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 204170 2010-02-21 13:57:02Z ed $ 38 */ 39 40 #ifndef _SYS_SYSCTL_H_ 41 #define _SYS_SYSCTL_H_ 42 43 #ifndef _SYS_TYPES_H_ 44 #include <sys/types.h> 45 #endif 46 #ifndef _SYS_QUEUE_H_ 47 #include <sys/queue.h> 48 #endif 49 50 /* 51 * Definitions for sysctl call. The sysctl call uses a hierarchical name 52 * for objects that can be examined or modified. The name is expressed as 53 * a sequence of integers. Like a file path name, the meaning of each 54 * component depends on its place in the hierarchy. The top-level and kern 55 * identifiers are defined here, and other identifiers are defined in the 56 * respective subsystem header files. 57 */ 58 59 #define CTL_MAXNAME 12 /* largest number of components supported */ 60 61 /* 62 * Each subsystem defined by sysctl defines a list of variables 63 * for that subsystem. Each name is either a node with further 64 * levels defined below it, or it is a leaf of some particular 65 * type given below. Each sysctl level defines a set of name/type 66 * pairs to be used by sysctl(1) in manipulating the subsystem. 67 */ 68 struct ctlname { 69 char *ctl_name; /* subsystem name */ 70 int ctl_type; /* type of name */ 71 }; 72 73 #define CTLTYPE 0xf /* Mask for the type */ 74 #define CTLTYPE_NODE 1 /* name is a node */ 75 #define CTLTYPE_INT 2 /* name describes an integer */ 76 #define CTLTYPE_STRING 3 /* name describes a string */ 77 #define CTLTYPE_QUAD 4 /* name describes a 64-bit number */ 78 #define CTLTYPE_OPAQUE 5 /* name describes a structure */ 79 #define CTLTYPE_STRUCT CTLTYPE_OPAQUE /* name describes a structure */ 80 #define CTLTYPE_UINT 6 /* name describes an unsigned integer */ 81 #define CTLTYPE_LONG 7 /* name describes a long */ 82 #define CTLTYPE_ULONG 8 /* name describes an unsigned long */ 83 #define CTLTYPE_UQUAD 9 /* name describes an unsigned 64-bit number */ 84 85 #define CTLFLAG_RD 0x80000000 /* Allow reads of variable */ 86 #define CTLFLAG_WR 0x40000000 /* Allow writes to the variable */ 87 #define CTLFLAG_RW (CTLFLAG_RD|CTLFLAG_WR) 88 #define CTLFLAG_ANYBODY 0x10000000 /* All users can set this var */ 89 #define CTLFLAG_SECURE 0x08000000 /* Permit set only if securelevel<=0 */ 90 #define CTLFLAG_PRISON 0x04000000 /* Prisoned roots can fiddle */ 91 #define CTLFLAG_DYN 0x02000000 /* Dynamic oid - can be freed */ 92 #define CTLFLAG_SKIP 0x01000000 /* Skip this sysctl when listing */ 93 #define CTLMASK_SECURE 0x00F00000 /* Secure level */ 94 #define CTLFLAG_DYING 0x00010000 /* Oid is being removed */ 95 96 /* 97 * USE THIS instead of a hardwired number from the categories below 98 * to get dynamically assigned sysctl entries using the linker-set 99 * technology. This is the way nearly all new sysctl variables should 100 * be implemented. 101 * e.g. SYSCTL_INT(_parent, OID_AUTO, name, CTLFLAG_RW, &variable, 0, ""); 102 */ 103 #define OID_AUTO (-1) 104 105 #ifdef _KERNEL 106 107 #include <sys/kernel.h> /* for DATA_SET */ 108 109 #define SYSCTL_HANDLER_ARGS struct sysctl_oid *oidp, void *arg1, int arg2, \ 110 struct sysctl_req *req 111 112 /* 113 * This describes the access space for a sysctl request. This is needed 114 * so that we can use the interface from the kernel or from user-space. 115 */ 116 struct sysctl_req { 117 struct thread *td; /* used for access checking */ 118 int lock; /* wiring state */ 119 void *oldptr; 120 size_t oldlen; 121 size_t oldidx; 122 int (*oldfunc)(struct sysctl_req *, const void *, size_t); 123 void *newptr; 124 size_t newlen; 125 size_t newidx; 126 int (*newfunc)(struct sysctl_req *, void *, size_t); 127 size_t validlen; 128 int flags; 129 }; 130 131 SLIST_HEAD(sysctl_oid_list, sysctl_oid); 132 133 /* 134 * This describes one "oid" in the MIB tree. Potentially more nodes can 135 * be hidden behind it, expanded by the handler. 136 */ 137 struct sysctl_oid { 138 struct sysctl_oid_list *oid_parent; 139 SLIST_ENTRY(sysctl_oid) oid_link; 140 int oid_number; 141 int oid_kind; 142 void *oid_arg1; 143 int oid_arg2; 144 const char *oid_name; 145 int (*oid_handler)(SYSCTL_HANDLER_ARGS); 146 const char *oid_fmt; 147 int oid_refcnt; 148 u_int oid_running; 149 const char *oid_descr; 150 }; 151 152 #define SYSCTL_IN(r, p, l) (r->newfunc)(r, p, l) 153 #define SYSCTL_OUT(r, p, l) (r->oldfunc)(r, p, l) 154 155 int sysctl_handle_int(SYSCTL_HANDLER_ARGS); 156 int sysctl_handle_long(SYSCTL_HANDLER_ARGS); 157 int sysctl_handle_quad(SYSCTL_HANDLER_ARGS); 158 int sysctl_handle_intptr(SYSCTL_HANDLER_ARGS); 159 int sysctl_handle_string(SYSCTL_HANDLER_ARGS); 160 int sysctl_handle_opaque(SYSCTL_HANDLER_ARGS); 161 162 /* 163 * These functions are used to add/remove an oid from the mib. 164 */ 165 void sysctl_register_oid(struct sysctl_oid *oidp); 166 void sysctl_unregister_oid(struct sysctl_oid *oidp); 167 168 /* Declare a static oid to allow child oids to be added to it. */ 169 #define SYSCTL_DECL(name) \ 170 extern struct sysctl_oid_list sysctl_##name##_children 171 172 /* Hide these in macros */ 173 #define SYSCTL_SET_CHILDREN(oid_ptr, children) do { \ 174 (oid_ptr)->oid_arg1 = (children); \ 175 } while(0) 176 #define SYSCTL_CHILDREN(oid_ptr) (struct sysctl_oid_list *) \ 177 (oid_ptr)->oid_arg1 178 #define SYSCTL_STATIC_CHILDREN(oid_name) \ 179 (&sysctl_##oid_name##_children) 180 181 /* === Structs and macros related to context handling === */ 182 183 /* All dynamically created sysctls can be tracked in a context list. */ 184 struct sysctl_ctx_entry { 185 struct sysctl_oid *entry; 186 TAILQ_ENTRY(sysctl_ctx_entry) link; 187 }; 188 189 TAILQ_HEAD(sysctl_ctx_list, sysctl_ctx_entry); 190 191 #define SYSCTL_NODE_CHILDREN(parent, name) \ 192 sysctl_##parent##_##name##_children 193 194 #ifndef NO_SYSCTL_DESCR 195 #define __DESCR(d) d 196 #else 197 #define __DESCR(d) "" 198 #endif 199 200 /* This constructs a "raw" MIB oid. */ 201 #define SYSCTL_OID(parent, nbr, name, kind, a1, a2, handler, fmt, descr)\ 202 static struct sysctl_oid sysctl__##parent##_##name = { \ 203 &sysctl_##parent##_children, \ 204 { NULL }, \ 205 nbr, \ 206 kind, \ 207 a1, \ 208 a2, \ 209 #name, \ 210 handler, \ 211 fmt, \ 212 0, \ 213 0, \ 214 __DESCR(descr) \ 215 }; \ 216 DATA_SET(sysctl_set, sysctl__##parent##_##name) 217 218 #define SYSCTL_ADD_OID(ctx, parent, nbr, name, kind, a1, a2, handler, fmt, descr) \ 219 sysctl_add_oid(ctx, parent, nbr, name, kind, a1, a2, handler, fmt, descr); 220 221 /* This constructs a node from which other oids can hang. */ 222 #define SYSCTL_NODE(parent, nbr, name, access, handler, descr) \ 223 struct sysctl_oid_list SYSCTL_NODE_CHILDREN(parent, name); \ 224 SYSCTL_OID(parent, nbr, name, CTLTYPE_NODE|(access), \ 225 (void*)&SYSCTL_NODE_CHILDREN(parent, name), 0, handler, "N", descr) 226 227 #define SYSCTL_ADD_NODE(ctx, parent, nbr, name, access, handler, descr) \ 228 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_NODE|(access), \ 229 0, 0, handler, "N", descr) 230 231 /* Oid for a string. len can be 0 to indicate '\0' termination. */ 232 #define SYSCTL_STRING(parent, nbr, name, access, arg, len, descr) \ 233 SYSCTL_OID(parent, nbr, name, CTLTYPE_STRING|(access), \ 234 arg, len, sysctl_handle_string, "A", descr) 235 236 #define SYSCTL_ADD_STRING(ctx, parent, nbr, name, access, arg, len, descr) \ 237 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_STRING|(access), \ 238 arg, len, sysctl_handle_string, "A", descr) 239 240 /* Oid for an int. If ptr is NULL, val is returned. */ 241 #define SYSCTL_INT(parent, nbr, name, access, ptr, val, descr) \ 242 SYSCTL_OID(parent, nbr, name, CTLTYPE_INT|(access), \ 243 ptr, val, sysctl_handle_int, "I", descr) 244 245 #define SYSCTL_ADD_INT(ctx, parent, nbr, name, access, ptr, val, descr) \ 246 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_INT|(access), \ 247 ptr, val, sysctl_handle_int, "I", descr) 248 249 /* Oid for a quad. If ptr is NULL, val is returned. */ 250 #define SYSCTL_QUAD(parent, nbr, name, access, ptr, val, descr) \ 251 SYSCTL_OID(parent, nbr, name, CTLTYPE_QUAD|(access), \ 252 ptr, val, sysctl_handle_quad, "Q", descr) 253 254 #define SYSCTL_ADD_QUAD(ctx, parent, nbr, name, access, ptr, val, descr) \ 255 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_QUAD|(access), \ 256 ptr, val, sysctl_handle_quad, "Q", descr) 257 258 /* Oid for an unsigned quad. If ptr is NULL, val is returned. */ 259 #define SYSCTL_UQUAD(parent, nbr, name, access, ptr, val, descr) \ 260 SYSCTL_OID(parent, nbr, name, CTLTYPE_UQUAD|(access), \ 261 ptr, val, sysctl_handle_quad, "QU", descr) 262 263 #define SYSCTL_ADD_UQUAD(ctx, parent, nbr, name, access, ptr, val, descr) \ 264 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_UQUAD|(access), \ 265 ptr, val, sysctl_handle_quad, "QU", descr) 266 267 /* Oid for an unsigned int. If ptr is NULL, val is returned. */ 268 #define SYSCTL_UINT(parent, nbr, name, access, ptr, val, descr) \ 269 SYSCTL_OID(parent, nbr, name, CTLTYPE_UINT|(access), \ 270 ptr, val, sysctl_handle_int, "IU", descr) 271 272 #define SYSCTL_ADD_UINT(ctx, parent, nbr, name, access, ptr, val, descr) \ 273 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_UINT|(access), \ 274 ptr, val, sysctl_handle_int, "IU", descr) 275 276 /* Oid for a long. The pointer must be non NULL. */ 277 #define SYSCTL_LONG(parent, nbr, name, access, ptr, val, descr) \ 278 SYSCTL_OID(parent, nbr, name, CTLTYPE_LONG|(access), \ 279 ptr, val, sysctl_handle_long, "L", descr) 280 281 #define SYSCTL_ADD_LONG(ctx, parent, nbr, name, access, ptr, descr) \ 282 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_LONG|(access), \ 283 ptr, 0, sysctl_handle_long, "L", descr) 284 285 /* Oid for a long. The pointer must be non NULL. */ 286 #define SYSCTL_ULONG(parent, nbr, name, access, ptr, val, descr) \ 287 SYSCTL_OID(parent, nbr, name, CTLTYPE_ULONG|(access), \ 288 ptr, val, sysctl_handle_long, "LU", descr) 289 290 #define SYSCTL_ADD_ULONG(ctx, parent, nbr, name, access, ptr, descr) \ 291 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_ULONG|(access), \ 292 ptr, 0, sysctl_handle_long, "LU", descr) 293 294 /* Oid for an opaque object. Specified by a pointer and a length. */ 295 #define SYSCTL_OPAQUE(parent, nbr, name, access, ptr, len, fmt, descr) \ 296 SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|(access), \ 297 ptr, len, sysctl_handle_opaque, fmt, descr) 298 299 #define SYSCTL_ADD_OPAQUE(ctx, parent, nbr, name, access, ptr, len, fmt, descr) \ 300 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_OPAQUE|(access), \ 301 ptr, len, sysctl_handle_opaque, fmt, descr) 302 303 /* Oid for a struct. Specified by a pointer and a type. */ 304 #define SYSCTL_STRUCT(parent, nbr, name, access, ptr, type, descr) \ 305 SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|(access), \ 306 ptr, sizeof(struct type), sysctl_handle_opaque, \ 307 "S," #type, descr) 308 309 #define SYSCTL_ADD_STRUCT(ctx, parent, nbr, name, access, ptr, type, descr) \ 310 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_OPAQUE|(access), \ 311 ptr, sizeof(struct type), sysctl_handle_opaque, "S," #type, descr) 312 313 /* Oid for a procedure. Specified by a pointer and an arg. */ 314 #define SYSCTL_PROC(parent, nbr, name, access, ptr, arg, handler, fmt, descr) \ 315 SYSCTL_OID(parent, nbr, name, (access), \ 316 ptr, arg, handler, fmt, descr) 317 318 #define SYSCTL_ADD_PROC(ctx, parent, nbr, name, access, ptr, arg, handler, fmt, descr) \ 319 sysctl_add_oid(ctx, parent, nbr, name, (access), \ 320 ptr, arg, handler, fmt, descr) 321 322 #endif /* _KERNEL */ 323 324 /* 325 * Top-level identifiers 326 */ 327 #define CTL_UNSPEC 0 /* unused */ 328 #define CTL_KERN 1 /* "high kernel": proc, limits */ 329 #define CTL_VM 2 /* virtual memory */ 330 #define CTL_VFS 3 /* file system, mount type is next */ 331 #define CTL_NET 4 /* network, see socket.h */ 332 #define CTL_DEBUG 5 /* debugging parameters */ 333 #define CTL_HW 6 /* generic cpu/io */ 334 #define CTL_MACHDEP 7 /* machine dependent */ 335 #define CTL_USER 8 /* user-level */ 336 #define CTL_P1003_1B 9 /* POSIX 1003.1B */ 337 #define CTL_LWKT 10 /* light weight kernel threads */ 338 #define CTL_MAXID 11 /* number of valid top-level ids */ 339 340 #define CTL_NAMES { \ 341 { 0, 0 }, \ 342 { "kern", CTLTYPE_NODE }, \ 343 { "vm", CTLTYPE_NODE }, \ 344 { "vfs", CTLTYPE_NODE }, \ 345 { "net", CTLTYPE_NODE }, \ 346 { "debug", CTLTYPE_NODE }, \ 347 { "hw", CTLTYPE_NODE }, \ 348 { "machdep", CTLTYPE_NODE }, \ 349 { "user", CTLTYPE_NODE }, \ 350 { "p1003_1b", CTLTYPE_NODE }, \ 351 { "lwkt", CTLTYPE_NODE }, \ 352 } 353 354 /* 355 * CTL_KERN identifiers 356 */ 357 #define KERN_OSTYPE 1 /* string: system version */ 358 #define KERN_OSRELEASE 2 /* string: system release */ 359 #define KERN_OSREV 3 /* int: system revision */ 360 #define KERN_VERSION 4 /* string: compile time info */ 361 #define KERN_MAXVNODES 5 /* int: max vnodes */ 362 #define KERN_MAXPROC 6 /* int: max processes */ 363 #define KERN_MAXFILES 7 /* int: max open files */ 364 #define KERN_ARGMAX 8 /* int: max arguments to exec */ 365 #define KERN_SECURELVL 9 /* int: system security level */ 366 #define KERN_HOSTNAME 10 /* string: hostname */ 367 #define KERN_HOSTID 11 /* int: host identifier */ 368 #define KERN_CLOCKRATE 12 /* struct: struct clockrate */ 369 #define KERN_VNODE 13 /* struct: vnode structures */ 370 #define KERN_PROC 14 /* struct: process entries */ 371 #define KERN_FILE 15 /* struct: file entries */ 372 #define KERN_PROF 16 /* node: kernel profiling info */ 373 #define KERN_POSIX1 17 /* int: POSIX.1 version */ 374 #define KERN_NGROUPS 18 /* int: # of supplemental group ids */ 375 #define KERN_JOB_CONTROL 19 /* int: is job control available */ 376 #define KERN_SAVED_IDS 20 /* int: saved set-user/group-ID */ 377 #define KERN_BOOTTIME 21 /* struct: time kernel was booted */ 378 #define KERN_NISDOMAINNAME 22 /* string: YP domain name */ 379 #define KERN_UPDATEINTERVAL 23 /* int: update process sleep time */ 380 #define KERN_OSRELDATE 24 /* int: OS release date */ 381 #define KERN_NTP_PLL 25 /* node: NTP PLL control */ 382 #define KERN_BOOTFILE 26 /* string: name of booted kernel */ 383 #define KERN_MAXFILESPERPROC 27 /* int: max open files per proc */ 384 #define KERN_MAXPROCPERUID 28 /* int: max processes per uid */ 385 #define KERN_DUMPDEV 29 /* udev_t: device to dump on */ 386 #define KERN_IPC 30 /* node: anything related to IPC */ 387 #define KERN_DUMMY 31 /* unused */ 388 #define KERN_PS_STRINGS 32 /* int: address of PS_STRINGS */ 389 #define KERN_USRSTACK 33 /* int: address of USRSTACK */ 390 #define KERN_LOGSIGEXIT 34 /* int: do we log sigexit procs? */ 391 #define KERN_IOV_MAX 35 /* int: value of UIO_MAXIOV */ 392 #define KERN_MAXPOSIXLOCKSPERUID 36 /* int: max POSIX locks per uid */ 393 #define KERN_MAXID 37 /* number of valid kern ids */ 394 395 #define CTL_KERN_NAMES { \ 396 { 0, 0 }, \ 397 { "ostype", CTLTYPE_STRING }, \ 398 { "osrelease", CTLTYPE_STRING }, \ 399 { "osrevision", CTLTYPE_INT }, \ 400 { "version", CTLTYPE_STRING }, \ 401 { "maxvnodes", CTLTYPE_INT }, \ 402 { "maxproc", CTLTYPE_INT }, \ 403 { "maxfiles", CTLTYPE_INT }, \ 404 { "argmax", CTLTYPE_INT }, \ 405 { "securelevel", CTLTYPE_INT }, \ 406 { "hostname", CTLTYPE_STRING }, \ 407 { "hostid", CTLTYPE_UINT }, \ 408 { "clockrate", CTLTYPE_STRUCT }, \ 409 { "vnode", CTLTYPE_STRUCT }, \ 410 { "proc", CTLTYPE_STRUCT }, \ 411 { "file", CTLTYPE_STRUCT }, \ 412 { "profiling", CTLTYPE_NODE }, \ 413 { "posix1version", CTLTYPE_INT }, \ 414 { "ngroups", CTLTYPE_INT }, \ 415 { "job_control", CTLTYPE_INT }, \ 416 { "saved_ids", CTLTYPE_INT }, \ 417 { "boottime", CTLTYPE_STRUCT }, \ 418 { "nisdomainname", CTLTYPE_STRING }, \ 419 { "update", CTLTYPE_INT }, \ 420 { "osreldate", CTLTYPE_INT }, \ 421 { "ntp_pll", CTLTYPE_NODE }, \ 422 { "bootfile", CTLTYPE_STRING }, \ 423 { "maxfilesperproc", CTLTYPE_INT }, \ 424 { "maxprocperuid", CTLTYPE_INT }, \ 425 { "dumpdev", CTLTYPE_STRUCT }, /* we lie; don't print as int */ \ 426 { "ipc", CTLTYPE_NODE }, \ 427 { "dummy", CTLTYPE_INT }, \ 428 { "ps_strings", CTLTYPE_INT }, \ 429 { "usrstack", CTLTYPE_INT }, \ 430 { "logsigexit", CTLTYPE_INT }, \ 431 { "iov_max", CTLTYPE_INT }, \ 432 { "maxposixlocksperuid", CTLTYPE_INT }, \ 433 } 434 435 /* 436 * CTL_VFS identifiers 437 */ 438 #define CTL_VFS_NAMES { \ 439 { "vfsconf", CTLTYPE_STRUCT }, \ 440 } 441 442 /* 443 * KERN_PROC subtypes 444 */ 445 #define KERN_PROC_ALL 0 /* everything */ 446 #define KERN_PROC_PID 1 /* by process id */ 447 #define KERN_PROC_PGRP 2 /* by process group id */ 448 #define KERN_PROC_SESSION 3 /* by session of pid */ 449 #define KERN_PROC_TTY 4 /* by controlling tty */ 450 #define KERN_PROC_UID 5 /* by effective uid */ 451 #define KERN_PROC_RUID 6 /* by real uid */ 452 #define KERN_PROC_ARGS 7 /* get/set arguments/proctitle */ 453 #define KERN_PROC_CWD 8 /* get cwd */ 454 #define KERN_PROC_PATHNAME 9 /* path to executable */ 455 456 457 #define KERN_PROC_FLAGMASK 0x10 458 #define KERN_PROC_FLAG_LWP 0x10 459 460 /* 461 * KERN_IPC identifiers 462 */ 463 #define KIPC_MAXSOCKBUF 1 /* int: max size of a socket buffer */ 464 #define KIPC_SOCKBUF_WASTE 2 /* int: wastage factor in sockbuf */ 465 #define KIPC_SOMAXCONN 3 /* int: max length of connection q */ 466 #define KIPC_MAX_LINKHDR 4 /* int: max length of link header */ 467 #define KIPC_MAX_PROTOHDR 5 /* int: max length of network header */ 468 #define KIPC_MAX_HDR 6 /* int: max total length of headers */ 469 #define KIPC_MAX_DATALEN 7 /* int: max length of data? */ 470 #define KIPC_MBSTAT 8 /* struct: mbuf usage statistics */ 471 #define KIPC_NMBCLUSTERS 9 /* int: maximum mbuf clusters */ 472 473 /* 474 * CTL_HW identifiers 475 */ 476 #define HW_MACHINE 1 /* string: machine class */ 477 #define HW_MODEL 2 /* string: specific machine model */ 478 #define HW_NCPU 3 /* int: number of cpus */ 479 #define HW_BYTEORDER 4 /* int: machine byte order */ 480 #define HW_PHYSMEM 5 /* int: total memory */ 481 #define HW_USERMEM 6 /* int: non-kernel memory */ 482 #define HW_PAGESIZE 7 /* int: software page size */ 483 #define HW_DISKNAMES 8 /* strings: disk drive names */ 484 #define HW_DISKSTATS 9 /* struct: diskstats[] */ 485 #define HW_FLOATINGPT 10 /* int: has HW floating point? */ 486 #define HW_MACHINE_ARCH 11 /* string: machine architecture */ 487 #define HW_MACHINE_PLATFORM 12 /* string: platform architecture */ 488 #define HW_SENSORS 13 /* node: hardware sensors */ 489 #define HW_MAXID 14 /* number of valid hw ids */ 490 491 #define CTL_HW_NAMES { \ 492 { 0, 0 }, \ 493 { "machine", CTLTYPE_STRING }, \ 494 { "model", CTLTYPE_STRING }, \ 495 { "ncpu", CTLTYPE_INT }, \ 496 { "byteorder", CTLTYPE_INT }, \ 497 { "physmem", CTLTYPE_ULONG }, \ 498 { "usermem", CTLTYPE_UINT }, \ 499 { "pagesize", CTLTYPE_INT }, \ 500 { "disknames", CTLTYPE_STRUCT }, \ 501 { "diskstats", CTLTYPE_STRUCT }, \ 502 { "floatingpoint", CTLTYPE_INT }, \ 503 { "arch", CTLTYPE_STRING }, \ 504 { "platform", CTLTYPE_STRING }, \ 505 { "sensors", CTLTYPE_NODE }, \ 506 } 507 508 /* 509 * CTL_USER definitions 510 */ 511 #define USER_CS_PATH 1 /* string: _CS_PATH */ 512 #define USER_BC_BASE_MAX 2 /* int: BC_BASE_MAX */ 513 #define USER_BC_DIM_MAX 3 /* int: BC_DIM_MAX */ 514 #define USER_BC_SCALE_MAX 4 /* int: BC_SCALE_MAX */ 515 #define USER_BC_STRING_MAX 5 /* int: BC_STRING_MAX */ 516 #define USER_COLL_WEIGHTS_MAX 6 /* int: COLL_WEIGHTS_MAX */ 517 #define USER_EXPR_NEST_MAX 7 /* int: EXPR_NEST_MAX */ 518 #define USER_LINE_MAX 8 /* int: LINE_MAX */ 519 #define USER_RE_DUP_MAX 9 /* int: RE_DUP_MAX */ 520 #define USER_POSIX2_VERSION 10 /* int: POSIX2_VERSION */ 521 #define USER_POSIX2_C_BIND 11 /* int: POSIX2_C_BIND */ 522 #define USER_POSIX2_C_DEV 12 /* int: POSIX2_C_DEV */ 523 #define USER_POSIX2_CHAR_TERM 13 /* int: POSIX2_CHAR_TERM */ 524 #define USER_POSIX2_FORT_DEV 14 /* int: POSIX2_FORT_DEV */ 525 #define USER_POSIX2_FORT_RUN 15 /* int: POSIX2_FORT_RUN */ 526 #define USER_POSIX2_LOCALEDEF 16 /* int: POSIX2_LOCALEDEF */ 527 #define USER_POSIX2_SW_DEV 17 /* int: POSIX2_SW_DEV */ 528 #define USER_POSIX2_UPE 18 /* int: POSIX2_UPE */ 529 #define USER_STREAM_MAX 19 /* int: POSIX2_STREAM_MAX */ 530 #define USER_TZNAME_MAX 20 /* int: POSIX2_TZNAME_MAX */ 531 #define USER_MAXID 21 /* number of valid user ids */ 532 533 #define CTL_USER_NAMES { \ 534 { 0, 0 }, \ 535 { "cs_path", CTLTYPE_STRING }, \ 536 { "bc_base_max", CTLTYPE_INT }, \ 537 { "bc_dim_max", CTLTYPE_INT }, \ 538 { "bc_scale_max", CTLTYPE_INT }, \ 539 { "bc_string_max", CTLTYPE_INT }, \ 540 { "coll_weights_max", CTLTYPE_INT }, \ 541 { "expr_nest_max", CTLTYPE_INT }, \ 542 { "line_max", CTLTYPE_INT }, \ 543 { "re_dup_max", CTLTYPE_INT }, \ 544 { "posix2_version", CTLTYPE_INT }, \ 545 { "posix2_c_bind", CTLTYPE_INT }, \ 546 { "posix2_c_dev", CTLTYPE_INT }, \ 547 { "posix2_char_term", CTLTYPE_INT }, \ 548 { "posix2_fort_dev", CTLTYPE_INT }, \ 549 { "posix2_fort_run", CTLTYPE_INT }, \ 550 { "posix2_localedef", CTLTYPE_INT }, \ 551 { "posix2_sw_dev", CTLTYPE_INT }, \ 552 { "posix2_upe", CTLTYPE_INT }, \ 553 { "stream_max", CTLTYPE_INT }, \ 554 { "tzname_max", CTLTYPE_INT }, \ 555 } 556 557 #define CTL_P1003_1B_ASYNCHRONOUS_IO 1 /* boolean */ 558 #define CTL_P1003_1B_MAPPED_FILES 2 /* boolean */ 559 #define CTL_P1003_1B_MEMLOCK 3 /* boolean */ 560 #define CTL_P1003_1B_MEMLOCK_RANGE 4 /* boolean */ 561 #define CTL_P1003_1B_MEMORY_PROTECTION 5 /* boolean */ 562 #define CTL_P1003_1B_MESSAGE_PASSING 6 /* boolean */ 563 #define CTL_P1003_1B_PRIORITIZED_IO 7 /* boolean */ 564 #define CTL_P1003_1B_PRIORITY_SCHEDULING 8 /* boolean */ 565 #define CTL_P1003_1B_REALTIME_SIGNALS 9 /* boolean */ 566 #define CTL_P1003_1B_SEMAPHORES 10 /* boolean */ 567 #define CTL_P1003_1B_FSYNC 11 /* boolean */ 568 #define CTL_P1003_1B_SHARED_MEMORY_OBJECTS 12 /* boolean */ 569 #define CTL_P1003_1B_SYNCHRONIZED_IO 13 /* boolean */ 570 #define CTL_P1003_1B_TIMERS 14 /* boolean */ 571 #define CTL_P1003_1B_AIO_LISTIO_MAX 15 /* int */ 572 #define CTL_P1003_1B_AIO_MAX 16 /* int */ 573 #define CTL_P1003_1B_AIO_PRIO_DELTA_MAX 17 /* int */ 574 #define CTL_P1003_1B_DELAYTIMER_MAX 18 /* int */ 575 #define CTL_P1003_1B_UNUSED1 19 /* int */ 576 #define CTL_P1003_1B_PAGESIZE 20 /* int */ 577 #define CTL_P1003_1B_RTSIG_MAX 21 /* int */ 578 #define CTL_P1003_1B_SEM_NSEMS_MAX 22 /* int */ 579 #define CTL_P1003_1B_SEM_VALUE_MAX 23 /* int */ 580 #define CTL_P1003_1B_SIGQUEUE_MAX 24 /* int */ 581 #define CTL_P1003_1B_TIMER_MAX 25 /* int */ 582 583 #define CTL_P1003_1B_MAXID 26 584 585 #define CTL_P1003_1B_NAMES { \ 586 { 0, 0 }, \ 587 { "asynchronous_io", CTLTYPE_INT }, \ 588 { "mapped_files", CTLTYPE_INT }, \ 589 { "memlock", CTLTYPE_INT }, \ 590 { "memlock_range", CTLTYPE_INT }, \ 591 { "memory_protection", CTLTYPE_INT }, \ 592 { "message_passing", CTLTYPE_INT }, \ 593 { "prioritized_io", CTLTYPE_INT }, \ 594 { "priority_scheduling", CTLTYPE_INT }, \ 595 { "realtime_signals", CTLTYPE_INT }, \ 596 { "semaphores", CTLTYPE_INT }, \ 597 { "fsync", CTLTYPE_INT }, \ 598 { "shared_memory_objects", CTLTYPE_INT }, \ 599 { "synchronized_io", CTLTYPE_INT }, \ 600 { "timers", CTLTYPE_INT }, \ 601 { "aio_listio_max", CTLTYPE_INT }, \ 602 { "aio_max", CTLTYPE_INT }, \ 603 { "aio_prio_delta_max", CTLTYPE_INT }, \ 604 { "delaytimer_max", CTLTYPE_INT }, \ 605 { "unused1", CTLTYPE_INT }, \ 606 { "pagesize", CTLTYPE_INT }, \ 607 { "rtsig_max", CTLTYPE_INT }, \ 608 { "nsems_max", CTLTYPE_INT }, \ 609 { "sem_value_max", CTLTYPE_INT }, \ 610 { "sigqueue_max", CTLTYPE_INT }, \ 611 { "timer_max", CTLTYPE_INT }, \ 612 } 613 614 #ifdef _KERNEL 615 616 /* 617 * Declare some common oids. 618 */ 619 extern struct sysctl_oid_list sysctl__children; 620 SYSCTL_DECL(_kern); 621 SYSCTL_DECL(_sysctl); 622 SYSCTL_DECL(_vm); 623 SYSCTL_DECL(_vfs); 624 SYSCTL_DECL(_net); 625 SYSCTL_DECL(_debug); 626 SYSCTL_DECL(_debug_sizeof); 627 SYSCTL_DECL(_dev); 628 SYSCTL_DECL(_hw); 629 SYSCTL_DECL(_hw_bus); 630 SYSCTL_DECL(_machdep); 631 SYSCTL_DECL(_user); 632 SYSCTL_DECL(_compat); 633 SYSCTL_DECL(_lwkt); 634 SYSCTL_DECL(_security); 635 SYSCTL_DECL(_dsched); 636 637 /* 638 * Common second-level oids. 639 */ 640 SYSCTL_DECL(_kern_ipc); 641 642 extern char machine[]; 643 extern char osrelease[]; 644 extern char ostype[]; 645 extern char kern_ident[]; 646 647 /* Dynamic oid handling */ 648 struct sysctl_oid *sysctl_add_oid(struct sysctl_ctx_list *clist, 649 struct sysctl_oid_list *parent, int nbr, const char *name, 650 int kind, void *arg1, int arg2, 651 int (*handler) (SYSCTL_HANDLER_ARGS), 652 const char *fmt, const char *descr); 653 void sysctl_rename_oid(struct sysctl_oid *oidp, const char *name); 654 int sysctl_remove_name(struct sysctl_oid *parent, const char *name, int del, 655 int recurse); 656 int sysctl_remove_oid(struct sysctl_oid *oidp, int del, int recurse); 657 int sysctl_ctx_init(struct sysctl_ctx_list *clist); 658 int sysctl_ctx_free(struct sysctl_ctx_list *clist); 659 struct sysctl_ctx_entry *sysctl_ctx_entry_add(struct sysctl_ctx_list *clist, 660 struct sysctl_oid *oidp); 661 struct sysctl_ctx_entry *sysctl_ctx_entry_find(struct sysctl_ctx_list *clist, 662 struct sysctl_oid *oidp); 663 int sysctl_ctx_entry_del(struct sysctl_ctx_list *clist, 664 struct sysctl_oid *oidp); 665 666 int kernel_sysctl(int *name, u_int namelen, void *old, 667 size_t *oldlenp, void *new, size_t newlen, 668 size_t *retval); 669 int kernel_sysctlbyname(char *name, 670 void *old, size_t *oldlenp, void *new, size_t newlen, 671 size_t *retval); 672 int userland_sysctl(int *name, u_int namelen, void *old, 673 size_t *oldlenp, int inkernel, void *new, size_t newlen, 674 size_t *retval); 675 int sysctl_find_oid(int *name, u_int namelen, struct sysctl_oid **noid, 676 int *nindx, struct sysctl_req *req); 677 678 int sysctl_int_range(SYSCTL_HANDLER_ARGS, int low, int high); 679 680 struct sbuf; 681 struct sbuf *sbuf_new_for_sysctl(struct sbuf *, char *, int, 682 struct sysctl_req *); 683 684 #endif /* _KERNEL */ 685 686 #if !defined(_KERNEL) || defined(_KERNEL_VIRTUAL) 687 688 #include <sys/cdefs.h> 689 690 __BEGIN_DECLS 691 int sysctl(const int *, u_int, void *, size_t *, const void *, size_t); 692 int sysctlbyname(const char *, void *, size_t *, const void *, size_t); 693 int sysctlnametomib (const char *, int *, size_t *); 694 __END_DECLS 695 696 #endif /* _KERNEL && _KERNEL_VIRTUAL */ 697 698 #endif /* !_SYS_SYSCTL_H_ */ 699