int: machine byte order */ 421#define HW_PHYSMEM 5 /* int: total memory */ 422#define HW_USERMEM 6 /* int: non-kernel memory */ 423#define HW_PAGESIZE 7 /* int: software page size */ 424#define HW_DISKNAMES 8 /* strings: disk drive names */ 425#define HW_DISKSTATS 9 /* struct: diskstats[] */ 426#define HW_FLOATINGPT 10 /* int: has HW floating point? */ 427#define HW_MACHINE_ARCH 11 /* string: machine architecture */ 428#define HW_MAXID 12 /* number of valid hw ids */ 429 430#define CTL_HW_NAMES { \ 431 { 0, 0 }, \ 432 { "machine", CTLTYPE_STRING }, \ 433 { "model", CTLTYPE_STRING }, \ 434 { "ncpu", CTLTYPE_INT }, \ 435 { "byteorder", CTLTYPE_INT }, \ 436 { "physmem", CTLTYPE_ULONG }, \ 437 { "usermem", CTLTYPE_ULONG }, \ 438 { "pagesize", CTLTYPE_INT }, \ 439 { "disknames", CTLTYPE_STRUCT }, \ 440 { "diskstats", CTLTYPE_STRUCT }, \ 441 { "floatingpoint", CTLTYPE_INT }, \ 442} 443 444/* 445 * CTL_USER definitions 446 */ 447#define USER_CS_PATH 1 /* string: _CS_PATH */ 448#define USER_BC_BASE_MAX 2 /* int: BC_BASE_MAX */ 449#define USER_BC_DIM_MAX 3 /* int: BC_DIM_MAX */ 450#define USER_BC_SCALE_MAX 4 /* int: BC_SCALE_MAX */ 451#define USER_BC_STRING_MAX 5 /* int: BC_STRING_MAX */ 452#define USER_COLL_WEIGHTS_MAX 6 /* int: COLL_WEIGHTS_MAX */ 453#define USER_EXPR_NEST_MAX 7 /* int: EXPR_NEST_MAX */ 454#define USER_LINE_MAX 8 /* int: LINE_MAX */ 455#define USER_RE_DUP_MAX 9 /* int: RE_DUP_MAX */ 456#define USER_POSIX2_VERSION 10 /* int: POSIX2_VERSION */ 457#define USER_POSIX2_C_BIND 11 /* int: POSIX2_C_BIND */ 458#define USER_POSIX2_C_DEV 12 /* int: POSIX2_C_DEV */ 459#define USER_POSIX2_CHAR_TERM 13 /* int: POSIX2_CHAR_TERM */ 460#define USER_POSIX2_FORT_DEV 14 /* int: POSIX2_FORT_DEV */ 461#define USER_POSIX2_FORT_RUN 15 /* int: POSIX2_FORT_RUN */ 462#define USER_POSIX2_LOCALEDEF 16 /* int: POSIX2_LOCALEDEF */ 463#define USER_POSIX2_SW_DEV 17 /* int: POSIX2_SW_DEV */ 464#define USER_POSIX2_UPE 18 /* int: POSIX2_UPE */ 465#define USER_STREAM_MAX 19 /* int: POSIX2_STREAM_MAX */ 466#define USER_TZNAME_MAX 20 /* int: POSIX2_TZNAME_MAX */ 467#define USER_MAXID 21 /* number of valid user ids */ 468 469#define CTL_USER_NAMES { \ 470 { 0, 0 }, \ 471 { "cs_path", CTLTYPE_STRING }, \ 472 { "bc_base_max", CTLTYPE_INT }, \ 473 { "bc_dim_max", CTLTYPE_INT }, \ 474 { "bc_scale_max", CTLTYPE_INT }, \ 475 { "bc_string_max", CTLTYPE_INT }, \ 476 { "coll_weights_max", CTLTYPE_INT }, \ 477 { "expr_nest_max", CTLTYPE_INT }, \ 478 { "line_max", CTLTYPE_INT }, \ 479 { "re_dup_max", CTLTYPE_INT }, \ 480 { "posix2_version", CTLTYPE_INT }, \ 481 { "posix2_c_bind", CTLTYPE_INT }, \ 482 { "posix2_c_dev", CTLTYPE_INT }, \ 483 { "posix2_char_term", CTLTYPE_INT }, \ 484 { "posix2_fort_dev", CTLTYPE_INT }, \ 485 { "posix2_fort_run", CTLTYPE_INT }, \ 486 { "posix2_localedef", CTLTYPE_INT }, \ 487 { "posix2_sw_dev", CTLTYPE_INT }, \ 488 { "posix2_upe", CTLTYPE_INT }, \ 489 { "stream_max", CTLTYPE_INT }, \ 490 { "tzname_max", CTLTYPE_INT }, \ 491} 492 493#define CTL_P1003_1B_ASYNCHRONOUS_IO 1 /* boolean */ 494#define CTL_P1003_1B_MAPPED_FILES 2 /* boolean */ 495#define CTL_P1003_1B_MEMLOCK 3 /* boolean */ 496#define CTL_P1003_1B_MEMLOCK_RANGE 4 /* boolean */ 497#define CTL_P1003_1B_MEMORY_PROTECTION 5 /* boolean */ 498#define CTL_P1003_1B_MESSAGE_PASSING 6 /* boolean */ 499#define CTL_P1003_1B_PRIORITIZED_IO 7 /* boolean */ 500#define CTL_P1003_1B_PRIORITY_SCHEDULING 8 /* boolean */ 501#define CTL_P1003_1B_REALTIME_SIGNALS 9 /* boolean */ 502#define CTL_P1003_1B_SEMAPHORES 10 /* boolean */ 503#define CTL_P1003_1B_FSYNC 11 /* boolean */ 504#define CTL_P1003_1B_SHARED_MEMORY_OBJECTS 12 /* boolean */ 505#define CTL_P1003_1B_SYNCHRONIZED_IO 13 /* boolean */ 506#define CTL_P1003_1B_TIMERS 14 /* boolean */ 507#define CTL_P1003_1B_AIO_LISTIO_MAX 15 /* int */ 508#define CTL_P1003_1B_AIO_MAX 16 /* int */ 509#define CTL_P1003_1B_AIO_PRIO_DELTA_MAX 17 /* int */ 510#define CTL_P1003_1B_DELAYTIMER_MAX 18 /* int */ 511#define CTL_P1003_1B_MQ_OPEN_MAX 19 /* int */ 512#define CTL_P1003_1B_PAGESIZE 20 /* int */ 513#define CTL_P1003_1B_RTSIG_MAX 21 /* int */ 514#define CTL_P1003_1B_SEM_NSEMS_MAX 22 /* int */ 515#define CTL_P1003_1B_SEM_VALUE_MAX 23 /* int */ 516#define CTL_P1003_1B_SIGQUEUE_MAX 24 /* int */ 517#define CTL_P1003_1B_TIMER_MAX 25 /* int */ 518 519#define CTL_P1003_1B_MAXID 26 520 521#define CTL_P1003_1B_NAMES { \ 522 { 0, 0 }, \ 523 { "asynchronous_io", CTLTYPE_INT }, \ 524 { "mapped_files", CTLTYPE_INT }, \ 525 { "memlock", CTLTYPE_INT }, \ 526 { "memlock_range", CTLTYPE_INT }, \ 527 { "memory_protection", CTLTYPE_INT }, \ 528 { "message_passing", CTLTYPE_INT }, \ 529 { "prioritized_io", CTLTYPE_INT }, \ 530 { "priority_scheduling", CTLTYPE_INT }, \ 531 { "realtime_signals", CTLTYPE_INT }, \ 532 { "semaphores", CTLTYPE_INT }, \ 533 { "fsync", CTLTYPE_INT }, \ 534 { "shared_memory_objects", CTLTYPE_INT }, \ 535 { "synchronized_io", CTLTYPE_INT }, \ 536 { "timers", CTLTYPE_INT }, \ 537 { "aio_listio_max", CTLTYPE_INT }, \ 538 { "aio_max", CTLTYPE_INT }, \ 539 { "aio_prio_delta_max", CTLTYPE_INT }, \ 540 { "delaytimer_max", CTLTYPE_INT }, \ 541 { "mq_open_max", CTLTYPE_INT }, \ 542 { "pagesize", CTLTYPE_INT }, \ 543 { "rtsig_max", CTLTYPE_INT }, \ 544 { "nsems_max", CTLTYPE_INT }, \ 545 { "sem_value_max", CTLTYPE_INT }, \ 546 { "sigqueue_max", CTLTYPE_INT }, \ 547 { "timer_max", CTLTYPE_INT }, \ 548} 549 550#ifdef _KERNEL 551 552/* 553 * Declare some common oids. 554 */ 555extern struct sysctl_oid_list sysctl__children; 556SYSCTL_DECL(_kern); 557SYSCTL_DECL(_sysctl); 558SYSCTL_DECL(_vm); 559SYSCTL_DECL(_vfs); 560SYSCTL_DECL(_net); 561SYSCTL_DECL(_debug); 562SYSCTL_DECL(_debug_sizeof); 563SYSCTL_DECL(_hw); 564SYSCTL_DECL(_machdep); 565SYSCTL_DECL(_user); 566SYSCTL_DECL(_compat); 567 568extern char machine[]; 569extern char osrelease[]; 570extern char ostype[]; 571 572/* Dynamic oid handling */ 573struct sysctl_oid *sysctl_add_oid(struct sysctl_ctx_list *clist, 574 struct sysctl_oid_list *parent, int nbr, const char *name, 575 int kind, void *arg1, int arg2, 576 int (*handler) (SYSCTL_HANDLER_ARGS), 577 const char *fmt, const char *descr); 578int sysctl_remove_oid(struct sysctl_oid *oidp, int del, int recurse); 579int sysctl_ctx_init(struct sysctl_ctx_list *clist); 580int sysctl_ctx_free(struct sysctl_ctx_list *clist); 581struct sysctl_ctx_entry *sysctl_ctx_entry_add(struct sysctl_ctx_list *clist, 582 struct sysctl_oid *oidp); 583struct sysctl_ctx_entry *sysctl_ctx_entry_find(struct sysctl_ctx_list *clist, 584 struct sysctl_oid *oidp); 585int sysctl_ctx_entry_del(struct sysctl_ctx_list *clist, 586 struct sysctl_oid *oidp); 587 588int kernel_sysctl(struct thread *td, int *name, u_int namelen, void *old, 589 size_t *oldlenp, void *new, size_t newlen, 590 size_t *retval); 591int kernel_sysctlbyname(struct thread *td, char *name, 592 void *old, size_t *oldlenp, void *new, size_t newlen, 593 size_t *retval); 594int userland_sysctl(struct thread *td, int *name, u_int namelen, void *old, 595 size_t *oldlenp, int inkernel, void *new, size_t newlen, 596 size_t *retval); 597int sysctl_find_oid(int *name, u_int namelen, struct sysctl_oid **noid, 598 int *nindx, struct sysctl_req *req); 599void sysctl_wire_old_buffer(struct sysctl_req *req, size_t len); 600 601#else /* !_KERNEL */ 602#include <sys/cdefs.h> 603 604__BEGIN_DECLS 605int sysctl(int *, u_int, void *, size_t *, void *, size_t); 606int sysctlbyname(const char *, void *, size_t *, void *, size_t); 607int sysctlnametomib(const char *, int *, size_t *); 608__END_DECLS 609#endif /* _KERNEL */ 610 611#endif /* !_SYS_SYSCTL_H_ */ 612