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 1.25 2007/10/02 12:57:01 hasso Exp $ 39 */ 40 41 #ifndef _SYS_SYSCTL_H_ 42 #define _SYS_SYSCTL_H_ 43 44 #ifndef _SYS_TYPES_H_ 45 #include <sys/types.h> 46 #endif 47 #ifndef _SYS__POSIX_H_ 48 #include <sys/_posix.h> 49 #endif 50 #ifndef _SYS_QUEUE_H_ 51 #include <sys/queue.h> 52 #endif 53 54 /* 55 * Definitions for sysctl call. The sysctl call uses a hierarchical name 56 * for objects that can be examined or modified. The name is expressed as 57 * a sequence of integers. Like a file path name, the meaning of each 58 * component depends on its place in the hierarchy. The top-level and kern 59 * identifiers are defined here, and other identifiers are defined in the 60 * respective subsystem header files. 61 */ 62 63 #define CTL_MAXNAME 12 /* largest number of components supported */ 64 65 /* 66 * Each subsystem defined by sysctl defines a list of variables 67 * for that subsystem. Each name is either a node with further 68 * levels defined below it, or it is a leaf of some particular 69 * type given below. Each sysctl level defines a set of name/type 70 * pairs to be used by sysctl(1) in manipulating the subsystem. 71 */ 72 struct ctlname { 73 char *ctl_name; /* subsystem name */ 74 int ctl_type; /* type of name */ 75 }; 76 77 #define CTLTYPE 0xf /* Mask for the type */ 78 #define CTLTYPE_NODE 1 /* name is a node */ 79 #define CTLTYPE_INT 2 /* name describes an integer */ 80 #define CTLTYPE_STRING 3 /* name describes a string */ 81 #define CTLTYPE_QUAD 4 /* name describes a 64-bit number */ 82 #define CTLTYPE_OPAQUE 5 /* name describes a structure */ 83 #define CTLTYPE_STRUCT CTLTYPE_OPAQUE /* name describes a structure */ 84 #define CTLTYPE_UINT 6 /* name describes an unsigned integer */ 85 #define CTLTYPE_LONG 7 /* name describes a long */ 86 #define CTLTYPE_ULONG 8 /* name describes an unsigned long */ 87 #define CTLTYPE_UQUAD 9 /* name describes an unsigned 64-bit number */ 88 89 #define CTLFLAG_RD 0x80000000 /* Allow reads of variable */ 90 #define CTLFLAG_WR 0x40000000 /* Allow writes to the variable */ 91 #define CTLFLAG_RW (CTLFLAG_RD|CTLFLAG_WR) 92 #define CTLFLAG_NOLOCK 0x20000000 /* XXX Don't Lock */ 93 #define CTLFLAG_ANYBODY 0x10000000 /* All users can set this var */ 94 #define CTLFLAG_SECURE 0x08000000 /* Permit set only if securelevel<=0 */ 95 #define CTLFLAG_PRISON 0x04000000 /* Prisoned roots can fiddle */ 96 #define CTLFLAG_DYN 0x02000000 /* Dynamic oid - can be freed */ 97 98 /* 99 * USE THIS instead of a hardwired number from the categories below 100 * to get dynamically assigned sysctl entries using the linker-set 101 * technology. This is the way nearly all new sysctl variables should 102 * be implemented. 103 * e.g. SYSCTL_INT(_parent, OID_AUTO, name, CTLFLAG_RW, &variable, 0, ""); 104 */ 105 #define OID_AUTO (-1) 106 107 #ifdef _KERNEL 108 #define SYSCTL_HANDLER_ARGS struct sysctl_oid *oidp, void *arg1, int arg2, \ 109 struct sysctl_req *req 110 111 /* 112 * This describes the access space for a sysctl request. This is needed 113 * so that we can use the interface from the kernel or from user-space. 114 */ 115 struct sysctl_req { 116 struct thread *td; 117 int lock; 118 void *oldptr; 119 size_t oldlen; 120 size_t oldidx; 121 int (*oldfunc)(struct sysctl_req *, const void *, size_t); 122 void *newptr; 123 size_t newlen; 124 size_t newidx; 125 int (*newfunc)(struct sysctl_req *, void *, size_t); 126 }; 127 128 SLIST_HEAD(sysctl_oid_list, sysctl_oid); 129 130 /* 131 * This describes one "oid" in the MIB tree. Potentially more nodes can 132 * be hidden behind it, expanded by the handler. 133 */ 134 struct sysctl_oid { 135 struct sysctl_oid_list *oid_parent; 136 SLIST_ENTRY(sysctl_oid) oid_link; 137 int oid_number; 138 int oid_kind; 139 void *oid_arg1; 140 int oid_arg2; 141 const char *oid_name; 142 int (*oid_handler)(SYSCTL_HANDLER_ARGS); 143 const char *oid_fmt; 144 int oid_refcnt; 145 const char *oid_descr; 146 }; 147 148 #define SYSCTL_IN(r, p, l) (r->newfunc)(r, p, l) 149 #define SYSCTL_OUT(r, p, l) (r->oldfunc)(r, p, l) 150 151 int sysctl_handle_int(SYSCTL_HANDLER_ARGS); 152 int sysctl_handle_long(SYSCTL_HANDLER_ARGS); 153 int sysctl_handle_quad(SYSCTL_HANDLER_ARGS); 154 int sysctl_handle_intptr(SYSCTL_HANDLER_ARGS); 155 int sysctl_handle_string(SYSCTL_HANDLER_ARGS); 156 int sysctl_handle_opaque(SYSCTL_HANDLER_ARGS); 157 158 /* 159 * These functions are used to add/remove an oid from the mib. 160 */ 161 void sysctl_register_oid(struct sysctl_oid *oidp); 162 void sysctl_unregister_oid(struct sysctl_oid *oidp); 163 164 /* Declare a static oid to allow child oids to be added to it. */ 165 #define SYSCTL_DECL(name) \ 166 extern struct sysctl_oid_list sysctl_##name##_children 167 168 /* Hide these in macros */ 169 #define SYSCTL_SET_CHILDREN(oid_ptr, children) do { \ 170 (oid_ptr)->oid_arg1 = (children); \ 171 } while(0) 172 #define SYSCTL_CHILDREN(oid_ptr) (struct sysctl_oid_list *) \ 173 (oid_ptr)->oid_arg1 174 #define SYSCTL_STATIC_CHILDREN(oid_name) \ 175 (&sysctl_##oid_name##_children) 176 177 /* === Structs and macros related to context handling === */ 178 179 /* All dynamically created sysctls can be tracked in a context list. */ 180 struct sysctl_ctx_entry { 181 struct sysctl_oid *entry; 182 TAILQ_ENTRY(sysctl_ctx_entry) link; 183 }; 184 185 TAILQ_HEAD(sysctl_ctx_list, sysctl_ctx_entry); 186 187 #define SYSCTL_NODE_CHILDREN(parent, name) \ 188 sysctl_##parent##_##name##_children 189 190 /* This constructs a "raw" MIB oid. */ 191 #define SYSCTL_OID(parent, nbr, name, kind, a1, a2, handler, fmt, descr) \ 192 static struct sysctl_oid sysctl__##parent##_##name = { \ 193 &sysctl_##parent##_children, { 0 }, \ 194 nbr, kind, a1, a2, #name, handler, fmt, 0, descr }; \ 195 DATA_SET(sysctl_set, sysctl__##parent##_##name); 196 197 #define SYSCTL_ADD_OID(ctx, parent, nbr, name, kind, a1, a2, handler, fmt, descr) \ 198 sysctl_add_oid(ctx, parent, nbr, name, kind, a1, a2, handler, fmt, descr); 199 200 /* This constructs a node from which other oids can hang. */ 201 #define SYSCTL_NODE(parent, nbr, name, access, handler, descr) \ 202 struct sysctl_oid_list sysctl_##parent##_##name##_children; \ 203 SYSCTL_OID(parent, nbr, name, CTLTYPE_NODE|access, \ 204 (void*)&sysctl_##parent##_##name##_children, 0, handler, \ 205 "N", descr); 206 207 #define SYSCTL_ADD_NODE(ctx, parent, nbr, name, access, handler, descr) \ 208 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_NODE|access, \ 209 0, 0, handler, "N", descr) 210 211 /* Oid for a string. len can be 0 to indicate '\0' termination. */ 212 #define SYSCTL_STRING(parent, nbr, name, access, arg, len, descr) \ 213 SYSCTL_OID(parent, nbr, name, CTLTYPE_STRING|access, \ 214 arg, len, sysctl_handle_string, "A", descr) 215 216 #define SYSCTL_ADD_STRING(ctx, parent, nbr, name, access, arg, len, descr) \ 217 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_STRING|access, \ 218 arg, len, sysctl_handle_string, "A", descr) 219 220 /* Oid for an int. If ptr is NULL, val is returned. */ 221 #define SYSCTL_INT(parent, nbr, name, access, ptr, val, descr) \ 222 SYSCTL_OID(parent, nbr, name, CTLTYPE_INT|access, \ 223 ptr, val, sysctl_handle_int, "I", descr) 224 225 #define SYSCTL_ADD_INT(ctx, parent, nbr, name, access, ptr, val, descr) \ 226 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_INT|access, \ 227 ptr, val, sysctl_handle_int, "I", descr) 228 229 /* Oid for a quad. If ptr is NULL, val is returned. */ 230 #define SYSCTL_QUAD(parent, nbr, name, access, ptr, val, descr) \ 231 SYSCTL_OID(parent, nbr, name, CTLTYPE_QUAD|access, \ 232 ptr, val, sysctl_handle_quad, "Q", descr) 233 234 #define SYSCTL_ADD_QUAD(ctx, parent, nbr, name, access, ptr, val, descr) \ 235 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_QUAD|access, \ 236 ptr, val, sysctl_handle_quad, "Q", descr) 237 238 /* Oid for an unsigned quad. If ptr is NULL, val is returned. */ 239 #define SYSCTL_UQUAD(parent, nbr, name, access, ptr, val, descr) \ 240 SYSCTL_OID(parent, nbr, name, CTLTYPE_UQUAD|access, \ 241 ptr, val, sysctl_handle_quad, "QU", descr) 242 243 #define SYSCTL_ADD_UQUAD(ctx, parent, nbr, name, access, ptr, val, descr) \ 244 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_UQUAD|access, \ 245 ptr, val, sysctl_handle_quad, "QU", descr) 246 247 /* Oid for an unsigned int. If ptr is NULL, val is returned. */ 248 #define SYSCTL_UINT(parent, nbr, name, access, ptr, val, descr) \ 249 SYSCTL_OID(parent, nbr, name, CTLTYPE_UINT|access, \ 250 ptr, val, sysctl_handle_int, "IU", descr) 251 252 #define SYSCTL_ADD_UINT(ctx, parent, nbr, name, access, ptr, val, descr) \ 253 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_UINT|access, \ 254 ptr, val, sysctl_handle_int, "IU", descr) 255 256 /* Oid for a long. The pointer must be non NULL. */ 257 #define SYSCTL_LONG(parent, nbr, name, access, ptr, val, descr) \ 258 SYSCTL_OID(parent, nbr, name, CTLTYPE_LONG|access, \ 259 ptr, val, sysctl_handle_long, "L", descr) 260 261 #define SYSCTL_ADD_LONG(ctx, parent, nbr, name, access, ptr, descr) \ 262 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_LONG|access, \ 263 ptr, 0, sysctl_handle_long, "L", descr) 264 265 /* Oid for a long. The pointer must be non NULL. */ 266 #define SYSCTL_ULONG(parent, nbr, name, access, ptr, val, descr) \ 267 SYSCTL_OID(parent, nbr, name, CTLTYPE_ULONG|access, \ 268 ptr, val, sysctl_handle_long, "LU", descr) 269 270 #define SYSCTL_ADD_ULONG(ctx, parent, nbr, name, access, ptr, descr) \ 271 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_ULONG|access, \ 272 ptr, 0, sysctl_handle_long, "LU", descr) 273 274 /* Oid for an opaque object. Specified by a pointer and a length. */ 275 #define SYSCTL_OPAQUE(parent, nbr, name, access, ptr, len, fmt, descr) \ 276 SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|access, \ 277 ptr, len, sysctl_handle_opaque, fmt, descr) 278 279 #define SYSCTL_ADD_OPAQUE(ctx, parent, nbr, name, access, ptr, len, fmt, descr)\ 280 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_OPAQUE|access, \ 281 ptr, len, sysctl_handle_opaque, fmt, descr) 282 283 /* Oid for a struct. Specified by a pointer and a type. */ 284 #define SYSCTL_STRUCT(parent, nbr, name, access, ptr, type, descr) \ 285 SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|access, \ 286 ptr, sizeof(struct type), sysctl_handle_opaque, \ 287 "S," #type, descr) 288 289 #define SYSCTL_ADD_STRUCT(ctx, parent, nbr, name, access, ptr, type, descr) \ 290 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_OPAQUE|access, \ 291 ptr, sizeof(struct type), sysctl_handle_opaque, "S," #type, descr) 292 293 /* Oid for a procedure. Specified by a pointer and an arg. */ 294 #define SYSCTL_PROC(parent, nbr, name, access, ptr, arg, handler, fmt, descr) \ 295 SYSCTL_OID(parent, nbr, name, access, \ 296 ptr, arg, handler, fmt, descr) 297 298 #define SYSCTL_ADD_PROC(ctx, parent, nbr, name, access, ptr, arg, handler, fmt, descr) \ 299 sysctl_add_oid(ctx, parent, nbr, name, access, \ 300 ptr, arg, handler, fmt, descr) 301 302 #endif /* _KERNEL */ 303 304 /* 305 * Top-level identifiers 306 */ 307 #define CTL_UNSPEC 0 /* unused */ 308 #define CTL_KERN 1 /* "high kernel": proc, limits */ 309 #define CTL_VM 2 /* virtual memory */ 310 #define CTL_VFS 3 /* file system, mount type is next */ 311 #define CTL_NET 4 /* network, see socket.h */ 312 #define CTL_DEBUG 5 /* debugging parameters */ 313 #define CTL_HW 6 /* generic cpu/io */ 314 #define CTL_MACHDEP 7 /* machine dependent */ 315 #define CTL_USER 8 /* user-level */ 316 #define CTL_P1003_1B 9 /* POSIX 1003.1B */ 317 #define CTL_LWKT 10 /* light weight kernel threads */ 318 #define CTL_MAXID 11 /* number of valid top-level ids */ 319 320 #define CTL_NAMES { \ 321 { 0, 0 }, \ 322 { "kern", CTLTYPE_NODE }, \ 323 { "vm", CTLTYPE_NODE }, \ 324 { "vfs", CTLTYPE_NODE }, \ 325 { "net", CTLTYPE_NODE }, \ 326 { "debug", CTLTYPE_NODE }, \ 327 { "hw", CTLTYPE_NODE }, \ 328 { "machdep", CTLTYPE_NODE }, \ 329 { "user", CTLTYPE_NODE }, \ 330 { "p1003_1b", CTLTYPE_NODE }, \ 331 { "lwkt", CTLTYPE_NODE }, \ 332 } 333 334 /* 335 * CTL_KERN identifiers 336 */ 337 #define KERN_OSTYPE 1 /* string: system version */ 338 #define KERN_OSRELEASE 2 /* string: system release */ 339 #define KERN_OSREV 3 /* int: system revision */ 340 #define KERN_VERSION 4 /* string: compile time info */ 341 #define KERN_MAXVNODES 5 /* int: max vnodes */ 342 #define KERN_MAXPROC 6 /* int: max processes */ 343 #define KERN_MAXFILES 7 /* int: max open files */ 344 #define KERN_ARGMAX 8 /* int: max arguments to exec */ 345 #define KERN_SECURELVL 9 /* int: system security level */ 346 #define KERN_HOSTNAME 10 /* string: hostname */ 347 #define KERN_HOSTID 11 /* int: host identifier */ 348 #define KERN_CLOCKRATE 12 /* struct: struct clockrate */ 349 #define KERN_VNODE 13 /* struct: vnode structures */ 350 #define KERN_PROC 14 /* struct: process entries */ 351 #define KERN_FILE 15 /* struct: file entries */ 352 #define KERN_PROF 16 /* node: kernel profiling info */ 353 #define KERN_POSIX1 17 /* int: POSIX.1 version */ 354 #define KERN_NGROUPS 18 /* int: # of supplemental group ids */ 355 #define KERN_JOB_CONTROL 19 /* int: is job control available */ 356 #define KERN_SAVED_IDS 20 /* int: saved set-user/group-ID */ 357 #define KERN_BOOTTIME 21 /* struct: time kernel was booted */ 358 #define KERN_NISDOMAINNAME 22 /* string: YP domain name */ 359 #define KERN_UPDATEINTERVAL 23 /* int: update process sleep time */ 360 #define KERN_OSRELDATE 24 /* int: OS release date */ 361 #define KERN_NTP_PLL 25 /* node: NTP PLL control */ 362 #define KERN_BOOTFILE 26 /* string: name of booted kernel */ 363 #define KERN_MAXFILESPERPROC 27 /* int: max open files per proc */ 364 #define KERN_MAXPROCPERUID 28 /* int: max processes per uid */ 365 #define KERN_DUMPDEV 29 /* udev_t: device to dump on */ 366 #define KERN_IPC 30 /* node: anything related to IPC */ 367 #define KERN_DUMMY 31 /* unused */ 368 #define KERN_PS_STRINGS 32 /* int: address of PS_STRINGS */ 369 #define KERN_USRSTACK 33 /* int: address of USRSTACK */ 370 #define KERN_LOGSIGEXIT 34 /* int: do we log sigexit procs? */ 371 #define KERN_IOV_MAX 35 /* int: value of UIO_MAXIOV */ 372 #define KERN_MAXPOSIXLOCKSPERUID 36 /* int: max POSIX locks per uid */ 373 #define KERN_MAXID 37 /* number of valid kern ids */ 374 375 #define CTL_KERN_NAMES { \ 376 { 0, 0 }, \ 377 { "ostype", CTLTYPE_STRING }, \ 378 { "osrelease", CTLTYPE_STRING }, \ 379 { "osrevision", CTLTYPE_INT }, \ 380 { "version", CTLTYPE_STRING }, \ 381 { "maxvnodes", CTLTYPE_INT }, \ 382 { "maxproc", CTLTYPE_INT }, \ 383 { "maxfiles", CTLTYPE_INT }, \ 384 { "argmax", CTLTYPE_INT }, \ 385 { "securelevel", CTLTYPE_INT }, \ 386 { "hostname", CTLTYPE_STRING }, \ 387 { "hostid", CTLTYPE_UINT }, \ 388 { "clockrate", CTLTYPE_STRUCT }, \ 389 { "vnode", CTLTYPE_STRUCT }, \ 390 { "proc", CTLTYPE_STRUCT }, \ 391 { "file", CTLTYPE_STRUCT }, \ 392 { "profiling", CTLTYPE_NODE }, \ 393 { "posix1version", CTLTYPE_INT }, \ 394 { "ngroups", CTLTYPE_INT }, \ 395 { "job_control", CTLTYPE_INT }, \ 396 { "saved_ids", CTLTYPE_INT }, \ 397 { "boottime", CTLTYPE_STRUCT }, \ 398 { "nisdomainname", CTLTYPE_STRING }, \ 399 { "update", CTLTYPE_INT }, \ 400 { "osreldate", CTLTYPE_INT }, \ 401 { "ntp_pll", CTLTYPE_NODE }, \ 402 { "bootfile", CTLTYPE_STRING }, \ 403 { "maxfilesperproc", CTLTYPE_INT }, \ 404 { "maxprocperuid", CTLTYPE_INT }, \ 405 { "maxposixlocksperuid", CTLTYPE_INT }, \ 406 { "dumpdev", CTLTYPE_STRUCT }, /* we lie; don't print as int */ \ 407 { "ipc", CTLTYPE_NODE }, \ 408 { "dummy", CTLTYPE_INT }, \ 409 { "ps_strings", CTLTYPE_INT }, \ 410 { "usrstack", CTLTYPE_INT }, \ 411 { "logsigexit", CTLTYPE_INT }, \ 412 { "iov_max", CTLTYPE_INT }, \ 413 } 414 415 /* 416 * CTL_VFS identifiers 417 */ 418 #define CTL_VFS_NAMES { \ 419 { "vfsconf", CTLTYPE_STRUCT }, \ 420 } 421 422 /* 423 * KERN_PROC subtypes 424 */ 425 #define KERN_PROC_ALL 0 /* everything */ 426 #define KERN_PROC_PID 1 /* by process id */ 427 #define KERN_PROC_PGRP 2 /* by process group id */ 428 #define KERN_PROC_SESSION 3 /* by session of pid */ 429 #define KERN_PROC_TTY 4 /* by controlling tty */ 430 #define KERN_PROC_UID 5 /* by effective uid */ 431 #define KERN_PROC_RUID 6 /* by real uid */ 432 #define KERN_PROC_ARGS 7 /* get/set arguments/proctitle */ 433 434 #define KERN_PROC_FLAGMASK 0x10 435 #define KERN_PROC_FLAG_LWP 0x10 436 437 /* 438 * KERN_IPC identifiers 439 */ 440 #define KIPC_MAXSOCKBUF 1 /* int: max size of a socket buffer */ 441 #define KIPC_SOCKBUF_WASTE 2 /* int: wastage factor in sockbuf */ 442 #define KIPC_SOMAXCONN 3 /* int: max length of connection q */ 443 #define KIPC_MAX_LINKHDR 4 /* int: max length of link header */ 444 #define KIPC_MAX_PROTOHDR 5 /* int: max length of network header */ 445 #define KIPC_MAX_HDR 6 /* int: max total length of headers */ 446 #define KIPC_MAX_DATALEN 7 /* int: max length of data? */ 447 #define KIPC_MBSTAT 8 /* struct: mbuf usage statistics */ 448 #define KIPC_NMBCLUSTERS 9 /* int: maximum mbuf clusters */ 449 450 /* 451 * CTL_HW identifiers 452 */ 453 #define HW_MACHINE 1 /* string: machine class */ 454 #define HW_MODEL 2 /* string: specific machine model */ 455 #define HW_NCPU 3 /* int: number of cpus */ 456 #define HW_BYTEORDER 4 /* int: machine byte order */ 457 #define HW_PHYSMEM 5 /* int: total memory */ 458 #define HW_USERMEM 6 /* int: non-kernel memory */ 459 #define HW_PAGESIZE 7 /* int: software page size */ 460 #define HW_DISKNAMES 8 /* strings: disk drive names */ 461 #define HW_DISKSTATS 9 /* struct: diskstats[] */ 462 #define HW_FLOATINGPT 10 /* int: has HW floating point? */ 463 #define HW_MACHINE_ARCH 11 /* string: machine architecture */ 464 #define HW_MACHINE_PLATFORM 12 /* string: platform architecture */ 465 #define HW_SENSORS 13 /* node: hardware sensors */ 466 #define HW_MAXID 14 /* number of valid hw ids */ 467 468 #define CTL_HW_NAMES { \ 469 { 0, 0 }, \ 470 { "machine", CTLTYPE_STRING }, \ 471 { "model", CTLTYPE_STRING }, \ 472 { "ncpu", CTLTYPE_INT }, \ 473 { "byteorder", CTLTYPE_INT }, \ 474 { "physmem", CTLTYPE_UINT }, \ 475 { "usermem", CTLTYPE_UINT }, \ 476 { "pagesize", CTLTYPE_INT }, \ 477 { "disknames", CTLTYPE_STRUCT }, \ 478 { "diskstats", CTLTYPE_STRUCT }, \ 479 { "floatingpoint", CTLTYPE_INT }, \ 480 { "arch", CTLTYPE_STRING }, \ 481 { "platform", CTLTYPE_STRING }, \ 482 { "sensors", CTLTYPE_NODE }, \ 483 } 484 485 /* 486 * CTL_USER definitions 487 */ 488 #define USER_CS_PATH 1 /* string: _CS_PATH */ 489 #define USER_BC_BASE_MAX 2 /* int: BC_BASE_MAX */ 490 #define USER_BC_DIM_MAX 3 /* int: BC_DIM_MAX */ 491 #define USER_BC_SCALE_MAX 4 /* int: BC_SCALE_MAX */ 492 #define USER_BC_STRING_MAX 5 /* int: BC_STRING_MAX */ 493 #define USER_COLL_WEIGHTS_MAX 6 /* int: COLL_WEIGHTS_MAX */ 494 #define USER_EXPR_NEST_MAX 7 /* int: EXPR_NEST_MAX */ 495 #define USER_LINE_MAX 8 /* int: LINE_MAX */ 496 #define USER_RE_DUP_MAX 9 /* int: RE_DUP_MAX */ 497 #define USER_POSIX2_VERSION 10 /* int: POSIX2_VERSION */ 498 #define USER_POSIX2_C_BIND 11 /* int: POSIX2_C_BIND */ 499 #define USER_POSIX2_C_DEV 12 /* int: POSIX2_C_DEV */ 500 #define USER_POSIX2_CHAR_TERM 13 /* int: POSIX2_CHAR_TERM */ 501 #define USER_POSIX2_FORT_DEV 14 /* int: POSIX2_FORT_DEV */ 502 #define USER_POSIX2_FORT_RUN 15 /* int: POSIX2_FORT_RUN */ 503 #define USER_POSIX2_LOCALEDEF 16 /* int: POSIX2_LOCALEDEF */ 504 #define USER_POSIX2_SW_DEV 17 /* int: POSIX2_SW_DEV */ 505 #define USER_POSIX2_UPE 18 /* int: POSIX2_UPE */ 506 #define USER_STREAM_MAX 19 /* int: POSIX2_STREAM_MAX */ 507 #define USER_TZNAME_MAX 20 /* int: POSIX2_TZNAME_MAX */ 508 #define USER_MAXID 21 /* number of valid user ids */ 509 510 #define CTL_USER_NAMES { \ 511 { 0, 0 }, \ 512 { "cs_path", CTLTYPE_STRING }, \ 513 { "bc_base_max", CTLTYPE_INT }, \ 514 { "bc_dim_max", CTLTYPE_INT }, \ 515 { "bc_scale_max", CTLTYPE_INT }, \ 516 { "bc_string_max", CTLTYPE_INT }, \ 517 { "coll_weights_max", CTLTYPE_INT }, \ 518 { "expr_nest_max", CTLTYPE_INT }, \ 519 { "line_max", CTLTYPE_INT }, \ 520 { "re_dup_max", CTLTYPE_INT }, \ 521 { "posix2_version", CTLTYPE_INT }, \ 522 { "posix2_c_bind", CTLTYPE_INT }, \ 523 { "posix2_c_dev", CTLTYPE_INT }, \ 524 { "posix2_char_term", CTLTYPE_INT }, \ 525 { "posix2_fort_dev", CTLTYPE_INT }, \ 526 { "posix2_fort_run", CTLTYPE_INT }, \ 527 { "posix2_localedef", CTLTYPE_INT }, \ 528 { "posix2_sw_dev", CTLTYPE_INT }, \ 529 { "posix2_upe", CTLTYPE_INT }, \ 530 { "stream_max", CTLTYPE_INT }, \ 531 { "tzname_max", CTLTYPE_INT }, \ 532 } 533 534 #define CTL_P1003_1B_ASYNCHRONOUS_IO 1 /* boolean */ 535 #define CTL_P1003_1B_MAPPED_FILES 2 /* boolean */ 536 #define CTL_P1003_1B_MEMLOCK 3 /* boolean */ 537 #define CTL_P1003_1B_MEMLOCK_RANGE 4 /* boolean */ 538 #define CTL_P1003_1B_MEMORY_PROTECTION 5 /* boolean */ 539 #define CTL_P1003_1B_MESSAGE_PASSING 6 /* boolean */ 540 #define CTL_P1003_1B_PRIORITIZED_IO 7 /* boolean */ 541 #define CTL_P1003_1B_PRIORITY_SCHEDULING 8 /* boolean */ 542 #define CTL_P1003_1B_REALTIME_SIGNALS 9 /* boolean */ 543 #define CTL_P1003_1B_SEMAPHORES 10 /* boolean */ 544 #define CTL_P1003_1B_FSYNC 11 /* boolean */ 545 #define CTL_P1003_1B_SHARED_MEMORY_OBJECTS 12 /* boolean */ 546 #define CTL_P1003_1B_SYNCHRONIZED_IO 13 /* boolean */ 547 #define CTL_P1003_1B_TIMERS 14 /* boolean */ 548 #define CTL_P1003_1B_AIO_LISTIO_MAX 15 /* int */ 549 #define CTL_P1003_1B_AIO_MAX 16 /* int */ 550 #define CTL_P1003_1B_AIO_PRIO_DELTA_MAX 17 /* int */ 551 #define CTL_P1003_1B_DELAYTIMER_MAX 18 /* int */ 552 #define CTL_P1003_1B_MQ_OPEN_MAX 19 /* int */ 553 #define CTL_P1003_1B_PAGESIZE 20 /* int */ 554 #define CTL_P1003_1B_RTSIG_MAX 21 /* int */ 555 #define CTL_P1003_1B_SEM_NSEMS_MAX 22 /* int */ 556 #define CTL_P1003_1B_SEM_VALUE_MAX 23 /* int */ 557 #define CTL_P1003_1B_SIGQUEUE_MAX 24 /* int */ 558 #define CTL_P1003_1B_TIMER_MAX 25 /* int */ 559 560 #define CTL_P1003_1B_MAXID 26 561 562 #define CTL_P1003_1B_NAMES { \ 563 { 0, 0 }, \ 564 { "asynchronous_io", CTLTYPE_INT }, \ 565 { "mapped_files", CTLTYPE_INT }, \ 566 { "memlock", CTLTYPE_INT }, \ 567 { "memlock_range", CTLTYPE_INT }, \ 568 { "memory_protection", CTLTYPE_INT }, \ 569 { "message_passing", CTLTYPE_INT }, \ 570 { "prioritized_io", CTLTYPE_INT }, \ 571 { "priority_scheduling", CTLTYPE_INT }, \ 572 { "realtime_signals", CTLTYPE_INT }, \ 573 { "semaphores", CTLTYPE_INT }, \ 574 { "fsync", CTLTYPE_INT }, \ 575 { "shared_memory_objects", CTLTYPE_INT }, \ 576 { "synchronized_io", CTLTYPE_INT }, \ 577 { "timers", CTLTYPE_INT }, \ 578 { "aio_listio_max", CTLTYPE_INT }, \ 579 { "aio_max", CTLTYPE_INT }, \ 580 { "aio_prio_delta_max", CTLTYPE_INT }, \ 581 { "delaytimer_max", CTLTYPE_INT }, \ 582 { "mq_open_max", CTLTYPE_INT }, \ 583 { "pagesize", CTLTYPE_INT }, \ 584 { "rtsig_max", CTLTYPE_INT }, \ 585 { "nsems_max", CTLTYPE_INT }, \ 586 { "sem_value_max", CTLTYPE_INT }, \ 587 { "sigqueue_max", CTLTYPE_INT }, \ 588 { "timer_max", CTLTYPE_INT }, \ 589 } 590 591 #ifdef _KERNEL 592 593 /* 594 * Declare some common oids. 595 */ 596 extern struct sysctl_oid_list sysctl__children; 597 SYSCTL_DECL(_kern); 598 SYSCTL_DECL(_sysctl); 599 SYSCTL_DECL(_vm); 600 SYSCTL_DECL(_vfs); 601 SYSCTL_DECL(_net); 602 SYSCTL_DECL(_debug); 603 SYSCTL_DECL(_debug_sizeof); 604 SYSCTL_DECL(_hw); 605 SYSCTL_DECL(_machdep); 606 SYSCTL_DECL(_user); 607 SYSCTL_DECL(_compat); 608 SYSCTL_DECL(_lwkt); 609 610 /* 611 * Common second-level oids. 612 */ 613 SYSCTL_DECL(_kern_ipc); 614 615 extern char machine[]; 616 extern char osrelease[]; 617 extern char ostype[]; 618 extern char kern_ident[]; 619 620 /* Dynamic oid handling */ 621 struct sysctl_oid *sysctl_add_oid(struct sysctl_ctx_list *clist, 622 struct sysctl_oid_list *parent, int nbr, const char *name, 623 int kind, void *arg1, int arg2, 624 int (*handler) (SYSCTL_HANDLER_ARGS), 625 const char *fmt, const char *descr); 626 int sysctl_remove_oid(struct sysctl_oid *oidp, int del, int recurse); 627 int sysctl_ctx_init(struct sysctl_ctx_list *clist); 628 int sysctl_ctx_free(struct sysctl_ctx_list *clist); 629 struct sysctl_ctx_entry *sysctl_ctx_entry_add(struct sysctl_ctx_list *clist, 630 struct sysctl_oid *oidp); 631 struct sysctl_ctx_entry *sysctl_ctx_entry_find(struct sysctl_ctx_list *clist, 632 struct sysctl_oid *oidp); 633 int sysctl_ctx_entry_del(struct sysctl_ctx_list *clist, 634 struct sysctl_oid *oidp); 635 636 int kernel_sysctl(int *name, u_int namelen, void *old, 637 size_t *oldlenp, void *new, size_t newlen, 638 size_t *retval); 639 int kernel_sysctlbyname(char *name, 640 void *old, size_t *oldlenp, void *new, size_t newlen, 641 size_t *retval); 642 int userland_sysctl(int *name, u_int namelen, void *old, 643 size_t *oldlenp, int inkernel, void *new, size_t newlen, 644 size_t *retval); 645 int sysctl_find_oid(int *name, u_int namelen, struct sysctl_oid **noid, 646 int *nindx, struct sysctl_req *req); 647 648 #endif /* _KERNEL */ 649 650 #if !defined(_KERNEL) || defined(_KERNEL_VIRTUAL) 651 652 #include <sys/cdefs.h> 653 654 __BEGIN_DECLS 655 int sysctl (int *, u_int, void *, size_t *, void *, size_t); 656 int sysctlbyname (const char *, void *, size_t *, void *, size_t); 657 int sysctlnametomib (const char *, int *, size_t *); 658 __END_DECLS 659 660 #endif /* _KERNEL && _KERNEL_VIRTUAL */ 661 662 #endif /* !_SYS_SYSCTL_H_ */ 663