sysctl.h revision 83366
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 83366 2001-09-12 08:38:13Z julian $ 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 90/* 91 * USE THIS instead of a hardwired number from the categories below 92 * to get dynamically assigned sysctl entries using the linker-set 93 * technology. This is the way nearly all new sysctl variables should 94 * be implemented. 95 * e.g. SYSCTL_INT(_parent, OID_AUTO, name, CTLFLAG_RW, &variable, 0, ""); 96 */ 97#define OID_AUTO (-1) 98 99/* 100 * The starting number for dynamically-assigned entries. WARNING! 101 * ALL static sysctl entries should have numbers LESS than this! 102 */ 103#define CTL_AUTO_START 0x100 104 105#ifdef _KERNEL 106#define SYSCTL_HANDLER_ARGS struct sysctl_oid *oidp, void *arg1, int arg2, \ 107 struct sysctl_req *req 108 109/* 110 * This describes the access space for a sysctl request. This is needed 111 * so that we can use the interface from the kernel or from user-space. 112 */ 113struct sysctl_req { 114 struct proc *p; /* used for access checking */ 115 int lock; 116 void *oldptr; 117 size_t oldlen; 118 size_t oldidx; 119 int (*oldfunc)(struct sysctl_req *, const void *, size_t); 120 void *newptr; 121 size_t newlen; 122 size_t newidx; 123 int (*newfunc)(struct sysctl_req *, void *, size_t); 124}; 125 126SLIST_HEAD(sysctl_oid_list, sysctl_oid); 127 128/* 129 * This describes one "oid" in the MIB tree. Potentially more nodes can 130 * be hidden behind it, expanded by the handler. 131 */ 132struct sysctl_oid { 133 struct sysctl_oid_list *oid_parent; 134 SLIST_ENTRY(sysctl_oid) oid_link; 135 int oid_number; 136 int oid_kind; 137 void *oid_arg1; 138 int oid_arg2; 139 const char *oid_name; 140 int (*oid_handler)(SYSCTL_HANDLER_ARGS); 141 const char *oid_fmt; 142 int oid_refcnt; 143}; 144 145#define SYSCTL_IN(r, p, l) (r->newfunc)(r, p, l) 146#define SYSCTL_OUT(r, p, l) (r->oldfunc)(r, p, l) 147 148int sysctl_handle_int(SYSCTL_HANDLER_ARGS); 149int sysctl_handle_long(SYSCTL_HANDLER_ARGS); 150int sysctl_handle_intptr(SYSCTL_HANDLER_ARGS); 151int sysctl_handle_string(SYSCTL_HANDLER_ARGS); 152int sysctl_handle_opaque(SYSCTL_HANDLER_ARGS); 153 154/* 155 * These functions are used to add/remove an oid from the mib. 156 */ 157void sysctl_register_oid(struct sysctl_oid *oidp); 158void sysctl_unregister_oid(struct sysctl_oid *oidp); 159 160/* Declare a static oid to allow child oids to be added to it. */ 161#define SYSCTL_DECL(name) \ 162 extern struct sysctl_oid_list sysctl_##name##_children 163 164/* Hide these in macros */ 165#define SYSCTL_CHILDREN(oid_ptr) (struct sysctl_oid_list *) \ 166 (oid_ptr)->oid_arg1 167#define SYSCTL_STATIC_CHILDREN(oid_name) \ 168 (&sysctl_##oid_name##_children) 169 170/* === Structs and macros related to context handling === */ 171 172/* All dynamically created sysctls can be tracked in a context list. */ 173struct sysctl_ctx_entry { 174 struct sysctl_oid *entry; 175 TAILQ_ENTRY(sysctl_ctx_entry) link; 176}; 177 178TAILQ_HEAD(sysctl_ctx_list, sysctl_ctx_entry); 179 180/* This constructs a "raw" MIB oid. */ 181#define SYSCTL_OID(parent, nbr, name, kind, a1, a2, handler, fmt, descr) \ 182 static struct sysctl_oid sysctl__##parent##_##name = { \ 183 &sysctl_##parent##_children, { 0 }, \ 184 nbr, kind, a1, a2, #name, handler, fmt, 0 }; \ 185 DATA_SET(sysctl_set, sysctl__##parent##_##name); 186 187#define SYSCTL_ADD_OID(ctx, parent, nbr, name, kind, a1, a2, handler, fmt, descr) \ 188 sysctl_add_oid(ctx, parent, nbr, name, kind, a1, a2, handler, fmt, descr); 189 190/* This constructs a node from which other oids can hang. */ 191#define SYSCTL_NODE(parent, nbr, name, access, handler, descr) \ 192 struct sysctl_oid_list sysctl_##parent##_##name##_children; \ 193 SYSCTL_OID(parent, nbr, name, CTLTYPE_NODE|access, \ 194 (void*)&sysctl_##parent##_##name##_children, 0, handler, \ 195 "N", descr); 196 197#define SYSCTL_ADD_NODE(ctx, parent, nbr, name, access, handler, descr) \ 198 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_NODE|access, \ 199 0, 0, handler, "N", descr); 200 201/* Oid for a string. len can be 0 to indicate '\0' termination. */ 202#define SYSCTL_STRING(parent, nbr, name, access, arg, len, descr) \ 203 SYSCTL_OID(parent, nbr, name, CTLTYPE_STRING|access, \ 204 arg, len, sysctl_handle_string, "A", descr) 205 206#define SYSCTL_ADD_STRING(ctx, parent, nbr, name, access, arg, len, descr) \ 207 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_STRING|access, \ 208 arg, len, sysctl_handle_string, "A", descr); 209 210/* Oid for an int. If ptr is NULL, val is returned. */ 211#define SYSCTL_INT(parent, nbr, name, access, ptr, val, descr) \ 212 SYSCTL_OID(parent, nbr, name, CTLTYPE_INT|access, \ 213 ptr, val, sysctl_handle_int, "I", descr) 214 215#define SYSCTL_ADD_INT(ctx, parent, nbr, name, access, ptr, val, descr) \ 216 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_INT|access, \ 217 ptr, val, sysctl_handle_int, "I", descr); 218 219/* Oid for an unsigned int. If ptr is NULL, val is returned. */ 220#define SYSCTL_UINT(parent, nbr, name, access, ptr, val, descr) \ 221 SYSCTL_OID(parent, nbr, name, CTLTYPE_UINT|access, \ 222 ptr, val, sysctl_handle_int, "IU", descr) 223 224#define SYSCTL_ADD_UINT(ctx, parent, nbr, name, access, ptr, val, descr) \ 225 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_UINT|access, \ 226 ptr, val, sysctl_handle_int, "IU", descr); 227 228/* Oid for a long. The pointer must be non NULL. */ 229#define SYSCTL_LONG(parent, nbr, name, access, ptr, val, descr) \ 230 SYSCTL_OID(parent, nbr, name, CTLTYPE_LONG|access, \ 231 ptr, val, sysctl_handle_long, "L", descr) 232 233#define SYSCTL_ADD_LONG(ctx, parent, nbr, name, access, ptr, descr) \ 234 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_LONG|access, \ 235 ptr, 0, sysctl_handle_long, "L", descr); 236 237/* Oid for a long. The pointer must be non NULL. */ 238#define SYSCTL_ULONG(parent, nbr, name, access, ptr, val, descr) \ 239 SYSCTL_OID(parent, nbr, name, CTLTYPE_ULONG|access, \ 240 ptr, val, sysctl_handle_long, "LU", descr) 241 242#define SYSCTL_ADD_ULONG(ctx, parent, nbr, name, access, ptr, descr) \ 243 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_ULONG|access, \ 244 ptr, 0, sysctl_handle_long, "LU", descr); 245 246/* Oid for an opaque object. Specified by a pointer and a length. */ 247#define SYSCTL_OPAQUE(parent, nbr, name, access, ptr, len, fmt, descr) \ 248 SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|access, \ 249 ptr, len, sysctl_handle_opaque, fmt, descr) 250 251#define SYSCTL_ADD_OPAQUE(ctx, parent, nbr, name, access, ptr, len, fmt, descr)\ 252 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_OPAQUE|access, \ 253 ptr, len, sysctl_handle_opaque, fmt, descr); 254 255/* Oid for a struct. Specified by a pointer and a type. */ 256#define SYSCTL_STRUCT(parent, nbr, name, access, ptr, type, descr) \ 257 SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|access, \ 258 ptr, sizeof(struct type), sysctl_handle_opaque, \ 259 "S," #type, descr) 260 261#define SYSCTL_ADD_STRUCT(ctx, parent, nbr, name, access, ptr, type, descr) \ 262 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_OPAQUE|access, \ 263 ptr, sizeof(struct type), sysctl_handle_opaque, "S," #type, descr); 264 265/* Oid for a procedure. Specified by a pointer and an arg. */ 266#define SYSCTL_PROC(parent, nbr, name, access, ptr, arg, handler, fmt, descr) \ 267 SYSCTL_OID(parent, nbr, name, access, \ 268 ptr, arg, handler, fmt, descr) 269 270#define SYSCTL_ADD_PROC(ctx, parent, nbr, name, access, ptr, arg, handler, fmt, descr) \ 271 sysctl_add_oid(ctx, parent, nbr, name, access, \ 272 ptr, arg, handler, fmt, descr); 273 274#endif /* _KERNEL */ 275 276/* 277 * Top-level identifiers 278 */ 279#define CTL_UNSPEC 0 /* unused */ 280#define CTL_KERN 1 /* "high kernel": proc, limits */ 281#define CTL_VM 2 /* virtual memory */ 282#define CTL_VFS 3 /* file system, mount type is next */ 283#define CTL_NET 4 /* network, see socket.h */ 284#define CTL_DEBUG 5 /* debugging parameters */ 285#define CTL_HW 6 /* generic cpu/io */ 286#define CTL_MACHDEP 7 /* machine dependent */ 287#define CTL_USER 8 /* user-level */ 288#define CTL_P1003_1B 9 /* POSIX 1003.1B */ 289#define CTL_MAXID 10 /* number of valid top-level ids */ 290 291#define CTL_NAMES { \ 292 { 0, 0 }, \ 293 { "kern", CTLTYPE_NODE }, \ 294 { "vm", CTLTYPE_NODE }, \ 295 { "vfs", CTLTYPE_NODE }, \ 296 { "net", CTLTYPE_NODE }, \ 297 { "debug", CTLTYPE_NODE }, \ 298 { "hw", CTLTYPE_NODE }, \ 299 { "machdep", CTLTYPE_NODE }, \ 300 { "user", CTLTYPE_NODE }, \ 301 { "p1003_1b", CTLTYPE_NODE }, \ 302} 303 304/* 305 * CTL_KERN identifiers 306 */ 307#define KERN_OSTYPE 1 /* string: system version */ 308#define KERN_OSRELEASE 2 /* string: system release */ 309#define KERN_OSREV 3 /* int: system revision */ 310#define KERN_VERSION 4 /* string: compile time info */ 311#define KERN_MAXVNODES 5 /* int: max vnodes */ 312#define KERN_MAXPROC 6 /* int: max processes */ 313#define KERN_MAXFILES 7 /* int: max open files */ 314#define KERN_ARGMAX 8 /* int: max arguments to exec */ 315#define KERN_SECURELVL 9 /* int: system security level */ 316#define KERN_HOSTNAME 10 /* string: hostname */ 317#define KERN_HOSTID 11 /* int: host identifier */ 318#define KERN_CLOCKRATE 12 /* struct: struct clockrate */ 319#define KERN_VNODE 13 /* struct: vnode structures */ 320#define KERN_PROC 14 /* struct: process entries */ 321#define KERN_FILE 15 /* struct: file entries */ 322#define KERN_PROF 16 /* node: kernel profiling info */ 323#define KERN_POSIX1 17 /* int: POSIX.1 version */ 324#define KERN_NGROUPS 18 /* int: # of supplemental group ids */ 325#define KERN_JOB_CONTROL 19 /* int: is job control available */ 326#define KERN_SAVED_IDS 20 /* int: saved set-user/group-ID */ 327#define KERN_BOOTTIME 21 /* struct: time kernel was booted */ 328#define KERN_NISDOMAINNAME 22 /* string: YP domain name */ 329#define KERN_UPDATEINTERVAL 23 /* int: update process sleep time */ 330#define KERN_OSRELDATE 24 /* int: OS release date */ 331#define KERN_NTP_PLL 25 /* node: NTP PLL control */ 332#define KERN_BOOTFILE 26 /* string: name of booted kernel */ 333#define KERN_MAXFILESPERPROC 27 /* int: max open files per proc */ 334#define KERN_MAXPROCPERUID 28 /* int: max processes per uid */ 335#define KERN_DUMPDEV 29 /* dev_t: device to dump on */ 336#define KERN_IPC 30 /* node: anything related to IPC */ 337#define KERN_DUMMY 31 /* unused */ 338#define KERN_PS_STRINGS 32 /* int: address of PS_STRINGS */ 339#define KERN_USRSTACK 33 /* int: address of USRSTACK */ 340#define KERN_LOGSIGEXIT 34 /* int: do we log sigexit procs? */ 341#define KERN_IOV_MAX 35 /* int: value of UIO_MAXIOV */ 342#define KERN_MAXID 36 /* number of valid kern ids */ 343 344#define CTL_KERN_NAMES { \ 345 { 0, 0 }, \ 346 { "ostype", CTLTYPE_STRING }, \ 347 { "osrelease", CTLTYPE_STRING }, \ 348 { "osrevision", CTLTYPE_INT }, \ 349 { "version", CTLTYPE_STRING }, \ 350 { "maxvnodes", CTLTYPE_INT }, \ 351 { "maxproc", CTLTYPE_INT }, \ 352 { "maxfiles", CTLTYPE_INT }, \ 353 { "argmax", CTLTYPE_INT }, \ 354 { "securelevel", CTLTYPE_INT }, \ 355 { "hostname", CTLTYPE_STRING }, \ 356 { "hostid", CTLTYPE_UINT }, \ 357 { "clockrate", CTLTYPE_STRUCT }, \ 358 { "vnode", CTLTYPE_STRUCT }, \ 359 { "proc", CTLTYPE_STRUCT }, \ 360 { "file", CTLTYPE_STRUCT }, \ 361 { "profiling", CTLTYPE_NODE }, \ 362 { "posix1version", CTLTYPE_INT }, \ 363 { "ngroups", CTLTYPE_INT }, \ 364 { "job_control", CTLTYPE_INT }, \ 365 { "saved_ids", CTLTYPE_INT }, \ 366 { "boottime", CTLTYPE_STRUCT }, \ 367 { "nisdomainname", CTLTYPE_STRING }, \ 368 { "update", CTLTYPE_INT }, \ 369 { "osreldate", CTLTYPE_INT }, \ 370 { "ntp_pll", CTLTYPE_NODE }, \ 371 { "bootfile", CTLTYPE_STRING }, \ 372 { "maxfilesperproc", CTLTYPE_INT }, \ 373 { "maxprocperuid", CTLTYPE_INT }, \ 374 { "dumpdev", CTLTYPE_STRUCT }, /* we lie; don't print as int */ \ 375 { "ipc", CTLTYPE_NODE }, \ 376 { "dummy", CTLTYPE_INT }, \ 377 { "ps_strings", CTLTYPE_INT }, \ 378 { "usrstack", CTLTYPE_INT }, \ 379 { "logsigexit", CTLTYPE_INT }, \ 380 { "iov_max", CTLTYPE_INT }, \ 381} 382 383/* 384 * CTL_VFS identifiers 385 */ 386#define CTL_VFS_NAMES { \ 387 { "vfsconf", CTLTYPE_STRUCT }, \ 388} 389 390/* 391 * KERN_PROC subtypes 392 */ 393#define KERN_PROC_ALL 0 /* everything */ 394#define KERN_PROC_PID 1 /* by process id */ 395#define KERN_PROC_PGRP 2 /* by process group id */ 396#define KERN_PROC_SESSION 3 /* by session of pid */ 397#define KERN_PROC_TTY 4 /* by controlling tty */ 398#define KERN_PROC_UID 5 /* by effective uid */ 399#define KERN_PROC_RUID 6 /* by real uid */ 400#define KERN_PROC_ARGS 7 /* get/set arguments/proctitle */ 401 402/* 403 * KERN_IPC identifiers 404 */ 405#define KIPC_MAXSOCKBUF 1 /* int: max size of a socket buffer */ 406#define KIPC_SOCKBUF_WASTE 2 /* int: wastage factor in sockbuf */ 407#define KIPC_SOMAXCONN 3 /* int: max length of connection q */ 408#define KIPC_MAX_LINKHDR 4 /* int: max length of link header */ 409#define KIPC_MAX_PROTOHDR 5 /* int: max length of network header */ 410#define KIPC_MAX_HDR 6 /* int: max total length of headers */ 411#define KIPC_MAX_DATALEN 7 /* int: max length of data? */ 412 413/* 414 * CTL_HW identifiers 415 */ 416#define HW_MACHINE 1 /* string: machine class */ 417#define HW_MODEL 2 /* string: specific machine model */ 418#define HW_NCPU 3 /* int: number of cpus */ 419#define HW_BYTEORDER 4 /* int: machine byte order */ 420#define HW_PHYSMEM 5 /* int: total memory */ 421#define HW_USERMEM 6 /* int: non-kernel memory */ 422#define HW_PAGESIZE 7 /* int: software page size */ 423#define HW_DISKNAMES 8 /* strings: disk drive names */ 424#define HW_DISKSTATS 9 /* struct: diskstats[] */ 425#define HW_FLOATINGPT 10 /* int: has HW floating point? */ 426#define HW_MACHINE_ARCH 11 /* string: machine architecture */ 427#define HW_MAXID 12 /* number of valid hw ids */ 428 429#define CTL_HW_NAMES { \ 430 { 0, 0 }, \ 431 { "machine", CTLTYPE_STRING }, \ 432 { "model", CTLTYPE_STRING }, \ 433 { "ncpu", CTLTYPE_INT }, \ 434 { "byteorder", CTLTYPE_INT }, \ 435 { "physmem", CTLTYPE_ULONG }, \ 436 { "usermem", CTLTYPE_ULONG }, \ 437 { "pagesize", CTLTYPE_INT }, \ 438 { "disknames", CTLTYPE_STRUCT }, \ 439 { "diskstats", CTLTYPE_STRUCT }, \ 440 { "floatingpoint", CTLTYPE_INT }, \ 441} 442 443/* 444 * CTL_USER definitions 445 */ 446#define USER_CS_PATH 1 /* string: _CS_PATH */ 447#define USER_BC_BASE_MAX 2 /* int: BC_BASE_MAX */ 448#define USER_BC_DIM_MAX 3 /* int: BC_DIM_MAX */ 449#define USER_BC_SCALE_MAX 4 /* int: BC_SCALE_MAX */ 450#define USER_BC_STRING_MAX 5 /* int: BC_STRING_MAX */ 451#define USER_COLL_WEIGHTS_MAX 6 /* int: COLL_WEIGHTS_MAX */ 452#define USER_EXPR_NEST_MAX 7 /* int: EXPR_NEST_MAX */ 453#define USER_LINE_MAX 8 /* int: LINE_MAX */ 454#define USER_RE_DUP_MAX 9 /* int: RE_DUP_MAX */ 455#define USER_POSIX2_VERSION 10 /* int: POSIX2_VERSION */ 456#define USER_POSIX2_C_BIND 11 /* int: POSIX2_C_BIND */ 457#define USER_POSIX2_C_DEV 12 /* int: POSIX2_C_DEV */ 458#define USER_POSIX2_CHAR_TERM 13 /* int: POSIX2_CHAR_TERM */ 459#define USER_POSIX2_FORT_DEV 14 /* int: POSIX2_FORT_DEV */ 460#define USER_POSIX2_FORT_RUN 15 /* int: POSIX2_FORT_RUN */ 461#define USER_POSIX2_LOCALEDEF 16 /* int: POSIX2_LOCALEDEF */ 462#define USER_POSIX2_SW_DEV 17 /* int: POSIX2_SW_DEV */ 463#define USER_POSIX2_UPE 18 /* int: POSIX2_UPE */ 464#define USER_STREAM_MAX 19 /* int: POSIX2_STREAM_MAX */ 465#define USER_TZNAME_MAX 20 /* int: POSIX2_TZNAME_MAX */ 466#define USER_MAXID 21 /* number of valid user ids */ 467 468#define CTL_USER_NAMES { \ 469 { 0, 0 }, \ 470 { "cs_path", CTLTYPE_STRING }, \ 471 { "bc_base_max", CTLTYPE_INT }, \ 472 { "bc_dim_max", CTLTYPE_INT }, \ 473 { "bc_scale_max", CTLTYPE_INT }, \ 474 { "bc_string_max", CTLTYPE_INT }, \ 475 { "coll_weights_max", CTLTYPE_INT }, \ 476 { "expr_nest_max", CTLTYPE_INT }, \ 477 { "line_max", CTLTYPE_INT }, \ 478 { "re_dup_max", CTLTYPE_INT }, \ 479 { "posix2_version", CTLTYPE_INT }, \ 480 { "posix2_c_bind", CTLTYPE_INT }, \ 481 { "posix2_c_dev", CTLTYPE_INT }, \ 482 { "posix2_char_term", CTLTYPE_INT }, \ 483 { "posix2_fort_dev", CTLTYPE_INT }, \ 484 { "posix2_fort_run", CTLTYPE_INT }, \ 485 { "posix2_localedef", CTLTYPE_INT }, \ 486 { "posix2_sw_dev", CTLTYPE_INT }, \ 487 { "posix2_upe", CTLTYPE_INT }, \ 488 { "stream_max", CTLTYPE_INT }, \ 489 { "tzname_max", CTLTYPE_INT }, \ 490} 491 492#define CTL_P1003_1B_ASYNCHRONOUS_IO 1 /* boolean */ 493#define CTL_P1003_1B_MAPPED_FILES 2 /* boolean */ 494#define CTL_P1003_1B_MEMLOCK 3 /* boolean */ 495#define CTL_P1003_1B_MEMLOCK_RANGE 4 /* boolean */ 496#define CTL_P1003_1B_MEMORY_PROTECTION 5 /* boolean */ 497#define CTL_P1003_1B_MESSAGE_PASSING 6 /* boolean */ 498#define CTL_P1003_1B_PRIORITIZED_IO 7 /* boolean */ 499#define CTL_P1003_1B_PRIORITY_SCHEDULING 8 /* boolean */ 500#define CTL_P1003_1B_REALTIME_SIGNALS 9 /* boolean */ 501#define CTL_P1003_1B_SEMAPHORES 10 /* boolean */ 502#define CTL_P1003_1B_FSYNC 11 /* boolean */ 503#define CTL_P1003_1B_SHARED_MEMORY_OBJECTS 12 /* boolean */ 504#define CTL_P1003_1B_SYNCHRONIZED_IO 13 /* boolean */ 505#define CTL_P1003_1B_TIMERS 14 /* boolean */ 506#define CTL_P1003_1B_AIO_LISTIO_MAX 15 /* int */ 507#define CTL_P1003_1B_AIO_MAX 16 /* int */ 508#define CTL_P1003_1B_AIO_PRIO_DELTA_MAX 17 /* int */ 509#define CTL_P1003_1B_DELAYTIMER_MAX 18 /* int */ 510#define CTL_P1003_1B_MQ_OPEN_MAX 19 /* int */ 511#define CTL_P1003_1B_PAGESIZE 20 /* int */ 512#define CTL_P1003_1B_RTSIG_MAX 21 /* int */ 513#define CTL_P1003_1B_SEM_NSEMS_MAX 22 /* int */ 514#define CTL_P1003_1B_SEM_VALUE_MAX 23 /* int */ 515#define CTL_P1003_1B_SIGQUEUE_MAX 24 /* int */ 516#define CTL_P1003_1B_TIMER_MAX 25 /* int */ 517 518#define CTL_P1003_1B_MAXID 26 519 520#define CTL_P1003_1B_NAMES { \ 521 { 0, 0 }, \ 522 { "asynchronous_io", CTLTYPE_INT }, \ 523 { "mapped_files", CTLTYPE_INT }, \ 524 { "memlock", CTLTYPE_INT }, \ 525 { "memlock_range", CTLTYPE_INT }, \ 526 { "memory_protection", CTLTYPE_INT }, \ 527 { "message_passing", CTLTYPE_INT }, \ 528 { "prioritized_io", CTLTYPE_INT }, \ 529 { "priority_scheduling", CTLTYPE_INT }, \ 530 { "realtime_signals", CTLTYPE_INT }, \ 531 { "semaphores", CTLTYPE_INT }, \ 532 { "fsync", CTLTYPE_INT }, \ 533 { "shared_memory_objects", CTLTYPE_INT }, \ 534 { "synchronized_io", CTLTYPE_INT }, \ 535 { "timers", CTLTYPE_INT }, \ 536 { "aio_listio_max", CTLTYPE_INT }, \ 537 { "aio_max", CTLTYPE_INT }, \ 538 { "aio_prio_delta_max", CTLTYPE_INT }, \ 539 { "delaytimer_max", CTLTYPE_INT }, \ 540 { "mq_open_max", CTLTYPE_INT }, \ 541 { "pagesize", CTLTYPE_INT }, \ 542 { "rtsig_max", CTLTYPE_INT }, \ 543 { "nsems_max", CTLTYPE_INT }, \ 544 { "sem_value_max", CTLTYPE_INT }, \ 545 { "sigqueue_max", CTLTYPE_INT }, \ 546 { "timer_max", CTLTYPE_INT }, \ 547} 548 549#ifdef _KERNEL 550 551/* 552 * Declare some common oids. 553 */ 554extern struct sysctl_oid_list sysctl__children; 555SYSCTL_DECL(_kern); 556SYSCTL_DECL(_sysctl); 557SYSCTL_DECL(_vm); 558SYSCTL_DECL(_vfs); 559SYSCTL_DECL(_net); 560SYSCTL_DECL(_debug); 561SYSCTL_DECL(_hw); 562SYSCTL_DECL(_machdep); 563SYSCTL_DECL(_user); 564SYSCTL_DECL(_compat); 565 566extern char machine[]; 567extern char osrelease[]; 568extern char ostype[]; 569 570/* Dynamic oid handling */ 571struct sysctl_oid *sysctl_add_oid(struct sysctl_ctx_list *clist, 572 struct sysctl_oid_list *parent, int nbr, const char *name, 573 int kind, void *arg1, int arg2, 574 int (*handler) (SYSCTL_HANDLER_ARGS), 575 const char *fmt, const char *descr); 576int sysctl_remove_oid(struct sysctl_oid *oidp, int del, int recurse); 577int sysctl_ctx_init(struct sysctl_ctx_list *clist); 578int sysctl_ctx_free(struct sysctl_ctx_list *clist); 579struct sysctl_ctx_entry *sysctl_ctx_entry_add(struct sysctl_ctx_list *clist, 580 struct sysctl_oid *oidp); 581struct sysctl_ctx_entry *sysctl_ctx_entry_find(struct sysctl_ctx_list *clist, 582 struct sysctl_oid *oidp); 583int sysctl_ctx_entry_del(struct sysctl_ctx_list *clist, 584 struct sysctl_oid *oidp); 585 586int kernel_sysctl(struct thread *td, int *name, u_int namelen, void *old, 587 size_t *oldlenp, void *new, size_t newlen, 588 size_t *retval); 589int kernel_sysctlbyname(struct thread *td, char *name, 590 void *old, size_t *oldlenp, void *new, size_t newlen, 591 size_t *retval); 592int userland_sysctl(struct thread *td, int *name, u_int namelen, void *old, 593 size_t *oldlenp, int inkernel, void *new, size_t newlen, 594 size_t *retval); 595int sysctl_find_oid(int *name, u_int namelen, struct sysctl_oid **noid, 596 int *nindx, struct sysctl_req *req); 597 598#else /* !_KERNEL */ 599#include <sys/cdefs.h> 600 601__BEGIN_DECLS 602int sysctl __P((int *, u_int, void *, size_t *, void *, size_t)); 603int sysctlbyname __P((const char *, void *, size_t *, void *, size_t)); 604int sysctlnametomib __P((const char *, int *, size_t *)); 605__END_DECLS 606#endif /* _KERNEL */ 607 608#endif /* !_SYS_SYSCTL_H_ */ 609