sysctl.h revision 112744
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 112744 2003-03-28 14:17:17Z robert $ 38 */ 39 40#ifndef _SYS_SYSCTL_H_ 41#define _SYS_SYSCTL_H_ 42 43#include <sys/queue.h> 44 45struct thread; 46/* 47 * Definitions for sysctl call. The sysctl call uses a hierarchical name 48 * for objects that can be examined or modified. The name is expressed as 49 * a sequence of integers. Like a file path name, the meaning of each 50 * component depends on its place in the hierarchy. The top-level and kern 51 * identifiers are defined here, and other identifiers are defined in the 52 * respective subsystem header files. 53 */ 54 55#define CTL_MAXNAME 12 /* largest number of components supported */ 56 57/* 58 * Each subsystem defined by sysctl defines a list of variables 59 * for that subsystem. Each name is either a node with further 60 * levels defined below it, or it is a leaf of some particular 61 * type given below. Each sysctl level defines a set of name/type 62 * pairs to be used by sysctl(1) in manipulating the subsystem. 63 */ 64struct ctlname { 65 char *ctl_name; /* subsystem name */ 66 int ctl_type; /* type of name */ 67}; 68 69#define CTLTYPE 0xf /* Mask for the type */ 70#define CTLTYPE_NODE 1 /* name is a node */ 71#define CTLTYPE_INT 2 /* name describes an integer */ 72#define CTLTYPE_STRING 3 /* name describes a string */ 73#define CTLTYPE_QUAD 4 /* name describes a 64-bit number */ 74#define CTLTYPE_OPAQUE 5 /* name describes a structure */ 75#define CTLTYPE_STRUCT CTLTYPE_OPAQUE /* name describes a structure */ 76#define CTLTYPE_UINT 6 /* name describes an unsigned integer */ 77#define CTLTYPE_LONG 7 /* name describes a long */ 78#define CTLTYPE_ULONG 8 /* name describes an unsigned long */ 79 80#define CTLFLAG_RD 0x80000000 /* Allow reads of variable */ 81#define CTLFLAG_WR 0x40000000 /* Allow writes to the variable */ 82#define CTLFLAG_RW (CTLFLAG_RD|CTLFLAG_WR) 83#define CTLFLAG_NOLOCK 0x20000000 /* XXX Don't Lock */ 84#define CTLFLAG_ANYBODY 0x10000000 /* All users can set this var */ 85#define CTLFLAG_SECURE 0x08000000 /* Permit set only if securelevel<=0 */ 86#define CTLFLAG_PRISON 0x04000000 /* Prisoned roots can fiddle */ 87#define CTLFLAG_DYN 0x02000000 /* Dynamic oid - can be freed */ 88#define CTLFLAG_SKIP 0x01000000 /* Skip this sysctl when listing */ 89#define CTLMASK_SECURE 0x00F00000 /* Secure level */ 90 91/* 92 * Secure level. Note that CTLFLAG_SECURE == CTLFLAG_SECURE1. 93 * 94 * Secure when the securelevel is raised to at least N. 95 */ 96#define CTLSHIFT_SECURE 20 97#define CTLFLAG_SECURE1 (CTLFLAG_SECURE | (0 << CTLSHIFT_SECURE)) 98#define CTLFLAG_SECURE2 (CTLFLAG_SECURE | (1 << CTLSHIFT_SECURE)) 99#define CTLFLAG_SECURE3 (CTLFLAG_SECURE | (2 << CTLSHIFT_SECURE)) 100 101/* 102 * USE THIS instead of a hardwired number from the categories below 103 * to get dynamically assigned sysctl entries using the linker-set 104 * technology. This is the way nearly all new sysctl variables should 105 * be implemented. 106 * e.g. SYSCTL_INT(_parent, OID_AUTO, name, CTLFLAG_RW, &variable, 0, ""); 107 */ 108#define OID_AUTO (-1) 109 110/* 111 * The starting number for dynamically-assigned entries. WARNING! 112 * ALL static sysctl entries should have numbers LESS than this! 113 */ 114#define CTL_AUTO_START 0x100 115 116#ifdef _KERNEL 117#define SYSCTL_HANDLER_ARGS struct sysctl_oid *oidp, void *arg1, int arg2, \ 118 struct sysctl_req *req 119 120/* 121 * This describes the access space for a sysctl request. This is needed 122 * so that we can use the interface from the kernel or from user-space. 123 */ 124struct sysctl_req { 125 struct thread *td; /* used for access checking */ 126 int lock; 127 void *oldptr; 128 size_t oldlen; 129 size_t oldidx; 130 int (*oldfunc)(struct sysctl_req *, const void *, size_t); 131 void *newptr; 132 size_t newlen; 133 size_t newidx; 134 int (*newfunc)(struct sysctl_req *, void *, size_t); 135}; 136 137SLIST_HEAD(sysctl_oid_list, sysctl_oid); 138 139/* 140 * This describes one "oid" in the MIB tree. Potentially more nodes can 141 * be hidden behind it, expanded by the handler. 142 */ 143struct sysctl_oid { 144 struct sysctl_oid_list *oid_parent; 145 SLIST_ENTRY(sysctl_oid) oid_link; 146 int oid_number; 147 u_int oid_kind; 148 void *oid_arg1; 149 int oid_arg2; 150 const char *oid_name; 151 int (*oid_handler)(SYSCTL_HANDLER_ARGS); 152 const char *oid_fmt; 153 int oid_refcnt; 154 const char *descr; 155}; 156 157#define SYSCTL_IN(r, p, l) (r->newfunc)(r, p, l) 158#define SYSCTL_OUT(r, p, l) (r->oldfunc)(r, p, l) 159 160int sysctl_handle_int(SYSCTL_HANDLER_ARGS); 161int sysctl_handle_long(SYSCTL_HANDLER_ARGS); 162int sysctl_handle_intptr(SYSCTL_HANDLER_ARGS); 163int sysctl_handle_string(SYSCTL_HANDLER_ARGS); 164int sysctl_handle_opaque(SYSCTL_HANDLER_ARGS); 165 166/* 167 * These functions are used to add/remove an oid from the mib. 168 */ 169void sysctl_register_oid(struct sysctl_oid *oidp); 170void sysctl_unregister_oid(struct sysctl_oid *oidp); 171 172/* Declare a static oid to allow child oids to be added to it. */ 173#define SYSCTL_DECL(name) \ 174 extern struct sysctl_oid_list sysctl_##name##_children 175 176/* Hide these in macros */ 177#define SYSCTL_CHILDREN(oid_ptr) (struct sysctl_oid_list *) \ 178 (oid_ptr)->oid_arg1 179#define SYSCTL_STATIC_CHILDREN(oid_name) \ 180 (&sysctl_##oid_name##_children) 181 182/* === Structs and macros related to context handling === */ 183 184/* All dynamically created sysctls can be tracked in a context list. */ 185struct sysctl_ctx_entry { 186 struct sysctl_oid *entry; 187 TAILQ_ENTRY(sysctl_ctx_entry) link; 188}; 189 190TAILQ_HEAD(sysctl_ctx_list, sysctl_ctx_entry); 191 192#define SYSCTL_NODE_CHILDREN(parent, name) \ 193 sysctl_##parent##_##name##_children 194 195/* This constructs a "raw" MIB oid. */ 196#define SYSCTL_OID(parent, nbr, name, kind, a1, a2, handler, fmt, descr) \ 197 static struct sysctl_oid sysctl__##parent##_##name = { \ 198 &sysctl_##parent##_children, { 0 }, \ 199 nbr, kind, a1, a2, #name, handler, fmt, 0, descr }; \ 200 DATA_SET(sysctl_set, sysctl__##parent##_##name) 201 202#define SYSCTL_ADD_OID(ctx, parent, nbr, name, kind, a1, a2, handler, fmt, descr) \ 203 sysctl_add_oid(ctx, parent, nbr, name, kind, a1, a2, handler, fmt, descr) 204 205/* This constructs a node from which other oids can hang. */ 206#define SYSCTL_NODE(parent, nbr, name, access, handler, descr) \ 207 struct sysctl_oid_list SYSCTL_NODE_CHILDREN(parent, name); \ 208 SYSCTL_OID(parent, nbr, name, CTLTYPE_NODE|(access), \ 209 (void*)&SYSCTL_NODE_CHILDREN(parent, name), 0, handler, \ 210 "N", descr) 211 212#define SYSCTL_ADD_NODE(ctx, parent, nbr, name, access, handler, descr) \ 213 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_NODE|(access), \ 214 0, 0, handler, "N", descr) 215 216/* Oid for a string. len can be 0 to indicate '\0' termination. */ 217#define SYSCTL_STRING(parent, nbr, name, access, arg, len, descr) \ 218 SYSCTL_OID(parent, nbr, name, CTLTYPE_STRING|(access), \ 219 arg, len, sysctl_handle_string, "A", descr) 220 221#define SYSCTL_ADD_STRING(ctx, parent, nbr, name, access, arg, len, descr) \ 222 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_STRING|(access), \ 223 arg, len, sysctl_handle_string, "A", descr) 224 225/* Oid for an int. If ptr is NULL, val is returned. */ 226#define SYSCTL_INT(parent, nbr, name, access, ptr, val, descr) \ 227 SYSCTL_OID(parent, nbr, name, CTLTYPE_INT|(access), \ 228 ptr, val, sysctl_handle_int, "I", descr) 229 230#define SYSCTL_ADD_INT(ctx, parent, nbr, name, access, ptr, val, descr) \ 231 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_INT|(access), \ 232 ptr, val, sysctl_handle_int, "I", descr) 233 234/* Oid for an unsigned int. If ptr is NULL, val is returned. */ 235#define SYSCTL_UINT(parent, nbr, name, access, ptr, val, descr) \ 236 SYSCTL_OID(parent, nbr, name, CTLTYPE_UINT|(access), \ 237 ptr, val, sysctl_handle_int, "IU", descr) 238 239#define SYSCTL_ADD_UINT(ctx, parent, nbr, name, access, ptr, val, descr) \ 240 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_UINT|(access), \ 241 ptr, val, sysctl_handle_int, "IU", descr) 242 243/* Oid for a long. The pointer must be non NULL. */ 244#define SYSCTL_LONG(parent, nbr, name, access, ptr, val, descr) \ 245 SYSCTL_OID(parent, nbr, name, CTLTYPE_LONG|(access), \ 246 ptr, val, sysctl_handle_long, "L", descr) 247 248#define SYSCTL_ADD_LONG(ctx, parent, nbr, name, access, ptr, descr) \ 249 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_LONG|(access), \ 250 ptr, 0, sysctl_handle_long, "L", descr) 251 252/* Oid for an unsigned long. The pointer must be non NULL. */ 253#define SYSCTL_ULONG(parent, nbr, name, access, ptr, val, descr) \ 254 SYSCTL_OID(parent, nbr, name, CTLTYPE_ULONG|(access), \ 255 ptr, val, sysctl_handle_long, "LU", descr) 256 257#define SYSCTL_ADD_ULONG(ctx, parent, nbr, name, access, ptr, descr) \ 258 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_ULONG|(access), \ 259 ptr, 0, sysctl_handle_long, "LU", descr) 260 261/* Oid for an opaque object. Specified by a pointer and a length. */ 262#define SYSCTL_OPAQUE(parent, nbr, name, access, ptr, len, fmt, descr) \ 263 SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|(access), \ 264 ptr, len, sysctl_handle_opaque, fmt, descr) 265 266#define SYSCTL_ADD_OPAQUE(ctx, parent, nbr, name, access, ptr, len, fmt, descr)\ 267 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_OPAQUE|(access), \ 268 ptr, len, sysctl_handle_opaque, fmt, descr) 269 270/* Oid for a struct. Specified by a pointer and a type. */ 271#define SYSCTL_STRUCT(parent, nbr, name, access, ptr, type, descr) \ 272 SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|(access), \ 273 ptr, sizeof(struct type), sysctl_handle_opaque, \ 274 "S," #type, descr) 275 276#define SYSCTL_ADD_STRUCT(ctx, parent, nbr, name, access, ptr, type, descr) \ 277 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_OPAQUE|(access), \ 278 ptr, sizeof(struct type), sysctl_handle_opaque, "S," #type, descr) 279 280/* Oid for a procedure. Specified by a pointer and an arg. */ 281#define SYSCTL_PROC(parent, nbr, name, access, ptr, arg, handler, fmt, descr) \ 282 SYSCTL_OID(parent, nbr, name, (access), \ 283 ptr, arg, handler, fmt, descr) 284 285#define SYSCTL_ADD_PROC(ctx, parent, nbr, name, access, ptr, arg, handler, fmt, descr) \ 286 sysctl_add_oid(ctx, parent, nbr, name, (access), \ 287 ptr, arg, handler, fmt, descr) 288 289#endif /* _KERNEL */ 290 291/* 292 * Top-level identifiers 293 */ 294#define CTL_UNSPEC 0 /* unused */ 295#define CTL_KERN 1 /* "high kernel": proc, limits */ 296#define CTL_VM 2 /* virtual memory */ 297#define CTL_VFS 3 /* filesystem, mount type is next */ 298#define CTL_NET 4 /* network, see socket.h */ 299#define CTL_DEBUG 5 /* debugging parameters */ 300#define CTL_HW 6 /* generic cpu/io */ 301#define CTL_MACHDEP 7 /* machine dependent */ 302#define CTL_USER 8 /* user-level */ 303#define CTL_P1003_1B 9 /* POSIX 1003.1B */ 304#define CTL_MAXID 10 /* number of valid top-level ids */ 305 306#define CTL_NAMES { \ 307 { 0, 0 }, \ 308 { "kern", CTLTYPE_NODE }, \ 309 { "vm", CTLTYPE_NODE }, \ 310 { "vfs", CTLTYPE_NODE }, \ 311 { "net", CTLTYPE_NODE }, \ 312 { "debug", CTLTYPE_NODE }, \ 313 { "hw", CTLTYPE_NODE }, \ 314 { "machdep", CTLTYPE_NODE }, \ 315 { "user", CTLTYPE_NODE }, \ 316 { "p1003_1b", CTLTYPE_NODE }, \ 317} 318 319/* 320 * CTL_KERN identifiers 321 */ 322#define KERN_OSTYPE 1 /* string: system version */ 323#define KERN_OSRELEASE 2 /* string: system release */ 324#define KERN_OSREV 3 /* int: system revision */ 325#define KERN_VERSION 4 /* string: compile time info */ 326#define KERN_MAXVNODES 5 /* int: max vnodes */ 327#define KERN_MAXPROC 6 /* int: max processes */ 328#define KERN_MAXFILES 7 /* int: max open files */ 329#define KERN_ARGMAX 8 /* int: max arguments to exec */ 330#define KERN_SECURELVL 9 /* int: system security level */ 331#define KERN_HOSTNAME 10 /* string: hostname */ 332#define KERN_HOSTID 11 /* int: host identifier */ 333#define KERN_CLOCKRATE 12 /* struct: struct clockrate */ 334#define KERN_VNODE 13 /* struct: vnode structures */ 335#define KERN_PROC 14 /* struct: process entries */ 336#define KERN_FILE 15 /* struct: file entries */ 337#define KERN_PROF 16 /* node: kernel profiling info */ 338#define KERN_POSIX1 17 /* int: POSIX.1 version */ 339#define KERN_NGROUPS 18 /* int: # of supplemental group ids */ 340#define KERN_JOB_CONTROL 19 /* int: is job control available */ 341#define KERN_SAVED_IDS 20 /* int: saved set-user/group-ID */ 342#define KERN_BOOTTIME 21 /* struct: time kernel was booted */ 343#define KERN_NISDOMAINNAME 22 /* string: YP domain name */ 344#define KERN_UPDATEINTERVAL 23 /* int: update process sleep time */ 345#define KERN_OSRELDATE 24 /* int: OS release date */ 346#define KERN_NTP_PLL 25 /* node: NTP PLL control */ 347#define KERN_BOOTFILE 26 /* string: name of booted kernel */ 348#define KERN_MAXFILESPERPROC 27 /* int: max open files per proc */ 349#define KERN_MAXPROCPERUID 28 /* int: max processes per uid */ 350#define KERN_DUMPDEV 29 /* dev_t: device to dump on */ 351#define KERN_IPC 30 /* node: anything related to IPC */ 352#define KERN_DUMMY 31 /* unused */ 353#define KERN_PS_STRINGS 32 /* int: address of PS_STRINGS */ 354#define KERN_USRSTACK 33 /* int: address of USRSTACK */ 355#define KERN_LOGSIGEXIT 34 /* int: do we log sigexit procs? */ 356#define KERN_IOV_MAX 35 /* int: value of UIO_MAXIOV */ 357#define KERN_MAXID 36 /* number of valid kern ids */ 358 359#define CTL_KERN_NAMES { \ 360 { 0, 0 }, \ 361 { "ostype", CTLTYPE_STRING }, \ 362 { "osrelease", CTLTYPE_STRING }, \ 363 { "osrevision", CTLTYPE_INT }, \ 364 { "version", CTLTYPE_STRING }, \ 365 { "maxvnodes", CTLTYPE_INT }, \ 366 { "maxproc", CTLTYPE_INT }, \ 367 { "maxfiles", CTLTYPE_INT }, \ 368 { "argmax", CTLTYPE_INT }, \ 369 { "securelevel", CTLTYPE_INT }, \ 370 { "hostname", CTLTYPE_STRING }, \ 371 { "hostid", CTLTYPE_UINT }, \ 372 { "clockrate", CTLTYPE_STRUCT }, \ 373 { "vnode", CTLTYPE_STRUCT }, \ 374 { "proc", CTLTYPE_STRUCT }, \ 375 { "file", CTLTYPE_STRUCT }, \ 376 { "profiling", CTLTYPE_NODE }, \ 377 { "posix1version", CTLTYPE_INT }, \ 378 { "ngroups", CTLTYPE_INT }, \ 379 { "job_control", CTLTYPE_INT }, \ 380 { "saved_ids", CTLTYPE_INT }, \ 381 { "boottime", CTLTYPE_STRUCT }, \ 382 { "nisdomainname", CTLTYPE_STRING }, \ 383 { "update", CTLTYPE_INT }, \ 384 { "osreldate", CTLTYPE_INT }, \ 385 { "ntp_pll", CTLTYPE_NODE }, \ 386 { "bootfile", CTLTYPE_STRING }, \ 387 { "maxfilesperproc", CTLTYPE_INT }, \ 388 { "maxprocperuid", CTLTYPE_INT }, \ 389 { "ipc", CTLTYPE_NODE }, \ 390 { "dummy", CTLTYPE_INT }, \ 391 { "ps_strings", CTLTYPE_INT }, \ 392 { "usrstack", CTLTYPE_INT }, \ 393 { "logsigexit", CTLTYPE_INT }, \ 394 { "iov_max", CTLTYPE_INT }, \ 395} 396 397/* 398 * CTL_VFS identifiers 399 */ 400#define CTL_VFS_NAMES { \ 401 { "vfsconf", CTLTYPE_STRUCT }, \ 402} 403 404/* 405 * KERN_PROC subtypes 406 */ 407#define KERN_PROC_ALL 0 /* everything */ 408#define KERN_PROC_PID 1 /* by process id */ 409#define KERN_PROC_PGRP 2 /* by process group id */ 410#define KERN_PROC_SESSION 3 /* by session of pid */ 411#define KERN_PROC_TTY 4 /* by controlling tty */ 412#define KERN_PROC_UID 5 /* by effective uid */ 413#define KERN_PROC_RUID 6 /* by real uid */ 414#define KERN_PROC_ARGS 7 /* get/set arguments/proctitle */ 415 416/* 417 * KERN_IPC identifiers 418 */ 419#define KIPC_MAXSOCKBUF 1 /* int: max size of a socket buffer */ 420#define KIPC_SOCKBUF_WASTE 2 /* int: wastage factor in sockbuf */ 421#define KIPC_SOMAXCONN 3 /* int: max length of connection q */ 422#define KIPC_MAX_LINKHDR 4 /* int: max length of link header */ 423#define KIPC_MAX_PROTOHDR 5 /* int: max length of network header */ 424#define KIPC_MAX_HDR 6 /* int: max total length of headers */ 425#define KIPC_MAX_DATALEN 7 /* int: max length of data? */ 426 427/* 428 * CTL_HW identifiers 429 */ 430#define HW_MACHINE 1 /* string: machine class */ 431#define HW_MODEL 2 /* string: specific machine model */ 432#define HW_NCPU 3 /* int: number of cpus */ 433#define HW_BYTEORDER 4 /* int: machine byte order */ 434#define HW_PHYSMEM 5 /* int: total memory */ 435#define HW_USERMEM 6 /* int: non-kernel memory */ 436#define HW_PAGESIZE 7 /* int: software page size */ 437#define HW_DISKNAMES 8 /* strings: disk drive names */ 438#define HW_DISKSTATS 9 /* struct: diskstats[] */ 439#define HW_FLOATINGPT 10 /* int: has HW floating point? */ 440#define HW_MACHINE_ARCH 11 /* string: machine architecture */ 441#define HW_MAXID 12 /* number of valid hw ids */ 442 443#define CTL_HW_NAMES { \ 444 { 0, 0 }, \ 445 { "machine", CTLTYPE_STRING }, \ 446 { "model", CTLTYPE_STRING }, \ 447 { "ncpu", CTLTYPE_INT }, \ 448 { "byteorder", CTLTYPE_INT }, \ 449 { "physmem", CTLTYPE_ULONG }, \ 450 { "usermem", CTLTYPE_ULONG }, \ 451 { "pagesize", CTLTYPE_INT }, \ 452 { "disknames", CTLTYPE_STRUCT }, \ 453 { "diskstats", CTLTYPE_STRUCT }, \ 454 { "floatingpoint", CTLTYPE_INT }, \ 455} 456 457/* 458 * CTL_USER definitions 459 */ 460#define USER_CS_PATH 1 /* string: _CS_PATH */ 461#define USER_BC_BASE_MAX 2 /* int: BC_BASE_MAX */ 462#define USER_BC_DIM_MAX 3 /* int: BC_DIM_MAX */ 463#define USER_BC_SCALE_MAX 4 /* int: BC_SCALE_MAX */ 464#define USER_BC_STRING_MAX 5 /* int: BC_STRING_MAX */ 465#define USER_COLL_WEIGHTS_MAX 6 /* int: COLL_WEIGHTS_MAX */ 466#define USER_EXPR_NEST_MAX 7 /* int: EXPR_NEST_MAX */ 467#define USER_LINE_MAX 8 /* int: LINE_MAX */ 468#define USER_RE_DUP_MAX 9 /* int: RE_DUP_MAX */ 469#define USER_POSIX2_VERSION 10 /* int: POSIX2_VERSION */ 470#define USER_POSIX2_C_BIND 11 /* int: POSIX2_C_BIND */ 471#define USER_POSIX2_C_DEV 12 /* int: POSIX2_C_DEV */ 472#define USER_POSIX2_CHAR_TERM 13 /* int: POSIX2_CHAR_TERM */ 473#define USER_POSIX2_FORT_DEV 14 /* int: POSIX2_FORT_DEV */ 474#define USER_POSIX2_FORT_RUN 15 /* int: POSIX2_FORT_RUN */ 475#define USER_POSIX2_LOCALEDEF 16 /* int: POSIX2_LOCALEDEF */ 476#define USER_POSIX2_SW_DEV 17 /* int: POSIX2_SW_DEV */ 477#define USER_POSIX2_UPE 18 /* int: POSIX2_UPE */ 478#define USER_STREAM_MAX 19 /* int: POSIX2_STREAM_MAX */ 479#define USER_TZNAME_MAX 20 /* int: POSIX2_TZNAME_MAX */ 480#define USER_MAXID 21 /* number of valid user ids */ 481 482#define CTL_USER_NAMES { \ 483 { 0, 0 }, \ 484 { "cs_path", CTLTYPE_STRING }, \ 485 { "bc_base_max", CTLTYPE_INT }, \ 486 { "bc_dim_max", CTLTYPE_INT }, \ 487 { "bc_scale_max", CTLTYPE_INT }, \ 488 { "bc_string_max", CTLTYPE_INT }, \ 489 { "coll_weights_max", CTLTYPE_INT }, \ 490 { "expr_nest_max", CTLTYPE_INT }, \ 491 { "line_max", CTLTYPE_INT }, \ 492 { "re_dup_max", CTLTYPE_INT }, \ 493 { "posix2_version", CTLTYPE_INT }, \ 494 { "posix2_c_bind", CTLTYPE_INT }, \ 495 { "posix2_c_dev", CTLTYPE_INT }, \ 496 { "posix2_char_term", CTLTYPE_INT }, \ 497 { "posix2_fort_dev", CTLTYPE_INT }, \ 498 { "posix2_fort_run", CTLTYPE_INT }, \ 499 { "posix2_localedef", CTLTYPE_INT }, \ 500 { "posix2_sw_dev", CTLTYPE_INT }, \ 501 { "posix2_upe", CTLTYPE_INT }, \ 502 { "stream_max", CTLTYPE_INT }, \ 503 { "tzname_max", CTLTYPE_INT }, \ 504} 505 506#define CTL_P1003_1B_ASYNCHRONOUS_IO 1 /* boolean */ 507#define CTL_P1003_1B_MAPPED_FILES 2 /* boolean */ 508#define CTL_P1003_1B_MEMLOCK 3 /* boolean */ 509#define CTL_P1003_1B_MEMLOCK_RANGE 4 /* boolean */ 510#define CTL_P1003_1B_MEMORY_PROTECTION 5 /* boolean */ 511#define CTL_P1003_1B_MESSAGE_PASSING 6 /* boolean */ 512#define CTL_P1003_1B_PRIORITIZED_IO 7 /* boolean */ 513#define CTL_P1003_1B_PRIORITY_SCHEDULING 8 /* boolean */ 514#define CTL_P1003_1B_REALTIME_SIGNALS 9 /* boolean */ 515#define CTL_P1003_1B_SEMAPHORES 10 /* boolean */ 516#define CTL_P1003_1B_FSYNC 11 /* boolean */ 517#define CTL_P1003_1B_SHARED_MEMORY_OBJECTS 12 /* boolean */ 518#define CTL_P1003_1B_SYNCHRONIZED_IO 13 /* boolean */ 519#define CTL_P1003_1B_TIMERS 14 /* boolean */ 520#define CTL_P1003_1B_AIO_LISTIO_MAX 15 /* int */ 521#define CTL_P1003_1B_AIO_MAX 16 /* int */ 522#define CTL_P1003_1B_AIO_PRIO_DELTA_MAX 17 /* int */ 523#define CTL_P1003_1B_DELAYTIMER_MAX 18 /* int */ 524#define CTL_P1003_1B_MQ_OPEN_MAX 19 /* int */ 525#define CTL_P1003_1B_PAGESIZE 20 /* int */ 526#define CTL_P1003_1B_RTSIG_MAX 21 /* int */ 527#define CTL_P1003_1B_SEM_NSEMS_MAX 22 /* int */ 528#define CTL_P1003_1B_SEM_VALUE_MAX 23 /* int */ 529#define CTL_P1003_1B_SIGQUEUE_MAX 24 /* int */ 530#define CTL_P1003_1B_TIMER_MAX 25 /* int */ 531 532#define CTL_P1003_1B_MAXID 26 533 534#define CTL_P1003_1B_NAMES { \ 535 { 0, 0 }, \ 536 { "asynchronous_io", CTLTYPE_INT }, \ 537 { "mapped_files", CTLTYPE_INT }, \ 538 { "memlock", CTLTYPE_INT }, \ 539 { "memlock_range", CTLTYPE_INT }, \ 540 { "memory_protection", CTLTYPE_INT }, \ 541 { "message_passing", CTLTYPE_INT }, \ 542 { "prioritized_io", CTLTYPE_INT }, \ 543 { "priority_scheduling", CTLTYPE_INT }, \ 544 { "realtime_signals", CTLTYPE_INT }, \ 545 { "semaphores", CTLTYPE_INT }, \ 546 { "fsync", CTLTYPE_INT }, \ 547 { "shared_memory_objects", CTLTYPE_INT }, \ 548 { "synchronized_io", CTLTYPE_INT }, \ 549 { "timers", CTLTYPE_INT }, \ 550 { "aio_listio_max", CTLTYPE_INT }, \ 551 { "aio_max", CTLTYPE_INT }, \ 552 { "aio_prio_delta_max", CTLTYPE_INT }, \ 553 { "delaytimer_max", CTLTYPE_INT }, \ 554 { "mq_open_max", CTLTYPE_INT }, \ 555 { "pagesize", CTLTYPE_INT }, \ 556 { "rtsig_max", CTLTYPE_INT }, \ 557 { "nsems_max", CTLTYPE_INT }, \ 558 { "sem_value_max", CTLTYPE_INT }, \ 559 { "sigqueue_max", CTLTYPE_INT }, \ 560 { "timer_max", CTLTYPE_INT }, \ 561} 562 563#ifdef _KERNEL 564 565/* 566 * Declare some common oids. 567 */ 568extern struct sysctl_oid_list sysctl__children; 569SYSCTL_DECL(_kern); 570SYSCTL_DECL(_sysctl); 571SYSCTL_DECL(_vm); 572SYSCTL_DECL(_vfs); 573SYSCTL_DECL(_net); 574SYSCTL_DECL(_debug); 575SYSCTL_DECL(_debug_sizeof); 576SYSCTL_DECL(_hw); 577SYSCTL_DECL(_machdep); 578SYSCTL_DECL(_user); 579SYSCTL_DECL(_compat); 580 581extern char machine[]; 582extern char osrelease[]; 583extern char ostype[]; 584 585/* Dynamic oid handling */ 586struct sysctl_oid *sysctl_add_oid(struct sysctl_ctx_list *clist, 587 struct sysctl_oid_list *parent, int nbr, const char *name, 588 int kind, void *arg1, int arg2, 589 int (*handler) (SYSCTL_HANDLER_ARGS), 590 const char *fmt, const char *descr); 591int sysctl_remove_oid(struct sysctl_oid *oidp, int del, int recurse); 592int sysctl_ctx_init(struct sysctl_ctx_list *clist); 593int sysctl_ctx_free(struct sysctl_ctx_list *clist); 594struct sysctl_ctx_entry *sysctl_ctx_entry_add(struct sysctl_ctx_list *clist, 595 struct sysctl_oid *oidp); 596struct sysctl_ctx_entry *sysctl_ctx_entry_find(struct sysctl_ctx_list *clist, 597 struct sysctl_oid *oidp); 598int sysctl_ctx_entry_del(struct sysctl_ctx_list *clist, 599 struct sysctl_oid *oidp); 600 601int kernel_sysctl(struct thread *td, int *name, u_int namelen, void *old, 602 size_t *oldlenp, void *new, size_t newlen, 603 size_t *retval); 604int kernel_sysctlbyname(struct thread *td, char *name, 605 void *old, size_t *oldlenp, void *new, size_t newlen, 606 size_t *retval); 607int userland_sysctl(struct thread *td, int *name, u_int namelen, void *old, 608 size_t *oldlenp, int inkernel, void *new, size_t newlen, 609 size_t *retval); 610int sysctl_find_oid(int *name, u_int namelen, struct sysctl_oid **noid, 611 int *nindx, struct sysctl_req *req); 612void sysctl_wire_old_buffer(struct sysctl_req *req, size_t len); 613 614#else /* !_KERNEL */ 615#include <sys/cdefs.h> 616 617__BEGIN_DECLS 618int sysctl(int *, u_int, void *, size_t *, void *, size_t); 619int sysctlbyname(const char *, void *, size_t *, void *, size_t); 620int sysctlnametomib(const char *, int *, size_t *); 621__END_DECLS 622#endif /* _KERNEL */ 623 624#endif /* !_SYS_SYSCTL_H_ */ 625