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: src/sys/sys/sysctl.h,v 1.81.2.10 2003/05/01 22:48:09 trhodes Exp $ 38 * $DragonFly: src/sys/sys/sysctl.h,v 1.12 2004/11/09 17:52:45 joerg Exp $ 39 */ 40 41 #ifndef _SYS_SYSCTL_H_ 42 #define _SYS_SYSCTL_H_ 43 44 #include <sys/_posix.h> 45 #include <sys/queue.h> 46 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 */ 65 struct 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 #ifdef _KERNEL 100 #define SYSCTL_HANDLER_ARGS struct sysctl_oid *oidp, void *arg1, int arg2, \ 101 struct sysctl_req *req 102 103 /* 104 * This describes the access space for a sysctl request. This is needed 105 * so that we can use the interface from the kernel or from user-space. 106 */ 107 struct sysctl_req { 108 struct thread *td; 109 int lock; 110 void *oldptr; 111 size_t oldlen; 112 size_t oldidx; 113 int (*oldfunc)(struct sysctl_req *, const void *, size_t); 114 void *newptr; 115 size_t newlen; 116 size_t newidx; 117 int (*newfunc)(struct sysctl_req *, void *, size_t); 118 }; 119 120 SLIST_HEAD(sysctl_oid_list, sysctl_oid); 121 122 /* 123 * This describes one "oid" in the MIB tree. Potentially more nodes can 124 * be hidden behind it, expanded by the handler. 125 */ 126 struct sysctl_oid { 127 struct sysctl_oid_list *oid_parent; 128 SLIST_ENTRY(sysctl_oid) oid_link; 129 int oid_number; 130 int oid_kind; 131 void *oid_arg1; 132 int oid_arg2; 133 const char *oid_name; 134 int (*oid_handler)(SYSCTL_HANDLER_ARGS); 135 const char *oid_fmt; 136 int oid_refcnt; 137 const char *oid_descr; 138 }; 139 140 #define SYSCTL_IN(r, p, l) (r->newfunc)(r, p, l) 141 #define SYSCTL_OUT(r, p, l) (r->oldfunc)(r, p, l) 142 143 int sysctl_handle_int(SYSCTL_HANDLER_ARGS); 144 int sysctl_handle_long(SYSCTL_HANDLER_ARGS); 145 int sysctl_handle_quad(SYSCTL_HANDLER_ARGS); 146 int sysctl_handle_intptr(SYSCTL_HANDLER_ARGS); 147 int sysctl_handle_string(SYSCTL_HANDLER_ARGS); 148 int sysctl_handle_opaque(SYSCTL_HANDLER_ARGS); 149 150 /* 151 * These functions are used to add/remove an oid from the mib. 152 */ 153 void sysctl_register_oid(struct sysctl_oid *oidp); 154 void sysctl_unregister_oid(struct sysctl_oid *oidp); 155 156 /* Declare a static oid to allow child oids to be added to it. */ 157 #define SYSCTL_DECL(name) \ 158 extern struct sysctl_oid_list sysctl_##name##_children 159 160 /* Hide these in macros */ 161 #define SYSCTL_CHILDREN(oid_ptr) (struct sysctl_oid_list *) \ 162 (oid_ptr)->oid_arg1 163 #define SYSCTL_STATIC_CHILDREN(oid_name) \ 164 (&sysctl_##oid_name##_children) 165 166 /* === Structs and macros related to context handling === */ 167 168 /* All dynamically created sysctls can be tracked in a context list. */ 169 struct sysctl_ctx_entry { 170 struct sysctl_oid *entry; 171 TAILQ_ENTRY(sysctl_ctx_entry) link; 172 }; 173 174 TAILQ_HEAD(sysctl_ctx_list, sysctl_ctx_entry); 175 176 /* This constructs a "raw" MIB oid. */ 177 #define SYSCTL_OID(parent, nbr, name, kind, a1, a2, handler, fmt, descr) \ 178 static struct sysctl_oid sysctl__##parent##_##name = { \ 179 &sysctl_##parent##_children, { 0 }, \ 180 nbr, kind, a1, a2, #name, handler, fmt, 0, descr }; \ 181 DATA_SET(sysctl_set, sysctl__##parent##_##name); 182 183 #define SYSCTL_ADD_OID(ctx, parent, nbr, name, kind, a1, a2, handler, fmt, descr) \ 184 sysctl_add_oid(ctx, parent, nbr, name, kind, a1, a2, handler, fmt, descr); 185 186 /* This constructs a node from which other oids can hang. */ 187 #define SYSCTL_NODE(parent, nbr, name, access, handler, descr) \ 188 struct sysctl_oid_list sysctl_##parent##_##name##_children; \ 189 SYSCTL_OID(parent, nbr, name, CTLTYPE_NODE|access, \ 190 (void*)&sysctl_##parent##_##name##_children, 0, handler, \ 191 "N", descr); 192 193 #define SYSCTL_ADD_NODE(ctx, parent, nbr, name, access, handler, descr) \ 194 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_NODE|access, \ 195 0, 0, handler, "N", descr); 196 197 /* Oid for a string. len can be 0 to indicate '\0' termination. */ 198 #define SYSCTL_STRING(parent, nbr, name, access, arg, len, descr) \ 199 SYSCTL_OID(parent, nbr, name, CTLTYPE_STRING|access, \ 200 arg, len, sysctl_handle_string, "A", descr) 201 202 #define SYSCTL_ADD_STRING(ctx, parent, nbr, name, access, arg, len, descr) \ 203 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_STRING|access, \ 204 arg, len, sysctl_handle_string, "A", descr); 205 206 /* Oid for an int. If ptr is NULL, val is returned. */ 207 #define SYSCTL_INT(parent, nbr, name, access, ptr, val, descr) \ 208 SYSCTL_OID(parent, nbr, name, CTLTYPE_INT|access, \ 209 ptr, val, sysctl_handle_int, "I", descr) 210 211 /* Oid for an int. If ptr is NULL, val is returned. */ 212 #define SYSCTL_QUAD(parent, nbr, name, access, ptr, val, descr) \ 213 SYSCTL_OID(parent, nbr, name, CTLTYPE_QUAD|access, \ 214 ptr, val, sysctl_handle_quad, "Q", descr) 215 216 #define SYSCTL_ADD_INT(ctx, parent, nbr, name, access, ptr, val, descr) \ 217 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_INT|access, \ 218 ptr, val, sysctl_handle_int, "I", descr); 219 220 /* Oid for an unsigned int. If ptr is NULL, val is returned. */ 221 #define SYSCTL_UINT(parent, nbr, name, access, ptr, val, descr) \ 222 SYSCTL_OID(parent, nbr, name, CTLTYPE_UINT|access, \ 223 ptr, val, sysctl_handle_int, "IU", descr) 224 225 #define SYSCTL_ADD_UINT(ctx, parent, nbr, name, access, ptr, val, descr) \ 226 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_UINT|access, \ 227 ptr, val, sysctl_handle_int, "IU", descr); 228 229 /* Oid for a long. The pointer must be non NULL. */ 230 #define SYSCTL_LONG(parent, nbr, name, access, ptr, val, descr) \ 231 SYSCTL_OID(parent, nbr, name, CTLTYPE_LONG|access, \ 232 ptr, val, sysctl_handle_long, "L", descr) 233 234 #define SYSCTL_ADD_LONG(ctx, parent, nbr, name, access, ptr, descr) \ 235 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_LONG|access, \ 236 ptr, 0, sysctl_handle_long, "L", descr); 237 238 /* Oid for a long. The pointer must be non NULL. */ 239 #define SYSCTL_ULONG(parent, nbr, name, access, ptr, val, descr) \ 240 SYSCTL_OID(parent, nbr, name, CTLTYPE_ULONG|access, \ 241 ptr, val, sysctl_handle_long, "LU", descr) 242 243 #define SYSCTL_ADD_ULONG(ctx, parent, nbr, name, access, ptr, descr) \ 244 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_ULONG|access, \ 245 ptr, 0, sysctl_handle_long, "LU", descr); 246 247 /* Oid for an opaque object. Specified by a pointer and a length. */ 248 #define SYSCTL_OPAQUE(parent, nbr, name, access, ptr, len, fmt, descr) \ 249 SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|access, \ 250 ptr, len, sysctl_handle_opaque, fmt, descr) 251 252 #define SYSCTL_ADD_OPAQUE(ctx, parent, nbr, name, access, ptr, len, fmt, descr)\ 253 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_OPAQUE|access, \ 254 ptr, len, sysctl_handle_opaque, fmt, descr); 255 256 /* Oid for a struct. Specified by a pointer and a type. */ 257 #define SYSCTL_STRUCT(parent, nbr, name, access, ptr, type, descr) \ 258 SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|access, \ 259 ptr, sizeof(struct type), sysctl_handle_opaque, \ 260 "S," #type, descr) 261 262 #define SYSCTL_ADD_STRUCT(ctx, parent, nbr, name, access, ptr, type, descr) \ 263 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_OPAQUE|access, \ 264 ptr, sizeof(struct type), sysctl_handle_opaque, "S," #type, descr); 265 266 /* Oid for a procedure. Specified by a pointer and an arg. */ 267 #define SYSCTL_PROC(parent, nbr, name, access, ptr, arg, handler, fmt, descr) \ 268 SYSCTL_OID(parent, nbr, name, access, \ 269 ptr, arg, handler, fmt, descr) 270 271 #define SYSCTL_ADD_PROC(ctx, parent, nbr, name, access, ptr, arg, handler, fmt, descr) \ 272 sysctl_add_oid(ctx, parent, nbr, name, access, \ 273 ptr, arg, handler, fmt, descr); 274 275 #endif /* _KERNEL */ 276 277 /* 278 * Top-level identifiers 279 */ 280 #define CTL_UNSPEC 0 /* unused */ 281 #define CTL_KERN 1 /* "high kernel": proc, limits */ 282 #define CTL_VM 2 /* virtual memory */ 283 #define CTL_VFS 3 /* file system, mount type is next */ 284 #define CTL_NET 4 /* network, see socket.h */ 285 #define CTL_DEBUG 5 /* debugging parameters */ 286 #define CTL_HW 6 /* generic cpu/io */ 287 #define CTL_MACHDEP 7 /* machine dependent */ 288 #define CTL_USER 8 /* user-level */ 289 #define CTL_P1003_1B 9 /* POSIX 1003.1B */ 290 #define CTL_LWKT 10 /* light weight kernel threads */ 291 #define CTL_MAXID 11 /* number of valid top-level ids */ 292 293 #define CTL_NAMES { \ 294 { 0, 0 }, \ 295 { "kern", CTLTYPE_NODE }, \ 296 { "vm", CTLTYPE_NODE }, \ 297 { "vfs", CTLTYPE_NODE }, \ 298 { "net", CTLTYPE_NODE }, \ 299 { "debug", CTLTYPE_NODE }, \ 300 { "hw", CTLTYPE_NODE }, \ 301 { "machdep", CTLTYPE_NODE }, \ 302 { "user", CTLTYPE_NODE }, \ 303 { "p1003_1b", CTLTYPE_NODE }, \ 304 { "lwkt", CTLTYPE_NODE }, \ 305 } 306 307 /* 308 * CTL_KERN identifiers 309 */ 310 #define KERN_OSTYPE 1 /* string: system version */ 311 #define KERN_OSRELEASE 2 /* string: system release */ 312 #define KERN_OSREV 3 /* int: system revision */ 313 #define KERN_VERSION 4 /* string: compile time info */ 314 #define KERN_MAXVNODES 5 /* int: max vnodes */ 315 #define KERN_MAXPROC 6 /* int: max processes */ 316 #define KERN_MAXFILES 7 /* int: max open files */ 317 #define KERN_ARGMAX 8 /* int: max arguments to exec */ 318 #define KERN_SECURELVL 9 /* int: system security level */ 319 #define KERN_HOSTNAME 10 /* string: hostname */ 320 #define KERN_HOSTID 11 /* int: host identifier */ 321 #define KERN_CLOCKRATE 12 /* struct: struct clockrate */ 322 #define KERN_VNODE 13 /* struct: vnode structures */ 323 #define KERN_PROC 14 /* struct: process entries */ 324 #define KERN_FILE 15 /* struct: file entries */ 325 #define KERN_PROF 16 /* node: kernel profiling info */ 326 #define KERN_POSIX1 17 /* int: POSIX.1 version */ 327 #define KERN_NGROUPS 18 /* int: # of supplemental group ids */ 328 #define KERN_JOB_CONTROL 19 /* int: is job control available */ 329 #define KERN_SAVED_IDS 20 /* int: saved set-user/group-ID */ 330 #define KERN_BOOTTIME 21 /* struct: time kernel was booted */ 331 #define KERN_NISDOMAINNAME 22 /* string: YP domain name */ 332 #define KERN_UPDATEINTERVAL 23 /* int: update process sleep time */ 333 #define KERN_OSRELDATE 24 /* int: OS release date */ 334 #define KERN_NTP_PLL 25 /* node: NTP PLL control */ 335 #define KERN_BOOTFILE 26 /* string: name of booted kernel */ 336 #define KERN_MAXFILESPERPROC 27 /* int: max open files per proc */ 337 #define KERN_MAXPROCPERUID 28 /* int: max processes per uid */ 338 #define KERN_DUMPDEV 29 /* dev_t: device to dump on */ 339 #define KERN_IPC 30 /* node: anything related to IPC */ 340 #define KERN_DUMMY 31 /* unused */ 341 #define KERN_PS_STRINGS 32 /* int: address of PS_STRINGS */ 342 #define KERN_USRSTACK 33 /* int: address of USRSTACK */ 343 #define KERN_LOGSIGEXIT 34 /* int: do we log sigexit procs? */ 344 #define KERN_IOV_MAX 35 /* int: value of UIO_MAXIOV */ 345 #define KERN_MAXPOSIXLOCKSPERUID 36 /* int: max POSIX locks per uid */ 346 #define KERN_MAXID 37 /* number of valid kern ids */ 347 348 #define CTL_KERN_NAMES { \ 349 { 0, 0 }, \ 350 { "ostype", CTLTYPE_STRING }, \ 351 { "osrelease", CTLTYPE_STRING }, \ 352 { "osrevision", CTLTYPE_INT }, \ 353 { "version", CTLTYPE_STRING }, \ 354 { "maxvnodes", CTLTYPE_INT }, \ 355 { "maxproc", CTLTYPE_INT }, \ 356 { "maxfiles", CTLTYPE_INT }, \ 357 { "argmax", CTLTYPE_INT }, \ 358 { "securelevel", CTLTYPE_INT }, \ 359 { "hostname", CTLTYPE_STRING }, \ 360 { "hostid", CTLTYPE_UINT }, \ 361 { "clockrate", CTLTYPE_STRUCT }, \ 362 { "vnode", CTLTYPE_STRUCT }, \ 363 { "proc", CTLTYPE_STRUCT }, \ 364 { "file", CTLTYPE_STRUCT }, \ 365 { "profiling", CTLTYPE_NODE }, \ 366 { "posix1version", CTLTYPE_INT }, \ 367 { "ngroups", CTLTYPE_INT }, \ 368 { "job_control", CTLTYPE_INT }, \ 369 { "saved_ids", CTLTYPE_INT }, \ 370 { "boottime", CTLTYPE_STRUCT }, \ 371 { "nisdomainname", CTLTYPE_STRING }, \ 372 { "update", CTLTYPE_INT }, \ 373 { "osreldate", CTLTYPE_INT }, \ 374 { "ntp_pll", CTLTYPE_NODE }, \ 375 { "bootfile", CTLTYPE_STRING }, \ 376 { "maxfilesperproc", CTLTYPE_INT }, \ 377 { "maxprocperuid", CTLTYPE_INT }, \ 378 { "maxposixlocksperuid", CTLTYPE_INT }, \ 379 { "dumpdev", CTLTYPE_STRUCT }, /* we lie; don't print as int */ \ 380 { "ipc", CTLTYPE_NODE }, \ 381 { "dummy", CTLTYPE_INT }, \ 382 { "ps_strings", CTLTYPE_INT }, \ 383 { "usrstack", CTLTYPE_INT }, \ 384 { "logsigexit", CTLTYPE_INT }, \ 385 { "iov_max", CTLTYPE_INT }, \ 386 } 387 388 /* 389 * CTL_VFS identifiers 390 */ 391 #define CTL_VFS_NAMES { \ 392 { "vfsconf", CTLTYPE_STRUCT }, \ 393 } 394 395 /* 396 * KERN_PROC subtypes 397 */ 398 #define KERN_PROC_ALL 0 /* everything */ 399 #define KERN_PROC_PID 1 /* by process id */ 400 #define KERN_PROC_PGRP 2 /* by process group id */ 401 #define KERN_PROC_SESSION 3 /* by session of pid */ 402 #define KERN_PROC_TTY 4 /* by controlling tty */ 403 #define KERN_PROC_UID 5 /* by effective uid */ 404 #define KERN_PROC_RUID 6 /* by real uid */ 405 #define KERN_PROC_ARGS 7 /* get/set arguments/proctitle */ 406 407 /* 408 * KERN_IPC identifiers 409 */ 410 #define KIPC_MAXSOCKBUF 1 /* int: max size of a socket buffer */ 411 #define KIPC_SOCKBUF_WASTE 2 /* int: wastage factor in sockbuf */ 412 #define KIPC_SOMAXCONN 3 /* int: max length of connection q */ 413 #define KIPC_MAX_LINKHDR 4 /* int: max length of link header */ 414 #define KIPC_MAX_PROTOHDR 5 /* int: max length of network header */ 415 #define KIPC_MAX_HDR 6 /* int: max total length of headers */ 416 #define KIPC_MAX_DATALEN 7 /* int: max length of data? */ 417 #define KIPC_MBSTAT 8 /* struct: mbuf usage statistics */ 418 #define KIPC_NMBCLUSTERS 9 /* int: maximum mbuf clusters */ 419 420 /* 421 * CTL_HW identifiers 422 */ 423 #define HW_MACHINE 1 /* string: machine class */ 424 #define HW_MODEL 2 /* string: specific machine model */ 425 #define HW_NCPU 3 /* int: number of cpus */ 426 #define HW_BYTEORDER 4 /* int: machine byte order */ 427 #define HW_PHYSMEM 5 /* int: total memory */ 428 #define HW_USERMEM 6 /* int: non-kernel memory */ 429 #define HW_PAGESIZE 7 /* int: software page size */ 430 #define HW_DISKNAMES 8 /* strings: disk drive names */ 431 #define HW_DISKSTATS 9 /* struct: diskstats[] */ 432 #define HW_FLOATINGPT 10 /* int: has HW floating point? */ 433 #define HW_MACHINE_ARCH 11 /* string: machine architecture */ 434 #define HW_MAXID 12 /* number of valid hw ids */ 435 436 #define CTL_HW_NAMES { \ 437 { 0, 0 }, \ 438 { "machine", CTLTYPE_STRING }, \ 439 { "model", CTLTYPE_STRING }, \ 440 { "ncpu", CTLTYPE_INT }, \ 441 { "byteorder", CTLTYPE_INT }, \ 442 { "physmem", CTLTYPE_UINT }, \ 443 { "usermem", CTLTYPE_UINT }, \ 444 { "pagesize", CTLTYPE_INT }, \ 445 { "disknames", CTLTYPE_STRUCT }, \ 446 { "diskstats", CTLTYPE_STRUCT }, \ 447 { "floatingpoint", CTLTYPE_INT }, \ 448 } 449 450 /* 451 * CTL_USER definitions 452 */ 453 #define USER_CS_PATH 1 /* string: _CS_PATH */ 454 #define USER_BC_BASE_MAX 2 /* int: BC_BASE_MAX */ 455 #define USER_BC_DIM_MAX 3 /* int: BC_DIM_MAX */ 456 #define USER_BC_SCALE_MAX 4 /* int: BC_SCALE_MAX */ 457 #define USER_BC_STRING_MAX 5 /* int: BC_STRING_MAX */ 458 #define USER_COLL_WEIGHTS_MAX 6 /* int: COLL_WEIGHTS_MAX */ 459 #define USER_EXPR_NEST_MAX 7 /* int: EXPR_NEST_MAX */ 460 #define USER_LINE_MAX 8 /* int: LINE_MAX */ 461 #define USER_RE_DUP_MAX 9 /* int: RE_DUP_MAX */ 462 #define USER_POSIX2_VERSION 10 /* int: POSIX2_VERSION */ 463 #define USER_POSIX2_C_BIND 11 /* int: POSIX2_C_BIND */ 464 #define USER_POSIX2_C_DEV 12 /* int: POSIX2_C_DEV */ 465 #define USER_POSIX2_CHAR_TERM 13 /* int: POSIX2_CHAR_TERM */ 466 #define USER_POSIX2_FORT_DEV 14 /* int: POSIX2_FORT_DEV */ 467 #define USER_POSIX2_FORT_RUN 15 /* int: POSIX2_FORT_RUN */ 468 #define USER_POSIX2_LOCALEDEF 16 /* int: POSIX2_LOCALEDEF */ 469 #define USER_POSIX2_SW_DEV 17 /* int: POSIX2_SW_DEV */ 470 #define USER_POSIX2_UPE 18 /* int: POSIX2_UPE */ 471 #define USER_STREAM_MAX 19 /* int: POSIX2_STREAM_MAX */ 472 #define USER_TZNAME_MAX 20 /* int: POSIX2_TZNAME_MAX */ 473 #define USER_MAXID 21 /* number of valid user ids */ 474 475 #define CTL_USER_NAMES { \ 476 { 0, 0 }, \ 477 { "cs_path", CTLTYPE_STRING }, \ 478 { "bc_base_max", CTLTYPE_INT }, \ 479 { "bc_dim_max", CTLTYPE_INT }, \ 480 { "bc_scale_max", CTLTYPE_INT }, \ 481 { "bc_string_max", CTLTYPE_INT }, \ 482 { "coll_weights_max", CTLTYPE_INT }, \ 483 { "expr_nest_max", CTLTYPE_INT }, \ 484 { "line_max", CTLTYPE_INT }, \ 485 { "re_dup_max", CTLTYPE_INT }, \ 486 { "posix2_version", CTLTYPE_INT }, \ 487 { "posix2_c_bind", CTLTYPE_INT }, \ 488 { "posix2_c_dev", CTLTYPE_INT }, \ 489 { "posix2_char_term", CTLTYPE_INT }, \ 490 { "posix2_fort_dev", CTLTYPE_INT }, \ 491 { "posix2_fort_run", CTLTYPE_INT }, \ 492 { "posix2_localedef", CTLTYPE_INT }, \ 493 { "posix2_sw_dev", CTLTYPE_INT }, \ 494 { "posix2_upe", CTLTYPE_INT }, \ 495 { "stream_max", CTLTYPE_INT }, \ 496 { "tzname_max", CTLTYPE_INT }, \ 497 } 498 499 #define CTL_P1003_1B_ASYNCHRONOUS_IO 1 /* boolean */ 500 #define CTL_P1003_1B_MAPPED_FILES 2 /* boolean */ 501 #define CTL_P1003_1B_MEMLOCK 3 /* boolean */ 502 #define CTL_P1003_1B_MEMLOCK_RANGE 4 /* boolean */ 503 #define CTL_P1003_1B_MEMORY_PROTECTION 5 /* boolean */ 504 #define CTL_P1003_1B_MESSAGE_PASSING 6 /* boolean */ 505 #define CTL_P1003_1B_PRIORITIZED_IO 7 /* boolean */ 506 #define CTL_P1003_1B_PRIORITY_SCHEDULING 8 /* boolean */ 507 #define CTL_P1003_1B_REALTIME_SIGNALS 9 /* boolean */ 508 #define CTL_P1003_1B_SEMAPHORES 10 /* boolean */ 509 #define CTL_P1003_1B_FSYNC 11 /* boolean */ 510 #define CTL_P1003_1B_SHARED_MEMORY_OBJECTS 12 /* boolean */ 511 #define CTL_P1003_1B_SYNCHRONIZED_IO 13 /* boolean */ 512 #define CTL_P1003_1B_TIMERS 14 /* boolean */ 513 #define CTL_P1003_1B_AIO_LISTIO_MAX 15 /* int */ 514 #define CTL_P1003_1B_AIO_MAX 16 /* int */ 515 #define CTL_P1003_1B_AIO_PRIO_DELTA_MAX 17 /* int */ 516 #define CTL_P1003_1B_DELAYTIMER_MAX 18 /* int */ 517 #define CTL_P1003_1B_MQ_OPEN_MAX 19 /* int */ 518 #define CTL_P1003_1B_PAGESIZE 20 /* int */ 519 #define CTL_P1003_1B_RTSIG_MAX 21 /* int */ 520 #define CTL_P1003_1B_SEM_NSEMS_MAX 22 /* int */ 521 #define CTL_P1003_1B_SEM_VALUE_MAX 23 /* int */ 522 #define CTL_P1003_1B_SIGQUEUE_MAX 24 /* int */ 523 #define CTL_P1003_1B_TIMER_MAX 25 /* int */ 524 525 #define CTL_P1003_1B_MAXID 26 526 527 #define CTL_P1003_1B_NAMES { \ 528 { 0, 0 }, \ 529 { "asynchronous_io", CTLTYPE_INT }, \ 530 { "mapped_files", CTLTYPE_INT }, \ 531 { "memlock", CTLTYPE_INT }, \ 532 { "memlock_range", CTLTYPE_INT }, \ 533 { "memory_protection", CTLTYPE_INT }, \ 534 { "message_passing", CTLTYPE_INT }, \ 535 { "prioritized_io", CTLTYPE_INT }, \ 536 { "priority_scheduling", CTLTYPE_INT }, \ 537 { "realtime_signals", CTLTYPE_INT }, \ 538 { "semaphores", CTLTYPE_INT }, \ 539 { "fsync", CTLTYPE_INT }, \ 540 { "shared_memory_objects", CTLTYPE_INT }, \ 541 { "synchronized_io", CTLTYPE_INT }, \ 542 { "timers", CTLTYPE_INT }, \ 543 { "aio_listio_max", CTLTYPE_INT }, \ 544 { "aio_max", CTLTYPE_INT }, \ 545 { "aio_prio_delta_max", CTLTYPE_INT }, \ 546 { "delaytimer_max", CTLTYPE_INT }, \ 547 { "mq_open_max", CTLTYPE_INT }, \ 548 { "pagesize", CTLTYPE_INT }, \ 549 { "rtsig_max", CTLTYPE_INT }, \ 550 { "nsems_max", CTLTYPE_INT }, \ 551 { "sem_value_max", CTLTYPE_INT }, \ 552 { "sigqueue_max", CTLTYPE_INT }, \ 553 { "timer_max", CTLTYPE_INT }, \ 554 } 555 556 #ifdef _KERNEL 557 558 /* 559 * Declare some common oids. 560 */ 561 extern struct sysctl_oid_list sysctl__children; 562 SYSCTL_DECL(_kern); 563 SYSCTL_DECL(_sysctl); 564 SYSCTL_DECL(_vm); 565 SYSCTL_DECL(_vfs); 566 SYSCTL_DECL(_net); 567 SYSCTL_DECL(_debug); 568 SYSCTL_DECL(_hw); 569 SYSCTL_DECL(_machdep); 570 SYSCTL_DECL(_user); 571 SYSCTL_DECL(_compat); 572 SYSCTL_DECL(_lwkt); 573 574 /* 575 * Common second-level oids. 576 */ 577 SYSCTL_DECL(_kern_ipc); 578 579 extern char machine[]; 580 extern char osrelease[]; 581 extern char ostype[]; 582 extern char kern_ident[]; 583 584 /* Dynamic oid handling */ 585 struct sysctl_oid *sysctl_add_oid(struct sysctl_ctx_list *clist, 586 struct sysctl_oid_list *parent, int nbr, const char *name, 587 int kind, void *arg1, int arg2, 588 int (*handler) (SYSCTL_HANDLER_ARGS), 589 const char *fmt, const char *descr); 590 int sysctl_remove_oid(struct sysctl_oid *oidp, int del, int recurse); 591 int sysctl_ctx_init(struct sysctl_ctx_list *clist); 592 int sysctl_ctx_free(struct sysctl_ctx_list *clist); 593 struct sysctl_ctx_entry *sysctl_ctx_entry_add(struct sysctl_ctx_list *clist, 594 struct sysctl_oid *oidp); 595 struct sysctl_ctx_entry *sysctl_ctx_entry_find(struct sysctl_ctx_list *clist, 596 struct sysctl_oid *oidp); 597 int sysctl_ctx_entry_del(struct sysctl_ctx_list *clist, 598 struct sysctl_oid *oidp); 599 600 int kernel_sysctl(int *name, u_int namelen, void *old, 601 size_t *oldlenp, void *new, size_t newlen, 602 size_t *retval); 603 int kernel_sysctlbyname(char *name, 604 void *old, size_t *oldlenp, void *new, size_t newlen, 605 size_t *retval); 606 int userland_sysctl(int *name, u_int namelen, void *old, 607 size_t *oldlenp, int inkernel, void *new, size_t newlen, 608 size_t *retval); 609 int sysctl_find_oid(int *name, u_int namelen, struct sysctl_oid **noid, 610 int *nindx, struct sysctl_req *req); 611 612 #else /* !_KERNEL */ 613 #include <sys/cdefs.h> 614 615 __BEGIN_DECLS 616 int sysctl (int *, u_int, void *, size_t *, void *, size_t); 617 int sysctlbyname (const char *, void *, size_t *, void *, size_t); 618 int sysctlnametomib (const char *, int *, size_t *); 619 __END_DECLS 620 #endif /* _KERNEL */ 621 622 #endif /* !_SYS_SYSCTL_H_ */ 623