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 * $Id: sysctl.h,v 1.13 1994/10/02 17:24:58 phk Exp $ 38 */ 39 40 #ifndef _SYS_SYSCTL_H_ 41 #define _SYS_SYSCTL_H_ 42 43 /* 44 * These are for the eproc structure defined below. 45 */ 46 #ifndef KERNEL 47 #include <sys/time.h> 48 #include <sys/ucred.h> 49 #include <sys/proc.h> 50 #include <vm/vm.h> 51 #endif 52 53 /* 54 * Definitions for sysctl call. The sysctl call uses a hierarchical name 55 * for objects that can be examined or modified. The name is expressed as 56 * a sequence of integers. Like a file path name, the meaning of each 57 * component depends on its place in the hierarchy. The top-level and kern 58 * identifiers are defined here, and other identifiers are defined in the 59 * respective subsystem header files. 60 */ 61 62 #define CTL_MAXNAME 12 /* largest number of components supported */ 63 64 /* 65 * Each subsystem defined by sysctl defines a list of variables 66 * for that subsystem. Each name is either a node with further 67 * levels defined below it, or it is a leaf of some particular 68 * type given below. Each sysctl level defines a set of name/type 69 * pairs to be used by sysctl(1) in manipulating the subsystem. 70 */ 71 struct ctlname { 72 char *ctl_name; /* subsystem name */ 73 int ctl_type; /* type of name */ 74 }; 75 #define CTLTYPE_NODE 1 /* name is a node */ 76 #define CTLTYPE_INT 2 /* name describes an integer */ 77 #define CTLTYPE_STRING 3 /* name describes a string */ 78 #define CTLTYPE_QUAD 4 /* name describes a 64-bit number */ 79 #define CTLTYPE_STRUCT 5 /* name describes a structure */ 80 81 /* 82 * Top-level identifiers 83 */ 84 #define CTL_UNSPEC 0 /* unused */ 85 #define CTL_KERN 1 /* "high kernel": proc, limits */ 86 #define CTL_VM 2 /* virtual memory */ 87 #define CTL_FS 3 /* file system, mount type is next */ 88 #define CTL_NET 4 /* network, see socket.h */ 89 #define CTL_DEBUG 5 /* debugging parameters */ 90 #define CTL_HW 6 /* generic cpu/io */ 91 #define CTL_MACHDEP 7 /* machine dependent */ 92 #define CTL_USER 8 /* user-level */ 93 #define CTL_MAXID 9 /* number of valid top-level ids */ 94 95 #define CTL_NAMES { \ 96 { 0, 0 }, \ 97 { "kern", CTLTYPE_NODE }, \ 98 { "vm", CTLTYPE_NODE }, \ 99 { "fs", CTLTYPE_NODE }, \ 100 { "net", CTLTYPE_NODE }, \ 101 { "debug", CTLTYPE_NODE }, \ 102 { "hw", CTLTYPE_NODE }, \ 103 { "machdep", CTLTYPE_NODE }, \ 104 { "user", CTLTYPE_NODE }, \ 105 } 106 107 /* 108 * CTL_KERN identifiers 109 */ 110 #define KERN_OSTYPE 1 /* string: system version */ 111 #define KERN_OSRELEASE 2 /* string: system release */ 112 #define KERN_OSREV 3 /* int: system revision */ 113 #define KERN_VERSION 4 /* string: compile time info */ 114 #define KERN_MAXVNODES 5 /* int: max vnodes */ 115 #define KERN_MAXPROC 6 /* int: max processes */ 116 #define KERN_MAXFILES 7 /* int: max open files */ 117 #define KERN_ARGMAX 8 /* int: max arguments to exec */ 118 #define KERN_SECURELVL 9 /* int: system security level */ 119 #define KERN_HOSTNAME 10 /* string: hostname */ 120 #define KERN_HOSTID 11 /* int: host identifier */ 121 #define KERN_CLOCKRATE 12 /* struct: struct clockrate */ 122 #define KERN_VNODE 13 /* struct: vnode structures */ 123 #define KERN_PROC 14 /* struct: process entries */ 124 #define KERN_FILE 15 /* struct: file entries */ 125 #define KERN_PROF 16 /* node: kernel profiling info */ 126 #define KERN_POSIX1 17 /* int: POSIX.1 version */ 127 #define KERN_NGROUPS 18 /* int: # of supplemental group ids */ 128 #define KERN_JOB_CONTROL 19 /* int: is job control available */ 129 #define KERN_SAVED_IDS 20 /* int: saved set-user/group-ID */ 130 #define KERN_BOOTTIME 21 /* struct: time kernel was booted */ 131 #define KERN_DOMAINNAME 22 /* string: YP domain name */ 132 #define KERN_UPDATEINTERVAL 23 /* int: update process sleep time */ 133 #define KERN_OSRELDATE 24 /* int: OS release date */ 134 #define KERN_NTP_PLL 25 /* node: NTP PLL control */ 135 #define KERN_BOOTFILE 26 /* string: name of booted kernel */ 136 #define KERN_MAXID 27 /* number of valid kern ids */ 137 138 #define CTL_KERN_NAMES { \ 139 { 0, 0 }, \ 140 { "ostype", CTLTYPE_STRING }, \ 141 { "osrelease", CTLTYPE_STRING }, \ 142 { "osrevision", CTLTYPE_INT }, \ 143 { "version", CTLTYPE_STRING }, \ 144 { "maxvnodes", CTLTYPE_INT }, \ 145 { "maxproc", CTLTYPE_INT }, \ 146 { "maxfiles", CTLTYPE_INT }, \ 147 { "argmax", CTLTYPE_INT }, \ 148 { "securelevel", CTLTYPE_INT }, \ 149 { "hostname", CTLTYPE_STRING }, \ 150 { "hostid", CTLTYPE_INT }, \ 151 { "clockrate", CTLTYPE_STRUCT }, \ 152 { "vnode", CTLTYPE_STRUCT }, \ 153 { "proc", CTLTYPE_STRUCT }, \ 154 { "file", CTLTYPE_STRUCT }, \ 155 { "profiling", CTLTYPE_NODE }, \ 156 { "posix1version", CTLTYPE_INT }, \ 157 { "ngroups", CTLTYPE_INT }, \ 158 { "job_control", CTLTYPE_INT }, \ 159 { "saved_ids", CTLTYPE_INT }, \ 160 { "boottime", CTLTYPE_STRUCT }, \ 161 { "domainname", CTLTYPE_STRING }, \ 162 { "update", CTLTYPE_INT }, \ 163 { "osreldate", CTLTYPE_INT }, \ 164 { "ntp_pll", CTLTYPE_NODE }, \ 165 { "bootfile", CTLTYPE_STRING }, \ 166 } 167 168 /* 169 * CTL_FS identifiers 170 */ 171 #define FS_VFSCONF 0 /* get configured filesystems */ 172 #define FS_MAXID 1 /* number of items */ 173 174 #define CTL_FS_NAMES { \ 175 { "vfsconf", CTLTYPE_STRUCT }, \ 176 } 177 178 /* 179 * KERN_PROC subtypes 180 */ 181 #define KERN_PROC_ALL 0 /* everything */ 182 #define KERN_PROC_PID 1 /* by process id */ 183 #define KERN_PROC_PGRP 2 /* by process group id */ 184 #define KERN_PROC_SESSION 3 /* by session of pid */ 185 #define KERN_PROC_TTY 4 /* by controlling tty */ 186 #define KERN_PROC_UID 5 /* by effective uid */ 187 #define KERN_PROC_RUID 6 /* by real uid */ 188 189 /* 190 * KERN_PROC subtype ops return arrays of augmented proc structures: 191 */ 192 struct kinfo_proc { 193 struct proc kp_proc; /* proc structure */ 194 struct eproc { 195 struct proc *e_paddr; /* address of proc */ 196 struct session *e_sess; /* session pointer */ 197 struct pcred e_pcred; /* process credentials */ 198 struct ucred e_ucred; /* current credentials */ 199 #ifdef sparc 200 struct { 201 segsz_t vm_rssize; /* resident set size */ 202 segsz_t vm_tsize; /* text size */ 203 segsz_t vm_dsize; /* data size */ 204 segsz_t vm_ssize; /* stack size */ 205 } e_vm; 206 #else 207 struct vmspace e_vm; /* address space */ 208 #endif 209 pid_t e_ppid; /* parent process id */ 210 pid_t e_pgid; /* process group id */ 211 short e_jobc; /* job control counter */ 212 dev_t e_tdev; /* controlling tty dev */ 213 pid_t e_tpgid; /* tty process group id */ 214 struct session *e_tsess; /* tty session pointer */ 215 #define WMESGLEN 7 216 char e_wmesg[WMESGLEN+1]; /* wchan message */ 217 segsz_t e_xsize; /* text size */ 218 short e_xrssize; /* text rss */ 219 short e_xccount; /* text references */ 220 short e_xswrss; 221 long e_flag; 222 #define EPROC_CTTY 0x01 /* controlling tty vnode active */ 223 #define EPROC_SLEADER 0x02 /* session leader */ 224 char e_login[MAXLOGNAME]; /* setlogin() name */ 225 long e_spare[4]; 226 } kp_eproc; 227 }; 228 229 /* 230 * CTL_HW identifiers 231 */ 232 #define HW_MACHINE 1 /* string: machine class */ 233 #define HW_MODEL 2 /* string: specific machine model */ 234 #define HW_NCPU 3 /* int: number of cpus */ 235 #define HW_BYTEORDER 4 /* int: machine byte order */ 236 #define HW_PHYSMEM 5 /* int: total memory */ 237 #define HW_USERMEM 6 /* int: non-kernel memory */ 238 #define HW_PAGESIZE 7 /* int: software page size */ 239 #define HW_DISKNAMES 8 /* strings: disk drive names */ 240 #define HW_DISKSTATS 9 /* struct: diskstats[] */ 241 #define HW_FLOATINGPT 10 /* int: has HW floating point? */ 242 #define HW_MAXID 11 /* number of valid hw ids */ 243 244 #define CTL_HW_NAMES { \ 245 { 0, 0 }, \ 246 { "machine", CTLTYPE_STRING }, \ 247 { "model", CTLTYPE_STRING }, \ 248 { "ncpu", CTLTYPE_INT }, \ 249 { "byteorder", CTLTYPE_INT }, \ 250 { "physmem", CTLTYPE_INT }, \ 251 { "usermem", CTLTYPE_INT }, \ 252 { "pagesize", CTLTYPE_INT }, \ 253 { "disknames", CTLTYPE_STRUCT }, \ 254 { "diskstats", CTLTYPE_STRUCT }, \ 255 { "floatingpoint", CTLTYPE_INT }, \ 256 } 257 258 /* 259 * CTL_USER definitions 260 */ 261 #define USER_CS_PATH 1 /* string: _CS_PATH */ 262 #define USER_BC_BASE_MAX 2 /* int: BC_BASE_MAX */ 263 #define USER_BC_DIM_MAX 3 /* int: BC_DIM_MAX */ 264 #define USER_BC_SCALE_MAX 4 /* int: BC_SCALE_MAX */ 265 #define USER_BC_STRING_MAX 5 /* int: BC_STRING_MAX */ 266 #define USER_COLL_WEIGHTS_MAX 6 /* int: COLL_WEIGHTS_MAX */ 267 #define USER_EXPR_NEST_MAX 7 /* int: EXPR_NEST_MAX */ 268 #define USER_LINE_MAX 8 /* int: LINE_MAX */ 269 #define USER_RE_DUP_MAX 9 /* int: RE_DUP_MAX */ 270 #define USER_POSIX2_VERSION 10 /* int: POSIX2_VERSION */ 271 #define USER_POSIX2_C_BIND 11 /* int: POSIX2_C_BIND */ 272 #define USER_POSIX2_C_DEV 12 /* int: POSIX2_C_DEV */ 273 #define USER_POSIX2_CHAR_TERM 13 /* int: POSIX2_CHAR_TERM */ 274 #define USER_POSIX2_FORT_DEV 14 /* int: POSIX2_FORT_DEV */ 275 #define USER_POSIX2_FORT_RUN 15 /* int: POSIX2_FORT_RUN */ 276 #define USER_POSIX2_LOCALEDEF 16 /* int: POSIX2_LOCALEDEF */ 277 #define USER_POSIX2_SW_DEV 17 /* int: POSIX2_SW_DEV */ 278 #define USER_POSIX2_UPE 18 /* int: POSIX2_UPE */ 279 #define USER_STREAM_MAX 19 /* int: POSIX2_STREAM_MAX */ 280 #define USER_TZNAME_MAX 20 /* int: POSIX2_TZNAME_MAX */ 281 #define USER_MAXID 21 /* number of valid user ids */ 282 283 #define CTL_USER_NAMES { \ 284 { 0, 0 }, \ 285 { "cs_path", CTLTYPE_STRING }, \ 286 { "bc_base_max", CTLTYPE_INT }, \ 287 { "bc_dim_max", CTLTYPE_INT }, \ 288 { "bc_scale_max", CTLTYPE_INT }, \ 289 { "bc_string_max", CTLTYPE_INT }, \ 290 { "coll_weights_max", CTLTYPE_INT }, \ 291 { "expr_nest_max", CTLTYPE_INT }, \ 292 { "line_max", CTLTYPE_INT }, \ 293 { "re_dup_max", CTLTYPE_INT }, \ 294 { "posix2_version", CTLTYPE_INT }, \ 295 { "posix2_c_bind", CTLTYPE_INT }, \ 296 { "posix2_c_dev", CTLTYPE_INT }, \ 297 { "posix2_char_term", CTLTYPE_INT }, \ 298 { "posix2_fort_dev", CTLTYPE_INT }, \ 299 { "posix2_fort_run", CTLTYPE_INT }, \ 300 { "posix2_localedef", CTLTYPE_INT }, \ 301 { "posix2_sw_dev", CTLTYPE_INT }, \ 302 { "posix2_upe", CTLTYPE_INT }, \ 303 { "stream_max", CTLTYPE_INT }, \ 304 { "tzname_max", CTLTYPE_INT }, \ 305 } 306 307 /* 308 * CTL_DEBUG definitions 309 * 310 * Second level identifier specifies which debug variable. 311 * Third level identifier specifies which stucture component. 312 */ 313 #define CTL_DEBUG_NAME 0 /* string: variable name */ 314 #define CTL_DEBUG_VALUE 1 /* int: variable value */ 315 #define CTL_DEBUG_MAXID 20 316 317 #ifdef KERNEL 318 #if defined(DEBUG) || defined(DIAGNOSTIC) 319 /* 320 * CTL_DEBUG variables. 321 * 322 * These are declared as separate variables so that they can be 323 * individually initialized at the location of their associated 324 * variable. The loader prevents multiple use by issuing errors 325 * if a variable is initialized in more than one place. They are 326 * aggregated into an array in debug_sysctl(), so that it can 327 * conveniently locate them when querried. If more debugging 328 * variables are added, they must also be declared here and also 329 * entered into the array. 330 */ 331 struct ctldebug { 332 char *debugname; /* name of debugging variable */ 333 int *debugvar; /* pointer to debugging variable */ 334 }; 335 extern struct ctldebug debug0, debug1, debug2, debug3, debug4; 336 extern struct ctldebug debug5, debug6, debug7, debug8, debug9; 337 extern struct ctldebug debug10, debug11, debug12, debug13, debug14; 338 extern struct ctldebug debug15, debug16, debug17, debug18, debug19; 339 #endif /* DEBUG */ 340 341 /* 342 * Internal sysctl function calling convention: 343 * 344 * (*sysctlfn)(name, namelen, oldval, oldlenp, newval, newlen); 345 * 346 * The name parameter points at the next component of the name to be 347 * interpreted. The namelen parameter is the number of integers in 348 * the name. 349 */ 350 typedef int (sysctlfn) 351 __P((int *, u_int, void *, size_t *, void *, size_t, struct proc *)); 352 353 int sysctl_int __P((void *, size_t *, void *, size_t, int *)); 354 int sysctl_rdint __P((void *, size_t *, void *, int)); 355 int sysctl_string __P((void *, size_t *, void *, size_t, char *, int)); 356 int sysctl_rdstring __P((void *, size_t *, void *, char *)); 357 int sysctl_rdstruct __P((void *, size_t *, void *, void *, int)); 358 void fill_eproc __P((struct proc *, struct eproc *)); 359 360 int sysctl_clockrate __P((char *, size_t*)); 361 int sysctl_vnode __P((char *, size_t*)); 362 int sysctl_file __P((char *, size_t*)); 363 int sysctl_doproc __P((int *, u_int, char *, size_t*)); 364 365 #else /* !KERNEL */ 366 #include <sys/cdefs.h> 367 368 __BEGIN_DECLS 369 int sysctl __P((int *, u_int, void *, size_t *, void *, size_t)); 370 __END_DECLS 371 #endif /* KERNEL */ 372 #endif /* !_SYS_SYSCTL_H_ */ 373