sysctl.h revision 127052
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 127052 2004-03-16 06:53:03Z truckman $ 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 24 /* 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(8) 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#define CTLFLAG_TUN 0x00080000 /* Tunable variable */ 91#define CTLFLAG_RDTUN (CTLFLAG_RD|CTLFLAG_TUN) 92 93/* 94 * Secure level. Note that CTLFLAG_SECURE == CTLFLAG_SECURE1. 95 * 96 * Secure when the securelevel is raised to at least N. 97 */ 98#define CTLSHIFT_SECURE 20 99#define CTLFLAG_SECURE1 (CTLFLAG_SECURE | (0 << CTLSHIFT_SECURE)) 100#define CTLFLAG_SECURE2 (CTLFLAG_SECURE | (1 << CTLSHIFT_SECURE)) 101#define CTLFLAG_SECURE3 (CTLFLAG_SECURE | (2 << CTLSHIFT_SECURE)) 102 103/* 104 * USE THIS instead of a hardwired number from the categories below 105 * to get dynamically assigned sysctl entries using the linker-set 106 * technology. This is the way nearly all new sysctl variables should 107 * be implemented. 108 * e.g. SYSCTL_INT(_parent, OID_AUTO, name, CTLFLAG_RW, &variable, 0, ""); 109 */ 110#define OID_AUTO (-1) 111 112/* 113 * The starting number for dynamically-assigned entries. WARNING! 114 * ALL static sysctl entries should have numbers LESS than this! 115 */ 116#define CTL_AUTO_START 0x100 117 118#ifdef _KERNEL 119#define SYSCTL_HANDLER_ARGS struct sysctl_oid *oidp, void *arg1, int arg2, \ 120 struct sysctl_req *req 121 122/* definitions for sysctl_req 'lock' member */ 123#define REQ_UNLOCKED 0 /* not locked and not wired */ 124#define REQ_LOCKED 1 /* locked and not wired */ 125#define REQ_WIRED 2 /* locked and wired */ 126 127/* 128 * This describes the access space for a sysctl request. This is needed 129 * so that we can use the interface from the kernel or from user-space. 130 */ 131struct sysctl_req { 132 struct thread *td; /* used for access checking */ 133 int lock; /* locking/wiring state */ 134 void *oldptr; 135 size_t oldlen; 136 size_t oldidx; 137 int (*oldfunc)(struct sysctl_req *, const void *, size_t); 138 void *newptr; 139 size_t newlen; 140 size_t newidx; 141 int (*newfunc)(struct sysctl_req *, void *, size_t); 142 size_t validlen; 143}; 144 145SLIST_HEAD(sysctl_oid_list, sysctl_oid); 146 147/* 148 * This describes one "oid" in the MIB tree. Potentially more nodes can 149 * be hidden behind it, expanded by the handler. 150 */ 151struct sysctl_oid { 152 struct sysctl_oid_list *oid_parent; 153 SLIST_ENTRY(sysctl_oid) oid_link; 154 int oid_number; 155 u_int oid_kind; 156 void *oid_arg1; 157 int oid_arg2; 158 const char *oid_name; 159 int (*oid_handler)(SYSCTL_HANDLER_ARGS); 160 const char *oid_fmt; 161 int oid_refcnt; 162 const char *descr; 163}; 164 165#define SYSCTL_IN(r, p, l) (r->newfunc)(r, p, l) 166#define SYSCTL_OUT(r, p, l) (r->oldfunc)(r, p, l) 167 168int sysctl_handle_int(SYSCTL_HANDLER_ARGS); 169int sysctl_handle_long(SYSCTL_HANDLER_ARGS); 170int sysctl_handle_intptr(SYSCTL_HANDLER_ARGS); 171int sysctl_handle_string(SYSCTL_HANDLER_ARGS); 172int sysctl_handle_opaque(SYSCTL_HANDLER_ARGS); 173 174/* 175 * These functions are used to add/remove an oid from the mib. 176 */ 177void sysctl_register_oid(struct sysctl_oid *oidp); 178void sysctl_unregister_oid(struct sysctl_oid *oidp); 179 180/* Declare a static oid to allow child oids to be added to it. */ 181#define SYSCTL_DECL(name) \ 182 extern struct sysctl_oid_list sysctl_##name##_children 183 184/* Hide these in macros */ 185#define SYSCTL_CHILDREN(oid_ptr) (struct sysctl_oid_list *) \ 186 (oid_ptr)->oid_arg1 187#define SYSCTL_STATIC_CHILDREN(oid_name) \ 188 (&sysctl_##oid_name##_children) 189 190/* === Structs and macros related to context handling === */ 191 192/* All dynamically created sysctls can be tracked in a context list. */ 193struct sysctl_ctx_entry { 194 struct sysctl_oid *entry; 195 TAILQ_ENTRY(sysctl_ctx_entry) link; 196}; 197 198TAILQ_HEAD(sysctl_ctx_list, sysctl_ctx_entry); 199 200#define SYSCTL_NODE_CHILDREN(parent, name) \ 201 sysctl_##parent##_##name##_children 202 203/* This constructs a "raw" MIB oid. */ 204#define SYSCTL_OID(parent, nbr, name, kind, a1, a2, handler, fmt, descr) \ 205 static struct sysctl_oid sysctl__##parent##_##name = { \ 206 &sysctl_##parent##_children, { 0 }, \ 207 nbr, kind, a1, a2, #name, handler, fmt, 0, descr }; \ 208 DATA_SET(sysctl_set, sysctl__##parent##_##name) 209 210#define SYSCTL_ADD_OID(ctx, parent, nbr, name, kind, a1, a2, handler, fmt, descr) \ 211 sysctl_add_oid(ctx, parent, nbr, name, kind, a1, a2, handler, fmt, descr) 212 213/* This constructs a node from which other oids can hang. */ 214#define SYSCTL_NODE(parent, nbr, name, access, handler, descr) \ 215 struct sysctl_oid_list SYSCTL_NODE_CHILDREN(parent, name); \ 216 SYSCTL_OID(parent, nbr, name, CTLTYPE_NODE|(access), \ 217 (void*)&SYSCTL_NODE_CHILDREN(parent, name), 0, handler, \ 218 "N", descr) 219 220#define SYSCTL_ADD_NODE(ctx, parent, nbr, name, access, handler, descr) \ 221 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_NODE|(access), \ 222 0, 0, handler, "N", descr) 223 224/* Oid for a string. len can be 0 to indicate '\0' termination. */ 225#define SYSCTL_STRING(parent, nbr, name, access, arg, len, descr) \ 226 SYSCTL_OID(parent, nbr, name, CTLTYPE_STRING|(access), \ 227 arg, len, sysctl_handle_string, "A", descr) 228 229#define SYSCTL_ADD_STRING(ctx, parent, nbr, name, access, arg, len, descr) \ 230 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_STRING|(access), \ 231 arg, len, sysctl_handle_string, "A", descr) 232 233/* Oid for an int. If ptr is NULL, val is returned. */ 234#define SYSCTL_INT(parent, nbr, name, access, ptr, val, descr) \ 235 SYSCTL_OID(parent, nbr, name, CTLTYPE_INT|(access), \ 236 ptr, val, sysctl_handle_int, "I", descr) 237 238#define SYSCTL_ADD_INT(ctx, parent, nbr, name, access, ptr, val, descr) \ 239 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_INT|(access), \ 240 ptr, val, sysctl_handle_int, "I", descr) 241 242/* Oid for an unsigned int. If ptr is NULL, val is returned. */ 243#define SYSCTL_UINT(parent, nbr, name, access, ptr, val, descr) \ 244 SYSCTL_OID(parent, nbr, name, CTLTYPE_UINT|(access), \ 245 ptr, val, sysctl_handle_int, "IU", descr) 246 247#define SYSCTL_ADD_UINT(ctx, parent, nbr, name, access, ptr, val, descr) \ 248 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_UINT|(access), \ 249 ptr, val, sysctl_handle_int, "IU", descr) 250 251/* Oid for a long. The pointer must be non NULL. */ 252#define SYSCTL_LONG(parent, nbr, name, access, ptr, val, descr) \ 253 SYSCTL_OID(parent, nbr, name, CTLTYPE_LONG|(access), \ 254 ptr, val, sysctl_handle_long, "L", descr) 255 256#define SYSCTL_ADD_LONG(ctx, parent, nbr, name, access, ptr, descr) \ 257 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_LONG|(access), \ 258 ptr, 0, sysctl_handle_long, "L", descr) 259 260/* Oid for an unsigned long. The pointer must be non NULL. */ 261#define SYSCTL_ULONG(parent, nbr, name, access, ptr, val, descr) \ 262 SYSCTL_OID(parent, nbr, name, CTLTYPE_ULONG|(access), \ 263 ptr, val, sysctl_handle_long, "LU", descr) 264 265#define SYSCTL_ADD_ULONG(ctx, parent, nbr, name, access, ptr, descr) \ 266 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_ULONG|(access), \ 267 ptr, 0, sysctl_handle_long, "LU", descr) 268 269/* Oid for an opaque object. Specified by a pointer and a length. */ 270#define SYSCTL_OPAQUE(parent, nbr, name, access, ptr, len, fmt, descr) \ 271 SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|(access), \ 272 ptr, len, sysctl_handle_opaque, fmt, descr) 273 274#define SYSCTL_ADD_OPAQUE(ctx, parent, nbr, name, access, ptr, len, fmt, descr)\ 275 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_OPAQUE|(access), \ 276 ptr, len, sysctl_handle_opaque, fmt, descr) 277 278/* Oid for a struct. Specified by a pointer and a type. */ 279#define SYSCTL_STRUCT(parent, nbr, name, access, ptr, type, descr) \ 280 SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|(access), \ 281 ptr, sizeof(struct type), sysctl_handle_opaque, \ 282 "S," #type, descr) 283 284#define SYSCTL_ADD_STRUCT(ctx, parent, nbr, name, access, ptr, type, descr) \ 285 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_OPAQUE|(access), \ 286 ptr, sizeof(struct type), sysctl_handle_opaque, "S," #type, descr) 287 288/* Oid for a procedure. Specified by a pointer and an arg. */ 289#define SYSCTL_PROC(parent, nbr, name, access, ptr, arg, handler, fmt, descr) \ 290 SYSCTL_OID(parent, nbr, name, (access), \ 291 ptr, arg, handler, fmt, descr) 292 293#define SYSCTL_ADD_PROC(ctx, parent, nbr, name, access, ptr, arg, handler, fmt, descr) \ 294 sysctl_add_oid(ctx, parent, nbr, name, (access), \ 295 ptr, arg, handler, fmt, descr) 296 297#endif /* _KERNEL */ 298 299/* 300 * Top-level identifiers 301 */ 302#define CTL_UNSPEC 0 /* unused */ 303#define CTL_KERN 1 /* "high kernel": proc, limits */ 304#define CTL_VM 2 /* virtual memory */ 305#define CTL_VFS 3 /* filesystem, mount type is next */ 306#define CTL_NET 4 /* network, see socket.h */ 307#define CTL_DEBUG 5 /* debugging parameters */ 308#define CTL_HW 6 /* generic cpu/io */ 309#define CTL_MACHDEP 7 /* machine dependent */ 310#define CTL_USER 8 /* user-level */ 311#define CTL_P1003_1B 9 /* POSIX 1003.1B */ 312#define CTL_MAXID 10 /* number of valid top-level ids */ 313 314#define CTL_NAMES { \ 315 { 0, 0 }, \ 316 { "kern", CTLTYPE_NODE }, \ 317 { "vm", CTLTYPE_NODE }, \ 318 { "vfs", CTLTYPE_NODE }, \ 319 { "net", CTLTYPE_NODE }, \ 320 { "debug", CTLTYPE_NODE }, \ 321 { "hw", CTLTYPE_NODE }, \ 322 { "machdep", CTLTYPE_NODE }, \ 323 { "user", CTLTYPE_NODE }, \ 324 { "p1003_1b", CTLTYPE_NODE }, \ 325} 326 327/* 328 * CTL_KERN identifiers 329 */ 330#define KERN_OSTYPE 1 /* string: system version */ 331#define KERN_OSRELEASE 2 /* string: system release */ 332#define KERN_OSREV 3 /* int: system revision */ 333#define KERN_VERSION 4 /* string: compile time info */ 334#define KERN_MAXVNODES 5 /* int: max vnodes */ 335#define KERN_MAXPROC 6 /* int: max processes */ 336#define KERN_MAXFILES 7 /* int: max open files */ 337#define KERN_ARGMAX 8 /* int: max arguments to exec */ 338#define KERN_SECURELVL 9 /* int: system security level */ 339#define KERN_HOSTNAME 10 /* string: hostname */ 340#define KERN_HOSTID 11 /* int: host identifier */ 341#define KERN_CLOCKRATE 12 /* struct: struct clockrate */ 342#define KERN_VNODE 13 /* struct: vnode structures */ 343#define KERN_PROC 14 /* struct: process entries */ 344#define KERN_FILE 15 /* struct: file entries */ 345#define KERN_PROF 16 /* node: kernel profiling info */ 346#define KERN_POSIX1 17 /* int: POSIX.1 version */ 347#define KERN_NGROUPS 18 /* int: # of supplemental group ids */ 348#define KERN_JOB_CONTROL 19 /* int: is job control available */ 349#define KERN_SAVED_IDS 20 /* int: saved set-user/group-ID */ 350#define KERN_BOOTTIME 21 /* struct: time kernel was booted */ 351#define KERN_NISDOMAINNAME 22 /* string: YP domain name */ 352#define KERN_UPDATEINTERVAL 23 /* int: update process sleep time */ 353#define KERN_OSRELDATE 24 /* int: kernel release date */ 354#define KERN_NTP_PLL 25 /* node: NTP PLL control */ 355#define KERN_BOOTFILE 26 /* string: name of booted kernel */ 356#define KERN_MAXFILESPERPROC 27 /* int: max open files per proc */ 357#define KERN_MAXPROCPERUID 28 /* int: max processes per uid */ 358#define KERN_DUMPDEV 29 /* dev_t: device to dump on */ 359#define KERN_IPC 30 /* node: anything related to IPC */ 360#define KERN_DUMMY 31 /* unused */ 361#define KERN_PS_STRINGS 32 /* int: address of PS_STRINGS */ 362#define KERN_USRSTACK 33 /* int: address of USRSTACK */ 363#define KERN_LOGSIGEXIT 34 /* int: do we log sigexit procs? */ 364#define KERN_IOV_MAX 35 /* int: value of UIO_MAXIOV */ 365#define KERN_MAXID 36 /* number of valid kern ids */ 366 367#define CTL_KERN_NAMES { \ 368 { 0, 0 }, \ 369 { "ostype", CTLTYPE_STRING }, \ 370 { "osrelease", CTLTYPE_STRING }, \ 371 { "osrevision", CTLTYPE_INT }, \ 372 { "version", CTLTYPE_STRING }, \ 373 { "maxvnodes", CTLTYPE_INT }, \ 374 { "maxproc", CTLTYPE_INT }, \ 375 { "maxfiles", CTLTYPE_INT }, \ 376 { "argmax", CTLTYPE_INT }, \ 377 { "securelevel", CTLTYPE_INT }, \ 378 { "hostname", CTLTYPE_STRING }, \ 379 { "hostid", CTLTYPE_UINT }, \ 380 { "clockrate", CTLTYPE_STRUCT }, \ 381 { "vnode", CTLTYPE_STRUCT }, \ 382 { "proc", CTLTYPE_STRUCT }, \ 383 { "file", CTLTYPE_STRUCT }, \ 384 { "profiling", CTLTYPE_NODE }, \ 385 { "posix1version", CTLTYPE_INT }, \ 386 { "ngroups", CTLTYPE_INT }, \ 387 { "job_control", CTLTYPE_INT }, \ 388 { "saved_ids", CTLTYPE_INT }, \ 389 { "boottime", CTLTYPE_STRUCT }, \ 390 { "nisdomainname", CTLTYPE_STRING }, \ 391 { "update", CTLTYPE_INT }, \ 392 { "osreldate", CTLTYPE_INT }, \ 393 { "ntp_pll", CTLTYPE_NODE }, \ 394 { "bootfile", CTLTYPE_STRING }, \ 395 { "maxfilesperproc", CTLTYPE_INT }, \ 396 { "maxprocperuid", CTLTYPE_INT }, \ 397 { "ipc", CTLTYPE_NODE }, \ 398 { "dummy", CTLTYPE_INT }, \ 399 { "ps_strings", CTLTYPE_INT }, \ 400 { "usrstack", CTLTYPE_INT }, \ 401 { "logsigexit", CTLTYPE_INT }, \ 402 { "iov_max", CTLTYPE_INT }, \ 403} 404 405/* 406 * CTL_VFS identifiers 407 */ 408#define CTL_VFS_NAMES { \ 409 { "vfsconf", CTLTYPE_STRUCT }, \ 410} 411 412/* 413 * KERN_PROC subtypes 414 */ 415#define KERN_PROC_ALL 0 /* everything */ 416#define KERN_PROC_PID 1 /* by process id */ 417#define KERN_PROC_PGRP 2 /* by process group id */ 418#define KERN_PROC_SESSION 3 /* by session of pid */ 419#define KERN_PROC_TTY 4 /* by controlling tty */ 420#define KERN_PROC_UID 5 /* by effective uid */ 421#define KERN_PROC_RUID 6 /* by real uid */ 422#define KERN_PROC_ARGS 7 /* get/set arguments/proctitle */ 423#define KERN_PROC_PROC 8 /* only return procs */ 424#define KERN_PROC_SV_NAME 9 /* get syscall vector name */ 425#define KERN_PROC_INC_THREAD 0x10 /* 426 * modifier for pid, pgrp, tty, 427 * uid, ruid, and proc 428 */ 429 430/* 431 * KERN_IPC identifiers 432 */ 433#define KIPC_MAXSOCKBUF 1 /* int: max size of a socket buffer */ 434#define KIPC_SOCKBUF_WASTE 2 /* int: wastage factor in sockbuf */ 435#define KIPC_SOMAXCONN 3 /* int: max length of connection q */ 436#define KIPC_MAX_LINKHDR 4 /* int: max length of link header */ 437#define KIPC_MAX_PROTOHDR 5 /* int: max length of network header */ 438#define KIPC_MAX_HDR 6 /* int: max total length of headers */ 439#define KIPC_MAX_DATALEN 7 /* int: max length of data? */ 440 441/* 442 * CTL_HW identifiers 443 */ 444#define HW_MACHINE 1 /* string: machine class */ 445#define HW_MODEL 2 /* string: specific machine model */ 446#define HW_NCPU 3 /* int: number of cpus */ 447#define HW_BYTEORDER 4 /* int: machine byte order */ 448#define HW_PHYSMEM 5 /* int: total memory */ 449#define HW_USERMEM 6 /* int: non-kernel memory */ 450#define HW_PAGESIZE 7 /* int: software page size */ 451#define HW_DISKNAMES 8 /* strings: disk drive names */ 452#define HW_DISKSTATS 9 /* struct: diskstats[] */ 453#define HW_FLOATINGPT 10 /* int: has HW floating point? */ 454#define HW_MACHINE_ARCH 11 /* string: machine architecture */ 455#define HW_MAXID 12 /* number of valid hw ids */ 456 457#define CTL_HW_NAMES { \ 458 { 0, 0 }, \ 459 { "machine", CTLTYPE_STRING }, \ 460 { "model", CTLTYPE_STRING }, \ 461 { "ncpu", CTLTYPE_INT }, \ 462 { "byteorder", CTLTYPE_INT }, \ 463 { "physmem", CTLTYPE_ULONG }, \ 464 { "usermem", CTLTYPE_ULONG }, \ 465 { "pagesize", CTLTYPE_INT }, \ 466 { "disknames", CTLTYPE_STRUCT }, \ 467 { "diskstats", CTLTYPE_STRUCT }, \ 468 { "floatingpoint", CTLTYPE_INT }, \ 469} 470 471/* 472 * CTL_USER definitions 473 */ 474#define USER_CS_PATH 1 /* string: _CS_PATH */ 475#define USER_BC_BASE_MAX 2 /* int: BC_BASE_MAX */ 476#define USER_BC_DIM_MAX 3 /* int: BC_DIM_MAX */ 477#define USER_BC_SCALE_MAX 4 /* int: BC_SCALE_MAX */ 478#define USER_BC_STRING_MAX 5 /* int: BC_STRING_MAX */ 479#define USER_COLL_WEIGHTS_MAX 6 /* int: COLL_WEIGHTS_MAX */ 480#define USER_EXPR_NEST_MAX 7 /* int: EXPR_NEST_MAX */ 481#define USER_LINE_MAX 8 /* int: LINE_MAX */ 482#define USER_RE_DUP_MAX 9 /* int: RE_DUP_MAX */ 483#define USER_POSIX2_VERSION 10 /* int: POSIX2_VERSION */ 484#define USER_POSIX2_C_BIND 11 /* int: POSIX2_C_BIND */ 485#define USER_POSIX2_C_DEV 12 /* int: POSIX2_C_DEV */ 486#define USER_POSIX2_CHAR_TERM 13 /* int: POSIX2_CHAR_TERM */ 487#define USER_POSIX2_FORT_DEV 14 /* int: POSIX2_FORT_DEV */ 488#define USER_POSIX2_FORT_RUN 15 /* int: POSIX2_FORT_RUN */ 489#define USER_POSIX2_LOCALEDEF 16 /* int: POSIX2_LOCALEDEF */ 490#define USER_POSIX2_SW_DEV 17 /* int: POSIX2_SW_DEV */ 491#define USER_POSIX2_UPE 18 /* int: POSIX2_UPE */ 492#define USER_STREAM_MAX 19 /* int: POSIX2_STREAM_MAX */ 493#define USER_TZNAME_MAX 20 /* int: POSIX2_TZNAME_MAX */ 494#define USER_MAXID 21 /* number of valid user ids */ 495 496#define CTL_USER_NAMES { \ 497 { 0, 0 }, \ 498 { "cs_path", CTLTYPE_STRING }, \ 499 { "bc_base_max", CTLTYPE_INT }, \ 500 { "bc_dim_max", CTLTYPE_INT }, \ 501 { "bc_scale_max", CTLTYPE_INT }, \ 502 { "bc_string_max", CTLTYPE_INT }, \ 503 { "coll_weights_max", CTLTYPE_INT }, \ 504 { "expr_nest_max", CTLTYPE_INT }, \ 505 { "line_max", CTLTYPE_INT }, \ 506 { "re_dup_max", CTLTYPE_INT }, \ 507 { "posix2_version", CTLTYPE_INT }, \ 508 { "posix2_c_bind", CTLTYPE_INT }, \ 509 { "posix2_c_dev", CTLTYPE_INT }, \ 510 { "posix2_char_term", CTLTYPE_INT }, \ 511 { "posix2_fort_dev", CTLTYPE_INT }, \ 512 { "posix2_fort_run", CTLTYPE_INT }, \ 513 { "posix2_localedef", CTLTYPE_INT }, \ 514 { "posix2_sw_dev", CTLTYPE_INT }, \ 515 { "posix2_upe", CTLTYPE_INT }, \ 516 { "stream_max", CTLTYPE_INT }, \ 517 { "tzname_max", CTLTYPE_INT }, \ 518} 519 520#define CTL_P1003_1B_ASYNCHRONOUS_IO 1 /* boolean */ 521#define CTL_P1003_1B_MAPPED_FILES 2 /* boolean */ 522#define CTL_P1003_1B_MEMLOCK 3 /* boolean */ 523#define CTL_P1003_1B_MEMLOCK_RANGE 4 /* boolean */ 524#define CTL_P1003_1B_MEMORY_PROTECTION 5 /* boolean */ 525#define CTL_P1003_1B_MESSAGE_PASSING 6 /* boolean */ 526#define CTL_P1003_1B_PRIORITIZED_IO 7 /* boolean */ 527#define CTL_P1003_1B_PRIORITY_SCHEDULING 8 /* boolean */ 528#define CTL_P1003_1B_REALTIME_SIGNALS 9 /* boolean */ 529#define CTL_P1003_1B_SEMAPHORES 10 /* boolean */ 530#define CTL_P1003_1B_FSYNC 11 /* boolean */ 531#define CTL_P1003_1B_SHARED_MEMORY_OBJECTS 12 /* boolean */ 532#define CTL_P1003_1B_SYNCHRONIZED_IO 13 /* boolean */ 533#define CTL_P1003_1B_TIMERS 14 /* boolean */ 534#define CTL_P1003_1B_AIO_LISTIO_MAX 15 /* int */ 535#define CTL_P1003_1B_AIO_MAX 16 /* int */ 536#define CTL_P1003_1B_AIO_PRIO_DELTA_MAX 17 /* int */ 537#define CTL_P1003_1B_DELAYTIMER_MAX 18 /* int */ 538#define CTL_P1003_1B_MQ_OPEN_MAX 19 /* int */ 539#define CTL_P1003_1B_PAGESIZE 20 /* int */ 540#define CTL_P1003_1B_RTSIG_MAX 21 /* int */ 541#define CTL_P1003_1B_SEM_NSEMS_MAX 22 /* int */ 542#define CTL_P1003_1B_SEM_VALUE_MAX 23 /* int */ 543#define CTL_P1003_1B_SIGQUEUE_MAX 24 /* int */ 544#define CTL_P1003_1B_TIMER_MAX 25 /* int */ 545 546#define CTL_P1003_1B_MAXID 26 547 548#define CTL_P1003_1B_NAMES { \ 549 { 0, 0 }, \ 550 { "asynchronous_io", CTLTYPE_INT }, \ 551 { "mapped_files", CTLTYPE_INT }, \ 552 { "memlock", CTLTYPE_INT }, \ 553 { "memlock_range", CTLTYPE_INT }, \ 554 { "memory_protection", CTLTYPE_INT }, \ 555 { "message_passing", CTLTYPE_INT }, \ 556 { "prioritized_io", CTLTYPE_INT }, \ 557 { "priority_scheduling", CTLTYPE_INT }, \ 558 { "realtime_signals", CTLTYPE_INT }, \ 559 { "semaphores", CTLTYPE_INT }, \ 560 { "fsync", CTLTYPE_INT }, \ 561 { "shared_memory_objects", CTLTYPE_INT }, \ 562 { "synchronized_io", CTLTYPE_INT }, \ 563 { "timers", CTLTYPE_INT }, \ 564 { "aio_listio_max", CTLTYPE_INT }, \ 565 { "aio_max", CTLTYPE_INT }, \ 566 { "aio_prio_delta_max", CTLTYPE_INT }, \ 567 { "delaytimer_max", CTLTYPE_INT }, \ 568 { "mq_open_max", CTLTYPE_INT }, \ 569 { "pagesize", CTLTYPE_INT }, \ 570 { "rtsig_max", CTLTYPE_INT }, \ 571 { "nsems_max", CTLTYPE_INT }, \ 572 { "sem_value_max", CTLTYPE_INT }, \ 573 { "sigqueue_max", CTLTYPE_INT }, \ 574 { "timer_max", CTLTYPE_INT }, \ 575} 576 577#ifdef _KERNEL 578 579/* 580 * Declare some common oids. 581 */ 582extern struct sysctl_oid_list sysctl__children; 583SYSCTL_DECL(_kern); 584SYSCTL_DECL(_sysctl); 585SYSCTL_DECL(_vm); 586SYSCTL_DECL(_vfs); 587SYSCTL_DECL(_net); 588SYSCTL_DECL(_debug); 589SYSCTL_DECL(_debug_sizeof); 590SYSCTL_DECL(_hw); 591SYSCTL_DECL(_machdep); 592SYSCTL_DECL(_user); 593SYSCTL_DECL(_compat); 594 595extern char machine[]; 596extern char osrelease[]; 597extern char ostype[]; 598extern char kern_ident[]; 599 600/* Dynamic oid handling */ 601struct sysctl_oid *sysctl_add_oid(struct sysctl_ctx_list *clist, 602 struct sysctl_oid_list *parent, int nbr, const char *name, 603 int kind, void *arg1, int arg2, 604 int (*handler) (SYSCTL_HANDLER_ARGS), 605 const char *fmt, const char *descr); 606int sysctl_move_oid(struct sysctl_oid *oidp, 607 struct sysctl_oid_list *parent); 608int sysctl_remove_oid(struct sysctl_oid *oidp, int del, int recurse); 609int sysctl_ctx_init(struct sysctl_ctx_list *clist); 610int sysctl_ctx_free(struct sysctl_ctx_list *clist); 611struct sysctl_ctx_entry *sysctl_ctx_entry_add(struct sysctl_ctx_list *clist, 612 struct sysctl_oid *oidp); 613struct sysctl_ctx_entry *sysctl_ctx_entry_find(struct sysctl_ctx_list *clist, 614 struct sysctl_oid *oidp); 615int sysctl_ctx_entry_del(struct sysctl_ctx_list *clist, 616 struct sysctl_oid *oidp); 617 618int kernel_sysctl(struct thread *td, int *name, u_int namelen, void *old, 619 size_t *oldlenp, void *new, size_t newlen, 620 size_t *retval); 621int kernel_sysctlbyname(struct thread *td, char *name, 622 void *old, size_t *oldlenp, void *new, size_t newlen, 623 size_t *retval); 624int userland_sysctl(struct thread *td, int *name, u_int namelen, void *old, 625 size_t *oldlenp, int inkernel, void *new, size_t newlen, 626 size_t *retval); 627int sysctl_find_oid(int *name, u_int namelen, struct sysctl_oid **noid, 628 int *nindx, struct sysctl_req *req); 629int sysctl_wire_old_buffer(struct sysctl_req *req, size_t len); 630 631#else /* !_KERNEL */ 632#include <sys/cdefs.h> 633 634__BEGIN_DECLS 635int sysctl(int *, u_int, void *, size_t *, void *, size_t); 636int sysctlbyname(const char *, void *, size_t *, void *, size_t); 637int sysctlnametomib(const char *, int *, size_t *); 638__END_DECLS 639#endif /* _KERNEL */ 640 641#endif /* !_SYS_SYSCTL_H_ */ 642