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. Neither the name of the University nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 * 32 * @(#)sysctl.h 8.1 (Berkeley) 6/2/93 33 * $FreeBSD: head/sys/sys/sysctl.h 204170 2010-02-21 13:57:02Z ed $ 34 */ 35 36 #ifndef _SYS_SYSCTL_H_ 37 #define _SYS_SYSCTL_H_ 38 39 #ifndef _SYS_TYPES_H_ 40 #include <sys/types.h> 41 #endif 42 #ifndef _SYS_QUEUE_H_ 43 #include <sys/queue.h> 44 #endif 45 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 */ 64 struct 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 #define CTLTYPE_UQUAD 9 /* name describes an unsigned 64-bit number */ 80 #define CTLTYPE_U32 0xf /* name describes an unsigned 32-bit number */ 81 82 #define CTLFLAG_RD 0x80000000 /* Allow reads of variable */ 83 #define CTLFLAG_WR 0x40000000 /* Allow writes to the variable */ 84 #define CTLFLAG_RW (CTLFLAG_RD|CTLFLAG_WR) 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 #define CTLFLAG_SKIP 0x01000000 /* Skip this sysctl when listing */ 90 #define CTLMASK_SECURE 0x00F00000 /* Secure level */ 91 #define CTLFLAG_DYING 0x00010000 /* Oid is being removed */ 92 #define CTLFLAG_SHLOCK 0x00008000 /* shlock on write (def is exlock) */ 93 #define CTLFLAG_EXLOCK 0x00004000 /* exlock on read (def is shlock) */ 94 #define CTLFLAG_NOLOCK 0x00002000 /* no lock required */ 95 #define CTLMASK_TYPE 0x0000000F /* type field */ 96 97 /* 98 * USE THIS instead of a hardwired number from the categories below 99 * to get dynamically assigned sysctl entries using the linker-set 100 * technology. This is the way nearly all new sysctl variables should 101 * be implemented. 102 * e.g. SYSCTL_INT(_parent, OID_AUTO, name, CTLFLAG_RW, &variable, 0, ""); 103 */ 104 #define OID_AUTO (-1) 105 106 #ifdef _KERNEL 107 108 #include <sys/kernel.h> /* for DATA_SET */ 109 #ifndef _SYS_LOCK_H_ 110 #include <sys/lock.h> 111 #endif 112 113 #define SYSCTL_HANDLER_ARGS struct sysctl_oid *oidp, void *arg1, int arg2, \ 114 struct sysctl_req *req 115 116 /* 117 * This describes the access space for a sysctl request. This is needed 118 * so that we can use the interface from the kernel or from user-space. 119 */ 120 struct sysctl_req { 121 struct thread *td; /* used for access checking */ 122 int lock; /* wiring state */ 123 void *oldptr; 124 size_t oldlen; 125 size_t oldidx; 126 int (*oldfunc)(struct sysctl_req *, const void *, size_t); 127 void *newptr; 128 size_t newlen; 129 size_t newidx; 130 int (*newfunc)(struct sysctl_req *, void *, size_t); 131 size_t validlen; 132 int flags; 133 }; 134 135 SLIST_HEAD(sysctl_oid_list, sysctl_oid); 136 137 /* 138 * This describes one "oid" in the MIB tree. Potentially more nodes can 139 * be hidden behind it, expanded by the handler. 140 */ 141 struct sysctl_oid { 142 struct sysctl_oid_list *oid_parent; 143 SLIST_ENTRY(sysctl_oid) oid_link; 144 int oid_number; 145 int oid_kind; 146 void *oid_arg1; 147 int oid_arg2; 148 const char *oid_name; 149 int (*oid_handler)(SYSCTL_HANDLER_ARGS); 150 const char *oid_fmt; 151 int oid_refcnt; 152 u_int oid_running; 153 const char *oid_descr; 154 struct lock oid_lock; /* per-node lock */ 155 }; 156 157 #define SYSCTL_IN(r, p, l) (r->newfunc)(r, p, l) 158 #define SYSCTL_OUT(r, p, l) (r->oldfunc)(r, p, l) 159 #define SYSCTL_OUT_STR(r, p) (r->oldfunc)(r, p, strlen(p) + 1) 160 161 int sysctl_handle_32(SYSCTL_HANDLER_ARGS); 162 int sysctl_handle_int(SYSCTL_HANDLER_ARGS); 163 int sysctl_handle_long(SYSCTL_HANDLER_ARGS); 164 int sysctl_handle_quad(SYSCTL_HANDLER_ARGS); 165 int sysctl_handle_intptr(SYSCTL_HANDLER_ARGS); 166 int sysctl_handle_string(SYSCTL_HANDLER_ARGS); 167 int sysctl_handle_opaque(SYSCTL_HANDLER_ARGS); 168 169 extern struct lock sysctllock; 170 171 #define SYSCTL_XLOCK() _sysctl_xlock() 172 #define SYSCTL_XUNLOCK() _sysctl_xunlock() 173 #define SYSCTL_SLOCK() lockmgr(&mycpu->gd_sysctllock, LK_SHARED) 174 #define SYSCTL_SUNLOCK() lockmgr(&mycpu->gd_sysctllock, LK_RELEASE) 175 #define SYSCTL_ASSERT_LOCKED() \ 176 KKASSERT(lockstatus(&mycpu->gd_sysctllock, curthread) != 0) 177 178 /* 179 * These functions are used to add/remove an oid from the mib. 180 */ 181 void sysctl_register_oid(struct sysctl_oid *oidp); 182 void sysctl_unregister_oid(struct sysctl_oid *oidp); 183 184 /* Declare a static oid to allow child oids to be added to it. */ 185 #define SYSCTL_DECL(name) \ 186 extern struct sysctl_oid_list sysctl_##name##_children 187 188 /* Hide these in macros */ 189 #define SYSCTL_SET_CHILDREN(oid_ptr, children) do { \ 190 (oid_ptr)->oid_arg1 = (children); \ 191 } while(0) 192 #define SYSCTL_CHILDREN(oid_ptr) (struct sysctl_oid_list *) \ 193 (oid_ptr)->oid_arg1 194 #define SYSCTL_STATIC_CHILDREN(oid_name) \ 195 (&sysctl_##oid_name##_children) 196 197 /* === Structs and macros related to context handling === */ 198 199 /* All dynamically created sysctls can be tracked in a context list. */ 200 struct sysctl_ctx_entry { 201 struct sysctl_oid *entry; 202 TAILQ_ENTRY(sysctl_ctx_entry) link; 203 }; 204 205 TAILQ_HEAD(sysctl_ctx_list, sysctl_ctx_entry); 206 207 #define SYSCTL_NODE_CHILDREN(parent, name) \ 208 sysctl_##parent##_##name##_children 209 210 #ifndef NO_SYSCTL_DESCR 211 #define __DESCR(d) d 212 #else 213 #define __DESCR(d) "" 214 #endif 215 216 /* This constructs a "raw" MIB oid. */ 217 #define SYSCTL_OID(parent, nbr, name, kind, a1, a2, handler, fmt, descr)\ 218 static struct sysctl_oid sysctl__##parent##_##name = { \ 219 &sysctl_##parent##_children, \ 220 { NULL }, \ 221 nbr, \ 222 kind, \ 223 a1, \ 224 a2, \ 225 #name, \ 226 handler, \ 227 fmt, \ 228 0, \ 229 0, \ 230 __DESCR(descr) \ 231 }; \ 232 DATA_SET(sysctl_set, sysctl__##parent##_##name) 233 234 #define SYSCTL_ADD_OID(ctx, parent, nbr, name, kind, a1, a2, handler, fmt, descr) \ 235 sysctl_add_oid(ctx, parent, nbr, name, kind, a1, a2, handler, fmt, descr); 236 237 /* This constructs a node from which other oids can hang. */ 238 #define SYSCTL_NODE(parent, nbr, name, access, handler, descr) \ 239 struct sysctl_oid_list SYSCTL_NODE_CHILDREN(parent, name); \ 240 SYSCTL_OID(parent, nbr, name, CTLTYPE_NODE|(access), \ 241 (void*)&SYSCTL_NODE_CHILDREN(parent, name), 0, handler, "N", descr) 242 243 #define SYSCTL_ADD_NODE(ctx, parent, nbr, name, access, handler, descr) \ 244 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_NODE|(access), \ 245 0, 0, handler, "N", descr) 246 247 /* Oid for a string. len can be 0 to indicate '\0' termination. */ 248 #define SYSCTL_STRING(parent, nbr, name, access, arg, len, descr) \ 249 SYSCTL_OID(parent, nbr, name, CTLTYPE_STRING|(access), \ 250 arg, len, sysctl_handle_string, "A", descr) 251 252 #define SYSCTL_ADD_STRING(ctx, parent, nbr, name, access, arg, len, descr) \ 253 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_STRING|(access), \ 254 arg, len, sysctl_handle_string, "A", descr) 255 256 /* Oid for an int. If ptr is NULL, val is returned. */ 257 #define SYSCTL_INT(parent, nbr, name, access, ptr, val, descr) \ 258 SYSCTL_OID(parent, nbr, name, \ 259 CTLTYPE_INT|CTLFLAG_NOLOCK|(access), \ 260 ptr, val, sysctl_handle_int, "I", descr) 261 262 #define SYSCTL_ADD_INT(ctx, parent, nbr, name, access, ptr, val, descr) \ 263 sysctl_add_oid(ctx, parent, nbr, name, \ 264 CTLTYPE_INT|CTLFLAG_NOLOCK|(access), \ 265 ptr, val, sysctl_handle_int, "I", descr) 266 267 /* Oid for a quad. If ptr is NULL, val is returned. */ 268 #define SYSCTL_QUAD(parent, nbr, name, access, ptr, val, descr) \ 269 SYSCTL_OID(parent, nbr, name, \ 270 CTLTYPE_QUAD|CTLFLAG_NOLOCK|(access), \ 271 ptr, val, sysctl_handle_quad, "Q", descr) 272 273 #define SYSCTL_ADD_QUAD(ctx, parent, nbr, name, access, ptr, val, descr) \ 274 sysctl_add_oid(ctx, parent, nbr, name, \ 275 CTLTYPE_QUAD|CTLFLAG_NOLOCK|(access), \ 276 ptr, val, sysctl_handle_quad, "Q", descr) 277 278 /* Oid for an unsigned quad. If ptr is NULL, val is returned. */ 279 #define SYSCTL_UQUAD(parent, nbr, name, access, ptr, val, descr) \ 280 SYSCTL_OID(parent, nbr, name, \ 281 CTLTYPE_UQUAD|CTLFLAG_NOLOCK|(access), \ 282 ptr, val, sysctl_handle_quad, "QU", descr) 283 284 #define SYSCTL_ADD_UQUAD(ctx, parent, nbr, name, access, ptr, val, descr) \ 285 sysctl_add_oid(ctx, parent, nbr, name, \ 286 CTLTYPE_UQUAD|CTLFLAG_NOLOCK|(access), \ 287 ptr, val, sysctl_handle_quad, "QU", descr) 288 289 /* Oid for an unsigned int. If ptr is NULL, val is returned. */ 290 #define SYSCTL_UINT(parent, nbr, name, access, ptr, val, descr) \ 291 SYSCTL_OID(parent, nbr, name, \ 292 CTLTYPE_UINT|CTLFLAG_NOLOCK|(access), \ 293 ptr, val, sysctl_handle_int, "IU", descr) 294 295 #define SYSCTL_ADD_UINT(ctx, parent, nbr, name, access, ptr, val, descr) \ 296 sysctl_add_oid(ctx, parent, nbr, name, \ 297 CTLTYPE_UINT|CTLFLAG_NOLOCK|(access), \ 298 ptr, val, sysctl_handle_int, "IU", descr) 299 300 /* Oid for a long. The pointer must be non NULL. */ 301 #define SYSCTL_LONG(parent, nbr, name, access, ptr, val, descr) \ 302 SYSCTL_OID(parent, nbr, name, \ 303 CTLTYPE_LONG|CTLFLAG_NOLOCK|(access), \ 304 ptr, val, sysctl_handle_long, "L", descr) 305 306 #define SYSCTL_ADD_LONG(ctx, parent, nbr, name, access, ptr, descr) \ 307 sysctl_add_oid(ctx, parent, nbr, name, \ 308 CTLTYPE_LONG|CTLFLAG_NOLOCK|(access), \ 309 ptr, 0, sysctl_handle_long, "L", descr) 310 311 /* Oid for a long. The pointer must be non NULL. */ 312 #define SYSCTL_ULONG(parent, nbr, name, access, ptr, val, descr) \ 313 SYSCTL_OID(parent, nbr, name, \ 314 CTLTYPE_ULONG|CTLFLAG_NOLOCK|(access), \ 315 ptr, val, sysctl_handle_long, "LU", descr) 316 317 #define SYSCTL_ADD_ULONG(ctx, parent, nbr, name, access, ptr, descr) \ 318 sysctl_add_oid(ctx, parent, nbr, name, \ 319 CTLTYPE_ULONG|CTLFLAG_NOLOCK|(access), \ 320 ptr, 0, sysctl_handle_long, "LU", descr) 321 322 /* Oid for an unsigned 32-bit int. The pointer must be non NULL. */ 323 #define SYSCTL_U32(parent, nbr, name, access, ptr, val, descr) \ 324 SYSCTL_OID(parent, nbr, name, CTLTYPE_U32|(access), \ 325 ptr, val, sysctl_handle_32, "IU", descr) 326 327 #define SYSCTL_ADD_U32(ctx, parent, nbr, name, access, ptr, descr) \ 328 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_U32|(access), \ 329 ptr, 0, sysctl_handle_32, "IU", descr) 330 331 /* Oid for an opaque object. Specified by a pointer and a length. */ 332 #define SYSCTL_OPAQUE(parent, nbr, name, access, ptr, len, fmt, descr) \ 333 SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|(access), \ 334 ptr, len, sysctl_handle_opaque, fmt, descr) 335 336 #define SYSCTL_ADD_OPAQUE(ctx, parent, nbr, name, access, ptr, len, fmt, descr) \ 337 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_OPAQUE|(access), \ 338 ptr, len, sysctl_handle_opaque, fmt, descr) 339 340 /* Oid for a struct. Specified by a pointer and a type. */ 341 #define SYSCTL_STRUCT(parent, nbr, name, access, ptr, type, descr) \ 342 SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|(access), \ 343 ptr, sizeof(struct type), sysctl_handle_opaque, \ 344 "S," #type, descr) 345 346 #define SYSCTL_ADD_STRUCT(ctx, parent, nbr, name, access, ptr, type, descr) \ 347 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_OPAQUE|(access), \ 348 ptr, sizeof(struct type), sysctl_handle_opaque, "S," #type, descr) 349 350 /* Oid for a procedure. Specified by a pointer and an arg. */ 351 #define SYSCTL_PROC(parent, nbr, name, access, ptr, arg, handler, fmt, descr) \ 352 SYSCTL_OID(parent, nbr, name, (access), \ 353 ptr, arg, handler, fmt, descr) 354 355 #define SYSCTL_ADD_PROC(ctx, parent, nbr, name, access, ptr, arg, handler, fmt, descr) \ 356 sysctl_add_oid(ctx, parent, nbr, name, (access), \ 357 ptr, arg, handler, fmt, descr) 358 359 #endif /* _KERNEL */ 360 361 /* 362 * Top-level identifiers 363 */ 364 #define CTL_UNSPEC 0 /* unused */ 365 #define CTL_KERN 1 /* "high kernel": proc, limits */ 366 #define CTL_VM 2 /* virtual memory */ 367 #define CTL_VFS 3 /* file system, mount type is next */ 368 #define CTL_NET 4 /* network, see socket.h */ 369 #define CTL_DEBUG 5 /* debugging parameters */ 370 #define CTL_HW 6 /* generic cpu/io */ 371 #define CTL_MACHDEP 7 /* machine dependent */ 372 #define CTL_USER 8 /* user-level */ 373 #define CTL_P1003_1B 9 /* POSIX 1003.1B */ 374 #define CTL_LWKT 10 /* light weight kernel threads */ 375 #define CTL_MAXID 11 /* number of valid top-level ids */ 376 377 #define CTL_NAMES { \ 378 { 0, 0 }, \ 379 { "kern", CTLTYPE_NODE }, \ 380 { "vm", CTLTYPE_NODE }, \ 381 { "vfs", CTLTYPE_NODE }, \ 382 { "net", CTLTYPE_NODE }, \ 383 { "debug", CTLTYPE_NODE }, \ 384 { "hw", CTLTYPE_NODE }, \ 385 { "machdep", CTLTYPE_NODE }, \ 386 { "user", CTLTYPE_NODE }, \ 387 { "p1003_1b", CTLTYPE_NODE }, \ 388 { "lwkt", CTLTYPE_NODE }, \ 389 } 390 391 /* 392 * CTL_KERN identifiers 393 */ 394 #define KERN_OSTYPE 1 /* string: system version */ 395 #define KERN_OSRELEASE 2 /* string: system release */ 396 #define KERN_OSREV 3 /* int: system revision */ 397 #define KERN_VERSION 4 /* string: compile time info */ 398 #define KERN_MAXVNODES 5 /* int: max vnodes */ 399 #define KERN_MAXPROC 6 /* int: max processes */ 400 #define KERN_MAXFILES 7 /* int: max open files */ 401 #define KERN_ARGMAX 8 /* int: max arguments to exec */ 402 #define KERN_SECURELVL 9 /* int: system security level */ 403 #define KERN_HOSTNAME 10 /* string: hostname */ 404 #define KERN_HOSTID 11 /* int: host identifier */ 405 #define KERN_CLOCKRATE 12 /* struct: struct clockrate */ 406 #define KERN_VNODE 13 /* struct: vnode structures */ 407 #define KERN_PROC 14 /* struct: process entries */ 408 #define KERN_FILE 15 /* struct: file entries */ 409 #define KERN_PROF 16 /* node: kernel profiling info */ 410 #define KERN_POSIX1 17 /* int: POSIX.1 version */ 411 #define KERN_NGROUPS 18 /* int: # of supplemental group ids */ 412 #define KERN_JOB_CONTROL 19 /* int: is job control available */ 413 #define KERN_SAVED_IDS 20 /* int: saved set-user/group-ID */ 414 #define KERN_BOOTTIME 21 /* struct: time kernel was booted */ 415 #define KERN_NISDOMAINNAME 22 /* string: YP domain name */ 416 #define KERN_UPDATEINTERVAL 23 /* int: update process sleep time */ 417 #define KERN_OSRELDATE 24 /* int: OS release date */ 418 #define KERN_NTP_PLL 25 /* node: NTP PLL control */ 419 #define KERN_BOOTFILE 26 /* string: name of booted kernel */ 420 #define KERN_MAXFILESPERPROC 27 /* int: max open files per proc */ 421 #define KERN_MAXPROCPERUID 28 /* int: max processes per uid */ 422 #define KERN_DUMPDEV 29 /* udev_t: device to dump on */ 423 #define KERN_IPC 30 /* node: anything related to IPC */ 424 #define KERN_DUMMY 31 /* unused */ 425 #define KERN_PS_STRINGS 32 /* int: address of PS_STRINGS */ 426 #define KERN_USRSTACK 33 /* int: address of USRSTACK */ 427 #define KERN_LOGSIGEXIT 34 /* int: do we log sigexit procs? */ 428 #define KERN_IOV_MAX 35 /* int: value of UIO_MAXIOV */ 429 #define KERN_MAXPOSIXLOCKSPERUID 36 /* int: max POSIX locks per uid */ 430 #define KERN_MAXID 37 /* number of valid kern ids */ 431 432 #define CTL_KERN_NAMES { \ 433 { 0, 0 }, \ 434 { "ostype", CTLTYPE_STRING }, \ 435 { "osrelease", CTLTYPE_STRING }, \ 436 { "osrevision", CTLTYPE_INT }, \ 437 { "version", CTLTYPE_STRING }, \ 438 { "maxvnodes", CTLTYPE_INT }, \ 439 { "maxproc", CTLTYPE_INT }, \ 440 { "maxfiles", CTLTYPE_INT }, \ 441 { "argmax", CTLTYPE_INT }, \ 442 { "securelevel", CTLTYPE_INT }, \ 443 { "hostname", CTLTYPE_STRING }, \ 444 { "hostid", CTLTYPE_UINT }, \ 445 { "clockrate", CTLTYPE_STRUCT }, \ 446 { "vnode", CTLTYPE_STRUCT }, \ 447 { "proc", CTLTYPE_STRUCT }, \ 448 { "file", CTLTYPE_STRUCT }, \ 449 { "profiling", CTLTYPE_NODE }, \ 450 { "posix1version", CTLTYPE_INT }, \ 451 { "ngroups", CTLTYPE_INT }, \ 452 { "job_control", CTLTYPE_INT }, \ 453 { "saved_ids", CTLTYPE_INT }, \ 454 { "boottime", CTLTYPE_STRUCT }, \ 455 { "nisdomainname", CTLTYPE_STRING }, \ 456 { "update", CTLTYPE_INT }, \ 457 { "osreldate", CTLTYPE_INT }, \ 458 { "ntp_pll", CTLTYPE_NODE }, \ 459 { "bootfile", CTLTYPE_STRING }, \ 460 { "maxfilesperproc", CTLTYPE_INT }, \ 461 { "maxprocperuid", CTLTYPE_INT }, \ 462 { "dumpdev", CTLTYPE_STRUCT }, /* we lie; don't print as int */ \ 463 { "ipc", CTLTYPE_NODE }, \ 464 { "dummy", CTLTYPE_INT }, \ 465 { "ps_strings", CTLTYPE_INT }, \ 466 { "usrstack", CTLTYPE_INT }, \ 467 { "logsigexit", CTLTYPE_INT }, \ 468 { "iov_max", CTLTYPE_INT }, \ 469 { "maxposixlocksperuid", CTLTYPE_INT }, \ 470 } 471 472 /* 473 * CTL_VFS identifiers 474 */ 475 #define CTL_VFS_NAMES { \ 476 { "vfsconf", CTLTYPE_STRUCT }, \ 477 } 478 479 /* 480 * KERN_PROC subtypes 481 */ 482 #define KERN_PROC_ALL 0 /* everything */ 483 #define KERN_PROC_PID 1 /* by process id */ 484 #define KERN_PROC_PGRP 2 /* by process group id */ 485 #define KERN_PROC_SESSION 3 /* by session of pid */ 486 #define KERN_PROC_TTY 4 /* by controlling tty */ 487 #define KERN_PROC_UID 5 /* by effective uid */ 488 #define KERN_PROC_RUID 6 /* by real uid */ 489 #define KERN_PROC_ARGS 7 /* get/set arguments/proctitle */ 490 #define KERN_PROC_CWD 8 /* get cwd */ 491 #define KERN_PROC_PATHNAME 9 /* path to executable */ 492 #define KERN_PROC_SIGTRAMP 10 /* addr[2]: sigtramp addr range */ 493 494 #define KERN_PROC_FLAGMASK 0x10 495 #define KERN_PROC_FLAG_LWP 0x10 496 497 /* 498 * KERN_IPC identifiers 499 */ 500 #define KIPC_MAXSOCKBUF 1 /* int: max size of a socket buffer */ 501 #define KIPC_SOCKBUF_WASTE 2 /* int: wastage factor in sockbuf */ 502 #define KIPC_SOMAXCONN 3 /* int: max length of connection q */ 503 #define KIPC_MAX_LINKHDR 4 /* int: max length of link header */ 504 #define KIPC_MAX_PROTOHDR 5 /* int: max length of network header */ 505 #define KIPC_MAX_HDR 6 /* int: max total length of headers */ 506 #define KIPC_MAX_DATALEN 7 /* int: max length of data? */ 507 #define KIPC_MBSTAT 8 /* struct: mbuf usage statistics */ 508 #define KIPC_NMBCLUSTERS 9 /* int: maximum mbuf clusters */ 509 510 /* 511 * CTL_HW identifiers 512 */ 513 #define HW_MACHINE 1 /* string: machine class */ 514 #define HW_MODEL 2 /* string: specific machine model */ 515 #define HW_NCPU 3 /* int: number of cpus */ 516 #define HW_BYTEORDER 4 /* int: machine byte order */ 517 #define HW_PHYSMEM 5 /* int: total memory */ 518 #define HW_USERMEM 6 /* int: non-kernel memory */ 519 #define HW_PAGESIZE 7 /* int: software page size */ 520 #define HW_DISKNAMES 8 /* strings: disk drive names */ 521 #define HW_DISKSTATS 9 /* struct: diskstats[] */ 522 #define HW_FLOATINGPT 10 /* int: has HW floating point? */ 523 #define HW_MACHINE_ARCH 11 /* string: machine architecture */ 524 #define HW_MACHINE_PLATFORM 12 /* string: platform architecture */ 525 #define HW_SENSORS 13 /* node: hardware sensors */ 526 #define HW_MAXID 14 /* number of valid hw ids */ 527 528 #define CTL_HW_NAMES { \ 529 { 0, 0 }, \ 530 { "machine", CTLTYPE_STRING }, \ 531 { "model", CTLTYPE_STRING }, \ 532 { "ncpu", CTLTYPE_INT }, \ 533 { "byteorder", CTLTYPE_INT }, \ 534 { "physmem", CTLTYPE_ULONG }, \ 535 { "usermem", CTLTYPE_UINT }, \ 536 { "pagesize", CTLTYPE_INT }, \ 537 { "disknames", CTLTYPE_STRUCT }, \ 538 { "diskstats", CTLTYPE_STRUCT }, \ 539 { "floatingpoint", CTLTYPE_INT }, \ 540 { "arch", CTLTYPE_STRING }, \ 541 { "platform", CTLTYPE_STRING }, \ 542 { "sensors", CTLTYPE_NODE }, \ 543 } 544 545 /* 546 * CTL_USER definitions 547 */ 548 #define USER_CS_PATH 1 /* string: _CS_PATH */ 549 #define USER_BC_BASE_MAX 2 /* int: BC_BASE_MAX */ 550 #define USER_BC_DIM_MAX 3 /* int: BC_DIM_MAX */ 551 #define USER_BC_SCALE_MAX 4 /* int: BC_SCALE_MAX */ 552 #define USER_BC_STRING_MAX 5 /* int: BC_STRING_MAX */ 553 #define USER_COLL_WEIGHTS_MAX 6 /* int: COLL_WEIGHTS_MAX */ 554 #define USER_EXPR_NEST_MAX 7 /* int: EXPR_NEST_MAX */ 555 #define USER_LINE_MAX 8 /* int: LINE_MAX */ 556 #define USER_RE_DUP_MAX 9 /* int: RE_DUP_MAX */ 557 #define USER_POSIX2_VERSION 10 /* int: _POSIX2_VERSION */ 558 #define USER_POSIX2_C_BIND 11 /* int: _POSIX2_C_BIND */ 559 #define USER_POSIX2_C_DEV 12 /* int: _POSIX2_C_DEV */ 560 #define USER_POSIX2_CHAR_TERM 13 /* int: _POSIX2_CHAR_TERM */ 561 #define USER_POSIX2_FORT_DEV 14 /* int: _POSIX2_FORT_DEV */ 562 #define USER_POSIX2_FORT_RUN 15 /* int: _POSIX2_FORT_RUN */ 563 #define USER_POSIX2_LOCALEDEF 16 /* int: _POSIX2_LOCALEDEF */ 564 #define USER_POSIX2_SW_DEV 17 /* int: _POSIX2_SW_DEV */ 565 #define USER_POSIX2_UPE 18 /* int: _POSIX2_UPE */ 566 #define USER_STREAM_MAX 19 /* int: _POSIX2_STREAM_MAX */ 567 #define USER_TZNAME_MAX 20 /* int: _POSIX2_TZNAME_MAX */ 568 #define USER_MAXID 21 /* number of valid user ids */ 569 570 #define CTL_USER_NAMES { \ 571 { 0, 0 }, \ 572 { "cs_path", CTLTYPE_STRING }, \ 573 { "bc_base_max", CTLTYPE_INT }, \ 574 { "bc_dim_max", CTLTYPE_INT }, \ 575 { "bc_scale_max", CTLTYPE_INT }, \ 576 { "bc_string_max", CTLTYPE_INT }, \ 577 { "coll_weights_max", CTLTYPE_INT }, \ 578 { "expr_nest_max", CTLTYPE_INT }, \ 579 { "line_max", CTLTYPE_INT }, \ 580 { "re_dup_max", CTLTYPE_INT }, \ 581 { "posix2_version", CTLTYPE_INT }, \ 582 { "posix2_c_bind", CTLTYPE_INT }, \ 583 { "posix2_c_dev", CTLTYPE_INT }, \ 584 { "posix2_char_term", CTLTYPE_INT }, \ 585 { "posix2_fort_dev", CTLTYPE_INT }, \ 586 { "posix2_fort_run", CTLTYPE_INT }, \ 587 { "posix2_localedef", CTLTYPE_INT }, \ 588 { "posix2_sw_dev", CTLTYPE_INT }, \ 589 { "posix2_upe", CTLTYPE_INT }, \ 590 { "stream_max", CTLTYPE_INT }, \ 591 { "tzname_max", CTLTYPE_INT }, \ 592 } 593 594 #define CTL_P1003_1B_ASYNCHRONOUS_IO 1 /* boolean */ 595 #define CTL_P1003_1B_MAPPED_FILES 2 /* boolean */ 596 #define CTL_P1003_1B_MEMLOCK 3 /* boolean */ 597 #define CTL_P1003_1B_MEMLOCK_RANGE 4 /* boolean */ 598 #define CTL_P1003_1B_MEMORY_PROTECTION 5 /* boolean */ 599 #define CTL_P1003_1B_MESSAGE_PASSING 6 /* boolean */ 600 #define CTL_P1003_1B_PRIORITIZED_IO 7 /* boolean */ 601 #define CTL_P1003_1B_PRIORITY_SCHEDULING 8 /* boolean */ 602 #define CTL_P1003_1B_REALTIME_SIGNALS 9 /* boolean */ 603 #define CTL_P1003_1B_SEMAPHORES 10 /* boolean */ 604 #define CTL_P1003_1B_FSYNC 11 /* boolean */ 605 #define CTL_P1003_1B_SHARED_MEMORY_OBJECTS 12 /* boolean */ 606 #define CTL_P1003_1B_SYNCHRONIZED_IO 13 /* boolean */ 607 #define CTL_P1003_1B_TIMERS 14 /* boolean */ 608 #define CTL_P1003_1B_AIO_LISTIO_MAX 15 /* int */ 609 #define CTL_P1003_1B_AIO_MAX 16 /* int */ 610 #define CTL_P1003_1B_AIO_PRIO_DELTA_MAX 17 /* int */ 611 #define CTL_P1003_1B_DELAYTIMER_MAX 18 /* int */ 612 #define CTL_P1003_1B_UNUSED1 19 /* int */ 613 #define CTL_P1003_1B_PAGESIZE 20 /* int */ 614 #define CTL_P1003_1B_RTSIG_MAX 21 /* int */ 615 #define CTL_P1003_1B_SEM_NSEMS_MAX 22 /* int */ 616 #define CTL_P1003_1B_SEM_VALUE_MAX 23 /* int */ 617 #define CTL_P1003_1B_SIGQUEUE_MAX 24 /* int */ 618 #define CTL_P1003_1B_TIMER_MAX 25 /* int */ 619 620 #define CTL_P1003_1B_MAXID 26 621 622 #define CTL_P1003_1B_NAMES { \ 623 { 0, 0 }, \ 624 { "asynchronous_io", CTLTYPE_INT }, \ 625 { "mapped_files", CTLTYPE_INT }, \ 626 { "memlock", CTLTYPE_INT }, \ 627 { "memlock_range", CTLTYPE_INT }, \ 628 { "memory_protection", CTLTYPE_INT }, \ 629 { "message_passing", CTLTYPE_INT }, \ 630 { "prioritized_io", CTLTYPE_INT }, \ 631 { "priority_scheduling", CTLTYPE_INT }, \ 632 { "realtime_signals", CTLTYPE_INT }, \ 633 { "semaphores", CTLTYPE_INT }, \ 634 { "fsync", CTLTYPE_INT }, \ 635 { "shared_memory_objects", CTLTYPE_INT }, \ 636 { "synchronized_io", CTLTYPE_INT }, \ 637 { "timers", CTLTYPE_INT }, \ 638 { "aio_listio_max", CTLTYPE_INT }, \ 639 { "aio_max", CTLTYPE_INT }, \ 640 { "aio_prio_delta_max", CTLTYPE_INT }, \ 641 { "delaytimer_max", CTLTYPE_INT }, \ 642 { "unused1", CTLTYPE_INT }, \ 643 { "pagesize", CTLTYPE_INT }, \ 644 { "rtsig_max", CTLTYPE_INT }, \ 645 { "nsems_max", CTLTYPE_INT }, \ 646 { "sem_value_max", CTLTYPE_INT }, \ 647 { "sigqueue_max", CTLTYPE_INT }, \ 648 { "timer_max", CTLTYPE_INT }, \ 649 } 650 651 #ifdef _KERNEL 652 653 /* 654 * Declare some common oids. 655 */ 656 extern struct sysctl_oid_list sysctl__children; 657 SYSCTL_DECL(_kern); 658 SYSCTL_DECL(_sysctl); 659 SYSCTL_DECL(_vm); 660 SYSCTL_DECL(_vfs); 661 SYSCTL_DECL(_net); 662 SYSCTL_DECL(_debug); 663 SYSCTL_DECL(_debug_sizeof); 664 SYSCTL_DECL(_dev); 665 SYSCTL_DECL(_hw); 666 SYSCTL_DECL(_hw_bus); 667 SYSCTL_DECL(_machdep); 668 SYSCTL_DECL(_user); 669 SYSCTL_DECL(_compat); 670 SYSCTL_DECL(_lwkt); 671 SYSCTL_DECL(_security); 672 673 /* 674 * Common second-level oids. 675 */ 676 SYSCTL_DECL(_kern_ipc); 677 678 extern char machine[]; 679 extern char osrelease[]; 680 extern char ostype[]; 681 extern char kern_ident[]; 682 683 /* Dynamic oid handling */ 684 struct sysctl_oid *sysctl_add_oid(struct sysctl_ctx_list *clist, 685 struct sysctl_oid_list *parent, int nbr, const char *name, 686 int kind, void *arg1, int arg2, 687 int (*handler) (SYSCTL_HANDLER_ARGS), 688 const char *fmt, const char *descr); 689 void sysctl_rename_oid(struct sysctl_oid *oidp, const char *name); 690 int sysctl_remove_name(struct sysctl_oid *parent, const char *name, int del, 691 int recurse); 692 int sysctl_remove_oid(struct sysctl_oid *oidp, int del, int recurse); 693 int sysctl_ctx_init(struct sysctl_ctx_list *clist); 694 int sysctl_ctx_free(struct sysctl_ctx_list *clist); 695 struct sysctl_ctx_entry *sysctl_ctx_entry_add(struct sysctl_ctx_list *clist, 696 struct sysctl_oid *oidp); 697 struct sysctl_ctx_entry *sysctl_ctx_entry_find(struct sysctl_ctx_list *clist, 698 struct sysctl_oid *oidp); 699 int sysctl_ctx_entry_del(struct sysctl_ctx_list *clist, 700 struct sysctl_oid *oidp); 701 702 int kernel_sysctl(int *name, u_int namelen, void *old, 703 size_t *oldlenp, void *new, size_t newlen, 704 size_t *retval); 705 int kernel_sysctlbyname(char *name, 706 void *old, size_t *oldlenp, void *new, size_t newlen, 707 size_t *retval); 708 int userland_sysctl(int *name, u_int namelen, void *old, 709 size_t *oldlenp, int inkernel, void *new, size_t newlen, 710 size_t *retval); 711 int sysctl_find_oid(int *name, u_int namelen, struct sysctl_oid **noid, 712 int *nindx, struct sysctl_req *req); 713 714 int sysctl_int_range(SYSCTL_HANDLER_ARGS, int low, int high); 715 void _sysctl_xlock(void); 716 void _sysctl_xunlock(void); 717 718 struct sbuf; 719 struct sbuf *sbuf_new_for_sysctl(struct sbuf *, char *, int, 720 struct sysctl_req *); 721 722 #endif /* _KERNEL */ 723 724 #if !defined(_KERNEL) || defined(_KERNEL_VIRTUAL) 725 726 #include <sys/cdefs.h> 727 728 __BEGIN_DECLS 729 int sysctl(const int *, u_int, void *, size_t *, const void *, size_t); 730 int sysctlbyname(const char *, void *, size_t *, const void *, size_t); 731 int sysctlnametomib (const char *, int *, size_t *); 732 __END_DECLS 733 734 #endif /* _KERNEL && _KERNEL_VIRTUAL */ 735 736 #endif /* !_SYS_SYSCTL_H_ */ 737