1 /* $NetBSD: sysctl.h,v 1.217 2015/09/26 20:28:37 christos Exp $ */ 2 3 /* 4 * Copyright (c) 1989, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * Mike Karels at Berkeley Software Design, Inc. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * @(#)sysctl.h 8.1 (Berkeley) 6/2/93 35 */ 36 37 #ifndef _SYS_SYSCTL_H_ 38 #define _SYS_SYSCTL_H_ 39 40 #include <sys/param.h> /* precautionary upon removal from ucred.h */ 41 #include <sys/proc.h> /* Needed for things like P_ZOMBIE() and LW_SINTR */ 42 #include <uvm/uvm_param.h> 43 44 #if defined(_KERNEL) || defined(_KMEMUSER) 45 /* 46 * These are for the eproc structure defined below. 47 */ 48 #include <sys/time.h> 49 #include <sys/ucred.h> 50 #include <sys/ucontext.h> 51 #include <sys/mallocvar.h> 52 #include <uvm/uvm_extern.h> 53 #endif 54 55 56 /* For offsetof() */ 57 #if defined(_KERNEL) || defined(_STANDALONE) 58 #include <sys/systm.h> 59 #else 60 #include <stddef.h> 61 #include <stdbool.h> 62 #endif 63 64 /* 65 * Definitions for sysctl call. The sysctl call uses a hierarchical name 66 * for objects that can be examined or modified. The name is expressed as 67 * a sequence of integers. Like a file path name, the meaning of each 68 * component depends on its place in the hierarchy. The top-level and kern 69 * identifiers are defined here, and other identifiers are defined in the 70 * respective subsystem header files. 71 */ 72 73 struct sysctlnode; 74 75 #define CTL_MAXNAME 12 /* largest number of components supported */ 76 #define SYSCTL_NAMELEN 32 /* longest name allowed for a node */ 77 78 #define CREATE_BASE (1024) /* start of dynamic mib allocation */ 79 #define SYSCTL_DEFSIZE 8 /* initial size of a child set */ 80 81 /* 82 * Each subsystem defined by sysctl defines a list of variables 83 * for that subsystem. Each name is either a node with further 84 * levels defined below it, or it is a leaf of some particular 85 * type given below. Each sysctl level defines a set of name/type 86 * pairs to be used by sysctl(1) in manipulating the subsystem. 87 */ 88 struct ctlname { 89 const char *ctl_name; /* subsystem name */ 90 int ctl_type; /* type of name */ 91 }; 92 #define CTLTYPE_NODE 1 /* name is a node */ 93 #define CTLTYPE_INT 2 /* name describes an integer */ 94 #define CTLTYPE_STRING 3 /* name describes a string */ 95 #define CTLTYPE_QUAD 4 /* name describes a 64-bit number */ 96 #define CTLTYPE_STRUCT 5 /* name describes a structure */ 97 #define CTLTYPE_BOOL 6 /* name describes a bool */ 98 99 #ifdef _LP64 100 #define CTLTYPE_LONG CTLTYPE_QUAD 101 #else 102 #define CTLTYPE_LONG CTLTYPE_INT 103 #endif 104 105 /* 106 * Flags that apply to each node, governing access and other features 107 */ 108 #define CTLFLAG_READONLY 0x00000000 109 /* #define CTLFLAG_UNUSED1 0x00000010 */ 110 /* #define CTLFLAG_UNUSED2 0x00000020 */ 111 /* #define CTLFLAG_READ* 0x00000040 */ 112 #define CTLFLAG_READWRITE 0x00000070 113 #define CTLFLAG_ANYWRITE 0x00000080 114 #define CTLFLAG_PRIVATE 0x00000100 115 #define CTLFLAG_PERMANENT 0x00000200 116 #define CTLFLAG_OWNDATA 0x00000400 117 #define CTLFLAG_IMMEDIATE 0x00000800 118 #define CTLFLAG_HEX 0x00001000 119 #define CTLFLAG_ROOT 0x00002000 120 #define CTLFLAG_ANYNUMBER 0x00004000 121 #define CTLFLAG_HIDDEN 0x00008000 122 #define CTLFLAG_ALIAS 0x00010000 123 #define CTLFLAG_MMAP 0x00020000 124 #define CTLFLAG_OWNDESC 0x00040000 125 #define CTLFLAG_UNSIGNED 0x00080000 126 127 /* 128 * sysctl API version 129 */ 130 #define SYSCTL_VERS_MASK 0xff000000 131 #define SYSCTL_VERS_0 0x00000000 132 #define SYSCTL_VERS_1 0x01000000 133 #define SYSCTL_VERSION SYSCTL_VERS_1 134 #define SYSCTL_VERS(f) ((f) & SYSCTL_VERS_MASK) 135 136 /* 137 * Flags that can be set by a create request from user-space 138 */ 139 #define SYSCTL_USERFLAGS (CTLFLAG_READWRITE|\ 140 CTLFLAG_ANYWRITE|\ 141 CTLFLAG_PRIVATE|\ 142 CTLFLAG_OWNDATA|\ 143 CTLFLAG_IMMEDIATE|\ 144 CTLFLAG_HEX|\ 145 CTLFLAG_HIDDEN) 146 147 /* 148 * Accessor macros 149 */ 150 #define SYSCTL_TYPEMASK 0x0000000f 151 #define SYSCTL_TYPE(x) ((x) & SYSCTL_TYPEMASK) 152 #define SYSCTL_FLAGMASK 0x00fffff0 153 #define SYSCTL_FLAGS(x) ((x) & SYSCTL_FLAGMASK) 154 155 /* 156 * Meta-identifiers 157 */ 158 #define CTL_EOL (-1) /* end of createv/destroyv list */ 159 #define CTL_QUERY (-2) /* enumerates children of a node */ 160 #define CTL_CREATE (-3) /* node create request */ 161 #define CTL_CREATESYM (-4) /* node create request with symbol */ 162 #define CTL_DESTROY (-5) /* node destroy request */ 163 #define CTL_MMAP (-6) /* mmap request */ 164 #define CTL_DESCRIBE (-7) /* get node descriptions */ 165 166 /* 167 * Top-level identifiers 168 */ 169 #define CTL_UNSPEC 0 /* unused */ 170 #define CTL_KERN 1 /* "high kernel": proc, limits */ 171 #define CTL_VM 2 /* virtual memory */ 172 #define CTL_VFS 3 /* file system, mount type is next */ 173 #define CTL_NET 4 /* network, see socket.h */ 174 #define CTL_DEBUG 5 /* debugging parameters */ 175 #define CTL_HW 6 /* generic CPU/io */ 176 #define CTL_MACHDEP 7 /* machine dependent */ 177 #define CTL_USER 8 /* user-level */ 178 #define CTL_DDB 9 /* in-kernel debugger */ 179 #define CTL_PROC 10 /* per-proc attr */ 180 #define CTL_VENDOR 11 /* vendor-specific data */ 181 #define CTL_EMUL 12 /* emulation-specific data */ 182 #define CTL_SECURITY 13 /* security */ 183 #define CTL_MAXID 14 /* number of valid top-level ids */ 184 185 /* 186 * The "vendor" toplevel name is to be used by vendors who wish to 187 * have their own private MIB tree. If you do that, please use 188 * vendor.<yourname>.* 189 */ 190 191 /* 192 * CTL_KERN identifiers 193 */ 194 #define KERN_OSTYPE 1 /* string: system version */ 195 #define KERN_OSRELEASE 2 /* string: system release */ 196 #define KERN_OSREV 3 /* int: system revision */ 197 #define KERN_VERSION 4 /* string: compile time info */ 198 #define KERN_MAXVNODES 5 /* int: max vnodes */ 199 #define KERN_MAXPROC 6 /* int: max processes */ 200 #define KERN_MAXFILES 7 /* int: max open files */ 201 #define KERN_ARGMAX 8 /* int: max arguments to exec */ 202 #define KERN_SECURELVL 9 /* int: system security level */ 203 #define KERN_HOSTNAME 10 /* string: hostname */ 204 #define KERN_HOSTID 11 /* int: host identifier */ 205 #define KERN_CLOCKRATE 12 /* struct: struct clockinfo */ 206 #define KERN_VNODE 13 /* struct: vnode structures */ 207 #define KERN_PROC 14 /* struct: process entries */ 208 #define KERN_FILE 15 /* struct: file entries */ 209 #define KERN_PROF 16 /* node: kernel profiling info */ 210 #define KERN_POSIX1 17 /* int: POSIX.1 version */ 211 #define KERN_NGROUPS 18 /* int: # of supplemental group ids */ 212 #define KERN_JOB_CONTROL 19 /* int: is job control available */ 213 #define KERN_SAVED_IDS 20 /* int: saved set-user/group-ID */ 214 #define KERN_OBOOTTIME 21 /* struct: time kernel was booted */ 215 #define KERN_DOMAINNAME 22 /* string: (YP) domainname */ 216 #define KERN_MAXPARTITIONS 23 /* int: number of partitions/disk */ 217 #define KERN_RAWPARTITION 24 /* int: raw partition number */ 218 #define KERN_NTPTIME 25 /* struct: extended-precision time */ 219 #define KERN_TIMEX 26 /* struct: ntp timekeeping state */ 220 #define KERN_AUTONICETIME 27 /* int: proc time before autonice */ 221 #define KERN_AUTONICEVAL 28 /* int: auto nice value */ 222 #define KERN_RTC_OFFSET 29 /* int: offset of rtc from gmt */ 223 #define KERN_ROOT_DEVICE 30 /* string: root device */ 224 #define KERN_MSGBUFSIZE 31 /* int: max # of chars in msg buffer */ 225 #define KERN_FSYNC 32 /* int: file synchronization support */ 226 #define KERN_OLDSYSVMSG 33 /* old: SysV message queue support */ 227 #define KERN_OLDSYSVSEM 34 /* old: SysV semaphore support */ 228 #define KERN_OLDSYSVSHM 35 /* old: SysV shared memory support */ 229 #define KERN_OLDSHORTCORENAME 36 /* old, unimplemented */ 230 #define KERN_SYNCHRONIZED_IO 37 /* int: POSIX synchronized I/O */ 231 #define KERN_IOV_MAX 38 /* int: max iovec's for readv(2) etc. */ 232 #define KERN_MBUF 39 /* node: mbuf parameters */ 233 #define KERN_MAPPED_FILES 40 /* int: POSIX memory mapped files */ 234 #define KERN_MEMLOCK 41 /* int: POSIX memory locking */ 235 #define KERN_MEMLOCK_RANGE 42 /* int: POSIX memory range locking */ 236 #define KERN_MEMORY_PROTECTION 43 /* int: POSIX memory protections */ 237 #define KERN_LOGIN_NAME_MAX 44 /* int: max length login name + NUL */ 238 #define KERN_DEFCORENAME 45 /* old: sort core name format */ 239 #define KERN_LOGSIGEXIT 46 /* int: log signaled processes */ 240 #define KERN_PROC2 47 /* struct: process entries */ 241 #define KERN_PROC_ARGS 48 /* struct: process argv/env */ 242 #define KERN_FSCALE 49 /* int: fixpt FSCALE */ 243 #define KERN_CCPU 50 /* old: fixpt ccpu */ 244 #define KERN_CP_TIME 51 /* struct: CPU time counters */ 245 #define KERN_OLDSYSVIPC_INFO 52 /* old: number of valid kern ids */ 246 #define KERN_MSGBUF 53 /* kernel message buffer */ 247 #define KERN_CONSDEV 54 /* dev_t: console terminal device */ 248 #define KERN_MAXPTYS 55 /* int: maximum number of ptys */ 249 #define KERN_PIPE 56 /* node: pipe limits */ 250 #define KERN_MAXPHYS 57 /* int: kernel value of MAXPHYS */ 251 #define KERN_SBMAX 58 /* int: max socket buffer size */ 252 #define KERN_TKSTAT 59 /* tty in/out counters */ 253 #define KERN_MONOTONIC_CLOCK 60 /* int: POSIX monotonic clock */ 254 #define KERN_URND 61 /* int: random integer from urandom */ 255 #define KERN_LABELSECTOR 62 /* int: disklabel sector */ 256 #define KERN_LABELOFFSET 63 /* int: offset of label within sector */ 257 #define KERN_LWP 64 /* struct: lwp entries */ 258 #define KERN_FORKFSLEEP 65 /* int: sleep length on failed fork */ 259 #define KERN_POSIX_THREADS 66 /* int: POSIX Threads option */ 260 #define KERN_POSIX_SEMAPHORES 67 /* int: POSIX Semaphores option */ 261 #define KERN_POSIX_BARRIERS 68 /* int: POSIX Barriers option */ 262 #define KERN_POSIX_TIMERS 69 /* int: POSIX Timers option */ 263 #define KERN_POSIX_SPIN_LOCKS 70 /* int: POSIX Spin Locks option */ 264 #define KERN_POSIX_READER_WRITER_LOCKS 71 /* int: POSIX R/W Locks option */ 265 #define KERN_DUMP_ON_PANIC 72 /* int: dump on panic */ 266 #define KERN_SOMAXKVA 73 /* int: max socket kernel virtual mem */ 267 #define KERN_ROOT_PARTITION 74 /* int: root partition */ 268 #define KERN_DRIVERS 75 /* struct: driver names and majors #s */ 269 #define KERN_BUF 76 /* struct: buffers */ 270 #define KERN_FILE2 77 /* struct: file entries */ 271 #define KERN_VERIEXEC 78 /* node: verified exec */ 272 #define KERN_CP_ID 79 /* struct: cpu id numbers */ 273 #define KERN_HARDCLOCK_TICKS 80 /* int: number of hardclock ticks */ 274 #define KERN_ARND 81 /* void *buf, size_t siz random */ 275 #define KERN_SYSVIPC 82 /* node: SysV IPC parameters */ 276 #define KERN_BOOTTIME 83 /* struct: time kernel was booted */ 277 #define KERN_EVCNT 84 /* struct: evcnts */ 278 #define KERN_MAXID 85 /* number of valid kern ids */ 279 280 281 #define CTL_KERN_NAMES { \ 282 { 0, 0 }, \ 283 { "ostype", CTLTYPE_STRING }, \ 284 { "osrelease", CTLTYPE_STRING }, \ 285 { "osrevision", CTLTYPE_INT }, \ 286 { "version", CTLTYPE_STRING }, \ 287 { "maxvnodes", CTLTYPE_INT }, \ 288 { "maxproc", CTLTYPE_INT }, \ 289 { "maxfiles", CTLTYPE_INT }, \ 290 { "argmax", CTLTYPE_INT }, \ 291 { "securelevel", CTLTYPE_INT }, \ 292 { "hostname", CTLTYPE_STRING }, \ 293 { "hostid", CTLTYPE_INT }, \ 294 { "clockrate", CTLTYPE_STRUCT }, \ 295 { "vnode", CTLTYPE_STRUCT }, \ 296 { "proc", CTLTYPE_STRUCT }, \ 297 { "file", CTLTYPE_STRUCT }, \ 298 { "profiling", CTLTYPE_NODE }, \ 299 { "posix1version", CTLTYPE_INT }, \ 300 { "ngroups", CTLTYPE_INT }, \ 301 { "job_control", CTLTYPE_INT }, \ 302 { "saved_ids", CTLTYPE_INT }, \ 303 { 0, 0 }, \ 304 { "domainname", CTLTYPE_STRING }, \ 305 { "maxpartitions", CTLTYPE_INT }, \ 306 { "rawpartition", CTLTYPE_INT }, \ 307 { "ntptime", CTLTYPE_STRUCT }, \ 308 { "timex", CTLTYPE_STRUCT }, \ 309 { "autonicetime", CTLTYPE_INT }, \ 310 { "autoniceval", CTLTYPE_INT }, \ 311 { "rtc_offset", CTLTYPE_INT }, \ 312 { "root_device", CTLTYPE_STRING }, \ 313 { "msgbufsize", CTLTYPE_INT }, \ 314 { "fsync", CTLTYPE_INT }, \ 315 { 0, 0 }, \ 316 { 0, 0 }, \ 317 { 0, 0 }, \ 318 { 0, 0 }, \ 319 { "synchronized_io", CTLTYPE_INT }, \ 320 { "iov_max", CTLTYPE_INT }, \ 321 { "mbuf", CTLTYPE_NODE }, \ 322 { "mapped_files", CTLTYPE_INT }, \ 323 { "memlock", CTLTYPE_INT }, \ 324 { "memlock_range", CTLTYPE_INT }, \ 325 { "memory_protection", CTLTYPE_INT }, \ 326 { "login_name_max", CTLTYPE_INT }, \ 327 { "defcorename", CTLTYPE_STRING }, \ 328 { "logsigexit", CTLTYPE_INT }, \ 329 { "proc2", CTLTYPE_STRUCT }, \ 330 { "proc_args", CTLTYPE_STRING }, \ 331 { "fscale", CTLTYPE_INT }, \ 332 { 0, 0 }, \ 333 { "cp_time", CTLTYPE_STRUCT }, \ 334 { 0, 0 }, \ 335 { "msgbuf", CTLTYPE_STRUCT }, \ 336 { "consdev", CTLTYPE_STRUCT }, \ 337 { "maxptys", CTLTYPE_INT }, \ 338 { "pipe", CTLTYPE_NODE }, \ 339 { "maxphys", CTLTYPE_INT }, \ 340 { "sbmax", CTLTYPE_INT }, \ 341 { "tkstat", CTLTYPE_NODE }, \ 342 { "monotonic_clock", CTLTYPE_INT }, \ 343 { "urandom", CTLTYPE_INT }, \ 344 { "labelsector", CTLTYPE_INT }, \ 345 { "labeloffset", CTLTYPE_INT }, \ 346 { "lwp", CTLTYPE_STRUCT }, \ 347 { "forkfsleep", CTLTYPE_INT }, \ 348 { "posix_threads", CTLTYPE_INT }, \ 349 { "posix_semaphores", CTLTYPE_INT }, \ 350 { "posix_barriers", CTLTYPE_INT }, \ 351 { "posix_timers", CTLTYPE_INT }, \ 352 { "posix_spin_locks", CTLTYPE_INT }, \ 353 { "posix_reader_writer_locks", CTLTYPE_INT }, \ 354 { "dump_on_panic", CTLTYPE_INT}, \ 355 { "somaxkva", CTLTYPE_INT}, \ 356 { "root_partition", CTLTYPE_INT}, \ 357 { "drivers", CTLTYPE_STRUCT }, \ 358 { "buf", CTLTYPE_NODE }, \ 359 { "file2", CTLTYPE_STRUCT }, \ 360 { "veriexec", CTLTYPE_NODE }, \ 361 { "cp_id", CTLTYPE_STRUCT }, \ 362 { "hardclock_ticks", CTLTYPE_INT }, \ 363 { "arandom", CTLTYPE_STRUCT }, \ 364 { "sysvipc", CTLTYPE_STRUCT }, \ 365 { "boottime", CTLTYPE_STRUCT }, \ 366 { "evcnt", CTLTYPE_STRUCT }, \ 367 } 368 369 /* 370 * KERN_CLOCKRATE structure 371 */ 372 struct clockinfo { 373 int hz; /* clock frequency */ 374 int tick; /* micro-seconds per hz tick */ 375 int tickadj; /* clock skew rate for adjtime() */ 376 int stathz; /* statistics clock frequency */ 377 int profhz; /* profiling clock frequency */ 378 }; 379 380 /* 381 * KERN_PROC subtypes 382 */ 383 #define KERN_PROC_ALL 0 /* everything */ 384 #define KERN_PROC_PID 1 /* by process id */ 385 #define KERN_PROC_PGRP 2 /* by process group id */ 386 #define KERN_PROC_SESSION 3 /* by session of pid */ 387 #define KERN_PROC_TTY 4 /* by controlling tty */ 388 #define KERN_PROC_UID 5 /* by effective uid */ 389 #define KERN_PROC_RUID 6 /* by real uid */ 390 #define KERN_PROC_GID 7 /* by effective gid */ 391 #define KERN_PROC_RGID 8 /* by real gid */ 392 393 /* 394 * KERN_PROC_TTY sub-subtypes 395 */ 396 #define KERN_PROC_TTY_NODEV NODEV /* no controlling tty */ 397 #define KERN_PROC_TTY_REVOKE ((dev_t)-2) /* revoked tty */ 398 399 struct ki_pcred { 400 void *p_pad; 401 uid_t p_ruid; /* Real user id */ 402 uid_t p_svuid; /* Saved effective user id */ 403 gid_t p_rgid; /* Real group id */ 404 gid_t p_svgid; /* Saved effective group id */ 405 int p_refcnt; /* Number of references */ 406 }; 407 408 struct ki_ucred { 409 uint32_t cr_ref; /* reference count */ 410 uid_t cr_uid; /* effective user id */ 411 gid_t cr_gid; /* effective group id */ 412 uint32_t cr_ngroups; /* number of groups */ 413 gid_t cr_groups[NGROUPS]; /* groups */ 414 }; 415 416 #if defined(_KERNEL) || defined(_KMEMUSER) 417 418 struct eproc { 419 struct proc *e_paddr; /* address of proc */ 420 struct session *e_sess; /* session pointer */ 421 struct ki_pcred e_pcred; /* process credentials */ 422 struct ki_ucred e_ucred; /* current credentials */ 423 struct vmspace e_vm; /* address space */ 424 pid_t e_ppid; /* parent process id */ 425 pid_t e_pgid; /* process group id */ 426 short e_jobc; /* job control counter */ 427 uint32_t e_tdev; /* XXX: controlling tty dev */ 428 pid_t e_tpgid; /* tty process group id */ 429 struct session *e_tsess; /* tty session pointer */ 430 #define WMESGLEN 8 431 char e_wmesg[WMESGLEN]; /* wchan message */ 432 segsz_t e_xsize; /* text size */ 433 short e_xrssize; /* text rss */ 434 short e_xccount; /* text references */ 435 short e_xswrss; 436 long e_flag; /* see p_eflag below */ 437 char e_login[MAXLOGNAME]; /* setlogin() name */ 438 pid_t e_sid; /* session id */ 439 long e_spare[3]; 440 }; 441 442 /* 443 * KERN_PROC subtype ops return arrays of augmented proc structures: 444 */ 445 struct kinfo_proc { 446 struct proc kp_proc; /* proc structure */ 447 struct eproc kp_eproc; /* eproc structure */ 448 }; 449 #endif /* defined(_KERNEL) || defined(_KMEMUSER) */ 450 451 /* 452 * Convert pointer to 64 bit unsigned integer for struct 453 * kinfo_proc2, etc. 454 */ 455 #define PTRTOUINT64(p) ((uint64_t)(uintptr_t)(p)) 456 #define UINT64TOPTR(u) ((void *)(uintptr_t)(u)) 457 458 /* 459 * KERN_PROC2 subtype ops return arrays of relatively fixed size 460 * structures of process info. Use 8 byte alignment, and new 461 * elements should only be added to the end of this structure so 462 * binary compatibility can be preserved. 463 */ 464 #define KI_NGROUPS 16 465 #define KI_MAXCOMLEN 24 /* extra for 8 byte alignment */ 466 #define KI_WMESGLEN 8 467 #define KI_MAXLOGNAME 24 /* extra for 8 byte alignment */ 468 #define KI_MAXEMULLEN 16 469 #define KI_LNAMELEN 20 /* extra 4 for alignment */ 470 471 #define KI_NOCPU (~(uint64_t)0) 472 473 typedef struct { 474 uint32_t __bits[4]; 475 } ki_sigset_t; 476 477 struct kinfo_proc2 { 478 uint64_t p_forw; /* PTR: linked run/sleep queue. */ 479 uint64_t p_back; 480 uint64_t p_paddr; /* PTR: address of proc */ 481 482 uint64_t p_addr; /* PTR: Kernel virtual addr of u-area */ 483 uint64_t p_fd; /* PTR: Ptr to open files structure. */ 484 uint64_t p_cwdi; /* PTR: cdir/rdir/cmask info */ 485 uint64_t p_stats; /* PTR: Accounting/statistics */ 486 uint64_t p_limit; /* PTR: Process limits. */ 487 uint64_t p_vmspace; /* PTR: Address space. */ 488 uint64_t p_sigacts; /* PTR: Signal actions, state */ 489 uint64_t p_sess; /* PTR: session pointer */ 490 uint64_t p_tsess; /* PTR: tty session pointer */ 491 uint64_t p_ru; /* PTR: Exit information. XXX */ 492 493 int32_t p_eflag; /* LONG: extra kinfo_proc2 flags */ 494 #define EPROC_CTTY 0x01 /* controlling tty vnode active */ 495 #define EPROC_SLEADER 0x02 /* session leader */ 496 int32_t p_exitsig; /* INT: signal to sent to parent on exit */ 497 int32_t p_flag; /* INT: P_* flags. */ 498 499 int32_t p_pid; /* PID_T: Process identifier. */ 500 int32_t p_ppid; /* PID_T: Parent process id */ 501 int32_t p_sid; /* PID_T: session id */ 502 int32_t p__pgid; /* PID_T: process group id */ 503 /* XXX: <sys/proc.h> hijacks p_pgid */ 504 int32_t p_tpgid; /* PID_T: tty process group id */ 505 506 uint32_t p_uid; /* UID_T: effective user id */ 507 uint32_t p_ruid; /* UID_T: real user id */ 508 uint32_t p_gid; /* GID_T: effective group id */ 509 uint32_t p_rgid; /* GID_T: real group id */ 510 511 uint32_t p_groups[KI_NGROUPS]; /* GID_T: groups */ 512 int16_t p_ngroups; /* SHORT: number of groups */ 513 514 int16_t p_jobc; /* SHORT: job control counter */ 515 uint32_t p_tdev; /* XXX: DEV_T: controlling tty dev */ 516 517 uint32_t p_estcpu; /* U_INT: Time averaged value of p_cpticks. */ 518 uint32_t p_rtime_sec; /* STRUCT TIMEVAL: Real time. */ 519 uint32_t p_rtime_usec; /* STRUCT TIMEVAL: Real time. */ 520 int32_t p_cpticks; /* INT: Ticks of CPU time. */ 521 uint32_t p_pctcpu; /* FIXPT_T: %cpu for this process during p_swtime */ 522 uint32_t p_swtime; /* U_INT: Time swapped in or out. */ 523 uint32_t p_slptime; /* U_INT: Time since last blocked. */ 524 int32_t p_schedflags; /* INT: PSCHED_* flags */ 525 526 uint64_t p_uticks; /* U_QUAD_T: Statclock hits in user mode. */ 527 uint64_t p_sticks; /* U_QUAD_T: Statclock hits in system mode. */ 528 uint64_t p_iticks; /* U_QUAD_T: Statclock hits processing intr. */ 529 530 uint64_t p_tracep; /* PTR: Trace to vnode or file */ 531 int32_t p_traceflag; /* INT: Kernel trace points. */ 532 533 int32_t p_holdcnt; /* INT: If non-zero, don't swap. */ 534 535 ki_sigset_t p_siglist; /* SIGSET_T: Signals arrived but not delivered. */ 536 ki_sigset_t p_sigmask; /* SIGSET_T: Current signal mask. */ 537 ki_sigset_t p_sigignore; /* SIGSET_T: Signals being ignored. */ 538 ki_sigset_t p_sigcatch; /* SIGSET_T: Signals being caught by user. */ 539 540 int8_t p_stat; /* CHAR: S* process status (from LWP). */ 541 uint8_t p_priority; /* U_CHAR: Process priority. */ 542 uint8_t p_usrpri; /* U_CHAR: User-priority based on p_cpu and p_nice. */ 543 uint8_t p_nice; /* U_CHAR: Process "nice" value. */ 544 545 uint16_t p_xstat; /* U_SHORT: Exit status for wait; also stop signal. */ 546 uint16_t p_acflag; /* U_SHORT: Accounting flags. */ 547 548 char p_comm[KI_MAXCOMLEN]; 549 550 char p_wmesg[KI_WMESGLEN]; /* wchan message */ 551 uint64_t p_wchan; /* PTR: sleep address. */ 552 553 char p_login[KI_MAXLOGNAME]; /* setlogin() name */ 554 555 int32_t p_vm_rssize; /* SEGSZ_T: current resident set size in pages */ 556 int32_t p_vm_tsize; /* SEGSZ_T: text size (pages) */ 557 int32_t p_vm_dsize; /* SEGSZ_T: data size (pages) */ 558 int32_t p_vm_ssize; /* SEGSZ_T: stack size (pages) */ 559 560 int64_t p_uvalid; /* CHAR: following p_u* parameters are valid */ 561 /* XXX 64 bits for alignment */ 562 uint32_t p_ustart_sec; /* STRUCT TIMEVAL: starting time. */ 563 uint32_t p_ustart_usec; /* STRUCT TIMEVAL: starting time. */ 564 565 uint32_t p_uutime_sec; /* STRUCT TIMEVAL: user time. */ 566 uint32_t p_uutime_usec; /* STRUCT TIMEVAL: user time. */ 567 uint32_t p_ustime_sec; /* STRUCT TIMEVAL: system time. */ 568 uint32_t p_ustime_usec; /* STRUCT TIMEVAL: system time. */ 569 570 uint64_t p_uru_maxrss; /* LONG: max resident set size. */ 571 uint64_t p_uru_ixrss; /* LONG: integral shared memory size. */ 572 uint64_t p_uru_idrss; /* LONG: integral unshared data ". */ 573 uint64_t p_uru_isrss; /* LONG: integral unshared stack ". */ 574 uint64_t p_uru_minflt; /* LONG: page reclaims. */ 575 uint64_t p_uru_majflt; /* LONG: page faults. */ 576 uint64_t p_uru_nswap; /* LONG: swaps. */ 577 uint64_t p_uru_inblock; /* LONG: block input operations. */ 578 uint64_t p_uru_oublock; /* LONG: block output operations. */ 579 uint64_t p_uru_msgsnd; /* LONG: messages sent. */ 580 uint64_t p_uru_msgrcv; /* LONG: messages received. */ 581 uint64_t p_uru_nsignals; /* LONG: signals received. */ 582 uint64_t p_uru_nvcsw; /* LONG: voluntary context switches. */ 583 uint64_t p_uru_nivcsw; /* LONG: involuntary ". */ 584 585 uint32_t p_uctime_sec; /* STRUCT TIMEVAL: child u+s time. */ 586 uint32_t p_uctime_usec; /* STRUCT TIMEVAL: child u+s time. */ 587 uint64_t p_cpuid; /* LONG: CPU id */ 588 uint64_t p_realflag; /* INT: P_* flags (not including LWPs). */ 589 uint64_t p_nlwps; /* LONG: Number of LWPs */ 590 uint64_t p_nrlwps; /* LONG: Number of running LWPs */ 591 uint64_t p_realstat; /* LONG: non-LWP process status */ 592 uint32_t p_svuid; /* UID_T: saved user id */ 593 uint32_t p_svgid; /* GID_T: saved group id */ 594 char p_ename[KI_MAXEMULLEN]; /* emulation name */ 595 int64_t p_vm_vsize; /* SEGSZ_T: total map size (pages) */ 596 int64_t p_vm_msize; /* SEGSZ_T: stack-adjusted map size (pages) */ 597 }; 598 599 /* 600 * Compat flags for kinfo_proc, kinfo_proc2. Not guaranteed to be stable. 601 * Some of them used to be shared with LWP flags. 602 * XXXAD Trim to the minimum necessary... 603 */ 604 605 #define P_ADVLOCK 0x00000001 606 #define P_CONTROLT 0x00000002 607 #define L_INMEM 0x00000004 608 #define P_INMEM /* 0x00000004 */ L_INMEM 609 #define P_NOCLDSTOP 0x00000008 610 #define P_PPWAIT 0x00000010 611 #define P_PROFIL 0x00000020 612 #define L_SELECT 0x00000040 613 #define P_SELECT /* 0x00000040 */ L_SELECT 614 #define L_SINTR 0x00000080 615 #define P_SINTR /* 0x00000080 */ L_SINTR 616 #define P_SUGID 0x00000100 617 #define L_SYSTEM 0x00000200 618 #define P_SYSTEM /* 0x00000200 */ L_SYSTEM 619 #define L_SA 0x00000400 620 #define P_SA /* 0x00000400 */ L_SA 621 #define P_TRACED 0x00000800 622 #define P_WAITED 0x00001000 623 #define P_WEXIT 0x00002000 624 #define P_EXEC 0x00004000 625 #define P_OWEUPC 0x00008000 626 #define P_FSTRACE 0x00010000 627 #define P_NOCLDWAIT 0x00020000 628 #define P_32 0x00040000 629 #define P_CLDSIGIGN 0x00080000 630 #define P_SYSTRACE 0x00200000 631 #define P_CHTRACED 0x00400000 632 #define P_STOPFORK 0x00800000 633 #define P_STOPEXEC 0x01000000 634 #define P_STOPEXIT 0x02000000 635 #define P_SYSCALL 0x04000000 636 #define P_PAXMPROTECT 0x08000000 637 #define P_PAXNOMPROTECT 0x10000000 638 639 /* 640 * LWP compat flags. 641 */ 642 #define L_DETACHED 0x00800000 643 644 /* 645 * KERN_LWP structure. See notes on KERN_PROC2 about adding elements. 646 */ 647 struct kinfo_lwp { 648 uint64_t l_forw; /* PTR: linked run/sleep queue. */ 649 uint64_t l_back; 650 uint64_t l_laddr; /* PTR: Address of LWP */ 651 uint64_t l_addr; /* PTR: Kernel virtual addr of u-area */ 652 int32_t l_lid; /* LWPID_T: LWP identifier */ 653 int32_t l_flag; /* INT: L_* flags. */ 654 uint32_t l_swtime; /* U_INT: Time swapped in or out. */ 655 uint32_t l_slptime; /* U_INT: Time since last blocked. */ 656 int32_t l_schedflags; /* INT: PSCHED_* flags */ 657 int32_t l_holdcnt; /* INT: If non-zero, don't swap. */ 658 uint8_t l_priority; /* U_CHAR: Process priority. */ 659 uint8_t l_usrpri; /* U_CHAR: User-priority based on l_cpu and p_nice. */ 660 int8_t l_stat; /* CHAR: S* process status. */ 661 int8_t l_pad1; /* fill out to 4-byte boundary */ 662 int32_t l_pad2; /* .. and then to an 8-byte boundary */ 663 char l_wmesg[KI_WMESGLEN]; /* wchan message */ 664 uint64_t l_wchan; /* PTR: sleep address. */ 665 uint64_t l_cpuid; /* LONG: CPU id */ 666 uint32_t l_rtime_sec; /* STRUCT TIMEVAL: Real time. */ 667 uint32_t l_rtime_usec; /* STRUCT TIMEVAL: Real time. */ 668 uint32_t l_cpticks; /* INT: ticks during l_swtime */ 669 uint32_t l_pctcpu; /* FIXPT_T: cpu usage for ps */ 670 uint32_t l_pid; /* PID_T: process identifier */ 671 char l_name[KI_LNAMELEN]; /* CHAR[]: name, may be empty */ 672 }; 673 674 /* 675 * KERN_PROC_ARGS subtypes 676 */ 677 #define KERN_PROC_ARGV 1 /* argv */ 678 #define KERN_PROC_NARGV 2 /* number of strings in above */ 679 #define KERN_PROC_ENV 3 /* environ */ 680 #define KERN_PROC_NENV 4 /* number of strings in above */ 681 #define KERN_PROC_PATHNAME 5 /* path to executable */ 682 683 /* 684 * KERN_SYSVIPC subtypes 685 */ 686 #define KERN_SYSVIPC_INFO 1 /* struct: number of valid kern ids */ 687 #define KERN_SYSVIPC_MSG 2 /* int: SysV message queue support */ 688 #define KERN_SYSVIPC_SEM 3 /* int: SysV semaphore support */ 689 #define KERN_SYSVIPC_SHM 4 /* int: SysV shared memory support */ 690 #define KERN_SYSVIPC_SHMMAX 5 /* int: max shared memory segment size (bytes) */ 691 #define KERN_SYSVIPC_SHMMNI 6 /* int: max number of shared memory identifiers */ 692 #define KERN_SYSVIPC_SHMSEG 7 /* int: max shared memory segments per process */ 693 #define KERN_SYSVIPC_SHMMAXPGS 8 /* int: max amount of shared memory (pages) */ 694 #define KERN_SYSVIPC_SHMUSEPHYS 9 /* int: physical memory usage */ 695 696 /* 697 * KERN_SYSVIPC_INFO subtypes 698 */ 699 /* KERN_SYSVIPC_OMSG_INFO 1 */ 700 /* KERN_SYSVIPC_OSEM_INFO 2 */ 701 /* KERN_SYSVIPC_OSHM_INFO 3 */ 702 #define KERN_SYSVIPC_MSG_INFO 4 /* msginfo and msgid_ds */ 703 #define KERN_SYSVIPC_SEM_INFO 5 /* seminfo and semid_ds */ 704 #define KERN_SYSVIPC_SHM_INFO 6 /* shminfo and shmid_ds */ 705 706 /* 707 * tty counter sysctl variables 708 */ 709 #define KERN_TKSTAT_NIN 1 /* total input character */ 710 #define KERN_TKSTAT_NOUT 2 /* total output character */ 711 #define KERN_TKSTAT_CANCC 3 /* canonical input character */ 712 #define KERN_TKSTAT_RAWCC 4 /* raw input character */ 713 #define KERN_TKSTAT_MAXID 5 /* number of valid TKSTAT ids */ 714 715 #define KERN_TKSTAT_NAMES { \ 716 { 0, 0 }, \ 717 { "nin", CTLTYPE_QUAD }, \ 718 { "nout", CTLTYPE_QUAD }, \ 719 { "cancc", CTLTYPE_QUAD }, \ 720 { "rawcc", CTLTYPE_QUAD }, \ 721 } 722 723 /* 724 * kern.drivers returns an array of these. 725 */ 726 727 struct kinfo_drivers { 728 devmajor_t d_cmajor; 729 devmajor_t d_bmajor; 730 char d_name[24]; 731 }; 732 733 /* 734 * KERN_BUF subtypes, like KERN_PROC2, where the four following mib 735 * entries specify "which type of buf", "which particular buf", 736 * "sizeof buf", and "how many". Currently, only "all buf" is 737 * defined. 738 */ 739 #define KERN_BUF_ALL 0 /* all buffers */ 740 741 /* 742 * kern.buf returns an array of these structures, which are designed 743 * both to be immune to 32/64 bit emulation issues and to provide 744 * backwards compatibility. Note that the order here differs slightly 745 * from the real struct buf in order to achieve proper 64 bit 746 * alignment. 747 */ 748 struct buf_sysctl { 749 uint32_t b_flags; /* LONG: B_* flags */ 750 int32_t b_error; /* INT: Errno value */ 751 int32_t b_prio; /* INT: Hint for buffer queue discipline */ 752 uint32_t b_dev; /* DEV_T: Device associated with buffer */ 753 uint64_t b_bufsize; /* LONG: Allocated buffer size */ 754 uint64_t b_bcount; /* LONG: Valid bytes in buffer */ 755 uint64_t b_resid; /* LONG: Remaining I/O */ 756 uint64_t b_addr; /* CADDR_T: Memory, superblocks, indirect... */ 757 uint64_t b_blkno; /* DADDR_T: Underlying physical block number */ 758 uint64_t b_rawblkno; /* DADDR_T: Raw underlying physical block */ 759 uint64_t b_iodone; /* PTR: Function called upon completion */ 760 uint64_t b_proc; /* PTR: Associated proc if B_PHYS set */ 761 uint64_t b_vp; /* PTR: File vnode */ 762 uint64_t b_saveaddr; /* PTR: Original b_addr for physio */ 763 uint64_t b_lblkno; /* DADDR_T: Logical block number */ 764 }; 765 766 /* 767 * kern.file2 returns an array of these structures, which are designed 768 * both to be immune to be immune to 32/64 bit emulation issues and to 769 * provide backwards compatibility. The order differs slightly from 770 * that of the real struct file, and some fields are taken from other 771 * structures (struct vnode, struct proc) in order to make the file 772 * information more useful. 773 */ 774 struct kinfo_file { 775 uint64_t ki_fileaddr; /* PTR: address of struct file */ 776 uint32_t ki_flag; /* INT: flags (see fcntl.h) */ 777 uint32_t ki_iflags; /* INT: internal flags */ 778 uint32_t ki_ftype; /* INT: descriptor type */ 779 uint32_t ki_count; /* UINT: reference count */ 780 uint32_t ki_msgcount; /* UINT: references from msg queue */ 781 uint32_t ki_usecount; /* INT: number active users */ 782 uint64_t ki_fucred; /* PTR: creds for descriptor */ 783 uint32_t ki_fuid; /* UID_T: descriptor credentials */ 784 uint32_t ki_fgid; /* GID_T: descriptor credentials */ 785 uint64_t ki_fops; /* PTR: address of fileops */ 786 uint64_t ki_foffset; /* OFF_T: offset */ 787 uint64_t ki_fdata; /* PTR: descriptor data */ 788 789 /* vnode information to glue this file to something */ 790 uint64_t ki_vun; /* PTR: socket, specinfo, etc */ 791 uint64_t ki_vsize; /* OFF_T: size of file */ 792 uint32_t ki_vtype; /* ENUM: vnode type */ 793 uint32_t ki_vtag; /* ENUM: type of underlying data */ 794 uint64_t ki_vdata; /* PTR: private data for fs */ 795 796 /* process information when retrieved via KERN_FILE_BYPID */ 797 uint32_t ki_pid; /* PID_T: process id */ 798 int32_t ki_fd; /* INT: descriptor number */ 799 uint32_t ki_ofileflags; /* CHAR: open file flags */ 800 uint32_t _ki_padto64bits; 801 }; 802 803 #define KERN_FILE_BYFILE 1 804 #define KERN_FILE_BYPID 2 805 #define KERN_FILESLOP 10 806 807 /* 808 * kern.evcnt returns an array of these structures, which are designed both to 809 * be immune to 32/64 bit emulation issues. Note that the struct here differs 810 * from the real struct evcnt but contains the same information in order to 811 * accommodate sysctl. 812 */ 813 struct evcnt_sysctl { 814 uint64_t ev_count; /* current count */ 815 uint64_t ev_addr; /* kernel address of evcnt */ 816 uint64_t ev_parent; /* kernel address of parent */ 817 uint8_t ev_type; /* EVCNT_TRAP_* */ 818 uint8_t ev_grouplen; /* length of group with NUL */ 819 uint8_t ev_namelen; /* length of name with NUL */ 820 uint8_t ev_len; /* multiply by 8 */ 821 /* 822 * Now the group and name strings follow (both include the trailing 823 * NUL). ev_name start at &ev_strings[ev_grouplen+1] 824 */ 825 char ev_strings[0]; 826 }; 827 828 #define KERN_EVCNT_COUNT_ANY 0 829 #define KERN_EVCNT_COUNT_NONZERO 1 830 831 /* 832 * CTL_VM identifiers in <uvm/uvm_param.h> 833 */ 834 835 /* 836 * The vm.proc.map sysctl allows a process to dump the VM layout of 837 * another process as a series of entries. 838 */ 839 #define KVME_TYPE_NONE 0 840 #define KVME_TYPE_OBJECT 1 841 #define KVME_TYPE_VNODE 2 842 #define KVME_TYPE_KERN 3 843 #define KVME_TYPE_DEVICE 4 844 #define KVME_TYPE_ANON 5 845 #define KVME_TYPE_SUBMAP 6 846 #define KVME_TYPE_UNKNOWN 255 847 848 #define KVME_PROT_READ 0x00000001 849 #define KVME_PROT_WRITE 0x00000002 850 #define KVME_PROT_EXEC 0x00000004 851 852 #define KVME_FLAG_COW 0x00000001 853 #define KVME_FLAG_NEEDS_COPY 0x00000002 854 #define KVME_FLAG_NOCOREDUMP 0x00000004 855 #define KVME_FLAG_PAGEABLE 0x00000008 856 #define KVME_FLAG_GROWS_UP 0x00000010 857 #define KVME_FLAG_GROWS_DOWN 0x00000020 858 859 struct kinfo_vmentry { 860 uint64_t kve_start; /* Starting address. */ 861 uint64_t kve_end; /* Finishing address. */ 862 uint64_t kve_offset; /* Mapping offset in object */ 863 864 uint32_t kve_type; /* Type of map entry. */ 865 uint32_t kve_flags; /* Flags on map entry. */ 866 867 uint32_t kve_count; /* Number of pages/entries */ 868 uint32_t kve_wired_count; /* Number of wired pages */ 869 870 uint32_t kve_advice; /* Advice */ 871 uint32_t kve_attributes; /* Map attribute */ 872 873 uint32_t kve_protection; /* Protection bitmask. */ 874 uint32_t kve_max_protection; /* Max protection bitmask */ 875 876 uint32_t kve_ref_count; /* VM obj ref count. */ 877 uint32_t kve_inheritance; /* Inheritance */ 878 879 uint64_t kve_vn_fileid; /* inode number if vnode */ 880 uint64_t kve_vn_size; /* File size. */ 881 uint64_t kve_vn_fsid; /* dev_t of vnode location */ 882 uint64_t kve_vn_rdev; /* Device id if device. */ 883 884 uint32_t kve_vn_type; /* Vnode type. */ 885 uint32_t kve_vn_mode; /* File mode. */ 886 887 char kve_path[PATH_MAX]; /* Path to VM obj, if any. */ 888 }; 889 890 /* 891 * CTL_HW identifiers 892 */ 893 #define HW_MACHINE 1 /* string: machine class */ 894 #define HW_MODEL 2 /* string: specific machine model */ 895 #define HW_NCPU 3 /* int: number of cpus */ 896 #define HW_BYTEORDER 4 /* int: machine byte order */ 897 #define HW_PHYSMEM 5 /* int: total memory (bytes) */ 898 #define HW_USERMEM 6 /* int: non-kernel memory (bytes) */ 899 #define HW_PAGESIZE 7 /* int: software page size */ 900 #define HW_DISKNAMES 8 /* string: disk drive names */ 901 #define HW_IOSTATS 9 /* struct: iostats[] */ 902 #define HW_MACHINE_ARCH 10 /* string: machine architecture */ 903 #define HW_ALIGNBYTES 11 /* int: ALIGNBYTES for the kernel */ 904 #define HW_CNMAGIC 12 /* string: console magic sequence(s) */ 905 #define HW_PHYSMEM64 13 /* quad: total memory (bytes) */ 906 #define HW_USERMEM64 14 /* quad: non-kernel memory (bytes) */ 907 #define HW_IOSTATNAMES 15 /* string: iostat names */ 908 #define HW_MAXID 15 /* number of valid hw ids */ 909 #define HW_NCPUONLINE 16 /* number CPUs online */ 910 911 #define CTL_HW_NAMES { \ 912 { 0, 0 }, \ 913 { "machine", CTLTYPE_STRING }, \ 914 { "model", CTLTYPE_STRING }, \ 915 { "ncpu", CTLTYPE_INT }, \ 916 { "byteorder", CTLTYPE_INT }, \ 917 { "physmem", CTLTYPE_INT }, \ 918 { "usermem", CTLTYPE_INT }, \ 919 { "pagesize", CTLTYPE_INT }, \ 920 { "drivenames", CTLTYPE_STRING }, \ 921 { "drivestats", CTLTYPE_STRUCT }, \ 922 { "machine_arch", CTLTYPE_STRING }, \ 923 { "alignbytes", CTLTYPE_INT }, \ 924 { "cnmagic", CTLTYPE_STRING }, \ 925 { "physmem64", CTLTYPE_QUAD }, \ 926 { "usermem64", CTLTYPE_QUAD }, \ 927 { "ncpuonline", CTLTYPE_INT }, \ 928 } 929 930 /* 931 * CTL_USER definitions 932 */ 933 #define USER_CS_PATH 1 /* string: _CS_PATH */ 934 #define USER_BC_BASE_MAX 2 /* int: BC_BASE_MAX */ 935 #define USER_BC_DIM_MAX 3 /* int: BC_DIM_MAX */ 936 #define USER_BC_SCALE_MAX 4 /* int: BC_SCALE_MAX */ 937 #define USER_BC_STRING_MAX 5 /* int: BC_STRING_MAX */ 938 #define USER_COLL_WEIGHTS_MAX 6 /* int: COLL_WEIGHTS_MAX */ 939 #define USER_EXPR_NEST_MAX 7 /* int: EXPR_NEST_MAX */ 940 #define USER_LINE_MAX 8 /* int: LINE_MAX */ 941 #define USER_RE_DUP_MAX 9 /* int: RE_DUP_MAX */ 942 #define USER_POSIX2_VERSION 10 /* int: POSIX2_VERSION */ 943 #define USER_POSIX2_C_BIND 11 /* int: POSIX2_C_BIND */ 944 #define USER_POSIX2_C_DEV 12 /* int: POSIX2_C_DEV */ 945 #define USER_POSIX2_CHAR_TERM 13 /* int: POSIX2_CHAR_TERM */ 946 #define USER_POSIX2_FORT_DEV 14 /* int: POSIX2_FORT_DEV */ 947 #define USER_POSIX2_FORT_RUN 15 /* int: POSIX2_FORT_RUN */ 948 #define USER_POSIX2_LOCALEDEF 16 /* int: POSIX2_LOCALEDEF */ 949 #define USER_POSIX2_SW_DEV 17 /* int: POSIX2_SW_DEV */ 950 #define USER_POSIX2_UPE 18 /* int: POSIX2_UPE */ 951 #define USER_STREAM_MAX 19 /* int: POSIX2_STREAM_MAX */ 952 #define USER_TZNAME_MAX 20 /* int: _POSIX_TZNAME_MAX */ 953 #define USER_ATEXIT_MAX 21 /* int: {ATEXIT_MAX} */ 954 #define USER_MAXID 22 /* number of valid user ids */ 955 956 #define CTL_USER_NAMES { \ 957 { 0, 0 }, \ 958 { "cs_path", CTLTYPE_STRING }, \ 959 { "bc_base_max", CTLTYPE_INT }, \ 960 { "bc_dim_max", CTLTYPE_INT }, \ 961 { "bc_scale_max", CTLTYPE_INT }, \ 962 { "bc_string_max", CTLTYPE_INT }, \ 963 { "coll_weights_max", CTLTYPE_INT }, \ 964 { "expr_nest_max", CTLTYPE_INT }, \ 965 { "line_max", CTLTYPE_INT }, \ 966 { "re_dup_max", CTLTYPE_INT }, \ 967 { "posix2_version", CTLTYPE_INT }, \ 968 { "posix2_c_bind", CTLTYPE_INT }, \ 969 { "posix2_c_dev", CTLTYPE_INT }, \ 970 { "posix2_char_term", CTLTYPE_INT }, \ 971 { "posix2_fort_dev", CTLTYPE_INT }, \ 972 { "posix2_fort_run", CTLTYPE_INT }, \ 973 { "posix2_localedef", CTLTYPE_INT }, \ 974 { "posix2_sw_dev", CTLTYPE_INT }, \ 975 { "posix2_upe", CTLTYPE_INT }, \ 976 { "stream_max", CTLTYPE_INT }, \ 977 { "tzname_max", CTLTYPE_INT }, \ 978 { "atexit_max", CTLTYPE_INT }, \ 979 } 980 981 /* 982 * CTL_DDB definitions 983 */ 984 #define DDBCTL_RADIX 1 /* int: Input and output radix */ 985 #define DDBCTL_MAXOFF 2 /* int: max symbol offset */ 986 #define DDBCTL_MAXWIDTH 3 /* int: width of the display line */ 987 #define DDBCTL_LINES 4 /* int: number of display lines */ 988 #define DDBCTL_TABSTOPS 5 /* int: tab width */ 989 #define DDBCTL_ONPANIC 6 /* int: DDB on panic if non-zero */ 990 #define DDBCTL_FROMCONSOLE 7 /* int: DDB via console if non-zero */ 991 #define DDBCTL_MAXID 8 /* number of valid DDB ids */ 992 993 #define CTL_DDB_NAMES { \ 994 { 0, 0 }, \ 995 { "radix", CTLTYPE_INT }, \ 996 { "maxoff", CTLTYPE_INT }, \ 997 { "maxwidth", CTLTYPE_INT }, \ 998 { "lines", CTLTYPE_INT }, \ 999 { "tabstops", CTLTYPE_INT }, \ 1000 { "onpanic", CTLTYPE_INT }, \ 1001 { "fromconsole", CTLTYPE_INT }, \ 1002 } 1003 1004 /* 1005 * CTL_DEBUG definitions 1006 * 1007 * Second level identifier specifies which debug variable. 1008 * Third level identifier specifies which structure component. 1009 */ 1010 #define CTL_DEBUG_NAME 0 /* string: variable name */ 1011 #define CTL_DEBUG_VALUE 1 /* int: variable value */ 1012 #define CTL_DEBUG_MAXID 20 1013 1014 /* 1015 * CTL_PROC subtype. Either a PID, or a magic value for the current proc. 1016 */ 1017 1018 #define PROC_CURPROC (~((u_int)1 << 31)) 1019 1020 /* 1021 * CTL_PROC tree: either corename (string), or a limit 1022 * (rlimit.<type>.{hard,soft}, int). 1023 */ 1024 #define PROC_PID_CORENAME 1 1025 #define PROC_PID_LIMIT 2 1026 #define PROC_PID_STOPFORK 3 1027 #define PROC_PID_STOPEXEC 4 1028 #define PROC_PID_STOPEXIT 5 1029 #define PROC_PID_MAXID 6 1030 1031 #define PROC_PID_NAMES { \ 1032 { 0, 0 }, \ 1033 { "corename", CTLTYPE_STRING }, \ 1034 { "rlimit", CTLTYPE_NODE }, \ 1035 { "stopfork", CTLTYPE_INT }, \ 1036 { "stopexec", CTLTYPE_INT }, \ 1037 { "stopexit", CTLTYPE_INT }, \ 1038 } 1039 1040 /* Limit types from <sys/resources.h> */ 1041 #define PROC_PID_LIMIT_CPU (RLIMIT_CPU+1) 1042 #define PROC_PID_LIMIT_FSIZE (RLIMIT_FSIZE+1) 1043 #define PROC_PID_LIMIT_DATA (RLIMIT_DATA+1) 1044 #define PROC_PID_LIMIT_STACK (RLIMIT_STACK+1) 1045 #define PROC_PID_LIMIT_CORE (RLIMIT_CORE+1) 1046 #define PROC_PID_LIMIT_RSS (RLIMIT_RSS+1) 1047 #define PROC_PID_LIMIT_MEMLOCK (RLIMIT_MEMLOCK+1) 1048 #define PROC_PID_LIMIT_NPROC (RLIMIT_NPROC+1) 1049 #define PROC_PID_LIMIT_NOFILE (RLIMIT_NOFILE+1) 1050 #define PROC_PID_LIMIT_SBSIZE (RLIMIT_SBSIZE+1) 1051 #define PROC_PID_LIMIT_AS (RLIMIT_AS+1) 1052 #define PROC_PID_LIMIT_NTHR (RLIMIT_NTHR+1) 1053 #define PROC_PID_LIMIT_MAXID (RLIM_NLIMITS+1) 1054 1055 #define PROC_PID_LIMIT_NAMES { \ 1056 { 0, 0 }, \ 1057 { "cputime", CTLTYPE_NODE }, \ 1058 { "filesize", CTLTYPE_NODE }, \ 1059 { "datasize", CTLTYPE_NODE }, \ 1060 { "stacksize", CTLTYPE_NODE }, \ 1061 { "coredumpsize", CTLTYPE_NODE }, \ 1062 { "memoryuse", CTLTYPE_NODE }, \ 1063 { "memorylocked", CTLTYPE_NODE }, \ 1064 { "maxproc", CTLTYPE_NODE }, \ 1065 { "descriptors", CTLTYPE_NODE }, \ 1066 { "sbsize", CTLTYPE_NODE }, \ 1067 { "vmemoryuse", CTLTYPE_NODE }, \ 1068 { "maxlwp", CTLTYPE_NODE }, \ 1069 } 1070 /* for each type, either hard or soft value */ 1071 #define PROC_PID_LIMIT_TYPE_SOFT 1 1072 #define PROC_PID_LIMIT_TYPE_HARD 2 1073 #define PROC_PID_LIMIT_TYPE_MAXID 3 1074 1075 #define PROC_PID_LIMIT_TYPE_NAMES { \ 1076 {0, 0}, \ 1077 { "soft", CTLTYPE_QUAD }, \ 1078 { "hard", CTLTYPE_QUAD }, \ 1079 } 1080 1081 /* 1082 * CTL_EMUL definitions 1083 * 1084 * Second level identifier specifies which emulation variable. 1085 * Subsequent levels are specified in the emulations themselves. 1086 */ 1087 #define EMUL_LINUX 1 1088 #define EMUL_LINUX32 5 1089 1090 #define EMUL_MAXID 6 1091 1092 #ifdef _KERNEL 1093 1094 #if defined(_KERNEL_OPT) 1095 #include "opt_sysctl.h" 1096 #endif 1097 1098 /* Root node of the kernel sysctl tree */ 1099 extern struct sysctlnode sysctl_root; 1100 1101 /* 1102 * A log of nodes created by a setup function or set of setup 1103 * functions so that they can be torn down in one "transaction" 1104 * when no longer needed. 1105 * 1106 * Users of the log merely pass a pointer to a pointer, and the sysctl 1107 * infrastructure takes care of the rest. 1108 */ 1109 struct sysctllog; 1110 1111 /* 1112 * CTL_DEBUG variables. 1113 * 1114 * These are declared as separate variables so that they can be 1115 * individually initialized at the location of their associated 1116 * variable. The loader prevents multiple use by issuing errors 1117 * if a variable is initialized in more than one place. They are 1118 * aggregated into an array in debug_sysctl(), so that it can 1119 * conveniently locate them when queried. If more debugging 1120 * variables are added, they must also be declared here and also 1121 * entered into the array. 1122 * 1123 * Note that the debug subtree is largely obsolescent in terms of 1124 * functionality now that we have dynamic sysctl, but the 1125 * infrastructure is retained for backwards compatibility. 1126 */ 1127 struct ctldebug { 1128 const char *debugname; /* name of debugging variable */ 1129 int *debugvar; /* pointer to debugging variable */ 1130 }; 1131 #ifdef DEBUG 1132 extern struct ctldebug debug0, debug1, debug2, debug3, debug4; 1133 extern struct ctldebug debug5, debug6, debug7, debug8, debug9; 1134 extern struct ctldebug debug10, debug11, debug12, debug13, debug14; 1135 extern struct ctldebug debug15, debug16, debug17, debug18, debug19; 1136 #endif /* DEBUG */ 1137 1138 #define SYSCTLFN_PROTO const int *, u_int, void *, \ 1139 size_t *, const void *, size_t, \ 1140 const int *, struct lwp *, const struct sysctlnode * 1141 #define SYSCTLFN_ARGS const int *name, u_int namelen, \ 1142 void *oldp, size_t *oldlenp, \ 1143 const void *newp, size_t newlen, \ 1144 const int *oname, struct lwp *l, \ 1145 const struct sysctlnode *rnode 1146 #define SYSCTLFN_CALL(node) name, namelen, oldp, \ 1147 oldlenp, newp, newlen, \ 1148 oname, l, node 1149 1150 #ifdef RUMP_USE_CTOR 1151 struct sysctl_setup_chain { 1152 void (*ssc_func)(struct sysctllog **); 1153 LIST_ENTRY(sysctl_setup_chain) ssc_entries; 1154 }; 1155 LIST_HEAD(sysctl_boot_chain, sysctl_setup_chain); 1156 #define _SYSCTL_REGISTER(name) \ 1157 static void sysctlctor_##name(void) __attribute__((constructor)); \ 1158 static void sysctlctor_##name(void) \ 1159 { \ 1160 static struct sysctl_setup_chain ssc = { \ 1161 .ssc_func = name, \ 1162 }; \ 1163 extern struct sysctl_boot_chain sysctl_boot_chain; \ 1164 LIST_INSERT_HEAD(&sysctl_boot_chain, &ssc, ssc_entries); \ 1165 } 1166 1167 #else /* RUMP_USE_CTOR */ 1168 1169 #define _SYSCTL_REGISTER(name) __link_set_add_text(sysctl_funcs, name); 1170 1171 #endif /* RUMP_USE_CTOR */ 1172 1173 #ifdef _MODULE 1174 1175 #define SYSCTL_SETUP_PROTO(name) \ 1176 void name(struct sysctllog **) 1177 #ifdef SYSCTL_DEBUG_SETUP 1178 #define SYSCTL_SETUP(name, desc) \ 1179 SYSCTL_SETUP_PROTO(name); \ 1180 static void __CONCAT(___,name)(struct sysctllog **); \ 1181 void name(struct sysctllog **clog) { \ 1182 printf("%s\n", desc); \ 1183 __CONCAT(___,name)(clog); } \ 1184 _SYSCTL_REGISTER(name); \ 1185 static void __CONCAT(___,name)(struct sysctllog **clog) 1186 #else /* !SYSCTL_DEBUG_SETUP */ 1187 #define SYSCTL_SETUP(name, desc) \ 1188 SYSCTL_SETUP_PROTO(name); \ 1189 _SYSCTL_REGISTER(name); \ 1190 void name(struct sysctllog **clog) 1191 #endif /* !SYSCTL_DEBUG_SETUP */ 1192 1193 #else /* !_MODULE */ 1194 1195 #define SYSCTL_SETUP_PROTO(name) 1196 #ifdef SYSCTL_DEBUG_SETUP 1197 #define SYSCTL_SETUP(name, desc) \ 1198 static void __CONCAT(___,name)(struct sysctllog **); \ 1199 static void name(struct sysctllog **clog) { \ 1200 printf("%s\n", desc); \ 1201 __CONCAT(___,name)(clog); } \ 1202 _SYSCTL_REGISTER(name); \ 1203 static void __CONCAT(___,name)(struct sysctllog **clog) 1204 #else /* !SYSCTL_DEBUG_SETUP */ 1205 #define SYSCTL_SETUP(name, desc) \ 1206 static void name(struct sysctllog **); \ 1207 _SYSCTL_REGISTER(name); \ 1208 static void name(struct sysctllog **clog) 1209 #endif /* !SYSCTL_DEBUG_SETUP */ 1210 1211 #endif /* !_MODULE */ 1212 1213 /* 1214 * Internal sysctl function calling convention: 1215 * 1216 * (*sysctlfn)(name, namelen, oldval, oldlenp, newval, newlen, 1217 * origname, lwp, node); 1218 * 1219 * The name parameter points at the next component of the name to be 1220 * interpreted. The namelen parameter is the number of integers in 1221 * the name. The origname parameter points to the start of the name 1222 * being parsed. The node parameter points to the node on which the 1223 * current operation is to be performed. 1224 */ 1225 typedef int (*sysctlfn)(SYSCTLFN_PROTO); 1226 1227 /* 1228 * used in more than just sysctl 1229 */ 1230 void fill_eproc(struct proc *, struct eproc *, bool); 1231 void fill_kproc2(struct proc *, struct kinfo_proc2 *, bool); 1232 1233 /* 1234 * subsystem setup 1235 */ 1236 void sysctl_init(void); 1237 void sysctl_basenode_init(void); 1238 void sysctl_finalize(void); 1239 1240 /* 1241 * typical syscall call order 1242 */ 1243 void sysctl_lock(bool); 1244 int sysctl_dispatch(SYSCTLFN_PROTO); 1245 void sysctl_unlock(void); 1246 void sysctl_relock(void); 1247 1248 /* 1249 * tree navigation primitives (must obtain lock before using these) 1250 */ 1251 int sysctl_locate(struct lwp *, const int *, u_int, 1252 const struct sysctlnode **, int *); 1253 int sysctl_query(SYSCTLFN_PROTO); 1254 int sysctl_create(SYSCTLFN_PROTO); 1255 int sysctl_destroy(SYSCTLFN_PROTO); 1256 int sysctl_lookup(SYSCTLFN_PROTO); 1257 int sysctl_describe(SYSCTLFN_PROTO); 1258 1259 /* 1260 * simple variadic interface for adding/removing nodes 1261 */ 1262 int sysctl_createv(struct sysctllog **, int, 1263 const struct sysctlnode **, const struct sysctlnode **, 1264 int, int, const char *, const char *, 1265 sysctlfn, u_quad_t, void *, size_t, ...); 1266 int sysctl_destroyv(struct sysctlnode *, ...); 1267 1268 #define VERIFY_FN(ctl_type, c_type) \ 1269 __always_inline static __inline void * \ 1270 __sysctl_verify_##ctl_type##_arg(c_type *arg) \ 1271 { \ 1272 return arg; \ 1273 } 1274 1275 VERIFY_FN(CTLTYPE_NODE, struct sysctlnode); 1276 VERIFY_FN(CTLTYPE_INT, int); 1277 VERIFY_FN(CTLTYPE_STRING, char); 1278 VERIFY_FN(CTLTYPE_QUAD, int64_t); 1279 VERIFY_FN(CTLTYPE_STRUCT, void); 1280 VERIFY_FN(CTLTYPE_BOOL, bool); 1281 VERIFY_FN(CTLTYPE_LONG, long); 1282 #undef VERIFY_FN 1283 1284 #define sysctl_createv(lg, cfl, rn, cn, fl, type, nm, desc, fn, qv, newp, ...) \ 1285 sysctl_createv(lg, cfl, rn, cn, fl, type, nm, desc, fn, qv, \ 1286 __sysctl_verify_##type##_arg(newp), __VA_ARGS__) 1287 1288 /* 1289 * miscellany 1290 */ 1291 void sysctl_dump(const struct sysctlnode *); 1292 void sysctl_free(struct sysctlnode *); 1293 void sysctl_teardown(struct sysctllog **); 1294 void sysctl_log_print(const struct sysctllog *); 1295 1296 #ifdef SYSCTL_INCLUDE_DESCR 1297 #define SYSCTL_DESCR(s) s 1298 #else /* SYSCTL_INCLUDE_DESCR */ 1299 #define SYSCTL_DESCR(s) NULL 1300 #endif /* SYSCTL_INCLUDE_DESCR */ 1301 1302 /* 1303 * simple interface similar to old interface for in-kernel consumption 1304 */ 1305 int old_sysctl(int *, u_int, void *, size_t *, void *, size_t, struct lwp *); 1306 1307 /* 1308 * these helpers are in other files (XXX so should the nodes be) or 1309 * are used by more than one node 1310 */ 1311 int sysctl_hw_tapenames(SYSCTLFN_PROTO); 1312 int sysctl_hw_tapestats(SYSCTLFN_PROTO); 1313 int sysctl_kern_vnode(SYSCTLFN_PROTO); 1314 int sysctl_net_inet_ip_ports(SYSCTLFN_PROTO); 1315 int sysctl_consdev(SYSCTLFN_PROTO); 1316 int sysctl_root_device(SYSCTLFN_PROTO); 1317 int sysctl_vfs_generic_fstypes(SYSCTLFN_PROTO); 1318 1319 /* 1320 * primitive helper stubs 1321 */ 1322 int sysctl_needfunc(SYSCTLFN_PROTO); 1323 int sysctl_notavail(SYSCTLFN_PROTO); 1324 int sysctl_null(SYSCTLFN_PROTO); 1325 1326 int sysctl_copyin(struct lwp *, const void *, void *, size_t); 1327 int sysctl_copyout(struct lwp *, const void *, void *, size_t); 1328 int sysctl_copyinstr(struct lwp *, const void *, void *, size_t, size_t *); 1329 1330 u_int sysctl_map_flags(const u_int *, u_int); 1331 1332 MALLOC_DECLARE(M_SYSCTLNODE); 1333 MALLOC_DECLARE(M_SYSCTLDATA); 1334 1335 extern const u_int sysctl_lwpflagmap[]; 1336 1337 #else /* !_KERNEL */ 1338 #include <sys/cdefs.h> 1339 1340 typedef void *sysctlfn; 1341 1342 __BEGIN_DECLS 1343 int sysctl(const int *, u_int, void *, size_t *, const void *, size_t); 1344 int sysctlbyname(const char *, void *, size_t *, const void *, size_t); 1345 int sysctlgetmibinfo(const char *, int *, u_int *, 1346 char *, size_t *, struct sysctlnode **, int); 1347 int sysctlnametomib(const char *, int *, size_t *); 1348 int proc_compare(const struct kinfo_proc2 *, const struct kinfo_lwp *, 1349 const struct kinfo_proc2 *, const struct kinfo_lwp *); 1350 void *asysctl(const int *, size_t, size_t *); 1351 void *asysctlbyname(const char *, size_t *); 1352 __END_DECLS 1353 1354 #endif /* !_KERNEL */ 1355 1356 #ifdef __COMPAT_SYSCTL 1357 /* 1358 * old node definitions go here 1359 */ 1360 #endif /* __COMPAT_SYSCTL */ 1361 1362 /* 1363 * padding makes alignment magically "work" for 32/64 compatibility at 1364 * the expense of making things bigger on 32 bit platforms. 1365 */ 1366 #if defined(_LP64) || (BYTE_ORDER == LITTLE_ENDIAN) 1367 #define __sysc_pad(type) union { uint64_t __sysc_upad; \ 1368 struct { type __sysc_sdatum; } __sysc_ustr; } 1369 #else 1370 #define __sysc_pad(type) union { uint64_t __sysc_upad; \ 1371 struct { uint32_t __sysc_spad; type __sysc_sdatum; } __sysc_ustr; } 1372 #endif 1373 #define __sysc_unpad(x) x.__sysc_ustr.__sysc_sdatum 1374 1375 /* 1376 * The following is for gcc2, which doesn't handle __sysc_unpad(). 1377 * The code gets a little less ugly this way. 1378 */ 1379 #define sysc_init_field(field, value) \ 1380 .field = { .__sysc_ustr = { .__sysc_sdatum = (value), }, } 1381 1382 struct sysctlnode { 1383 uint32_t sysctl_flags; /* flags and type */ 1384 int32_t sysctl_num; /* mib number */ 1385 char sysctl_name[SYSCTL_NAMELEN]; /* node name */ 1386 uint32_t sysctl_ver; /* node's version vs. rest of tree */ 1387 uint32_t __rsvd; 1388 union { 1389 struct { 1390 uint32_t suc_csize; /* size of child node array */ 1391 uint32_t suc_clen; /* number of valid children */ 1392 __sysc_pad(struct sysctlnode*) _suc_child; /* array of child nodes */ 1393 } scu_child; 1394 struct { 1395 __sysc_pad(void*) _sud_data; /* pointer to external data */ 1396 __sysc_pad(size_t) _sud_offset; /* offset to data */ 1397 } scu_data; 1398 int32_t scu_alias; /* node this node refers to */ 1399 int32_t scu_idata; /* immediate "int" data */ 1400 u_quad_t scu_qdata; /* immediate "u_quad_t" data */ 1401 bool scu_bdata; /* immediate bool data */ 1402 } sysctl_un; 1403 __sysc_pad(size_t) _sysctl_size; /* size of instrumented data */ 1404 __sysc_pad(sysctlfn) _sysctl_func; /* access helper function */ 1405 __sysc_pad(struct sysctlnode*) _sysctl_parent; /* parent of this node */ 1406 __sysc_pad(const char *) _sysctl_desc; /* description of node */ 1407 }; 1408 1409 /* 1410 * padded data 1411 */ 1412 #define suc_child __sysc_unpad(_suc_child) 1413 #define sud_data __sysc_unpad(_sud_data) 1414 #define sud_offset __sysc_unpad(_sud_offset) 1415 #define sysctl_size __sysc_unpad(_sysctl_size) 1416 #define sysctl_func __sysc_unpad(_sysctl_func) 1417 #define sysctl_parent __sysc_unpad(_sysctl_parent) 1418 #define sysctl_desc __sysc_unpad(_sysctl_desc) 1419 1420 /* 1421 * nested data (may also be padded) 1422 */ 1423 #define sysctl_csize sysctl_un.scu_child.suc_csize 1424 #define sysctl_clen sysctl_un.scu_child.suc_clen 1425 #define sysctl_child sysctl_un.scu_child.suc_child 1426 #define sysctl_data sysctl_un.scu_data.sud_data 1427 #define sysctl_offset sysctl_un.scu_data.sud_offset 1428 #define sysctl_alias sysctl_un.scu_alias 1429 #define sysctl_idata sysctl_un.scu_idata 1430 #define sysctl_qdata sysctl_un.scu_qdata 1431 #define sysctl_bdata sysctl_un.scu_bdata 1432 1433 /* 1434 * when requesting a description of a node (a set of nodes, actually), 1435 * you get back an "array" of these, where the actual length of the 1436 * descr_str is noted in descr_len (which includes the trailing nul 1437 * byte), rounded up to the nearest four (sizeof(int32_t) actually). 1438 * 1439 * NEXT_DESCR() will take a pointer to a description and advance it to 1440 * the next description. 1441 */ 1442 struct sysctldesc { 1443 int32_t descr_num; /* mib number of node */ 1444 uint32_t descr_ver; /* version of node */ 1445 uint32_t descr_len; /* length of description string */ 1446 char descr_str[1]; /* not really 1...see above */ 1447 }; 1448 1449 #define __sysc_desc_roundup(x) ((((x) - 1) | (sizeof(int32_t) - 1)) + 1) 1450 #define __sysc_desc_adv(d, l) \ 1451 (/*XXXUNCONST ptr cast*/(struct sysctldesc *) \ 1452 __UNCONST(((const char*)(d)) + offsetof(struct sysctldesc, descr_str) +\ 1453 __sysc_desc_roundup(l))) 1454 #define NEXT_DESCR(d) __sysc_desc_adv((d), (d)->descr_len) 1455 1456 static __inline const struct sysctlnode * 1457 sysctl_rootof(const struct sysctlnode *n) 1458 { 1459 while (n->sysctl_parent != NULL) 1460 n = n->sysctl_parent; 1461 return (n); 1462 } 1463 1464 #endif /* !_SYS_SYSCTL_H_ */ 1465