sysctl.h revision 121305
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 121305 2003-10-21 16:48:33Z silby $ 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#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}; 143 144SLIST_HEAD(sysctl_oid_list, sysctl_oid); 145 146/* 147 * This describes one "oid" in the MIB tree. Potentially more nodes can 148 * be hidden behind it, expanded by the handler. 149 */ 150struct sysctl_oid { 151 struct sysctl_oid_list *oid_parent; 152 SLIST_ENTRY(sysctl_oid) oid_link; 153 int oid_number; 154 u_int oid_kind; 155 void *oid_arg1; 156 int oid_arg2; 157 const char *oid_name; 158 int (*oid_handler)(SYSCTL_HANDLER_ARGS); 159 const char *oid_fmt; 160 int oid_refcnt; 161 const char *descr; 162}; 163 164#define SYSCTL_IN(r, p, l) (r->newfunc)(r, p, l) 165#define SYSCTL_OUT(r, p, l) (r->oldfunc)(r, p, l) 166 167int sysctl_handle_int(SYSCTL_HANDLER_ARGS); 168int sysctl_handle_long(SYSCTL_HANDLER_ARGS); 169int sysctl_handle_intptr(SYSCTL_HANDLER_ARGS); 170int sysctl_handle_string(SYSCTL_HANDLER_ARGS); 171int sysctl_handle_opaque(SYSCTL_HANDLER_ARGS); 172 173/* 174 * These functions are used to add/remove an oid from the mib. 175 */ 176void sysctl_register_oid(struct sysctl_oid *oidp); 177void sysctl_unregister_oid(struct sysctl_oid *oidp); 178 179/* Declare a static oid to allow child oids to be added to it. */ 180#define SYSCTL_DECL(name) \ 181 extern struct sysctl_oid_list sysctl_##name##_children 182 183/* Hide these in macros */ 184#define SYSCTL_CHILDREN(oid_ptr) (struct sysctl_oid_list *) \ 185 (oid_ptr)->oid_arg1 186#define SYSCTL_STATIC_CHILDREN(oid_name) \ 187 (&sysctl_##oid_name##_children) 188 189/* === Structs and macros related to context handling === */ 190 191/* All dynamically created sysctls can be tracked in a context list. */ 192struct sysctl_ctx_entry { 193 struct sysctl_oid *entry; 194 TAILQ_ENTRY(sysctl_ctx_entry) link; 195}; 196 197TAILQ_HEAD(sysctl_ctx_list, sysctl_ctx_entry); 198 199#define SYSCTL_NODE_CHILDREN(parent, name) \ 200 sysctl_##parent##_##name##_children 201 202/* This constructs a "raw" MIB oid. */ 203#define SYSCTL_OID(parent, nbr, name, kind, a1, a2, handler, fmt, descr) \ 204 static struct sysctl_oid sysctl__##parent##_##name = { \ 205 &sysctl_##parent##_children, { 0 }, \ 206 nbr, kind, a1, a2, #name, handler, fmt, 0, descr }; \ 207 DATA_SET(sysctl_set, sysctl__##parent##_##name) 208 209#define SYSCTL_ADD_OID(ctx, parent, nbr, name, kind, a1, a2, handler, fmt, descr) \ 210 sysctl_add_oid(ctx, parent, nbr, name, kind, a1, a2, handler, fmt, descr) 211 212/* This constructs a node from which other oids can hang. */ 213#define SYSCTL_NODE(parent, nbr, name, access, handler, descr) \ 214 struct sysctl_oid_list SYSCTL_NODE_CHILDREN(parent, name); \ 215 SYSCTL_OID(parent, nbr, name, CTLTYPE_NODE|(access), \ 216 (void*)&SYSCTL_NODE_CHILDREN(parent, name), 0, handler, \ 217 "N", descr) 218 219#define SYSCTL_ADD_NODE(ctx, parent, nbr, name, access, handler, descr) \ 220 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_NODE|(access), \ 221 0, 0, handler, "N", descr) 222 223/* Oid for a string. len can be 0 to indicate '\0' termination. */ 224#define SYSCTL_STRING(parent, nbr, name, access, arg, len, descr) \ 225 SYSCTL_OID(parent, nbr, name, CTLTYPE_STRING|(access), \ 226 arg, len, sysctl_handle_string, "A", descr) 227 228#define SYSCTL_ADD_STRING(ctx, parent, nbr, name, access, arg, len, descr) \ 229 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_STRING|(access), \ 230 arg, len, sysctl_handle_string, "A", descr) 231 232/* Oid for an int. If ptr is NULL, val is returned. */ 233#define SYSCTL_INT(parent, nbr, name, access, ptr, val, descr) \ 234 SYSCTL_OID(parent, nbr, name, CTLTYPE_INT|(access), \ 235 ptr, val, sysctl_handle_int, "I", descr) 236 237#define SYSCTL_ADD_INT(ctx, parent, nbr, name, access, ptr, val, descr) \ 238 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_INT|(access), \ 239 ptr, val, sysctl_handle_int, "I", descr) 240 241/* Oid for an unsigned int. If ptr is NULL, val is returned. */ 242#define SYSCTL_UINT(parent, nbr, name, access, ptr, val, descr) \ 243 SYSCTL_OID(parent, nbr, name, CTLTYPE_UINT|(access), \ 244 ptr, val, sysctl_handle_int, "IU", descr) 245 246#define SYSCTL_ADD_UINT(ctx, parent, nbr, name, access, ptr, val, descr) \ 247 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_UINT|(access), \ 248 ptr, val, sysctl_handle_int, "IU", descr) 249 250/* Oid for a long. The pointer must be non NULL. */ 251#define SYSCTL_LONG(parent, nbr, name, access, ptr, val, descr) \ 252 SYSCTL_OID(parent, nbr, name, CTLTYPE_LONG|(access), \ 253 ptr, val, sysctl_handle_long, "L", descr) 254 255#define SYSCTL_ADD_LONG(ctx, parent, nbr, name, access, ptr, descr) \ 256 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_LONG|(access), \ 257 ptr, 0, sysctl_handle_long, "L", descr) 258 259/* Oid for an unsigned long. The pointer must be non NULL. */ 260#define SYSCTL_ULONG(parent, nbr, name, access, ptr, val, descr) \ 261 SYSCTL_OID(parent, nbr, name, CTLTYPE_ULONG|(access), \ 262 ptr, val, sysctl_handle_long, "LU", descr) 263 264#define SYSCTL_ADD_ULONG(ctx, parent, nbr, name, access, ptr, descr) \ 265 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_ULONG|(access), \ 266 ptr, 0, sysctl_handle_long, "LU", descr) 267 268/* Oid for an opaque object. Specified by a pointer and a length. */ 269#define SYSCTL_OPAQUE(parent, nbr, name, access, ptr, len, fmt, descr) \ 270 SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|(access), \ 271 ptr, len, sysctl_handle_opaque, fmt, descr) 272 273#define SYSCTL_ADD_OPAQUE(ctx, parent, nbr, name, access, ptr, len, fmt, descr)\ 274 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_OPAQUE|(access), \ 275 ptr, len, sysctl_handle_opaque, fmt, descr) 276 277/* Oid for a struct. Specified by a pointer and a type. */ 278#define SYSCTL_STRUCT(parent, nbr, name, access, ptr, type, descr) \ 279 SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|(access), \ 280 ptr, sizeof(struct type), sysctl_handle_opaque, \ 281 "S," #type, descr) 282 283#define SYSCTL_ADD_STRUCT(ctx, parent, nbr, name, access, ptr, type, descr) \ 284 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_OPAQUE|(access), \ 285 ptr, sizeof(struct type), sysctl_handle_opaque, "S," #type, descr) 286 287/* Oid for a procedure. Specified by a pointer and an arg. */ 288#define SYSCTL_PROC(parent, nbr, name, access, ptr, arg, handler, fmt, descr) \ 289 SYSCTL_OID(parent, nbr, name, (access), \ 290 ptr, arg, handler, fmt, descr) 291 292#define SYSCTL_ADD_PROC(ctx, parent, nbr, name, access, ptr, arg, handler, fmt, descr) \ 293 sysctl_add_oid(ctx, parent, nbr, name, (access), \ 294 ptr, arg, handler, fmt, descr) 295 296#endif /* _KERNEL */ 297 298/* 299 * Top-level identifiers 300 */ 301#define CTL_UNSPEC 0 /* unused */ 302#define CTL_KERN 1 /* "high kernel": proc, limits */ 303#define CTL_VM 2 /* virtual memory */ 304#define CTL_VFS 3 /* filesystem, mount type is next */ 305#define CTL_NET 4 /* network, see socket.h */ 306#define CTL_DEBUG 5 /* debugging parameters */ 307#define CTL_HW 6 /* generic cpu/io */ 308#define CTL_MACHDEP 7 /* machine dependent */ 309#define CTL_USER 8 /* user-level */ 310#define CTL_P1003_1B 9 /* POSIX 1003.1B */ 311#define CTL_MAXID 10 /* number of valid top-level ids */ 312 313#define CTL_NAMES { \ 314 { 0, 0 }, \ 315 { "kern", CTLTYPE_NODE }, \ 316 { "vm", CTLTYPE_NODE }, \ 317 { "vfs", CTLTYPE_NODE }, \ 318 { "net", CTLTYPE_NODE }, \ 319 { "debug", CTLTYPE_NODE }, \ 320 { "hw", CTLTYPE_NODE }, \ 321 { "machdep", CTLTYPE_NODE }, \ 322 { "user", CTLTYPE_NODE }, \ 323 { "p1003_1b", CTLTYPE_NODE }, \ 324} 325 326/* 327 * CTL_KERN identifiers 328 */ 329#define KERN_OSTYPE 1 /* string: system version */ 330#define KERN_OSRELEASE 2 /* string: system release */ 331#define KERN_OSREV 3 /* int: system revision */ 332#define KERN_VERSION 4 /* string: compile time info */ 333#define KERN_MAXVNODES 5 /* int: max vnodes */ 334#define KERN_MAXPROC 6 /* int: max processes */ 335#define KERN_MAXFILES 7 /* int: max open files */ 336#define KERN_ARGMAX 8 /* int: max arguments to exec */ 337#define KERN_SECURELVL 9 /* int: system security level */ 338#define KERN_HOSTNAME 10 /* string: hostname */ 339#define KERN_HOSTID 11 /* int: host identifier */ 340#define KERN_CLOCKRATE 12 /* struct: struct clockrate */ 341#define KERN_VNODE 13 /* struct: vnode structures */ 342#define KERN_PROC 14 /* struct: process entries */ 343#define KERN_FILE 15 /* struct: file entries */ 344#define KERN_PROF 16 /* node: kernel profiling info */ 345#define KERN_POSIX1 17 /* int: POSIX.1 version */ 346#define KERN_NGROUPS 18 /* int: # of supplemental group ids */ 347#define KERN_JOB_CONTROL 19 /* int: is job control available */ 348#define KERN_SAVED_IDS 20 /* int: saved set-user/group-ID */ 349#define KERN_BOOTTIME 21 /* struct: time kernel was booted */ 350#define KERN_NISDOMAINNAME 22 /* string: YP domain name */ 351#define KERN_UPDATEINTERVAL 23 /* int: update process sleep time */ 352#define KERN_OSRELDATE 24 /* int: kernel release date */ 353#define KERN_NTP_PLL 25 /* node: NTP PLL control */ 354#define KERN_BOOTFILE 26 /* string: name of booted kernel */ 355#define KERN_MAXFILESPERPROC 27 /* int: max open files per proc */ 356#define KERN_MAXPROCPERUID 28 /* int: max processes per uid */ 357#define KERN_DUMPDEV 29 /* dev_t: device to dump on */ 358#define KERN_IPC 30 /* node: anything related to IPC */ 359#define KERN_DUMMY 31 /* unused */ 360#define KERN_PS_STRINGS 32 /* int: address of PS_STRINGS */ 361#define KERN_USRSTACK 33 /* int: address of USRSTACK */ 362#define KERN_LOGSIGEXIT 34 /* int: do we log sigexit procs? */ 363#define KERN_IOV_MAX 35 /* int: value of UIO_MAXIOV */ 364#define KERN_MAXID 36 /* number of valid kern ids */ 365 366#define CTL_KERN_NAMES { \ 367 { 0, 0 }, \ 368 { "ostype", CTLTYPE_STRING }, \ 369 { "osrelease", CTLTYPE_STRING }, \ 370 { "osrevision", CTLTYPE_INT }, \ 371 { "version", CTLTYPE_STRING }, \ 372 { "maxvnodes", CTLTYPE_INT }, \ 373 { "maxproc", CTLTYPE_INT }, \ 374 { "maxfiles", CTLTYPE_INT }, \ 375 { "argmax", CTLTYPE_INT }, \ 376 { "securelevel", CTLTYPE_INT }, \ 377 { "hostname", CTLTYPE_STRING }, \ 378 { "hostid", CTLTYPE_UINT }, \ 379 { "clockrate", CTLTYPE_STRUCT }, \ 380 { "vnode", CTLTYPE_STRUCT }, \ 381 { "proc", CTLTYPE_STRUCT }, \ 382 { "file", CTLTYPE_STRUCT }, \ 383 { "profiling", CTLTYPE_NODE }, \ 384 { "posix1version", CTLTYPE_INT }, \ 385 { "ngroups", CTLTYPE_INT }, \ 386 { "job_control", CTLTYPE_INT }, \ 387 { "saved_ids", CTLTYPE_INT }, \ 388 { "boottime", CTLTYPE_STRUCT }, \ 389 { "nisdomainname", CTLTYPE_STRING }, \ 390 { "update", CTLTYPE_INT }, \ 391 { "osreldate", CTLTYPE_INT }, \ 392 { "ntp_pll", CTLTYPE_NODE }, \ 393 { "bootfile", CTLTYPE_STRING }, \ 394 { "maxfilesperproc", CTLTYPE_INT }, \ 395 { "maxprocperuid", CTLTYPE_INT }, \ 396 { "ipc", CTLTYPE_NODE }, \ 397 { "dummy", CTLTYPE_INT }, \ 398 { "ps_strings", CTLTYPE_INT }, \ 399 { "usrstack", CTLTYPE_INT }, \ 400 { "logsigexit", CTLTYPE_INT }, \ 401 { "iov_max", CTLTYPE_INT }, \ 402} 403 404/* 405 * CTL_VFS identifiers 406 */ 407#define CTL_VFS_NAMES { \ 408 { "vfsconf", CTLTYPE_STRUCT }, \ 409} 410 411/* 412 * KERN_PROC subtypes 413 */ 414#define KERN_PROC_ALL 0 /* everything */ 415#define KERN_PROC_PID 1 /* by process id */ 416#define KERN_PROC_PGRP 2 /* by process group id */ 417#define KERN_PROC_SESSION 3 /* by session of pid */ 418#define KERN_PROC_TTY 4 /* by controlling tty */ 419#define KERN_PROC_UID 5 /* by effective uid */ 420#define KERN_PROC_RUID 6 /* by real uid */ 421#define KERN_PROC_ARGS 7 /* get/set arguments/proctitle */ 422#define KERN_PROC_PROC 8 /* only return procs */ 423#define KERN_PROC_SV_NAME 9 /* get syscall vector name */ 424 425/* 426 * KERN_IPC identifiers 427 */ 428#define KIPC_MAXSOCKBUF 1 /* int: max size of a socket buffer */ 429#define KIPC_SOCKBUF_WASTE 2 /* int: wastage factor in sockbuf */ 430#define KIPC_SOMAXCONN 3 /* int: max length of connection q */ 431#define KIPC_MAX_LINKHDR 4 /* int: max length of link header */ 432#define KIPC_MAX_PROTOHDR 5 /* int: max length of network header */ 433#define KIPC_MAX_HDR 6 /* int: max total length of headers */ 434#define KIPC_MAX_DATALEN 7 /* int: max length of data? */ 435 436/* 437 * CTL_HW identifiers 438 */ 439#define HW_MACHINE 1 /* string: machine class */ 440#define HW_MODEL 2 /* string: specific machine model */ 441#define HW_NCPU 3 /* int: number of cpus */ 442#define HW_BYTEORDER 4 /* int: machine byte order */ 443#define HW_PHYSMEM 5 /* int: total memory */ 444#define HW_USERMEM 6 /* int: non-kernel memory */ 445#define HW_PAGESIZE 7 /* int: software page size */ 446#define HW_DISKNAMES 8 /* strings: disk drive names */ 447#define HW_DISKSTATS 9 /* struct: diskstats[] */ 448#define HW_FLOATINGPT 10 /* int: has HW floating point? */ 449#define HW_MACHINE_ARCH 11 /* string: machine architecture */ 450#define HW_MAXID 12 /* number of valid hw ids */ 451 452#define CTL_HW_NAMES { \ 453 { 0, 0 }, \ 454 { "machine", CTLTYPE_STRING }, \ 455 { "model", CTLTYPE_STRING }, \ 456 { "ncpu", CTLTYPE_INT }, \ 457 { "byteorder", CTLTYPE_INT }, \ 458 { "physmem", CTLTYPE_ULONG }, \ 459 { "usermem", CTLTYPE_ULONG }, \ 460 { "pagesize", CTLTYPE_INT }, \ 461 { "disknames", CTLTYPE_STRUCT }, \ 462 { "diskstats", CTLTYPE_STRUCT }, \ 463 { "floatingpoint", CTLTYPE_INT }, \ 464} 465 466/* 467 * CTL_USER definitions 468 */ 469#define USER_CS_PATH 1 /* string: _CS_PATH */ 470#define USER_BC_BASE_MAX 2 /* int: BC_BASE_MAX */ 471#define USER_BC_DIM_MAX 3 /* int: BC_DIM_MAX */ 472#define USER_BC_SCALE_MAX 4 /* int: BC_SCALE_MAX */ 473#define USER_BC_STRING_MAX 5 /* int: BC_STRING_MAX */ 474#define USER_COLL_WEIGHTS_MAX 6 /* int: COLL_WEIGHTS_MAX */ 475#define USER_EXPR_NEST_MAX 7 /* int: EXPR_NEST_MAX */ 476#define USER_LINE_MAX 8 /* int: LINE_MAX */ 477#define USER_RE_DUP_MAX 9 /* int: RE_DUP_MAX */ 478#define USER_POSIX2_VERSION 10 /* int: POSIX2_VERSION */ 479#define USER_POSIX2_C_BIND 11 /* int: POSIX2_C_BIND */ 480#define USER_POSIX2_C_DEV 12 /* int: POSIX2_C_DEV */ 481#define USER_POSIX2_CHAR_TERM 13 /* int: POSIX2_CHAR_TERM */ 482#define USER_POSIX2_FORT_DEV 14 /* int: POSIX2_FORT_DEV */ 483#define USER_POSIX2_FORT_RUN 15 /* int: POSIX2_FORT_RUN */ 484#define USER_POSIX2_LOCALEDEF 16 /* int: POSIX2_LOCALEDEF */ 485#define USER_POSIX2_SW_DEV 17 /* int: POSIX2_SW_DEV */ 486#define USER_POSIX2_UPE 18 /* int: POSIX2_UPE */ 487#define USER_STREAM_MAX 19 /* int: POSIX2_STREAM_MAX */ 488#define USER_TZNAME_MAX 20 /* int: POSIX2_TZNAME_MAX */ 489#define USER_MAXID 21 /* number of valid user ids */ 490 491#define CTL_USER_NAMES { \ 492 { 0, 0 }, \ 493 { "cs_path", CTLTYPE_STRING }, \ 494 { "bc_base_max", CTLTYPE_INT }, \ 495 { "bc_dim_max", CTLTYPE_INT }, \ 496 { "bc_scale_max", CTLTYPE_INT }, \ 497 { "bc_string_max", CTLTYPE_INT }, \ 498 { "coll_weights_max", CTLTYPE_INT }, \ 499 { "expr_nest_max", CTLTYPE_INT }, \ 500 { "line_max", CTLTYPE_INT }, \ 501 { "re_dup_max", CTLTYPE_INT }, \ 502 { "posix2_version", CTLTYPE_INT }, \ 503 { "posix2_c_bind", CTLTYPE_INT }, \ 504 { "posix2_c_dev", CTLTYPE_INT }, \ 505 { "posix2_char_term", CTLTYPE_INT }, \ 506 { "posix2_fort_dev", CTLTYPE_INT }, \ 507 { "posix2_fort_run", CTLTYPE_INT }, \ 508 { "posix2_localedef", CTLTYPE_INT }, \ 509 { "posix2_sw_dev", CTLTYPE_INT }, \ 510 { "posix2_upe", CTLTYPE_INT }, \ 511 { "stream_max", CTLTYPE_INT }, \ 512 { "tzname_max", CTLTYPE_INT }, \ 513} 514 515#define CTL_P1003_1B_ASYNCHRONOUS_IO 1 /* boolean */ 516#define CTL_P1003_1B_MAPPED_FILES 2 /* boolean */ 517#define CTL_P1003_1B_MEMLOCK 3 /* boolean */ 518#define CTL_P1003_1B_MEMLOCK_RANGE 4 /* boolean */ 519#define CTL_P1003_1B_MEMORY_PROTECTION 5 /* boolean */ 520#define CTL_P1003_1B_MESSAGE_PASSING 6 /* boolean */ 521#define CTL_P1003_1B_PRIORITIZED_IO 7 /* boolean */ 522#define CTL_P1003_1B_PRIORITY_SCHEDULING 8 /* boolean */ 523#define CTL_P1003_1B_REALTIME_SIGNALS 9 /* boolean */ 524#define CTL_P1003_1B_SEMAPHORES 10 /* boolean */ 525#define CTL_P1003_1B_FSYNC 11 /* boolean */ 526#define CTL_P1003_1B_SHARED_MEMORY_OBJECTS 12 /* boolean */ 527#define CTL_P1003_1B_SYNCHRONIZED_IO 13 /* boolean */ 528#define CTL_P1003_1B_TIMERS 14 /* boolean */ 529#define CTL_P1003_1B_AIO_LISTIO_MAX 15 /* int */ 530#define CTL_P1003_1B_AIO_MAX 16 /* int */ 531#define CTL_P1003_1B_AIO_PRIO_DELTA_MAX 17 /* int */ 532#define CTL_P1003_1B_DELAYTIMER_MAX 18 /* int */ 533#define CTL_P1003_1B_MQ_OPEN_MAX 19 /* int */ 534#define CTL_P1003_1B_PAGESIZE 20 /* int */ 535#define CTL_P1003_1B_RTSIG_MAX 21 /* int */ 536#define CTL_P1003_1B_SEM_NSEMS_MAX 22 /* int */ 537#define CTL_P1003_1B_SEM_VALUE_MAX 23 /* int */ 538#define CTL_P1003_1B_SIGQUEUE_MAX 24 /* int */ 539#define CTL_P1003_1B_TIMER_MAX 25 /* int */ 540 541#define CTL_P1003_1B_MAXID 26 542 543#define CTL_P1003_1B_NAMES { \ 544 { 0, 0 }, \ 545 { "asynchronous_io", CTLTYPE_INT }, \ 546 { "mapped_files", CTLTYPE_INT }, \ 547 { "memlock", CTLTYPE_INT }, \ 548 { "memlock_range", CTLTYPE_INT }, \ 549 { "memory_protection", CTLTYPE_INT }, \ 550 { "message_passing", CTLTYPE_INT }, \ 551 { "prioritized_io", CTLTYPE_INT }, \ 552 { "priority_scheduling", CTLTYPE_INT }, \ 553 { "realtime_signals", CTLTYPE_INT }, \ 554 { "semaphores", CTLTYPE_INT }, \ 555 { "fsync", CTLTYPE_INT }, \ 556 { "shared_memory_objects", CTLTYPE_INT }, \ 557 { "synchronized_io", CTLTYPE_INT }, \ 558 { "timers", CTLTYPE_INT }, \ 559 { "aio_listio_max", CTLTYPE_INT }, \ 560 { "aio_max", CTLTYPE_INT }, \ 561 { "aio_prio_delta_max", CTLTYPE_INT }, \ 562 { "delaytimer_max", CTLTYPE_INT }, \ 563 { "mq_open_max", CTLTYPE_INT }, \ 564 { "pagesize", CTLTYPE_INT }, \ 565 { "rtsig_max", CTLTYPE_INT }, \ 566 { "nsems_max", CTLTYPE_INT }, \ 567 { "sem_value_max", CTLTYPE_INT }, \ 568 { "sigqueue_max", CTLTYPE_INT }, \ 569 { "timer_max", CTLTYPE_INT }, \ 570} 571 572#ifdef _KERNEL 573 574/* 575 * Declare some common oids. 576 */ 577extern struct sysctl_oid_list sysctl__children; 578SYSCTL_DECL(_kern); 579SYSCTL_DECL(_sysctl); 580SYSCTL_DECL(_vm); 581SYSCTL_DECL(_vfs); 582SYSCTL_DECL(_net); 583SYSCTL_DECL(_debug); 584SYSCTL_DECL(_debug_sizeof); 585SYSCTL_DECL(_hw); 586SYSCTL_DECL(_machdep); 587SYSCTL_DECL(_user); 588SYSCTL_DECL(_compat); 589 590extern char machine[]; 591extern char osrelease[]; 592extern char ostype[]; 593extern char kern_ident[]; 594 595/* Dynamic oid handling */ 596struct sysctl_oid *sysctl_add_oid(struct sysctl_ctx_list *clist, 597 struct sysctl_oid_list *parent, int nbr, const char *name, 598 int kind, void *arg1, int arg2, 599 int (*handler) (SYSCTL_HANDLER_ARGS), 600 const char *fmt, const char *descr); 601int sysctl_remove_oid(struct sysctl_oid *oidp, int del, int recurse); 602int sysctl_ctx_init(struct sysctl_ctx_list *clist); 603int sysctl_ctx_free(struct sysctl_ctx_list *clist); 604struct sysctl_ctx_entry *sysctl_ctx_entry_add(struct sysctl_ctx_list *clist, 605 struct sysctl_oid *oidp); 606struct sysctl_ctx_entry *sysctl_ctx_entry_find(struct sysctl_ctx_list *clist, 607 struct sysctl_oid *oidp); 608int sysctl_ctx_entry_del(struct sysctl_ctx_list *clist, 609 struct sysctl_oid *oidp); 610 611int kernel_sysctl(struct thread *td, int *name, u_int namelen, void *old, 612 size_t *oldlenp, void *new, size_t newlen, 613 size_t *retval); 614int kernel_sysctlbyname(struct thread *td, char *name, 615 void *old, size_t *oldlenp, void *new, size_t newlen, 616 size_t *retval); 617int userland_sysctl(struct thread *td, int *name, u_int namelen, void *old, 618 size_t *oldlenp, int inkernel, void *new, size_t newlen, 619 size_t *retval); 620int sysctl_find_oid(int *name, u_int namelen, struct sysctl_oid **noid, 621 int *nindx, struct sysctl_req *req); 622void sysctl_wire_old_buffer(struct sysctl_req *req, size_t len); 623 624#else /* !_KERNEL */ 625#include <sys/cdefs.h> 626 627__BEGIN_DECLS 628int sysctl(int *, u_int, void *, size_t *, void *, size_t); 629int sysctlbyname(const char *, void *, size_t *, void *, size_t); 630int sysctlnametomib(const char *, int *, size_t *); 631__END_DECLS 632#endif /* _KERNEL */ 633 634#endif /* !_SYS_SYSCTL_H_ */ 635